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G. L. Stephens

Richmond, VA, United States

Sean Skorton

Mansfield, CT, United States

Go Green Group

Nanuet, NY, United States

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Minneapolis, MN, United States

alfredo jeff

Brooklyn, NY, United States

Andrew 'A.J' Levis

Sebastopol, CA, United States

Ken

Bristol, PA, United States

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Ithaca, NY, United States

Tom Schaefer

Redwood City, CA, United States

Jason Green

Pittsburgh, PA, United States

CleanEdison, Inc.

New York, NY, United States

Rob Harold

San Pablo, CA, United States

Doug Pearl

Thornville, OH, United States

Ken wilson

Becker, MN, United States

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Petaluma, CA, United States

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Brooklyn, NY, United States

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Littleton, CO, United States

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Pescadero, CA, United States

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Cincinnati, OH, United States

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Honolulu, HI, United States

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Anchorage, AK, United States

Latest Activity

David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Static pressure drop through a straight length of pipe is a function of friction rate, and friction…"
3 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Apparently the air passing over the PVC creates a strong static field that in turn impedes air flow."
4 hours ago
David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Why would you think PVC has high resistance?"
4 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Thanks David - I was going to look at PVC for the HRV but was cautioned against it, not because of…"
4 hours ago
David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Great post, Sean. I agree that screws are wise when joining metal ducts, but its also true that…"
5 hours ago
David Butler posted a discussion

Welcome Home Performance Forum Members (formerly RESNET BPI - Energy Audit and Home Performance)

Last month the Home Performance Forum merged with Home Energy Pros, now under the Home Performance…See More
5 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Various studies have indicated very little air flow along surface of duct (for ventilation - have…"
6 hours ago
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"Hi Don. We have never considered screws as impeding airflow, but I can see how in some ducts (e.g.…"
7 hours ago

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