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Questions tagged [vent]

For questions generally relating to the exhaust ventilation of air from inside the home, and/or methods to promote proper airflow thorough various spaces in a structure.

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46 views

Can I use foil duct for Kenmore 700 dryer?

I pulled my dryer, and am reinstalling it. It had a semi-rigid metal transition duct, which was all bent out of shape, and looked like it had some holes forming (see pic). I did homework, and read a ...
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2answers
39 views

How to remove an external dryer vent cover when it's covered by stucco?

I don't know who built this house but they did it stupidly. I need to replace my external dryer vent cover because one of the fins broke. However, it seems like whoever built the house, covered the ...
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1answer
151 views

Trying to understand the venting in my home

I'm trying to make assumptions on the purposes of the vents in my home and I understand that it may not be correct without opening up walls. It would be a great help for me in knowing how my home ...
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2answers
95 views

Are there any options for connecting into main stack for venting branch below waterline?

Are there any options for connecting into main stack for venting branch below waterline? Could I go up for a few feet with a with a wye join and then come back down? The reason for trying to come up ...
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3answers
181 views

Range hood vents into attic space

My house was built in 1976. I recently replaced the range hood and discovered that the piece of rectangular ducting that runs inside the cabinet is not connected to the outlet vent on the outside of ...
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1answer
59 views

A more thermally efficient house - can I block up vents in my brickwork?

I live in the UK in a typical '1930's semi' house. It is built with two layers of good old bricks and a cavity wall inbetween them. In my hallway, there is currently no carpet or hardwood flooring - ...
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2answers
2k views

No Attic vent, in Florida, new-ish house - needed?

We have a SW Florida (Cape Coral) house built in 2005. The house is block construction, high ceilings (10-14'), about 3100 sq ft, and concrete tile steep hip roof (by eye at least 12 in 12). The ...
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2answers
1k views

How can install rafter baffle venting without removing drywall?

I have a finished attic, that needs to be updated. The pitched sides of the roof are sheetrocked & insulated, the ceiling is a suspended ceiling (will be sheetrocked) and the low knee walls are ...
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1answer
162 views

What should I look for in a roof dryer vent?

I'm in the process of installing an upstairs laundry room, and I'm looking to vent the dryer to the roof. The route to an outside wall is almost 25 feet, with a few turns, whereas the route to the ...
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1answer
41 views

Drywall before or after vent installed?

I have a large (14x20) wood louver with a frame that is going over a return vent. Should this be installed first and then have drywall put around it, or should I install the drywall first, then cut ...
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2answers
10k views

Can I move the range hood but not the roof vent (angled “flue” pipe)?

I have a typical 30" stove installed in the center of a 20' wall with a standard overhead hood that looks a lot like this. I want to redesign my kitchen with new cabinets so the stove becomes corner ...
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2answers
83 views

Dryer vent through cinder block and then through yard - is this ok?

I've been researching how to vent my basement dryer, using galvanized steel ducts. There are lots of things on Google that show how to do this under a normal situation, but mine is unique, and I can't ...
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1answer
473 views

Ridge Vents vs Gable Vents Energy Savings as a Percentage or $ Figure

I am having a new roof installed and there is an additional item Ridge Vents that I can add to the home - I currently have Gable Vents - no sofits. I understand that the gables need to be blocked and ...
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1answer
130 views

Does this vent cap limit passive air flow?

I am looking at various vent covers for my house. I have a 3" Plumbing vent stack and a 4" Radon vent stack. The radon system is passive, which means I do rely on a chimney effect along with the ...
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2answers
2k views

Is there any reason to not tape this vent over?

I just want to make sure this wont hurt anything. Right before I bought this house, it got a new AC and furnace but they did not replace much of the duct work. This vent is right above the AC unit ...
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2answers
33 views

Question on drywall patch in the ceiling

I have a ceiling vent where the drywall is cut a bit larger than the actual vent. I was looking for some advice on the repair. The duct is mounted to a stud along the top (a piece of the stud is ...
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1answer
569 views

What type of chimney liner and vent pipe are required for a wood stove?

