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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0answers
125 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
398 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 ...
1
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0answers
67 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
122 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 ...
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2answers
314 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, ...
2
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4answers
187 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, ...
2
votes
1answer
120 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 ...
1
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0answers
64 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 ...
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4answers
135 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. There'...
1
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1answer
414 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 ...
3
votes
2answers
2k 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 ...
4
votes
1answer
1k 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 ...
1
vote
1answer
149 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
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0answers
34 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
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0answers
127 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 ...
1
vote
1answer
327 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
0answers
232 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
267 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 ...
3
votes
1answer
955 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
49 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 ...
1
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0answers
79 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 ...
2
votes
1answer
507 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 ...
0
votes
0answers
74 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 ...
0
votes
0answers
311 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 ...
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2answers
350 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?
3
votes
2answers
2k 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.)
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vote
4answers
9k 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 ...
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vote
2answers
1k 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 ...
0
votes
0answers
132 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. ...
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0answers
302 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 ...
3
votes
1answer
90 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 ...
2
votes
1answer
191 views

What type of furnace vent pipe is this?

I need to extend my furnace vent pipe up 2 foot above the ridge of my roof to comply with IBC. So I need to couple this pipe somehow and extend it up. Any idea what type of pipe this is and how I ...
2
votes
1answer
117 views

Is it code compliant for a new construction bathroom vent (no shower) to go down and then over?

I have a challenge on my second floor where a curved steel roof insulated with spray foam makes the best option for a half (toilet/sink) bathroom fan's vent to route down and laterally out the side of ...
0
votes
1answer
355 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. ...
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0answers
247 views

how to insulate attic bathroom vent to prevent condensation

i bought a house in june and the bathroom fan start dripping water a few weeks ago (november). I looked at the inspection report and the picture shows that the vent duct through the roof isn't ...
2
votes
1answer
276 views

Why do small vents at top of garbage disposal blow out water when sink drains?

I just finished replacing the mounting gasket of my In-Sink-Erator Badger 5 as I thought that was the cause of occasional water on the floor of the kitchen cabinet. Admittedly I never diagnosed the ...
6
votes
1answer
145 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 ...
0
votes
1answer
475 views

Fast trick to figure out to where bathroom fan vents out

Recently had a guy come out to clean the clothes dryer and clothes dryer vent. Asked him to clean out the bathroom fan vent as well. He looked up the attic, on the roof, and along the siding, and ...
2
votes
2answers
590 views

Can a lower cabinet be used over a floor vent?

I didn't see this question asked after my search but I have a wall in the kitchen that has nothing against it and we are wanting to add some cabinets but towards the right of this wall, about 5' from ...
1
vote
0answers
38 views

Can I extend attic vents so they don't get blocked by snow?

I have 2 square low profile attic vents on the detached garage but I'm pretty sure they are blocked with snow during the winter. If I should alter them, are there extensions available to raise these ...
2
votes
2answers
712 views

Where should the main stack vent go?

Where does my primary stack vent go? Does it have to be at the end of the run? I have a pretty simple plumbing system. From the highest point to where the drain enters the house (lowest) I have Tub, ...
2
votes
1answer
169 views

Is there a reason for an exterior vent not connected to anything?

I have an exterior vent on the side of my house not connected to any piping within. You can look inside and see wood/concrete/insulation into the cavity between the basement ceiling and main floor. I'...
0
votes
2answers
78 views

What kind of a bathroom vent is this? How do I open it?

http://imgur.com/bIHdOvX See picture. Bathroom vent doesn't appear to be sucking, so I want to open it and see if it's something to do with the fan. If the fan looks fine I think I'll have to hire a ...
1
vote
2answers
463 views

Is a 6 in. hole in a band joist okay?

I'm installing a Zephyr AK6500 range hood. The kitchen is on the first floor a 2 story home, which was built in 1967. I've run 6 in. round ductwork in a joist bay in the kitchen ceiling to the ...
1
vote
1answer
247 views

My upstairs bathroom fans don't vent properly, how should I handle this?

I just noticed this weekend that neither of my upstairs bathrooms exhaust fans vent properly. I hear the sound of the fan, but as google has told me, when I put toilet paper on the fan it doesn't ...
0
votes
2answers
110 views

Extremely long dryer vent line, non efficient dryer

my house is older, and my Dryer vent line runs the length of my house, which is approximately 30 feet. I am constantly sucking water out of my vent line. My new dryer still takes forever to dry ...
0
votes
1answer
104 views

Should there be an air outlet in an attic with a whole house fan?

There has been a whole house fan between the second floor and attic of my house for some time. We usually have it on with the downstairs windows open. I just had a thought: Should there be an open ...
1
vote
1answer
198 views

Are molds dangerous to health if they are not in my own apartment?

I need a help to decide if I will move out from this building because of mold and health risks. Is it dangerous to live in a buliding in which the hallway is full of mold? I've been reading about ...
1
vote
1answer
176 views

Can I use duct tape instead of a draft hood?

I have a small opening between my vent and water heater. Instead of buying a draft hood, is there any harm in using duct tape?
4
votes
1answer
5k views

How do I install a 1st floor bathroom fan?

My bathroom is on the first floor with a finished bedroom directly above and an unfinished basement directly below. It would appear to be easier to install a wall or floor fan and direct exhaust down ...