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3answers
40 views

Can I unplug attic fan over garage

I recently moved into a new house and during the inspection, the inspector noted that there was a fan in the attic space above the garage. He also mentioned that I could probably just unplug it ...
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1answer
109 views

Why does my boiler vent steam?

My understanding of a boiler system is that it is closed, meaning the water stays in the pipes and constantly recirculates. However, there is a vent (3" PVC pipe) that is connected to it that ...
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1answer
87 views

Clickey clackey bathroom exhaust louver

I have a bathroom exhaust vent with louvers similar to the image below. It vents out the side of the house above the bathroom between two bedrooms. When it's breezy out, the flaps rattle so that it ...
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2answers
589 views

Should I install the exhaust hood outlet through the chimney or house wall?

What are the advantages and disadvantages of implementing an outlet of a kitchen exhaust hood through a chimney or directly through the outer wall of the house? There are unused chimneys in the house ...
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3answers
250 views

Bathroom Venting

I live in Edmonton Alberta. My problem is the ensuite bathroom that we shower in all the time. The bathrooms have fans vented through the attic and have same vents as shown above. We can not use the ...
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1answer
429 views

Is continuous exhaust from basement level closet a good idea?

I have a recurring problem with mold in the closet of a basement level bedroom. After considering various options, I'm currently contemplating installing some sort of a low powered continuous exhaust ...
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1answer
608 views

How can I vent a range hood that's not on an exterior wall?

I want to vent a range hood out and it is not on an outside wall. I have already installed 12X3.5 duct into the attic through the cabinet and ceiling (visable). the 90 turn and wall cap are 10X3.5. ...
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0answers
28 views

Backdraft issue w/bathroom exhaust and dryer connected to same air outlet

I live in a condo where a dryer and bathroom exhaust both connect into a Y connector that flows into the same pipe and into the building air shaft. I understand that these two appliances on the same ...
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0answers
107 views

Gas furnace vent clearance from parallel PVC radon vent

I have a hallow wall on my main floor which carries my gas furnace vent up thru the attic and out the roof. This picture is from the basement looking up at the vent and as you can see, the radon ...
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0answers
47 views

Sidewall venting for natural gas appliance

My natural gas hot water tank still uses black (ABS) plastic vents. Due to a building code change, these need to be replaced with System 636 pipes. The current abs plastic pipes go to the roof. I ...
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0answers
1k views

How can I tell if my bathroom ceiling vent is working properly?

Seems to take the vent forever to clear shower vapor from room. I purchased a vent that had a good rating. It is vented to the outside. How do I know if it is working properly and actually venting to ...
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1answer
441 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 ...
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2answers
193 views

Home inspection requires exhaust to attic exterior

We have sold our 1995 built home. One item that needs to be addressed is "Bathroom fans vent to attic and need to exhaust to the exterior of the attic to prevent moisture condensation in attic." I ...
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1answer
532 views

Exhaust venting into air return?

In the condo (2 story semi-detached townhouse built in 2004) I rent, the main bathroom has an interesting vent system. When turned on, 2 fans are activated. One is a booster of some type and ...
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2answers
54 views

Is it common practice to combine room and dryer vent ducts?

Is it common practice to tie the exhaust vent to the dryer (gas) vent pipe in laundry room with no windows? I can find no separate pipe for the ceiling fan/vent in the attic . I am experiencing ...
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1answer
23 views

Cold bathroom that has exhaust

So I have started to notice the bathroom with an exhaust is starting to get really cold as the temperature is getting colder. Is there something I can do about this? Should it really be that much ...
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1answer
681 views

Maximum length for bathroom extractor/exhaust fan vent

Our bathroom extractor fans are vented into the attic of our ~70yr old house in Philadelphia. According to our home energy auditor this is pretty common here. We want to vent these to the outside ...
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1answer
298 views

Condensation at roof, down outside of furnace/water heater vent. What is happening?

I am getting condensation dripping down the outside face of my furnace vent at the roof. I think I know why this is happening I'm just curious how to remedy it. There is a cast iron exhaust pipe that ...
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1answer
856 views

Can I add elbows to move a b-vent exhaust?

I am planning out a kitchen remodel, and would like to move the main exhaust vent for the water heater about 4-6 inches from where it currently passes through the kitchen area. The catch is that I ...
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1answer
166 views

Water Heater Gas B-Vent Install

I installed a new water heater and want to vent it right. The old water heater used ABS pipe since it had a blower. Basically I have a 3" b gas vent pipe coming in and connecting to a flex gas pip ...
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2answers
739 views

My dryer vent was setup to go thru the wall, up 2 stories, to my roof

My dryer vent was setup to go thru the wall, up 2 stories, to my roof..... I have a major problem with this type of setup, as every couple of months, my dryer starts taking forever to dry. When I open ...
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1answer
14 views

Noise reduction hood @ exhaust vent

I live on a busy street in San Francisco and recently installed an exterior exhaust vent line for my range hood (it used to be a worthless recirculating type). Doing so has increased the street noise ...
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0answers
222 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 ...
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2answers
83 views

Water dripping from exhaust vent in basement

I have puddles of water on basement floor when we have no rain, but after we take showers in bathrooms. I do have cracked roofing tar around roof vent so some comes from outside moisture, but not ...
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0answers
325 views

Why is my bathroom vent fan tripping the GFCI when being shut off?

I have a GFCI tripping when a vent fan is being shut off. I saw in KeithS's answer to a similar question that the blades rotating after shut off causes an imbalance, tripping the GFCI. In my case the ...
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0answers
50 views

How to build exhaust system?

I light candles frequently in room, and I wanted to prevent candle soot from sticking to the walls etc. How about I install an exhaust system in that room? What other options do I have? How powerful ...