<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:553cdcfe-1839-4779-8960-2d3b243fb3fc,g:def5440a-14f5-47ed-9e2c-e34ab897aa36-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="lii-20220331.xsd#ConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_cc81f032-9053-4517-bff1-37b4f44a8c84" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_0edb91a1-dfe0-4041-9258-fabe101ec927" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_cc81f032-9053-4517-bff1-37b4f44a8c84" xlink:to="loc_us-gaap_LiabilitiesCurrent_0edb91a1-dfe0-4041-9258-fabe101ec927" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_f8cb5f01-8132-411e-923b-15815361dc30" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_cc81f032-9053-4517-bff1-37b4f44a8c84" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_f8cb5f01-8132-411e-923b-15815361dc30" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_fc2da709-82db-48b8-a9cb-8d7721179ab9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_cc81f032-9053-4517-bff1-37b4f44a8c84" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_fc2da709-82db-48b8-a9cb-8d7721179ab9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_f1dd16fd-50eb-4d5f-85e8-be702579e993" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_cc81f032-9053-4517-bff1-37b4f44a8c84" xlink:to="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_f1dd16fd-50eb-4d5f-85e8-be702579e993" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_22d2e7f4-1905-45d0-bfcf-be8fa6f55b12" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_cc81f032-9053-4517-bff1-37b4f44a8c84" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_22d2e7f4-1905-45d0-bfcf-be8fa6f55b12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_2cde7e4d-0ed9-47fc-965f-19dfb1de5ecf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:to="loc_us-gaap_PreferredStockValue_2cde7e4d-0ed9-47fc-965f-19dfb1de5ecf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_25e68973-e88e-4c0d-9838-91c7b7a4c0a5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:to="loc_us-gaap_CommonStockValue_25e68973-e88e-4c0d-9838-91c7b7a4c0a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_6bfa6c4e-2c35-41e0-8932-f841b26ea915" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_6bfa6c4e-2c35-41e0-8932-f841b26ea915" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_61cd8196-b6c1-491c-b94a-1d272d1875a0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_61cd8196-b6c1-491c-b94a-1d272d1875a0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_7ddf04bd-2310-4a4f-845d-48c2c7f8965d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_7ddf04bd-2310-4a4f-845d-48c2c7f8965d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_29fd7c7d-8068-4edf-b131-1e5cdced83dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff7bbab3-cbe7-437b-a955-58f37eb8f37a" xlink:to="loc_us-gaap_TreasuryStockValue_29fd7c7d-8068-4edf-b131-1e5cdced83dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_97ed086b-315c-477c-819e-5d55c3f8c317" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:to="loc_us-gaap_AssetsCurrent_97ed086b-315c-477c-819e-5d55c3f8c317" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_ca1dfbf6-a9c0-4928-8742-a135262c33da" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_ca1dfbf6-a9c0-4928-8742-a135262c33da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_295d064d-1e4b-40f9-b1ac-5d13d3d35bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_295d064d-1e4b-40f9-b1ac-5d13d3d35bb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_b09406a8-c3e1-4cfb-baaa-649e26897863" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:to="loc_us-gaap_Goodwill_b09406a8-c3e1-4cfb-baaa-649e26897863" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_d1af83cf-6d8a-4d27-a49e-06217197f49a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_d1af83cf-6d8a-4d27-a49e-06217197f49a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_f7146328-d4b3-473f-8ff6-90b861cefab2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b134b3c8-8139-4163-82f5-aca54129c56a" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_f7146328-d4b3-473f-8ff6-90b861cefab2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_c8109cb3-742d-4d0c-a2db-3babeb2c1444" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_f9418627-0cec-4ef8-a0bd-f281a92344e3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c8109cb3-742d-4d0c-a2db-3babeb2c1444" xlink:to="loc_us-gaap_Liabilities_f9418627-0cec-4ef8-a0bd-f281a92344e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8425cd55-75b2-48b6-a195-3746835f51d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c8109cb3-742