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2answers
88 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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votes
1answer
93 views

Should I vent 2nd floor bathroom exhaust down?

I am looking to install an exhaust fan in a bathroom where one does not already exist. I've read that it is preferable to run exhaust ducts down instead of up, but does that apply here? We would be ...
2
votes
1answer
202 views

alternative roof vents

Local building code requires a roof vent that is less than ten feet away from an operating skylight to extend a minimum of three feet above the skylight. Is there an alternative venting system, other ...
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vote
1answer
22 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 ...
1
vote
0answers
25 views

Can mold growth be removed and cleaned up in a two-story apartment building successfully?

I live in an apartment building that has 24 units which all the bathrooms vent into the hollow walls or their neighbors bathrooms upstairs. (so in their ceiling, the smell and moisture comes out ...
1
vote
0answers
33 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 ...
1
vote
0answers
111 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 ...
1
vote
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 don'...
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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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0answers
229 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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votes
0answers
340 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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votes
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 ...