<SEC-DOCUMENT>0001127602-23-029453.txt : 20231212
<SEC-HEADER>0001127602-23-029453.hdr.sgml : 20231212
<ACCEPTANCE-DATETIME>20231212172011
ACCESSION NUMBER:		0001127602-23-029453
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20231208
FILED AS OF DATE:		20231212
DATE AS OF CHANGE:		20231212

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:		231482106

	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
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            <transactionDate>
                <value>2023-12-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F17"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>428.82</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20225</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $0.01 Per Share</value>
            </securityTitle>
            <transactionDate>
                <value>2023-12-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F18"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>428.97</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20222</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $0.01 Per Share</value>
            </securityTitle>
            <transactionDate>
                <value>2023-12-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F19"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>50</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>429.13</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20172</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $0.01 Per Share</value>
            </securityTitle>
            <transactionDate>
                <value>2023-12-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F20"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>23</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>429.16</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20149</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $0.01 Per Share</value>
            </securityTitle>
            <transactionDate>
                <value>2023-12-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F21"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>429.32</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20148</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F2">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F3">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F4">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F5">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F6">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F7">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F8">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F9">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F10">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F11">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F12">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F13">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F14">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F15">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F16">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F17">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F18">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F19">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F20">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
        <footnote id="F21">This transaction was effected pursuant to a Rule 10b5-1 plan adopted on May 12, 2023.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Monica Brown, attorney-in-fact for Gary S. Bedard</signatureName>
        <signatureDate>2023-12-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
