Gemini Parts

We carry the full line of OEM replacement parts currently available for the Astria Gemini Series gas fireplaces.

Not all parts are listed on our website, so if you can not find what 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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  • 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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  • 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
  • OEM SIT Gas Valve - LP (0820651) OEM SIT Gas Valve - LP (0820651)

    OEM SIT Gas Valve - LP (0820651)

    Replacement propane (LP) SIT gas valve for HHT, IHP, Kingsman, Kozy, and Napoleon gas stoves, fireplaces, and inserts. Specs:Pilot outlet - 7/16 24 UNSThermocouple connection -11/32 ASA Manual Hi-Low Regulator 25% - LPG Hi=10 (Pi=12 Q=30,000...
    $179.36
  • Superior Glass Door Assembly 35" (F1841) Superior Glass Door Assembly 35" (F1841)
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    Superior Glass Door Assembly 35" (F1841)

    Replacement glass door assembly for Superior and Astria Gas Fireplaces. Measures 32.375" H x 22.249" W. Fits the following models: Superior Gas Fireplaces: DRC2035REN DRT2035 DRT3035 Astria Gas...
    $197.00
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  • IHP Piezo Igniter Wire (56L21)
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    IHP Piezo Igniter Wire (56L21)

    Replacement piezo igniter wire for Astria, Lennox, Superior and Whitfield gas fireplaces. Fits the following models: NOTE: This is the wire only and does not include the Piezo igniter. The Piezo igniter is part # 10K86, click HERE Astira Gas...
    $28.00
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  • Astria & Superior Vent Restrictor Base (H8987) Astria & Superior Vent Restrictor Base (H8987)
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    Astria & Superior Vent Restrictor Base (H8987)

    Replacement vent restrictor base for Astria and Superior gas fireplaces. Fits the following models: Astria Gas Fireplaces: Altair 40DMN Altair 40DMP Altair 40DEN Altair 45DMN Altair 45DMP Altair 45DEN Altair 45DMN-B Altair 45DMP-B Altair...
    $46.00
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Why Buy Parts from Mountain View Hearth Products?

We’re the world’s largest source for stove, fireplace, grill, and appliance repair parts. Whether you’re fixing a decades-old wood stove or replacing a worn-out control board on a high-end grill, we make it easy to get the right part — fast.

We stock both original manufacturer parts and high-quality alternatives — so you get the same great fit and performance, often with more affordable options to choose from.

Most sellers only carry the basics like blowers and igniters. We go deeper — with brackets, trim, switches, control panels, gaskets, screws, and more. If your unit has it, chances are, we carry it.