Ceramic log device retrofittted in masonry fireplace

1980 home, masonry chimney.


The info plate appeared to say it needs a permanently open opening.
Am I missing something? Is this prohibited?

The damper needs to be partially locked open or removed, is all.

Do you have a picture of the damper opening?

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Thanks Larry!

I do, just not on this phone I’m replying on currently.

It’s a long rectangle sort of damper, probably approximately 7.5” x 24”?

Im thinking I’ll recommend assessment by a fireplace professional, and inform them that a damper clamp may provide needed opening?

No reason to recommend assessment by others if the damper opening is modified sufficiently for safety and that is your only concern.

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From the looks of the damage in that fireplace, ABSOLUTELY! In fact, I would STRONGLY recommend a LEVEL II Inspection PRIOR TO USE!! In fact, these are required in some areas by law!

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I agree. I do this on most solid fuel and modified FP’s like the one above.

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Same here, I recommend Level II inspection on all wood burning appliances, even if the fuel is not currently wood.

I also always look to verify that the damper is clamped open and cannot be closed.

# Midwest Hearth Fireplace Damper Clamp | Flue Stop Clamp for Gas Logs

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