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    <link:label id="lab_lii_MaximumSecuritizationAsPercentageOfNetPoolBalance_D177FA1FD7FD9914B48DE9A83A8C9E73_verboseLabel_en-US" xlink:label="lab_lii_MaximumSecuritizationAsPercentageOfNetPoolBalance_D177FA1FD7FD9914B48DE9A83A8C9E73" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maximum securitization as percentage of net pool balance</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_lii_AssetSecuritizationMember_57F9CB4B43CDA6F3FCCDE9A83AB95E62" xlink:to="lab_lii_AssetSecuritizationMember_57F9CB4B43CDA6F3FCCDE9A83AB95E62" xlink:type="arc" />
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    <link:loc xlink:href="lii-20180331.xsd#lii_CopperCommodityContractMember" xlink:label="loc_lii_CopperCommodityContractMember_14736D34D167BD7F8A9CE188FA7E1CA4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_lii_CopperCommodityContractMember_14736D34D167BD7F8A9CE188FA7E1CA4" xlink:to="lab_lii_CopperCommodityContractMember_14736D34D167BD7F8A9CE188FA7E1CA4" xlink:type="arc" />
    <link:label id="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1_terseLabel_en-US" xlink:label="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aluminum Commodity Contract [Member]</link:label>
    <link:label id="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1_label_en-US" xlink:label="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aluminum Commodity Contract [Member]</link:label>
    <link:label id="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1_documentation_en-US" xlink:label="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aluminum commodity contract.</link:label>
    <link:loc xlink:href="lii-20180331.xsd#lii_AluminumCommodityContractMember" xlink:label="loc_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1" xlink:to="lab_lii_AluminumCommodityContractMember_1F1AACCD635DC0F8335EE188FA7EA8C1" xlink:type="arc" />
    <link:label id="lab_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1_terseLabel_en-US" xlink:label="lab_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Chinese Yuan [Member]</link:label>
    <link:label id="lab_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1_label_en-US" xlink:label="lab_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">China, Yuan Renminbi</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_CNY" xlink:label="loc_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1" xlink:to="lab_currency_CNY_7CC80F7839AA9C0988E3E188FA80C8F1" xlink:type="arc" />
    <link:label id="lab_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB_terseLabel_en-US" xlink:label="lab_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Euro [Member]</link:label>
    <link:label id="lab_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB_label_en-US" xlink:label="lab_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Euro Member Countries, Euro</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_EUR" xlink:label="loc_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB" xlink:to="lab_currency_EUR_F30BA91F97C83E609DD4E188FA8013DB" xlink:type="arc" />
    <link:label id="lab_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A_terseLabel_en-US" xlink:label="lab_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">British Pounds [Member]</link:label>
    <link:label id="lab_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A_label_en-US" xlink:label="lab_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">United Kingdom, Pounds</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_GBP" xlink:label="loc_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A" xlink:to="lab_currency_GBP_B6FA2E167DFB0131A23CE188FA80A18A" xlink:type="arc" />
    <link:label id="lab_currency_SGD_7FA270321BF3140F1E4FE188FA819556_terseLabel_en-US" xlink:label="lab_currency_SGD_7FA270321BF3140F1E4FE188FA819556" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Singapore, Dollars [Member]</link:label>
    <link:label id="lab_currency_SGD_7FA270321BF3140F1E4FE188FA819556_label_en-US" xlink:label="lab_currency_SGD_7FA270321BF3140F1E4FE188FA819556" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Singapore, Dollars</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_SGD" xlink:label="loc_currency_SGD_7FA270321BF3140F1E4FE188FA819556" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_SGD_7FA270321BF3140F1E4FE188FA819556" xlink:to="lab_currency_SGD_7FA270321BF3140F1E4FE188FA819556" xlink:type="arc" />
    <link:label id="lab_currency_AUD_395AB2F98F432E083EA4E188FA8117CF_terseLabel_en-US" xlink:label="lab_currency_AUD_395AB2F98F432E083EA4E188FA8117CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Australia Dollar [Member]</link:label>
    <link:label id="lab_currency_AUD_395AB2F98F432E083EA4E188FA8117CF_label_en-US" xlink:label="lab_currency_AUD_395AB2F98F432E083EA4E188FA8117CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Australia, Dollars</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_AUD" xlink:label="loc_currency_AUD_395AB2F98F432E083EA4E188FA8117CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_AUD_395AB2F98F432E083EA4E188FA8117CF" xlink:to="lab_currency_AUD_395AB2F98F432E083EA4E188FA8117CF" xlink:type="arc" />
    <link:label id="lab_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2_terseLabel_en-US" xlink:label="lab_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">New Zealand Dollar [Member]</link:label>
