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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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887 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
186 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
112 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
286 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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1answer
116 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
295 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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2answers
148 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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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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1answer
48 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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45 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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57 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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25 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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205 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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47 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 ...