I am working to rehabilitate an old chimney for use by a wood stove. There will be approximately 18 ft from the wall chimney socket (this is probably not the correct name for it) to the chimney top ...
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1answer
42 views

venting bathroom fan through soffit

So here's my experience of venting through the soffit. The humid air from the bathroom is expelled downward and rises up again to the soffit and in very cold weather in Canada it freezes there, then ...
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1answer
40 views

Can you shorten class B water heater vent pipe?

New gas hot water heater is 5" taller than old (of course the same size would be too easy).Flex water and gas lines -no problem; but the class B ( double wall ) exhaust vent is ? Can it be cut? How? I ...
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3answers
56 views

Does using an existing attic exhaust pipe to also serve air flow from a range hood cause smells/micro particles of oil/soot/etc to get into attic?

Our kitchen renovation contractor decided to change plans on us and vent the range hood out via the same pipe as was pre-existing to passively control the temperature in our attic, instead of vent out ...
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2answers
5k views

Drywall surrounding vent no longer supports screws;

Screws that normally fix the vent in place can't do their job anymore. The drywall has crumbled to the point that the tapped hole for the screw lacks a boundary with the duct. (Picture attached.) ...
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2answers
53 views

Basement Bathroom Venting Help

Our basement has been roughed in for a bathroom. My layout has a three floor PVC pipes coming out of the ground. The left most pipe has a tipped over bucket cemented onto the floor. There is a middle ...
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2answers
83 views

Sewer gas smell in replumbed old house

We bought a 1920 house about a year and a half ago and occasionally we can smell a sewer gas odor and I’ve been trying to figure out what the cause is. Whenever we smell it, it’s coming from either ...
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1answer
704 views

Bathroom exhaust vent into crawlspace

It is acceptable to vent a bathroom exhaust fan into a crawlspace? The crawlspace in question is uninsulated, has a dirt floor, and varies in height between 5' and 7'. The vent would enter roughly in ...
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1answer
33 views

Stalling roof turbines to improve air flow?

My landlord claims that roof turbine ventilators move more air when they do not spin—e.g. by stalling it using a piece of wire tied through the vent and the brace. His reasoning, roughly, is that when ...
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0answers
18 views

Bathroom Vent Fan Leaks

I have red water leaking/dripping from the vent bathroom fan in the second floor bathrooms. This only happens after a good snowfall and during the snow melt as it warms. We get about 6 hours of ...
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2answers
66 views

Is there a dimmer light switch with secondary constant 120V output?

I have a vent fan and an overhead light in my bathroom. They are currently tied to one standard light switch. When that light switch is in the "on" position, the vent fan and light are both powered on....
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1answer
44 views

Flashing and/or sealing for vent through built-up roof (BUR)?

I'm reconfiguring plumbing and need to poke a new vent through the roof of my Chicago two-flat. It's a built-up roof of tar, felt, etc., with a slight grade. How to finish the roof portion so that ...
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1answer
68 views

Is my plumbing drain/vent setup ok?

I'm new at plumbing, working on installing a master bath in our house. Pictured is the room with the shower pan in place, a vanity drawn where that will go and you can see the toilet flange sitting in ...
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1answer
111 views

Do I need a wall thimble for thermal separation with a category III venting appliance?

I bought a tankless water heater that allows me to vent using category III. I've seen that wall thimbles are included in many category III termination kits, but am wondering if they are really ...
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3answers
8k views

Can I clean my under-the-floor dryer vent?

Our laundry nook is smack in the middle of our house. The dryer vent goes into an interior wall, turns 90° downward, soon turns 90° back the way it came, and goes straight for four or five meters ...
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0answers
30 views

Best way to connect to short dryer duct inside wall

What is the best way to connect my dryer securely to this outgoing dryer vent? Should I find a small connector piece, place the crimped end inside the vent, and secure the inside of the joint with ...
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8answers
7k views

How do I get an exterior vent to stop frosting over in a cold Canadian winter?

