Lennox Gas Parts

In 2012 Lennox Hearth Products merged with FMI and formed a new company called Innovative Hearth Products or IHP. Going forward the Lennox brand name will be phased out and replaced with IHP.

We carry the full line of OEM replacement parts currently available for Lennox gas stoves and fireplaces. If you cannot find the part you are looking for please call, e-mail or fill out our Parts Request Form and we will be happy to assist you.

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  • Astria & Lennox Door Assembly (H8122) Astria & Lennox Door Assembly (H8122)
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    Astria & Lennox Door Assembly (H8122)

     Replacement door assembly for Astria, Lennox and Superior gas fireplaces. Fits the following models: Astria Gas Fireplaces: Altair 40DMN Altair 40DMP Altair 40DEN Altair 40DMN-B Altair 40DMP-B Altair 40DEN-B Altair 40DEP-B AltairDLX...
    $316.00
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  • Superior 240F High Limit Switch (75L23) Superior 240F High Limit Switch (75L23)
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    Superior 240F High Limit Switch (75L23)

    Replacement 240F high limit switch for Superior gas fireplaces. Fits the following models:Superior Gas Stoves: B-40RMN B-40RMP B-40REN B-40REP Superior part # 75L23OEM IHP part May fit other models, please check your owner's manual for part...
    $27.00
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  • IHP SIT Thermocouple (74L57)
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    IHP SIT Thermocouple (74L57)

    Replacement SIT thermocouple for Astria, Lennox and Superior gas fireplaces. Fits the following models: Astria Gas Fireplaces: Altair 40DMN Altair 40DMP Altair 45DMN Altair 45DMP Altair 45DMN-B Altair 45DMP-B Altair 40DMN-B Altair...
    $44.00
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  • Superior BBV-42RMN Gas Train Assembly - NG (H3231) Superior BBV-42RMN Gas Train Assembly - NG (H3231)
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    Superior BBV-42RMN Gas Train Assembly - NG (H3231)

    Replacement SIT natural gas (NG) gas train assembly for Lennox gas stoves, fireplaces and inserts. Includes the gas valve (H6244), pilot assembly (62L12), valve plate and gas supply line. This assembly is to convert a Honeywell valve system to a SIT...
    $426.00
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  • Superior SIT Gas Train Assembly - NG (H3223) Superior SIT Gas Train Assembly - NG (H3223)
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    Superior SIT Gas Train Assembly - NG (H3223)

    Natural gas (NG) SIT gas train assembly for Superior gas fireplaces. Fits the following models: NOTES: This kit will convert the fireplace from a Honeywell valve to an SIT valve setup. This will not convert the fireplace from propane (LP) to natural...
    $511.00
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  • IHP SIT Gas Valve - LP (88J53) IHP SIT Gas Valve - LP (88J53)

    IHP SIT Gas Valve - LP (88J53)

    Replacement propane (LP) SIT gas valve for Lennox gas stoves, fireplaces and inserts. Fits the following Lennox / IHP Gas Fireplace Models: NOTE: This is NOT a direct replacement for a Honeywell valve. If you need to replace a Honeywell valve you...
    $274.00
  • IHP SIT Millivolt Valve - NG (H1657) IHP SIT Millivolt Valve - NG (H1657)

    IHP SIT Millivolt Valve - NG (H1657)

    Replacement natural gas (NG) SIT millivolt gas valve for Earth Stove, IronStrike, Lennox and Whitfield gas stoves and fireplaces. Fits the following models: NOTE: This valve has the short 1.5 inch knobs. If your valve takes longer knobs you will need...
    $249.00

Why Choose Us for Your Stove Parts?

We stock both OEM and aftermarket parts to give you the best of both worlds — quality where it matters and savings where it counts.

Most competitors only carry popular aftermarket parts like blowers and igniters. We go beyond that — offering full system support, including air tubes, baffle panels, trim pieces, fasteners, and other hard-to-find components. Whether you're repairing a minor issue or rebuilding your stove from the ground up, we've got every part — not just the easy ones.