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Tools of the Trade

A hammer and a saw used to be the key tools for home contractors. Today, the best-in-breed also use high-tech equipment while performing a professional energy audit or verifying that construction has been done correctly.

Members: 105
Latest Activity: Jul 21

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Discussion Forum

Seeking a Flow Hood

Started by George Matthews Apr 10. 0 Replies

Affordable Manometers?

Started by Isaac Savage. Last reply by Pete Stoermer Feb 15, 2016. 3 Replies

Looking For A Retrotech Duct Tester ?

Started by Chris Schiewer. Last reply by Jamie Kaye Dec 16, 2015. 1 Reply

Buying Used Equipment

Started by Nick Semon May 18, 2015. 0 Replies

Used Blower Doors?

Started by Isaac Savage. Last reply by Cameron Millard Jan 16, 2014. 3 Replies

Instant read thermometers

Started by Ryan Moore. Last reply by David Meiland Apr 29, 2013. 3 Replies

Good Place to Compare Appliances?

Started by Donna Sanders Jan 12, 2013. 0 Replies

Smoke puffers

Started by Paul Raymer. Last reply by Jim Gunshinan Mar 15, 2012. 8 Replies

CO Testing for BPI

Started by Paul Raymer. Last reply by Chris Stratton Mar 2, 2012. 6 Replies

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Comment by Ron Jones on December 7, 2010 at 9:23pm
I'm not sure I'd want to depressurize the ducts. Wouldn't you be pulling contaminated air, through any leakage areas, from attics and crawlspaces into the conditioned space?
Comment by Paul Raymer on December 7, 2010 at 9:00pm
Duct testing
Do you find it better to do positive pressure duct testing (pressurizing the ducts) or negative pressure duct testing (depressurizing the ducts)? And if you use the Retrotec DU200 duct tester, how do you attach the configuration rings if you are doing depressurization testing?
 

Members (105)

 
 
 

Discussion Forum

Seeking a Flow Hood

Started by George Matthews Apr 10. 0 Replies

Affordable Manometers?

Started by Isaac Savage. Last reply by Pete Stoermer Feb 15, 2016. 3 Replies

Looking For A Retrotech Duct Tester ?

Started by Chris Schiewer. Last reply by Jamie Kaye Dec 16, 2015. 1 Reply

Buying Used Equipment

Started by Nick Semon May 18, 2015. 0 Replies

Used Blower Doors?

Started by Isaac Savage. Last reply by Cameron Millard Jan 16, 2014. 3 Replies

Latest Activity

Brad Cook replied to David Butler's discussion How would you insulate this roof?
"Bill, you just posted a number of responses in different areas of the thread. I will try to respond…"
31 minutes ago
Donald Hester liked Marc Tannenbaum's blog post 3 Issues HVAC contractors Should Know About Impacting Customer Comfort and Health
33 minutes ago
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45 minutes ago
Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"In an earlier response, I noted that we COULD haul drinking water and use the water we collect off…"
1 hour ago
Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"As to the elevations on the cupola – the existing windows up there might survive adding…"
1 hour ago
Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"The purlins are 1 3/4" thick. I believe the top chord of the trusses are 10" deep (but…"
1 hour ago
Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"The cupola windows are the only place there would be a problem if 4" of foam were added above…"
1 hour ago
Bill Spikowski replied to David Butler's discussion How would you insulate this roof?
"The purlins are 1 3/4" thick. I don’t know about the fire dangers of PIC or other foams.…"
1 hour ago

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