We have a high-efficiency gas-fired hot water heater (in our a basement) that is vented to the outside of our house. When the weather gets below -30°C the vent has a tendency to frost-over. When ...
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1answer
37 views

Wall grille that fits one step stair

Between my dining room and living room upstair area, there is one step down and there is a wall grille that is 5.5" tall. What drives me nut is there is no 14x5.5 grille anywhere. There is either ...
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1answer
29 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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1answer
40 views

Can I run a 8 inch vent for a downdraft range fan in the same trench as my sewer line?

Can I run my 8 inch duct for my down draft range fan in the same trench as my sewer line?
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0answers
31 views

Nice way to cover vent and drain after removing washer dryer

We have moved out washer and dryer upstair. But the basement bathroom still has all the vent and drain holes. What is the best way to cover or make things look nice (beside drywall over)? UPDATE 1 ...
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1answer
27 views

Intake blockage on hot water heater - shuts off

I have a similar problem to a question I’ve seen posted here before. I have a high efficiency water heater...and the sensor keeps shutting it off as the intake pipe outside gets full of frost. I’...
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3answers
393 views

Can I replace a microwave with a range hood exhaust vent without doing carpentry?

My fairly small kitchen has a standard (30") four-burner slide-in gas range, and above it a microwave with a built-in vent. All over 10 years old. The vent exhausts to the exterior via a duct that ...
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1answer
33 views

Direct vent boiler exhaust exiting close to brick chimney

The exhaust vent for our Burnham Spirit direct vent boiler currently exits very near the junction box where I recently installed an IR-triggered motion-sensitive floodlight. The hot air is causing ...
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4answers
131 views

Letting fresh air through a window without letting noise in

I live in an apartment and it's pretty noisy outside, so I usually keep my windows closed. It does get pretty stuffy inside though, so I'm wondering if there's a way to get air through the window ...
6
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3answers
17k views

Do I need a rain\snow cover on this furnace vent?

Just bought a house that had a new furnace installed this summer. Vent number 1 in the image is for the furnace (2 is the water heater and 3 is sump). As you can see in the image, 2 and 3 both would ...
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1answer
41 views

Making your own B Vent Attic Insulation Shield?

I'm installing a 45k BTU gas heater in my garage. It will be a vertical vent installation with 3" b vent pipe and I'm going to insulation the attic with about 18" of cellulose insulation. No one ...
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0answers
23 views

What is a compliant box for a range hood in terms of a correction request by an inspector?

I’m remodeling a kitchen and the electrician wants to charge extra to fix wiring issues with the range hood and junction box. However, the inspector told me that one of the corrections the electrician ...
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2answers
53 views

Covering intake register for a whole house fan in winter

The register for the whole house fan blows cold air in winter from the attic. I would like to cover it up to avoid this. I have seen HomeDepot/Lowes sell magnetic covers. However reviews indicate ...
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0answers
44 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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3answers
12k views

How should I route my dryer exhaust pipe?

My existing dryer vent run enters the crawlspace behind the dryer and exits through a vent that is part of one of the normal crawlspace vents. Since the house sits on a slight slope, the crawlspace on ...
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0answers
27 views

Range Hood vent and rules regarding distance from windows/doors

I want to exhaust my range hood directly through the wall. I have a brick veneer house. There are 2 windows and a door close by. What rules need to be followed?
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1answer
29 views

How to remove a bathroom fan vent grille for cleaning

I have a bathroom fan vent that doesn't completely come off, it stays attached but pops down (see attached images). Should I clean these things using a ladder, or should I remove them and wash them ...
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1answer
30 views

gurgling sound in the power vent pipe

My Furnace is a high eff furnace with a power vent. There is a gurgling sound in the power vent pipe, when it is running. I noticed that the vent slopes up then has a 90 elbow then slopes down ...