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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0
votes
1answer
13 views

When installing rigid dryer vent and connecting pieces

When installing rigid dryer vent and connecting pieces together do I use foil tape or those circle things you put on outside with a screw to tighten? Also is it a good idea to use duct connectors ...
3
votes
1answer
342 views

Need guidance for venting a new rough-in for basement bathroom

I'm currently finishing my basement, and I wanted to rough-in plumbing fixtures for a future basement. I've already got the layout, but I just need to figure out the venting for the drawing for my ...
0
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1answer
14 views

Bathroom vent installation

What kind of contractor do I call to have a bathroom vent installed? I also need a vent put in above my stove. Thanks
0
votes
1answer
18 views

Replacing ceiling vent cover

I need to re[place the ceiling vent cover but the screw holes of the new cover Do Not line up. One screw goes into the existing hole but the other screw only will go into the drywall and then it hits ...
1
vote
0answers
20 views

How can I route an in wall dryer vent through double top plate?

I am looking to move the washer/dryer into the 1st floor walk in closet. Part of the process is putting in a dryer vent. I have seen some in wall vents for dyers and considering that as an option. ...
2
votes
1answer
181 views

How should I install a bathroom Exhaust Fan on 2nd Floor?

I would like to install a bathroom exhaust fan in my 2nd floor bathroom, due to moisture issues. There is no existing fan, only a light fixture. There are two exterior walls in this room and the attic ...
2
votes
2answers
282 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 ...
2
votes
1answer
280 views

How can I vent my roof 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 ...
1
vote
1answer
56 views

Can a dryer exhaust through PVC in a slab?

I have a single story home in California, with a concrete slab foundation and a laundry room located in the hallway. The dryer vent connection is just a PVC pipe running down into the slab, and then ...
2
votes
1answer
50 views

How can I repair a bathroom fan under garage that is leaking in the winter?

I have a rigid metal exhaust pipe coming out of the bathroom fan over my downstairs bathroom. It goes up at approximately a 30 degree angle for about twenty feet and stops just before it gets to the ...
1
vote
0answers
17 views

Can a horizontally-vented kitchen exhaust have a downward-facing outlet in a soffit?

Can I vent a kitchen exhaust fan horizontally to an exterior soffit, ending with a downward outlet/cap? (Or must the outlet be horizontal (through a wall) or upwards (through a roof)?
1
vote
1answer
41 views

Can dryer vent touch ABS pipe?

I am installing a dryer vent (using rigid aluminum vent). The vent will be running along the same path as a 1.5" ABS pipe (which is used as drain vent, so no water flows through it). Would it be a ...
10
votes
4answers
40k views

What is the purpose of a bathroom exhaust fan?

Okay I actually do understand the purpose of the bathroom fan; it gets the steam out of the bathroom after a super hot shower, right? Well turns out I NEVER turn it on. I suppose I don't shower in ...
5
votes
4answers
98 views

Why does my stove vent fan take time to turn on

The vent hood is quite old. For some reason when I flip the switch to turn it on it takes 10-30 seconds to actually turn on. I've checked it and there's no power flowing for those 10-30 seconds. ...
0
votes
0answers
4 views

Attic ventillation [duplicate]

Thank you in advance for your help. My attic is 1288 sq ft. I calculate needing 16 round vents @ 4" each. Correct? I have two existing gable vents @ 20" X 20 ". Enough exhaust to match the intake? ...
1
vote
1answer
125 views

How to get fresh air to flat without letting noise in

My flat is at 4th floor just next to very noisy street (cars/trams); above my flat there's only roof (no other floors or attic). I have problems with fresh air inside because I try to keep my windows ...
0
votes
2answers
68 views

Dryer isn't drying clothes. I've tried all of the common solutions (I think)

My wife and I just bought our first house. I think that we discovered that our dryer vent is going to require some regular maintenance to keep it clean and able to dry our clothes. When we moved in, ...
1
vote
4answers
90 views

Dryer Vent Exhaust Fan

My wife and I just bought our first house. I think that we discovered that our dryer vent is going to require some regular maitenence to keep it clean and able to dry our clothes. When we moved in, ...
1
vote
3answers
1k views

What is the best way to clean a dryer vent?

