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Measuring fresh air intake ducted to a return and no way of measuring from outside.

I am sure this is a challenge that some of you have faced before: You have an air handling system with fresh air intake that is ducted into…

Started by Jack Baikoff in General Forum

22 Feb 7, 2013
Reply by Dale Sherman

Ahhh...home inspection! The things we find!

A colleague sent this along and I thought I would share.  Buckle up, folks.  This is what we're up against! http://blog.sfgate.com/onthebl

Started by George Kopf in General Forum

1 Feb 7, 2013
Reply by David Meiland

Rock Wool Old Dog New Tricks?

I've been reading a lot of info from Europe on rock wool. It is claimed to be close in R-value to foam and much greener with open vapor. I…

Started by Richard Scott Mills in General Forum

5 Feb 6, 2013
Reply by Jose Macho

What do dung beetles have that we don't?

I see over 14,000 news items -- including all the major media -- in the past two days. What do they have that we don't? We've all heard the…

Started by Evan Mills in General Forum

3 Feb 3, 2013
Reply by Evan Mills

Would you like a lighting audit with your energy audit ?

Do energy audits that neglect doing the "subset" of a lighting audit underserve the client ?    If your auto mechanic excluded evaluations…

Started by Dennis McCarthy in General Forum

8 Feb 2, 2013
Reply by Curt Kinder

Does Neatness Count?

This may seem trivial, but to me as a homeowner it isn't. When it comes to blown-in or spray foam insulation in unfinished attics, does nea…

Started by Jim Gunshinan in Best Practices

8 Jan 31, 2013
Reply by Jim Gunshinan

BPI Certified Repairman Saves Woman's Life by Recognizing Carbon Monoxide Poisoning

BPI recognizes the heroic efforts of BPI Certified Building Analyst Carl Harvey, who saved the life of a homeowner when he detected a poten…

Started by Mike Kandel in General Forum

0 Jan 31, 2013

The Energy Upgrade Project Manager as the Rater

In California the prevalent and rebate or incentive sanctioned model to perform a whole house performance upgrade usually requires places h…

Started by Bruce Helft in General Forum

0 Jan 28, 2013

Venting a clothes dryer through an unheated garage

We recently vented a gas clothes dryer through an attached and unheated garage, to an outside wall of the garage. We are located in Central…

Started by Brad Cook in Best Practices

10 Jan 25, 2013
Reply by Eric Kjelshus

January's Stump the Chump

This month's head scratcher comes from Ken Tohinaka of the Vermont Energy Investment Corporation in Burlington, Vermont. Ken explains that…

Started by Mike Kandel in General Forum

6 Jan 24, 2013
Reply by John Brooks

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Featured Forum Discussions

Too many BTU's. Too much horsepower?

Started by Steve in General Forum. Last reply by Eric Kjelshus 21 hours ago. 4 Replies

Stack/wind pressure and flow networks.

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

BDT with vermiculite in hollow CMU walls?

Started by Brad Cook in General Forum. Last reply by John Nicholas on Thursday. 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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Eric Kjelshus replied to Steve's discussion Too many BTU's. Too much horsepower?
"Its more about run time with high RH removing, than to large over sized AC unit, in houses.  …"
21 hours ago
Sarah OConnell posted a blog post

Crowdsourcing for Innovation

Share Your Ideas!Novel Building Envelope Design for Increased Thermal PerformanceIn 2014, more than…See More
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Colin de Paor is now a member of Home Energy Pros
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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…"
yesterday
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…"
Thursday
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…"
Thursday
Brennan Less replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"Daniel, I'm assuming you're trying to predict the airflows through the different openings…"
Thursday
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
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