Questions tagged [chimney]

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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92 views

Why are some bricks crooked in my attic wall?

I live in a victorian terraced house, and one of the chimney breasts has been removed at some point in the distant past. However they didn't remove the part in the roof, which was poorly supported. I'...
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1answer
58 views

Gas Combustion Air Duct Re-Route Considerations

What are the safety/legal considerations for safely re-routing gas combustion ducts? I have a two-story house with two gas combustion air ducts. The left duct serves a fireplace that is not in use and ...
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71 views

Chimney with adjacent brick shafts into attic

I have dual fireplaces back-to-back on either side of a wall. They are separate fireplaces; there is clearly a solid barrier at the back of each fireplace. They and the whole chimney are brick. We ...
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1answer
134 views

Can I use an old chimney as a electrical chase

TLDR: Are there any code/cost reasons we couldn't run BX/romex to our attic through an old disconnected chimney? Long Question: I will be closing on a house shortly and there is a hole in the attic ...
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41 views

Asbestos in chimney bricks and mortar?

I have recently purchased a house built in 1931. It has a chimney that would be a great place for a tv mount. I want to mount on the opposite side of the fireplace - not above it. I read recently that ...
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1answer
80 views

What's going on with this chimney?

Tore the walls off and found the chimney looking like this: It's seen a lot of leaking as you can see from the streaks. The exterior portion was rebuilt last year. That horizontal crack running ...
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1answer
26 views

How to ventilate a chimney taken down to attic (roof line) level?

I had a leak in my chimney flashing, so the roofer recommended taking the chimney down to attic level. He repaired the roof where the chimney was (board, felt and roof tiles). All was good, but a few ...
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1answer
54 views

What happens if range hood is smaller than cooktop?

If the range hood is 70% size of cooktop, shouldn't the smoke from sides of cooktop still get sucked towards middle hence getting sucked inside? So why people recommend range hood bigger than cooktop?
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35 views

is it creosote?

Two years ago I had my roof re-shingled and the chimney bricks repointed. This year I notice black liquid leaking out from the bottom of the chimney. What's weird is the black liquid is also leaking ...
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1answer
30 views

How to maintain an old brick wall

we have a small section of exposed brick from an old chimney in the kitchen. The chimney is now used as an exhaust for the furnaces in the basement (and maybe for the kitchen exhaust in a different ...
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42 views

Unused chimney sweats when it rains

I have a chimney in my dining room that leaks or sweats. The chimney ends here because I can't find it in the basement. I am assuming that it was sealed at this location. The roof is new, and I also ...
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2answers
122 views

How does a water heater flue work?

Two years ago I had my roof re-shingled and the chimney bricks re-pointed. There was heavy snow this year. I was in the basement when I noticed black liquid on the floor in the utility room. I know my ...
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1answer
34 views

How tight a fit for a chimney liner?

We are evaluating what size flexible chimney liner to use for a new fireplace (masonry heater). The liner will pass through an existing concrete flue. The flue is constructed out of 16" square ...
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2answers
86 views

chimney leak black liquid

2 years ago I had my roof re shingled and chimney re grouted. This year I noticed a black liquid leaking into my basement where my water heater is located. The water heater I know is vented out the ...
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1answer
60 views

Placement of a 5" hole in foundation

I have some concerns over where to place a 5" hole for a pellet stove chimney. The stove is in our basement, and I'd like to have the chimney exit through the exposed part of the foundation. I have ...
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85 views

Closing a fireplace to the inside but opening it to the outside

We are buying a house that has a fireplace in the den. I want to turn the den into the kitchen. It’s the perfect space for it in the house. The laundry room is on the other side of the wall, so we ...
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2answers
54 views

How should I arrange artificial logs, and should they become sooty?

There is a chimney powered by natural gas: I'm using fake woodchops which are made of some sort of cooked clay. I have two problems: I don't know what is the proper way to arrange fake woodchops on ...
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19 views

Air sucked in between Chimney pipe - double-walled

I just installed a new fireplace and its roaring away now. I noticed that there is a strong air pull outside the stove going up the chimney near where it connect to the fireplace adapter. I'm not sure ...
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1answer
117 views

How to fix chimney hole in roof?

I've starting insulating the roof and that got me looking at the "old" hole where a (useless) chimney used to be. That chimney got removed for a solar panel setup. As I'm insulating, this needs to be ...
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1answer
71 views

Install a hardened glass in front of chimney

There is a chimney like this: I have ordered a hardened glass with four holes to be installed in front of chimney with dimensions like this: There is a 2 cm empty space below glass to allow fresh ...
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1answer
82 views

Chimney still leaking despite reflashing and coating

My chimney was leaking and the contractor pulled apart the roof around it and reput it with proper sealing and coating. Then he also coated the entire chimney with Geocel siliconized seal which is ...
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2answers
383 views

Do these materials typically contain asbestos?

Update I tested samples at a local asbestos certified lab and all came back 100% clear of asbestos. Thank you all for your advice. I’m new here and a new home owner. Just purchased a condo in a two ...
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50 views

Fireplace flue that can't be cleaned?

A licensed chimneysweep recently inspected the sole flue in our ~100 year old house. He reported that "buildup is not too bad, but the flue should be cleaned." He also reported that the flue could NOT ...
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54 views

Gap between sleeve and chimney structure

Currently, my chimney is brick and has a 8" type B metal duct pipe coming out of it as a sleeve, which exhausts home heat and waterheater appliances. The chimney was dormant for many years before I ...
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1answer
66 views

I have 5 natural gas appliances in my basement, can I replace just one with a power vented exhaust?