d-4d0c-a2db-3babeb2c1444" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8425cd55-75b2-48b6-a195-3746835f51d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_8b556ab6-b9ee-4be9-a682-89f2e62910ff" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c8109cb3-742d-4d0c-a2db-3babeb2c1444" xlink:to="loc_us-gaap_CommitmentsAndContingencies_8b556ab6-b9ee-4be9-a682-89f2e62910ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_7b070ef3-eed9-4aa4-81d5-e4a5bba7072c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_701df794-7215-4853-906d-35ee4a45da08" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_7b070ef3-eed9-4aa4-81d5-e4a5bba7072c" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_701df794-7215-4853-906d-35ee4a45da08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_ac2e9ae1-20bc-4fb4-807a-389b16f011bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_7b070ef3-eed9-4aa4-81d5-e4a5bba7072c" xlink:to="loc_us-gaap_ShortTermInvestments_ac2e9ae1-20bc-4fb4-807a-389b16f011bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_86de0abf-f56b-4162-8a79-d82c0a717590" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_7b070ef3-eed9-4aa4-81d5-e4a5bba7072c" xlink:to="loc_us-gaap_ReceivablesNetCurrent_86de0abf-f56b-4162-8a79-d82c0a717590" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_40e2f888-ffd5-418b-9429-2bea45fb076e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_7b070ef3-eed9-4aa4-81d5-e4a5bba7072c" xlink:to="loc_us-gaap_InventoryNet_40e2f888-ffd5-418b-9429-2bea45fb076e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_63b4ab88-b8cc-4ed3-a246-38f96c977756" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_7b070ef3-eed9-4aa4-81d5-e4a5bba7072c" xlink:to="loc_us-gaap_OtherAssetsCurrent_63b4ab88-b8cc-4ed3-a246-38f96c977756" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_8d61a5b0-f646-45e1-99f6-a4092dd422d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_cd2da775-1228-4cbb-83d4-f920331ea245" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8d61a5b0-f646-45e1-99f6-a4092dd422d9" xlink:to="loc_us-gaap_AccountsPayableCurrent_cd2da775-1228-4cbb-83d4-f920331ea245" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_554d5ae2-6a7e-497b-9d1a-4947320dab40" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8d61a5b0-f646-45e1-99f6-a4092dd422d9" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_554d5ae2-6a7e-497b-9d1a-4947320dab40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_2424c55c-92d5-4c4a-88b4-3b4d73f6b208" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8d61a5b0-f646-45e1-99f6-a4092dd422d9" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_2424c55c-92d5-4c4a-88b4-3b4d73f6b208" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_1cb6de93-f34a-411a-b32c-b633a071c3ff" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8d61a5b0-f646-45e1-99f6-a4092dd422d9" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_1cb6de93-f34a-411a-b32c-b633a071c3ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_aaec6d56-0f9b-4e7f-8cdd-e394f3c3e792" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8d61a5b0-f646-45e1-99f6-a4092dd422d9" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_aaec6d56-0f9b-4e7f-8cdd-e394f3c3e792" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/ConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="lii-20220331.xsd#ConsolidatedStatementsofOperations"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/ConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f536cce-5fc6-478a-b95d-1af7cfa70abe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_5a6609f3-911e-4070-816f-dd6968cbec2e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f536cce-5fc6-478a-b95d-1af7cfa70abe" xlink:to="loc_us-gaap_OperatingIncomeLoss_5a6609f3-911e-4070-816f-dd6968cbec2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_beb4b879-b58a-4312-a50c-1d96975661f0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f536cce-5fc6-478a-b95d-1af7cfa70abe" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_beb4b879-b58a-4312-a50c-1d96975661f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_bfff4fa7-03e3-4d56-acc6-bb321a4f69c3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f536cce-5fc6-478a-b95d-1af7cfa70abe" xlink:to="loc_us-gaap_InterestExpense_bfff4fa7-03e3-4d56-acc6-bb321a4f69c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_Noncashpensionsettlementloss_6258fad4-5f00-4fe7-a8a8-abac5e10d492" xlink:href="lii-20220331.xsd#lii_Noncashpensionsettlementloss"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f536cce-5fc6-478a-b95d-1af7cfa70abe" xlink:to="loc_lii_Noncashpensionsettlementloss_6258fad4-5f00-4fe7-a8a8-abac5e10d492" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_9f23dd40-01f4-4403-81b7-b930dadfaed5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_3da7ccb0-18de-4f99-ad46-58d5c696e096" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_9f23dd40-01f4-4403-81b7-b930dadfaed5" xlink:to="loc_us-gaap_Revenues_3da7ccb0-18de-4f99-ad46-58d5c696e096" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_28d19c01-27bb-430a-a05a-ebbdb3129289" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_9f23dd40-01f4-4403-81b7-b930dadfaed5" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_28d19c01-27bb-430a-a05a-ebbdb3129289" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_66db5f21-71c1-4590-8682-b745886296b3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5e292855-aa7d-4ec8-8f5c-32ac927976a8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_66db5f21-71c1-4590-8682-b745886296b3" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5e292855-aa7d-4ec8-8f5c-32ac927976a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_a19794bd-8b9f-405d-a222-e14f15a95514" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_66db5f21-71c1-4590-8682-b745886296b3" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_a19794bd-8b9f-405d-a222-e14f15a95514" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_aa2848d9-8af8-4fbd-8886-ef73b8c0cfd4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_85119770-e3d0-46ec-9ac8-e757d57e9680" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_aa2848d9-8af8-4fbd-8886-ef73b8c0cfd4" xlink:to="loc_us-gaap_GrossProfit_85119770-e3d0-46ec-9ac8-e757d57e9680" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_286803da-e664-4e00-9fd9-f305dfe672f3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_aa2848d9-8af8-4fbd-8886-ef73b8c0cfd4" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_286803da-e664-4e00-9fd9-f305dfe672f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_dc15e56a-ed53-4ae8-8af3-f9ae47308dc3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_aa2848d9-8af8-4fbd-8886-ef73b8c0cfd4" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_dc15e56a-ed53-4ae8-8af3-f9ae47308dc3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_dd9b76e3-74e7-4691-bde9-0e1ac6903b21" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_aa2848d9-8af8-4fbd-8886-ef73b8c0cfd4" xlink:to="loc_us-gaap_RestructuringCharges_dd9b76e3-74e7-4691-bde9-0e1ac6903b21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_73ce34a5-1ef0-4e4a-9720-2752c784673b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_aa2848d9-8af8-4fbd-8886-ef73b8c0cfd4" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_73ce34a5-1ef0-4e4a-9720-2752c784673b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="simple" xlink:href="lii-20220331.xsd#ConsolidatedStatementsofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_700dc849-95ca-422d-933b-2a30396014db" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_6f431d68-a4dd-4e24-9310-05bd2e6675c8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_700dc849-95ca-422d-933b-2a30396014db" xlink:to="loc_us-gaap_NetIncomeLoss_6f431d68-a4dd-4e24-9310-05bd2e6675c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_8cc5368f-0446-4bc2-8f86-25fc0eec3a16" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_700dc849-95ca-422d-933b-2a30396014db" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_8cc5368f-0446-4bc2-8f86-25fc0eec3a16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax_d39c3727-196b-490f-8c09-90769632a377" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax_d39c3727-196b-490f-8c09-90769632a377" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_fcf4c0b1-35db-4081-96d3-da087e60d75e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_fcf4c0b1-35db-4081-96d3-da087e60d75e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_8f403a30-bbfd-4eee-b6aa-abb24dc7207d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_8f403a30-bbfd-4eee-b6aa-abb24dc7207d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossPensionSettlementsBeforeReclassificationAndTax_aedaeecc-3635-4141-91ac-b3c7ed5b7b7f" xlink:href="lii-20220331.xsd#lii_OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossPensionSettlementsBeforeReclassificationAndTax"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:to="loc_lii_OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossPensionSettlementsBeforeReclassificationAndTax_aedaeecc-3635-4141-91ac-b3c7ed5b7b7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_3d311ca3-44ee-48ce-b21a-5d6432e08eea" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