General Forum (980)

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Determining CDD's and savings from AC downsize/upgrade.

After running calculations on my furnace upgrade with inconclusive results I figure I would look at how much my AC upgrade really saved. ye…

Started by Bob Blanchette

5 Feb 25, 2014
Reply by Bob Blanchette

Ductless Heat Pump vs Radiant

Location Seattle Winter design temp 28 Heating Degree days 4797 Design Temp 80/64 South facing with lots of windows u28 My question is I ha…

Started by James Murray

11 Feb 24, 2014
Reply by Hans Joachim Preiss

The end of Innovation and beginning of Commoditization of Home Performance

Does anyone else feel that Home Performance is becoming commoditized?  The final nail for me is BPI requiring BA candidates to be capble of…

Started by Pat Dundon

4 Feb 20, 2014
Reply by tedkidd

Contractors teaming up with financial lenders

I ran this subject line past a few of the administrators.  They and I could not recall this subject getting discussed here. To start off I…

Started by Hal Skinner

0 Feb 19, 2014

Solid State Relay Boards

I am very interested in learning more on what all I can do with SSR boards. If anybody is better educated on all the different things these…

Started by Michelle Phillips

2 Feb 17, 2014
Reply by Michelle Phillips

Urea Formaldehyde Foam Insulation (UFFI)

Has anyone had the pleasure of dealing with urea formaldehyde foam insulation (UFFI)?  I've just peformed an audit on a home with the stuff…

Started by Steve Burke

10 Feb 13, 2014
Reply by Thomas Varney

In store displays

Hey all, I'm looking to showcase the energy efficiency offerings we have.  We want to showcase some of our common solutions in our area, w…

Started by daniel manriquez

3 Feb 13, 2014
Reply by Michael Dunseith

Did you know that changes have been made to BPI's BA certification upgrade criteria?

In response to industry feedback regarding our Building Analyst (BA) certification upgrade announcement of last November, BPI is adapting c…

Started by Mike Kandel

7 Feb 7, 2014
Reply by Mike Kandel

Google Nest Acquisition- Where the Home Energy Market is Going

The financial news has talked about the recent 3.2 billion acquisition of  Nest, so what does that mean to the home energy market? I believ…

Started by Jose Macho

16 Feb 7, 2014
Reply by Tom DelConte

Home Performance U.S. Tour: PROOF IS POSSIBLE

Hey home performance heroes: Great news: Dow Building Solutions is sponsoring the kickoff of my Proof Is Possible U.S. Tour.  Each stop is…

Started by Corbett Lunsford

2 Feb 7, 2014
Reply by Blaine W Fox

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Featured Forum Discussions

Too many BTU's. Too much horsepower?

Started by Steve in General Forum. Last reply by Walter Ahlgrim 21 hours ago. 3 Replies

Stack/wind pressure and flow networks.

Started by Daniel James Grundy in Training. Last reply by Daniel James Grundy yesterday. 5 Replies

BDT with vermiculite in hollow CMU walls?

Started by Brad Cook in General Forum. Last reply by John Nicholas yesterday. 2 Replies

Strange IR Image

Started by Larry Nissman in General Forum. Last reply by Brad Cook Mar 9. 7 Replies

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Crowdsourcing for Innovation

Share Your Ideas!Novel Building Envelope Design for Increased Thermal PerformanceIn 2014, more than…See More
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Walter Ahlgrim replied to Steve's discussion Too many BTU's. Too much horsepower?
"The 5 ton system you have is not 500 hp racecar engines they are 500 hp truck engines. The duct…"
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Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"So I wanted to start with a basic who can help then go into more detail later. But yes find…"
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Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"My tutor got back to me and while areas don't quite feel right a little to much assumptions…"
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Brennan Less replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
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Energy Auditing Equipment for Sale, Trade or to Purchase

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John Nicholas replied to Brad Cook's discussion BDT with vermiculite in hollow CMU walls?
"If the drywall is in good shape, you should have little worries about the 50pa depressurization…"
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