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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7
votes
1answer
1k views

How to properly seal/cover an unused chimney?

We recently replaced an ancient chimney-vented boiler with a direct-vented one. This boiler was the only thing using our chimney. The chimney is brick and sits in the center of our 120-year-old house. ...
3
votes
1answer
2k views

How can I reduce whistling due to wind across a gas fireplace vent?

We have a gas fireplace venting through the roof of our attic bedroom; there's a cap on a chimney up there. Double-wall construction, such that it pulls combustion air in from outside. When the wind ...
6
votes
3answers
1k views

What's a good way to support a freestanding chimney?

I'm working on adding a woodstove to a yurt. The chimney will go out a sidewall and then head up. There is not a good way to brace the chimney to the yurt itself. Here are some options I've read ...
5
votes
1answer
560 views

How can I refinish an interior chimney pipe to make it appear rounded?

Right now my interior chimney pipe is hidden behind a wall and I want to remove that wall and expose the pipe, but the pipe itself is not so pretty. My fireplace is a wood fireplace with a double ...
5
votes
2answers
943 views

Is it possible to hang something on the wall surrounding my chimney?

My chimney runs up the center of the house from the basement. Where it passes through the kitchen, there is an obvious bulge in the wall where the wall basically wraps around the chimney. Based on the ...
1
vote
1answer
355 views

What should I pack behind a cast iron fireplace?

I have a cast iron open fireplace which is (loosely) attached to the chimney breast in my living room by the mantle piece. There is a small but significant gap behind it where the bricks have been ...
4
votes
3answers
5k views

Contractor suggests caulking cracks in chimney, is that the right solution?

The mortar in our 25-year-old chimney is starting to crack and now leaks into our home if it rains hard. I assume we're probably in need of repointing, but a contractor that has done roof work for us ...
1
vote
1answer
656 views

What type of mortar would I use to seal cracks in our chimney?

We've got a brick chimney that's ~25 years old and it's got a quite a few cracks in the mortar (some hairline, some as thick is a quarter). What's the best way to seal all those cracks? I assume ...
0
votes
1answer
2k views

Why is getting a chimney sleeved such a hassle … and expensive [duplicate]

Possible Duplicate: Installing a Chimney Liner a DIY project? This seems to be an ongoing theme, and quite annoying I might add. When I first went looking for this to be done, I found some ...
5
votes
3answers
7k views

Is installing a chimney liner a DIY project?

My chimney (25ft approximately, one story house) was recently inspected and the guy recommended a chimney liner for the furnace due to the grouting having been eaten away. He quoted $2000 for the ...
3
votes
2answers
1k views

Tips and advice for installing a chimney cap?

I have an older wood-burning fireplace that is missing a chimney cap. I'd like to install one prior to rain season here in California but would still like the ability to use the fireplace now and ...