<SEC-DOCUMENT>0001127602-18-017646.txt : 20180516
<SEC-HEADER>0001127602-18-017646.hdr.sgml : 20180516
<ACCEPTANCE-DATETIME>20180516151315
ACCESSION NUMBER:		0001127602-18-017646
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180514
FILED AS OF DATE:		20180516
DATE AS OF CHANGE:		20180516

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bedard Gary S
		CENTRAL INDEX KEY:			0001719836

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15149
		FILM NUMBER:		18839820

	MAIL ADDRESS:	
		STREET 1:		2140 LAKE PARK BLVD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LENNOX INTERNATIONAL INC
		CENTRAL INDEX KEY:			0001069202
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585]
		IRS NUMBER:				420991521
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2140 LAKE PARK BLVD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080
		BUSINESS PHONE:		972-497-5000

	MAIL ADDRESS:	
		STREET 1:		2140 LAKE PARK BLVD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75080
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-05-14</periodOfReport>

    <issuer>
        <issuerCik>0001069202</issuerCik>
        <issuerName>LENNOX INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>LII</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001719836</rptOwnerCik>
            <rptOwnerName>Bedard Gary S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2140 LAKE PARK BLVD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RICHARDSON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75080</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>EVP, President and COO, WWR</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $0.01 Per Share</value>
            </securityTitle>
            <transactionDate>
                <value>2018-05-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>490</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>205.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20441</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This sale was effected pursuant to a Rule 10b5-1 trading plan.</footnote>
    </footnotes>

    <remarks>Attorney-in-fact pursuant to power of attorney dated December 7, 2017.</remarks>

    <ownerSignature>
        <signatureName>/s/ Sarah Braley, attorney-in-fact for Gary S Bedard</signatureName>
        <signatureDate>2018-05-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
