For questions specifically relating to structures that ventilate combustion byproducts of fuel burned in an interior space, such as a fireplace, stove, or furnace.

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Gap between 6“ dia wall thimble & 6” hvac pipe

I bought a 6" dia aluminum wall thimble to vent my 6" dia hvac steel exhaust pipe through to the outside. However, the diameter of the 6" thimble is actually 6 3/4". How do I effectively insulate the ...
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2answers
76 views

What should I do with my leaking chimney?

We have a brick chimney on the side of our 110 year old, 2 story house. We aren't going to use the fireplace - we have a ventless insert we are going to use. The chimney leaks terribly. We are ...
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1answer
459 views

Do I have studs on my plaster and lath wall around/above fireplace?

my home was built in 1892. The fireplace was a coal burner that has since been replaced by a propane fireplace insert. I want to mount a TV above the fireplace but am uncertain as to what is behind ...
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How can I add a fireplace to an existing non-fireplace chimney?

Our 83 year old house has a brick chimney covered up with drywall. We have no idea where the original flue was, but it must have vented a wood stove because there is no structure for a fireplace. We ...
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0answers
27 views

What are my options for my chimney? (Ventless fireplace, insulation)

When we moved into our house it had an original chimney (now about 40 years old) but the original owners had converted the once-wood-burning brick fireplace into a ventless gas insert. I immediately ...
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How do I fix a chimney that does not conform to the insurance regulations?

The previous owners installed a fireplace in the house. A wood burning stove. It doesn't seem old or damaged. The stove itself is fine now that we moved it forward an inch and a half. Back to my ...