_3d311ca3-44ee-48ce-b21a-5d6432e08eea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_6a2372d9-83c0-4450-b1e2-bb29b8affd21" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_0cf00638-6266-4c6d-be1d-92bedaab8c3e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_6a2372d9-83c0-4450-b1e2-bb29b8affd21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_751bf671-d181-4628-92b5-e7ac32bbc816" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_8c2dcf5f-06bb-47ea-9015-850537b80e9c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_751bf671-d181-4628-92b5-e7ac32bbc816" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_8c2dcf5f-06bb-47ea-9015-850537b80e9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_8fdba978-0fc0-4355-b7ce-0037ffac3b14" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_751bf671-d181-4628-92b5-e7ac32bbc816" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_8fdba978-0fc0-4355-b7ce-0037ffac3b14" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="lii-20220331.xsd#ConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9fae142d-f75c-4b32-a3bd-82834ffb758d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_b8792fa1-1348-4811-8e91-20cb9fb39c57" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9fae142d-f75c-4b32-a3bd-82834ffb758d" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_b8792fa1-1348-4811-8e91-20cb9fb39c57" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromShortTermInvestments_aa887aa2-a649-461d-a4ae-98726bd7995b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForProceedsFromShortTermInvestments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9fae142d-f75c-4b32-a3bd-82834ffb758d" xlink:to="loc_us-gaap_PaymentsForProceedsFromShortTermInvestments_aa887aa2-a649-461d-a4ae-98726bd7995b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_d6fc5c55-0432-4c01-a868-42b4e9400811" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9fae142d-f75c-4b32-a3bd-82834ffb758d" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_d6fc5c55-0432-4c01-a868-42b4e9400811" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans_4184b527-5288-43f5-a3aa-a1c083814c19" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans_4184b527-5288-43f5-a3aa-a1c083814c19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfOtherDebt_75a7417f-de9f-4ae7-b20d-b45a137ca48e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfOtherDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_RepaymentsOfOtherDebt_75a7417f-de9f-4ae7-b20d-b45a137ca48e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_0c6ae798-31ee-434b-a125-2f15f8aaea82" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_0c6ae798-31ee-434b-a125-2f15f8aaea82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_495afc53-9d98-420b-8148-d83f3e1ad49d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_495afc53-9d98-420b-8148-d83f3e1ad49d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_c9e78667-78df-4505-9dcc-4684fdc5d53b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_c9e78667-78df-4505-9dcc-4684fdc5d53b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_979d0b6d-de71-4ccd-8eb9-b846aa812b91" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_979d0b6d-de71-4ccd-8eb9-b846aa812b91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromOtherDebt_c65eb9dc-6c19-47aa-85ff-cacf2394ed29" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromOtherDebt"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_ProceedsFromOtherDebt_c65eb9dc-6c19-47aa-85ff-cacf2394ed29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_248e5a9c-0ec0-4d47-a7bc-358aae4d33dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_248e5a9c-0ec0-4d47-a7bc-358aae4d33dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfSeniorDebt_599d5d27-0f77-4733-a6bc-e0d71f77a470" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfSeniorDebt"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_5690a707-e8f1-4c50-931b-af8f701eb4d2" xlink:to="loc_us-gaap_RepaymentsOfSeniorDebt_599d5d27-0f77-4733-a6bc-e0d71f77a470" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_54a0e267-c162-4658-b526-872ff4a873e3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_665785e4-a731-4e41-b8f0-9c5f65be079a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_54a0e267-c162-4658-b526-872ff4a873e3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_665785e4-a731-4e41-b8f0-9c5f65be079a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3505abfd-12fe-4c11-be68-1fa3a5ab7623" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_54a0e267-c162-4658-b526-872ff4a873e3