    <link:label id="lab_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2_label_en-US" xlink:label="lab_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Zealand, Dollars</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_NZD" xlink:label="loc_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2" xlink:to="lab_currency_NZD_E4306E6338BF0DA30A57E188FA8129C2" xlink:type="arc" />
    <link:label id="lab_currency_INR_74D48AC4585533AD72BEE188FA8204B4_terseLabel_en-US" xlink:label="lab_currency_INR_74D48AC4585533AD72BEE188FA8204B4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Indian Rupee [Member]</link:label>
    <link:label id="lab_currency_INR_74D48AC4585533AD72BEE188FA8204B4_label_en-US" xlink:label="lab_currency_INR_74D48AC4585533AD72BEE188FA8204B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">India, Rupees</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_INR" xlink:label="loc_currency_INR_74D48AC4585533AD72BEE188FA8204B4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_INR_74D48AC4585533AD72BEE188FA8204B4" xlink:to="lab_currency_INR_74D48AC4585533AD72BEE188FA8204B4" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReceivablesNetCurrent_B5740AC2F1CF8A9A1F90E9A83C14C11A_verboseLabel_en-US" xlink:label="lab_us-gaap_ReceivablesNetCurrent_B5740AC2F1CF8A9A1F90E9A83C14C11A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accounts and notes receivable, net of allowances of $6.0 and $5.9 in 2018 and 2017, respectively</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaap_ReceivablesNetCurrent_B5740AC2F1CF8A9A1F90E9A83C14C11A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReceivablesNetCurrent_B5740AC2F1CF8A9A1F90E9A83C14C11A" xlink:to="lab_us-gaap_ReceivablesNetCurrent_B5740AC2F1CF8A9A1F90E9A83C14C11A" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets held for sale</link:label>
    <link:label id="lab_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD_label_en-US" xlink:label="lab_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets Held-for-sale, Not Part of Disposal Group, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent" xlink:label="loc_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD" xlink:to="lab_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_E129D5EFEECCEF2A069AE9A83C15FBBD" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_50EC2658DAF4A30E52A7E9A83C15A12F_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_50EC2658DAF4A30E52A7E9A83C15A12F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment, net of accumulated depreciation of $763.9 and $774.2 in 2018 and 2017, respectively</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_50EC2658DAF4A30E52A7E9A83C15A12F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_50EC2658DAF4A30E52A7E9A83C15A12F" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_50EC2658DAF4A30E52A7E9A83C15A12F" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities held for sale</link:label>
    <link:label id="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808_label_en-US" xlink:label="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Group, Including Discontinued Operation, Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808" xlink:to="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_775BCB37CA31EC0324EDE9A83C165808" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_7909437DA2CC200C1283E9A83C165B7D_verboseLabel_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_7909437DA2CC200C1283E9A83C165B7D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income taxes payable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_7909437DA2CC200C1283E9A83C165B7D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CommitmentsAndContingencies_D0FB15E5D2EC3B641589E9A83C179A92_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_D0FB15E5D2EC3B641589E9A83C179A92" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments and contingencies</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_D0FB15E5D2EC3B641589E9A83C179A92" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies_D0FB15E5D2EC3B641589E9A83C179A92" xlink:to="lab_us-gaap_CommitmentsAndContingencies_D0FB15E5D2EC3B641589E9A83C179A92" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_802EF2163454B68A1AAAE9A83C18A2AE_verboseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_802EF2163454B68A1AAAE9A83C18A2AE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stockholders' equity:</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_802EF2163454B68A1AAAE9A83C18A2AE_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_802EF2163454B68A1AAAE9A83C18A2AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_802EF2163454B68A1AAAE9A83C18A2AE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PreferredStockValue_663607D8987FF3E2103DE9A83C189C4A_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockValue_663607D8987FF3E2103DE9A83C189C4A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Preferred stock, $.01 par value, 25,000,000 shares authorized, no shares issued or outstanding</link:label>
    <link:label id="lab_us-gaap_PreferredStockValue_663607D8987FF3E2103DE9A83C189C4A_label_en-US" xlink:label="lab_us-gaap_PreferredStockValue_663607D8987FF3E2103DE9A83C189C4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock, Value, Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_663607D8987FF3E2103DE9A83C189C4A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_DE0E22D088ADC41C6CAAE9A83BDD4B7F_label_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_DE0E22D088ADC41C6CAAE9A83BDD4B7F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for Doubtful Accounts</link:label>
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