My Friends (40)

Charles Cormany

Sonoma, CA, United States

Linda Wigington

Waynesburg, PA, United States

Chris Stratton

Berkeley, CA, United States

Green Jobs Training Center

Howard Beach, NY, United States

Home Energy Magazine

Berkeley, CA, United States

Ron Jones

Santa Cruz, CA, United States

Michael Dunseith

Howard Beach, NY, United States

James White

Wenatchee, WA, United States

Craig A. Lawson

Santa Rosa, CA, United States

Gail Brownell

San Francisco, CA, United States

Russell Bayba

Berkeley, CA, United States

Judy Rachel

North Hollywood, CA, United States

Isaac Savage

Asheville, NC, United States

Steve Mann

San Luis Obispo, CA, United States

Lester Shen

Minneapolis, MN, United States

Iain Walker

Alameda, CA, United States

Allison A. Bailes III

Decatur, GA, United States

Ed Thomas

Vallejo, CA, United States

Jim Gunshinan

Berkeley, CA, 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…"
4 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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