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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981 views

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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2answers
196 views

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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0answers
26 views

Is it safe to seal the exterior of a stone chimney?

We have a 1938 stone chimney (not brick) that is severely deteriorated. We are going to repair the mortar immediately and put a cap on top, but we're unsure about weatherproofing the stone. We do want ...
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0answers
53 views

How to strengthen a giant pole made out of seven 2m long 40mm diameter plumbing waste pipes?

The problem: I have a plant growing out of my chimney. Last year I had a chimney sweep go up on the roof and remove the plant and fit a cowl/ cap onto the chimney costing over £500 including cost of ...
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0answers
34 views

Is this fireplace suitable for wood burning stove?

We are about to re-plaster the entire room. We previously had a back burner boiler fitted but has not been replaced with a combi boiler. The hole in the fireplace has since been covered. With the ...
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0answers
167 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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0answers
55 views

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 ...