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_3505abfd-12fe-4c11-be68-1fa3a5ab7623" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_18f6a9f2-336f-4255-9d3f-89ad0598d0e2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_54a0e267-c162-4658-b526-872ff4a873e3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_18f6a9f2-336f-4255-9d3f-89ad0598d0e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable_932a16ee-1948-43fa-953a-62a9ce81a9ed" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsAndNotesReceivable_932a16ee-1948-43fa-953a-62a9ce81a9ed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCosts_96ee3ca8-e733-4872-9a2e-c4d4f4af42a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_RestructuringCosts_96ee3ca8-e733-4872-9a2e-c4d4f4af42a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_4a1cb9a5-e89e-4bf7-8f17-0ef9f5354d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_4a1cb9a5-e89e-4bf7-8f17-0ef9f5354d9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_475c57ad-d2bb-46db-8348-2c4f23bf8e03" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_475c57ad-d2bb-46db-8348-2c4f23bf8e03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_223f8181-4fc7-4fc0-a626-97933d642762" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_223f8181-4fc7-4fc0-a626-97933d642762" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionExpense_2daf4851-c916-4f08-ba04-3fe8089687b0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PensionExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_PensionExpense_2daf4851-c916-4f08-ba04-3fe8089687b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_207f1a54-5a2f-42de-825c-4f3dc556c6b5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_DepreciationAndAmortization_207f1a54-5a2f-42de-825c-4f3dc556c6b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_f234e511-00f0-45c1-b7b3-a53d542fb9bd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_f234e511-00f0-45c1-b7b3-a53d542fb9bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_aa6b5c52-3ce7-491c-bb40-f86b00d4b68f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_aa6b5c52-3ce7-491c-bb40-f86b00d4b68f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_b6086473-7b3d-49d6-bcfb-c901ea655a6e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_b6086473-7b3d-49d6-bcfb-c901ea655a6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivatives_cb82412a-e03c-4165-b84a-493f3a0e344b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivatives"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_UnrealizedGainLossOnDerivatives_cb82412a-e03c-4165-b84a-493f3a0e344b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_e0275c26-8661-4579-9fa3-4d1e179cdc45" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_e0275c26-8661-4579-9fa3-4d1e179cdc45" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionContributions_7b858652-a3b5-4672-bacd-2451c1871e21" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PensionContributions"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_PensionContributions_7b858652-a3b5-4672-bacd-2451c1871e21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInLeasingReceivables_225b4f2d-92ed-44d4-8ec2-71577c7af51d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInLeasingReceivables"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInLeasingReceivables_225b4f2d-92ed-44d4-8ec2-71577c7af51d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_15d10e6e-abee-4a67-b9c6-02c1e779f835" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_ShareBasedCompensation_15d10e6e-abee-4a67-b9c6-02c1e779f835" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_0bad2282-24eb-4d30-a3a6-e77b2e7115c2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_0bad2282-24eb-4d30-a3a6-e77b2e7115c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_d177f25b-18c3-436f-b751-cf1e9f51bc45" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_NetIncomeLoss_d177f25b-18c3-436f-b751-cf1e9f51bc45" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_e491ed1d-ea21-4a01-875b-abeebee9a79b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_e491ed1d-ea21-4a01-875b-abeebee9a79b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7bf06147-0d1b-4121-8c38-20f253eb5090" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="19" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dba2204d-fa4e-4995-bdce-f8158466c0d0" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_7bf06147-0d1b-4121-8c38-20f253eb5090" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/ReportableBusinessSegmentsSegmentDataDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#ReportableBusinessSegmentsSegmentDataDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/ReportableBusinessSegmentsSegmentDataDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_2564d3c2-c07f-4585-8bce-b91845ff0a60" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_SegmentProfitAndLoss_63df649c-1205-40dc-9479-052e65c6c1fa" xlink:href="lii-20220331.xsd#lii_SegmentProfitAndLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_2564d3c2-c07f-4585-8bce-b91845ff0a60" xlink:to="loc_lii_SegmentProfitAndLoss_63df649c-1205-40dc-9479-052e65c6c1fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_SegmentReportingReconcilingItemInLossesAndOtherExpensesFromSegmentToConsolidatedAmount_8ce3608f-246a-4aca-83f9-6ee368d42b7b" xlink:href="lii-20220331.xsd#lii_SegmentReportingReconcilingItemInLossesAndOtherExpensesFromSegmentToConsolidatedAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_2564d3c2-c07f-4585-8bce-b91845ff0a60" xlink:to="loc_lii_SegmentReportingReconcilingItemInLossesAndOtherExpensesFromSegmentToConsolidatedAmount_8ce3608f-246a-4aca-83f9-6ee368d42b7b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_baa9180e-568b-4b08-8cf4-d6101889dc76" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_2564d3c2-c07f-4585-8bce-b91845ff0a60" xlink:to="loc_us-gaap_RestructuringCharges_baa9180e-568b-4b08-8cf4-d6101889dc76" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ad081ca8-7140-449e-b146-1d3d2794297b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_5396b039-2470-4dbc-8a01-781b97d92bac" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ad081ca8-7140-449e-b146-1d3d2794297b" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_5396b039-2470-4dbc-8a01-781b97d92bac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_6278b27b-a682-4656-92a5-1eccca3d6ba7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ad081ca8-7140-449e-b146-1d3d2794297b" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_6278b27b-a682-4656-92a5-1eccca3d6ba7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/CommitmentsandContingenciesLiabilitiesforEstimatedProductWarrantyCostsDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#CommitmentsandContingenciesLiabilitiesforEstimatedProductWarrantyCostsDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/CommitmentsandContingenciesLiabilitiesforEstimatedProductWarrantyCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrual_5f9b57b4-f619-45fa-9a80-4750b9c31c75" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrual"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualNoncurrent_76ca8e58-bd62-4f1a-8c27-db527f1d390e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrualNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProductWarrantyAccrual_5f9b57b4-f619-45fa-9a80-4750b9c31c75" xlink:to="loc_us-gaap_ProductWarrantyAccrualNoncurrent_76ca8e58-bd62-4f1a-8c27-db527f1d390e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_be86b5a4-96f4-4935-977e-403e18c42716" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProductWarrantyAccrual_5f9b57b4-f619-45fa-9a80-4750b9c31c75" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_be86b5a4-96f4-4935-977e-403e18c42716" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/RevenueRecognitionNetContractAssetsLiabilitiesDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#RevenueRecognitionNetContractAssetsLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/RevenueRecognitionNetContractAssetsLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lii_ContractwithCustomerAssetLiabilityNet_a4bdeb19-8420-4c45-a0cb-e29390b0bba9" xlink:href="lii-20220331.xsd#lii_ContractwithCustomerAssetLiabilityNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_10c2dc23-6dc6-4efc-af15-a54fafe3481a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lii_ContractwithCustomerAssetLiabilityNet_a4bdeb19-8420-4c45-a0cb-e29390b0bba9" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_10c2dc23-6dc6-4efc-af15-a54fafe3481a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_1d2a122b-766f-4eb1-8a4a-5b80e3c318e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lii_ContractwithCustomerAssetLiabilityNet_a4bdeb19-8420-4c45-a0cb-e29390b0bba9" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_1d2a122b-766f-4eb1-8a4a-5b80e3c318e1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/InventoriesDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#InventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_0f8365bd-48df-454f-b8e3-c6c7af07a87a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryGross_8616d2dc-4681-40b4-ae04-549e577584ec" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