Replacement needed for gas fireplace thermal damper

Old 04-07-12, 05:40 AM
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Join Date: Apr 2012
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Replacement needed for gas fireplace thermal damper

I have an older (about 16 years old) Majco Building Specialties fireplace that has what I believe to be called a thermal damper. The damper is made of 2 semi-circles, each attached to a bimetallic coil. When the fireplace ignites, coil opens the damper with no problem. On shutdown though, as the unit cools and the damper closes, there is not enough tension in the springs and the damper "claps" for several minutes as it tries to close, yet enough heat is still present to partially open the damper.

I would really like to get this replaced, but it appears thermal dampers like this are no longer used. Is there any substitute that can be used, or am I out of luck? Thank-you.
Old 04-21-12, 11:52 PM
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Join Date: Oct 2011
Location: USA
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I'd shop around for some replacement springs. They obviously have to be stronger than what's there now, and need to be heat-resistant as well. There are specialty spring places on the Internet that could help, but even a well-stocked local hardware store might have what you need.

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