I posted this questions 6 months ago.. Why does it take my dryer 3 hours to dry a load of clothes? I checked the cycling thermostat and thermal fuse. They are operational. I have seen different ways ...
1
vote
5answers
4k views

How to fit 4" rigid aluminum duct vent in between walls when there is an angle brace?

I want to do what these people have done here: The problem is I have bracing going diagonally and it is not leaving enough space for the 4" aluminum duct vent. Can I saw the bracing off for the ...
1
vote
4answers
2k views

Do I need a vent fan in an interior laundry room?

I am renovating a few rooms including an existing laundry room. It currently has one exterior window and another openable window onto an existing mudroom (which also has exterior windows). After the ...
1
vote
1answer
34 views

Gas dryer vent install, how close to wall?

I am installing a gas dryer, I understand all the requirements, but cannot find anything that addresses this question; my install comes out the back of the dryer and goes vertical about 4 ft, then ...
15
votes
10answers
19k views

Do thermostat-controlled, auto-adjust HVAC vents exist?

The residential forced-air HVAC systems I have seen are controlled by a single thermostat in one room. One has to manually adjust the vents in order to adjust the temperature in other rooms. Is ...
2
votes
3answers
3k 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 ...
14
votes
6answers
2k views

Is it dangerous to run electrical cords through heating vents?

I'm living in an old apartment, and my roommate has fed electrical cords through a heating vent from the living room into the bathroom, up to a power bar on the side of the sink. I see this as a ...
1
vote
0answers
28 views

Why does the Hartell Reservoir style pump require no venting, while the Little Giant Drainosaur does?

Why does the Hartell Reservoir style pump require no venting, while the Little Giant Drainosaur does? See links below for more info on pumps Hartell Pump Little Giant I am having a hard time ...
0
votes
0answers
29 views

Motorized vent for fresh air

I'm looking to set up a more optimized ventilation system in our house. Today we blow out air in the bathroom and have 3 passive vents letting fresh air in, distributed throughout the house. During ...
0
votes
1answer
122 views

Vent pipe related odor

Odor happens when adjacent bathroom toilet is flushed and is only smelled in adjacent laundry room??? Was really bad at Thanksgiving when we had about 14 extra people in our house for several days. ...
1
vote
1answer
139 views

Bar sink drain/vent

I am in midst of finishing the roughed in full bath and want to put a bar sink on the wall behind the tub. I will add pictures later- once I am able to get some good shots.... The way it was roughed ...
2
votes
2answers
187 views

Are there optimal positions for A/C and heat register grills to be facing?

I noticed a while ago that some of my A/C and heat register grills are facing the walls and not the room (the insides of the curves on the grills face the walls) in some rooms but not in others. My ...
2
votes
1answer
3k views

How to properly vent attic in windy/snowy areas to avoid snow infiltration?

To ask the other part of question: How bad is it to have wet insulation? that didn't get asked... How do you deal with homes that are in high wind and snowy areas which are susceptible to snow ...
1
vote
1answer
64 views

What are my options on location of a bathroom fan vent in Wisconsin?

I just put in a new bathroom fan and notice the previous one was vented into the attic. I understand this can cause mold after awhile. I live in WI where we see a lot of snow. I was told the roof ...
1
vote
0answers
29 views

Trickle vent - surface and airflow

If a trickle vent is rated at "2000 mm2", does it mean that one needs to drill holes in the window frame that have a total surface of 2000 mm2? How many liter per second or m3 per hour would such a ...
1
vote
0answers
59 views

How to best connect this microwave to the exhaust vent?