_0f8365bd-48df-454f-b8e3-c6c7af07a87a" xlink:to="loc_us-gaap_InventoryGross_8616d2dc-4681-40b4-ae04-549e577584ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryLIFOReserve_3f8d1f88-be3b-4c50-a11c-978ebd27bf61" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryLIFOReserve"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_0f8365bd-48df-454f-b8e3-c6c7af07a87a" xlink:to="loc_us-gaap_InventoryLIFOReserve_3f8d1f88-be3b-4c50-a11c-978ebd27bf61" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryGross_b4b2281b-7cfd-4917-bc6d-fda53c3ad027" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoods_9b8421f8-ffde-43c7-80d5-86a85ed6b4af" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryFinishedGoods"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryGross_b4b2281b-7cfd-4917-bc6d-fda53c3ad027" xlink:to="loc_us-gaap_InventoryFinishedGoods_9b8421f8-ffde-43c7-80d5-86a85ed6b4af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcess_1b6b55e5-6a99-4b19-8a05-46c4ac93c419" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryWorkInProcess"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryGross_b4b2281b-7cfd-4917-bc6d-fda53c3ad027" xlink:to="loc_us-gaap_InventoryWorkInProcess_1b6b55e5-6a99-4b19-8a05-46c4ac93c419" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_a06b7a31-787b-46b2-88c4-66900c63388f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryRawMaterialsAndSupplies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryGross_b4b2281b-7cfd-4917-bc6d-fda53c3ad027" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSupplies_a06b7a31-787b-46b2-88c4-66900c63388f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/DerivativesAOCLRelatedtoCashFlowHedgesDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#DerivativesAOCLRelatedtoCashFlowHedgesDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/DerivativesAOCLRelatedtoCashFlowHedgesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_4d8b9c2a-4275-4f68-9fd3-7283334b665e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1_b763f61a-cf86-4a3e-ade9-d3b9ad90bceb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_4d8b9c2a-4275-4f68-9fd3-7283334b665e" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1_b763f61a-cf86-4a3e-ade9-d3b9ad90bceb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesProvisionBenefitForTax_fe57c640-1c30-45c6-b9f7-631225f5d92c" xlink:href="lii-20220331.xsd#lii_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesProvisionBenefitForTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_4d8b9c2a-4275-4f68-9fd3-7283334b665e" xlink:to="loc_lii_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesProvisionBenefitForTax_fe57c640-1c30-45c6-b9f7-631225f5d92c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/PensionBenefitPlansDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#PensionBenefitPlansDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/PensionBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_4195d796-1be1-42ba-b284-76947517fd90" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_4195d796-1be1-42ba-b284-76947517fd90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_f20defb9-3dbb-49d7-8bc1-c7eab6b953cd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_f20defb9-3dbb-49d7-8bc1-c7eab6b953cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_1e923a4f-ebd1-4377-ae85-4543424357b9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_1e923a4f-ebd1-4377-ae85-4543424357b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1_75bc75a1-b150-49c8-bbab-f7e83374f804" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1_75bc75a1-b150-49c8-bbab-f7e83374f804" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_2c92538e-d08c-4e06-8533-a6e652d5c79d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_2c92538e-d08c-4e06-8533-a6e652d5c79d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_0193bb0c-0593-43b2-a257-f6eed8613d23" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_0193bb0c-0593-43b2-a257-f6eed8613d23" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanOtherCosts_ebce2288-0c81-4a1e-a553-aaf43cb63d65" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanOtherCosts"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_91368467-9763-41d5-ac2f-cb65dab667a6" xlink:to="loc_us-gaap_DefinedBenefitPlanOtherCosts_ebce2288-0c81-4a1e-a553-aaf43cb63d65" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/LinesofCreditandFinancingArrangementsOutstandingDebtObligationsDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#LinesofCreditandFinancingArrangementsOutstandingDebtObligationsDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/LinesofCreditandFinancingArrangementsOutstandingDebtObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_caf22141-e12a-497e-9630-ce36365fc939" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_02ab2272-50a3-47ad-800b-5575e04c3947" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_caf22141-e12a-497e-9630-ce36365fc939" xlink:to="loc_us-gaap_LongTermDebt_02ab2272-50a3-47ad-800b-5575e04c3947" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNoncurrentGross_a72b2205-7a84-47cf-8616-65d09d664325" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFinanceCostsNoncurrentGross"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_caf22141-e12a-497e-9630-ce36365fc939" xlink:to="loc_us-gaap_DeferredFinanceCostsNoncurrentGross_a72b2205-7a84-47cf-8616-65d09d664325" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredLongTermDebt_0cb0111e-1151-4873-8fd5-e03f0148978d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SecuredLongTermDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_caf22141-e12a-497e-9630-ce36365fc939" xlink:to="loc_us-gaap_SecuredLongTermDebt_0cb0111e-1151-4873-8fd5-e03f0148978d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_5b0c66c7-60f3-4245-a255-369cf570c38a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_caf22141-e12a-497e-9630-ce36365fc939" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_5b0c66c7-60f3-4245-a255-369cf570c38a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_ffcd0dd0-1212-4dc1-a1a1-0c5133fb2293" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_02fd0374-12c7-47fc-a800-f1762a0e90e7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_ffcd0dd0-1212-4dc1-a1a1-0c5133fb2293" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_02fd0374-12c7-47fc-a800-f1762a0e90e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_57549c7a-e933-43f7-ab81-59a724e8f66b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_ffcd0dd0-1212-4dc1-a1a1-0c5133fb2293" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_57549c7a-e933-43f7-ab81-59a724e8f66b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/LinesofCreditandFinancingArrangementsEligibleAmountsAvailableandBeneficialInterestSoldDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#LinesofCreditandFinancingArrangementsEligibleAmountsAvailableandBeneficialInterestSoldDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/LinesofCreditandFinancingArrangementsEligibleAmountsAvailableandBeneficialInterestSoldDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lii_AssetSecuritizationBorrowingCapacity_ed3704f5-e548-47c2-8330-8db253694856" xlink:href="lii-20220331.xsd#lii_AssetSecuritizationBorrowingCapacity"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_EligibleAmountAvailableUnderAssetSecuritization_c054a290-037d-49fe-806d-cb06ff520133" xlink:href="lii-20220331.xsd#lii_EligibleAmountAvailableUnderAssetSecuritization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lii_AssetSecuritizationBorrowingCapacity_ed3704f5-e548-47c2-8330-8db253694856" xlink:to="loc_lii_EligibleAmountAvailableUnderAssetSecuritization_c054a290-037d-49fe-806d-cb06ff520133" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_lii_BeneficialInterestsSoldunderAssetSecuritization_26b881aa-e105-40c5-ac26-9b8b248e65bf" xlink:href="lii-20220331.xsd#lii_BeneficialInterestsSoldunderAssetSecuritization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_lii_AssetSecuritizationBorrowingCapacity_ed3704f5-e548-47c2-8330-8db253694856" xlink:to="loc_lii_BeneficialInterestsSoldunderAssetSecuritization_26b881aa-e105-40c5-ac26-9b8b248e65bf" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.lennoxinternational.com/role/ComprehensiveIncomeChangesinAOCLDetails" xlink:type="simple" xlink:href="lii-20220331.xsd#ComprehensiveIncomeChangesinAOCLDetails"/>
  <link:calculationLink xlink:role="http://www.lennoxinternational.com/role/ComprehensiveIncomeChangesinAOCLDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_aecdf0e3-0a90-4192-96c8-d01e3211f332" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_adcc9f09-5a45-466d-9eac-bfabc6f30aaf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_aecdf0e3-0a90-4192-96c8-d01e3211f332" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_adcc9f09-5a45-466d-9eac-bfabc6f30aaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_4052123f-7731-4525-85f8-e4b4899af782" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_aecdf0e3-0a90-4192-96c8-d01e3211f332" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_4052123f-7731-4525-85f8-e4b4899af782" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
