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1answer
161 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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1answer
18 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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1answer
57 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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0answers
34 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

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 ...
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0answers
892 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
9 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
50 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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0answers
59 views

Do I need a damper on both ends of the ducts on my kitchen range hood/extractor?

My new kitchen range hood is compatible with both 3-1/4" x 10" rectangular ducting and 7" pipe ducting. It includes a damper for the 3-1/4" x 10" format, and an adapter plate for 7" - no damper was ...
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0answers
26 views

soffit venting on cottage

I 'm installing a ridge vent on a 12X12 roof 16" on center..that wouldn't be a problem(little steep) The problem is where the rafters cross the plate there is no space to vent to soffits from loft ...
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0answers
207 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
48 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 ...