I'm trying to connect my microwave to the existing exhaust vent. The problem is that the microwave is about 1 inch to the left of the actual vent. This is the part that I'm struggling with. I have ...
0
votes
0answers
87 views

Connecting dryer vent in new window

We just had some old windows replaced with glass block in the basement. The installers added a window with an attachment to vent the clothes dryer but, of course, it's different to the one in the old ...
7
votes
1answer
115 views

Decrease dust in an old house, forced air

My house was built in 1940. I have noticed the forced air pushes out a lot of dust. This is evident from lint collecting on the bathroom vanity below a vent. It only collects lint during Summer and ...
6
votes
6answers
8k views

Can I vent my dryer into the crawl space without creating mold and moisture problems?

We have a crawl space with a combination of sandy and clay soil in it. The crawl space is about 3' deep. To eliminate a long dryer vent run, I'd like to vent the dryer directly into the crawl space. ...
3
votes
1answer
476 views

Dryer vent passing through two wooden beams. Is it safe?

I have a dryer vent that exits the house wall through two wooden beams. The vent is built using two corner rigid pieces and one long rigid aluminum piece. The long rigid piece is the one that passes ...
2
votes
0answers
38 views

Replaced a Heat/Light/Vent with a vent only. There does not seem to be a hot wire:

The three gang box previously had a HLV combined switch plus a switch that operated a separate light. Stupidly, I removed and discarded the switches and units (light and HLV) without studying the ...
0
votes
0answers
47 views

How can I reduce the noise caused by a booster fan?

The previous owner of my house installed a booster/fan about 2 feet away from one of the bedroom registers. This causes excess noise in that bedroom. The fan is about 40 feet away from the main ...
5
votes
3answers
3k views

How do I prevent harmonic resonance hum in PVC vent of newly installed hot water heater?

I just had a new power vented water heater installed (HTProducts Phoenix Light Duty) in our crawlspace. The contractor that put it in used part of the existing 3" concentric vent from the furnace we ...
1
vote
0answers
61 views

Can a cheater vent be installed in a vanity drain that maybe running into a roof vented drain?

Can a "cheater vent" be installed in a vanity drain that MAY be running into a roof vented drain? All p-trap , tail piece is new and drain line has been cleaned with a drum auger netting no major ...
0
votes
0answers
103 views

Why Is My Dryer Vent Electrically Charged

I recently purchased a home built in the 1980s. When I went to hook up my 3-pronged dryer cord (with L), I noticed the outlet is the old 3-prong (all straight) typically used for ranges. I switched ...
1
vote
2answers
146 views

Should our kitchen sink vent through the roof?

Our kitchen sink vent pipe goes up through the ceiling but not through the roof, should it go through the roof?
6
votes
1answer
127 views

Does anyone have experience with small heat-recovery air exchangers?

I know there are units made which are supposed to be sized for use in a residential kitchen, as a more efficient replacement for the usual vent hood (bring air in to replace air blown out, but ...
1
vote
2answers
349 views

Is 150 CFM ventilation fan right choice for bathroom in my older condo?

My bathroom ventilation fan broke up and I am shopping for a new better one. I noticed the newer fans are higher CFM through-put and are quieter, I have narrowed down my choice to this one. My ...
1
vote
4answers
4k views

Are there efficient ways to provide combustion air to heating appliances?

In a previous question we established that there probably should be a vent between my utility room (which opens into the kitchen and living space in general) and the outdoors (in my case the attic, ...
3
votes
2answers
847 views

Timer needed on bathroom vent fan?

Does the International Building Code (IBC), or International Residential Code (IRC) require a timer on bathroom vent fans? (I realize all code is local, but just trying to get the standard rule.)
0
votes
0answers
74 views

How should I wire this 3 switch box in my bathroom?

I have a 3 switch box and the bottom switch that controls the heater was broken so I replaced it and I can't remember how to wire it, tried 10-15 combinations and it still doesn't work, not sure how. ...
0
votes
0answers
107 views

gas fireplace smells

I bought a house that was vacant for a year and a half. It has a gas fireplace. The plumber that fixed the heating unit supposedly looked at the fireplace too and lit the pilot for me. I lit the ...