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Extraordinarily High CO Reading on a Furnace Vent: 3950 PPM

I just tested  Fraser & Johnston natural draft furnace and got the highest CO reading that I've ever seen:  3950 PPM (air free). Model…

Started by Bachi Brunato

6 Aug 22, 2013
Reply by Eric Kjelshus

Elec Coil heat vs Heat Pump

I have a customer in California who is putting in solar, and currently has a late model propane furnace.  They do not want air conditioning…

Started by Rich Johnson

14 Aug 22, 2013
Reply by George J. Nesbitt

NEW BOOK! Home Performance Diagnostics: the Guide to Advanced Testing

I'm very proud to have finished this monster and made it available to my colleagues and their students!  I hope you find it an indispensabl…

Started by Corbett Lunsford

7 Aug 16, 2013
Reply by Corbett Lunsford

See this: Chicago organizations team up to give underprivileged residents a chance at professional certifications.

If you're looking for a mid-day pick me up, have a look at how North Branch Works and Priority Energy are working together to give unemploy…

Started by Mike Kandel

0 Aug 15, 2013

Do you use a checklist in your work?

Checklists—The Professional's Best Friend

Started by Jim Gunshinan

4 Aug 14, 2013
Reply by Joe Romero

HVAC and Home Performance, a Continuing Dialogue

ACCA Standards "Home Evaluation and Performance Improvement" Out for Public Review. The Air Conditioning Contractors of America Educational…

Started by Jim Gunshinan

0 Aug 12, 2013

BPI Signs MOU with EEM to Expand Market for Building Science Principles (BSP) Certificate to Real Estate Community

Today the Building Performance Institute, Inc. (BPI), the nation's premier home performance credentialing, quality assurance and standards…

Started by Mike Kandel

1 Aug 12, 2013
Reply by Joseph Lamy

The answer to the question - Where's the LED zealot now that we could use his input?

The answer is  I don't concern myself with inorganic LEDs anymore- I pretty much just focus on OLEDs nowadays- really after watching the…

Started by Dennis McCarthy

5 Aug 8, 2013
Reply by Dennis Heidner

Removal of bad smells from mold contaminated attic

Was asked to trouble shoot a mold issue in a Kneewall assembly.  When I arrived there was a damp and hot (+120) kneewall assembly that had…

Started by Tim Marlett

8 Aug 1, 2013
Reply by Brian Robinson

Measuring moisture intrusion

Hi, All,My normal territory is in Northern California, where it's hot and dry.  Recently, however, I helped with an evaluation in the tropi…

Started by Bruce Dichter

6 Jul 28, 2013
Reply by William H Nickerson

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Clearance to combustibles ?

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