I live in a 3-family house. I have 3 chimneys and want to eventually remove one of them. One of the furnaces in the basement is gravity venting through the chimney to be removed. Now I need to replace ...
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86 views

intertherm nordyne furnace pilot light keep blowing off

I have a thermordyne standard gas valve furnace model number M1GB 090A AW. I had this problem for almost 4 years, the pilot light will get blown out after one or two runs, and I have to relight it. ...
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2answers
37 views

Help me find a replacement vent

Have a wood burning fireplace and the chimney has an air intake vent. The vent has seen better days but not sure what to ask for at the local stores. See photo [ update ] After getting up in the ...
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2answers
163 views

How can I tell if this is a gas or wood burning fireplace

From what I've been able to determine what's pictured is a gas log lighter for wood burning fireplaces. The prior owner did some questionable stuff so I don't know if it was originally gas and he "...
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1answer
201 views

Fixing a stuck Fireplace Damper

I recently bought a house with a gas fireplace. The house was built in 1997 in Texas. The fireplace damper is stuck open and I can't figure out how to fix it - I had a look and it doesn't appear to be ...
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1answer
65 views

Is a 44" chimney too short to create a sufficient draft? [closed]

I put a wood-burning stove in a motorhome but realized that the chimney might not have enough height for an adequate draft. I've got a single double wall stove pipe going straight through the roof ...
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1answer
95 views

Small patch in wall sheathing behind masonry chimney

I noticed a small hole, about 14” x 14” in our attic on the gable side. I wonder if it used to be a gable vent. Home was built in 66’ What can i do to patch this up? It looks like this sheathing ...
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2answers
51 views

Water around furnace: culprit?

Problem: After heavy rain, water pools around our basement furnace. After climbing onto the roof, I found a mysterious (plumbing?) vent. This post seemed relevant, but 0.5 gallons comes in after a ...
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3answers
89 views

1920s stove pipe walled off behind kitchen

I have a giant metal pipe filled with concrete or something, it doesn't go anywhere, it's just taking up space in my closet. I assume there used to be a big wood burning stove in the kitchen, and ...
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1answer
130 views

Smell from recently capped chimney

We had our chimney capped a couple of months ago (the next-door semi were having theirs done, so we said "yes" to their contractor doing ours at the same time). The contractor has removed the chimney ...
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1answer
32 views

Chimney flue repair before installing liner for wood burning insert

Planning on installing a wood burning insert in exsisting fireplace, the top of the flue at the chimney is spalling and was wondering if/options of repairing? the wood burning insert will use a ...
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1answer
61 views

How to demo a partially structural chimney?

Just bought a new home and would like to remove its chimney. It was originally built on the outside of the home and they built a carport up around it. It looks like it may have sprung a leak, so the ...
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1answer
312 views

Crumbling bricks behind fireplace

I had the fireplace removed in my house but the back wall bricks are in bad condition. The surface is crumbly around the area behind the opening, but seem to be ok higher up. Although the quick job ...
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34 views

Removal of 2 story chimney with deteriorated bricks

The bricks of the chimney are deteriorated beyond repair. it is located on the outside of the house and is a 2 story structure. The fireplace has been converted to gas logs and the chimney is not ...
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39 views

Mortar recommendation for repointing this older stone chimney

Which type of mortar or product would you think most appropriate for doing some repointing on this chimney? I've been reading about using mortar that is too hard for the stones. I'm worried I will ...
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110 views

Fixing Chimney leak and ceiling damage

I got a quote from contractor to fix chimney leaking water during rain to ceiling. There is drywall damage to ceiling too as result. What he is recommending is ripping off the roof 2 feet around the ...
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0answers
50 views

Chimney work - blocking a fireplace temporarily

We live in a house which is a good 100 or so years old and the chimney has been causing us problems with leaking into our loft room for some time now. A local builder has taken on the job of re-...
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93 views

Remove cast iron wood stove

New homeowner here and we would like to remove a cast iron wood stove and the brick structure with minimal damage to the hardwood floor below (see picture below). Two options: 1) Hire someone. We ...
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175 views

Ventilating closed-off chimney

I'm installing a flueless gas fire to an old chimney breast in a ground-floor living room and the fireplace in that chimney is being completely sealed off as a result. I'll be capping the chimney ...
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1answer
60 views

Repair Leaking Roof/Chimney In Winter

I live in an 100 year old house in Michigan. I have suspicions that the flashing around my chimney is leaking as the plaster in the ceiling directly below the chimney & roof point is getting soft ...
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1answer
48 views

Stove Pipe Support

I've got a wood stove i'm looking to replace, and on that journey I will need to remove the current stove for some time to re-tile the hearth. I have 18' ceilings and several sections of double wall ...
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1answer
190 views

Leak from base of flue

During a heavy rain storm the chimney leaked from the base of the flue. In the picture you can see the drop as it fell. The crown and the chimney was rebuilt to just above the roof line 3 weeks ago. ...
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1answer
70 views

Extend sidewall hot water tank vent outside?

I have a power vented hot water tank just on the other side of the wall (and in the basement) from the exterior pipe you see in the picture. The problem is that the steam vents onto my wife's flower ...
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27 views

Additional vent for Heating Boilers

I have a very old house and I am renovating my basement and i recently bought a new 140k BTU boiler for heating. I have a separate boiler for hot water. Both boilers are being vented through a Chimney ...
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2answers
45 views

What's the best way to leave an air flow shaft in wood chips after removing a PVC pipe?

I'm going to be composting a lot of wood chips this winter, and only have one large PVC pipe. How can I remove the PVC pipe from the wood chips while leaving the air shaft in place?
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1answer
39 views

Wiring between chimeny and brick facade

Mounting a tv on a brick wood fireplace. Been debating a few options regarding wiring. The room has a brick facade (hearth, mantel, and up to the ceiling). Removing a brick from that, I noticed ...