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Duct Testing High Velocity Systems

Dose anyone have experience testing high velocity duct systems? I've been asked to duct test a Zhender HRV with comfoducts (2" homerun duct…

Started by George J. Nesbitt

2 Jan 10, 2013
Reply by Paul Morin

Passive House Documentary Project

For those familiar with the Passivhaus Institut concepts for super-efficient building design, there is a kickstarter project to help finish…

Started by Powell Smith

3 Jan 9, 2013
Reply by Jack Hampton

Mold Growth & Draftiness Post Energy Improvements

Hello energy pros. I need your combined wisdom before I proceed to help a client of mine address what appears to be mold growth and drafti…

Started by Patrick Michaelyan

15 Jan 7, 2013
Reply by Robert D York Jr

BPI Launches Building Science Principles Certificate for Home Performance and Energy Upgrade Industry

The Building Performance Institute, Inc. (BPI) launched its Building Science Principles (BSP) Certificate of Knowledge and companion Refere…

Started by Mike Kandel

0 Jan 7, 2013

Are efficient LED bulbs worth the price?

Right now I can get a small supply of Philips L Prize 60w Led bulbs at an attractive price. Is it worth switching my home and business over…

Started by Tom DelConte

58 Jan 7, 2013
Reply by Tom DelConte

Home Energy Magazine and BPI Launch HVAC-2-HP

Home Energy magazine (HEM) and the Building Performance Institute, Inc. (BPI) are proud to announce the launch of HVAC-2-HP, a joint e-news…

Started by Mike Kandel

2 Dec 31, 2012
Reply by Allan Mullaly

Polyiso, roxul & reflective insulation combination

I am working on solutions for a cathedral type ceiling rehab project in a century home in Northern Ohio. The challenge is that there is lim…

Started by Daniel W

11 Dec 27, 2012
Reply by Daniel W


Hello all Home Pro's! I am wondering what is the best designed HRV or ERV you are using on your projects. My personal favorite is the Venma…

Started by Kevin Wood

13 Dec 27, 2012
Reply by Kevin Wood

Heat Pump and AC together Go to the section near the bottom for stats on Heat Pump design.

Started by Kevin Wood

10 Dec 23, 2012
Reply by dale conner

Change in Prerequisites for Retrofit Installer and Crew Leader Certifications; Deadline Extended for Retrofit Installer and Crew Leader Pilot Exam Applications

The U.S. Department of Energy (DOE), National Renewable Energy Laboratory (NREL), and Building Performance Institute, Inc. (BPI) have updat…

Started by Mike Kandel

0 Dec 20, 2012



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