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Combustion Furnace BTU output

Does anyone have an inexpensive method to "clock" a combustion furnace to estimate BTU output similar to Natural gas, but for propane, kero…

Started by Ernest V.F. Hodgson in Weatherization

9 Dec 6, 2013
Reply by Bud Poll

Energy Efficiency Federal Tax Credit extension beyond 2013?

Has anyone heard of any news with some hope that Federal Tax Credits for HVAC and insulation will be extended beyond Dec 31 2013?  Accordin…

Started by Trevor Frick in General Forum

5 Dec 6, 2013
Reply by Dennis Heidner

Give the gift of building science!

Give your staff, colleagues and others on your list BPI's Building Science Principles (BSP) guide and certificate exam! 20% off the retail…

Started by Mike Kandel in General Forum

0 Dec 5, 2013

Standard Wall Thermal Upgrade Analysis

The left is a standard wall, 3/4" siding, 1/2" sheathing, batt insulation and 1/2" sheetrock, if you remove the siding and apply 1-1/4" of…

Started by Tom Mallard in General Forum

1 Dec 2, 2013
Reply by Bill Bradbury

Cycling Losses for Gas Furnaces

How much does cycling losses of a gas furnace reduce AFUE vs. Thermal Efficiency? Loss of efficiency for oversized AC units is well documen…

Started by Bob Blanchette in General Forum

4 Nov 30, 2013
Reply by Jan E. Graveamker

Should Homeowners with PV Get Paid Retail or Wholesale Prices for their Excess Electricity?

I've been doing some research, trying to get my arms around the problem of the longterm sustainability of renewable energy in the Unites St…

Started by Jim Gunshinan in General Forum

24 Nov 23, 2013
Reply by Dennis Heidner

Student needs help for HVAC research project

Hi, I am a Building Science student, working on a residential HVAC research project. Specifically, I am comparing the following types of sy…

Started by Lena Burkett in HVAC

7 Nov 22, 2013
Reply by prisco tammaro

Energy Foundation’s BRIM Report Conclusion: Support Efficiency First

From an Energy Foundation report (See more at http://omstout.com/?p=5782): “We agree that contractors should be a part of all major residen…

Started by Mike Rogers in General Forum

1 Nov 21, 2013
Reply by Mike Rogers

French door air sealing

Good day everyone, While performing an audit and blower door test, we came across a french door (pics attached) that, of course, was hemorr…

Started by Green Iowa AmeriCorps in Weatherization

10 Nov 18, 2013
Reply by Kevin Brauer

Combined combustion tester CO + Manometer

Wondering if anyone has any feedback on the combustion analyzers that have integrated pressure measurements. I am getting ready to move to…

Started by Craig Bird in General Forum

2 Nov 15, 2013
Reply by Eric Kjelshus

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Forum Discussions

Origin of guarded blower door testing

Started by Kim Tanner in General Forum. Last reply by Eric Kjelshus yesterday. 9 Replies

Electro Magnetic Fields (EMF)

Started by Barry L NewDelman in General Forum. Last reply by Daniel Cullen Aug 10. 5 Replies

When is it too windy to use blower door?

Started by Brandon Walton in General Forum. Last reply by Iain Walker Aug 10. 17 Replies

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Profile IconArmstrong SMith, Eric Buchalter, Liza Gonzalez and 3 more joined Home Energy Pros
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Eric Kjelshus replied to Kim Tanner's discussion Origin of guarded blower door testing
"That same house that meet highest sealing rate in early 1980 we went back and super sealed it and…"
yesterday
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National Solar Conference and NZE Decathlon at University of Colorado

October 9, 2017 at 6pm to October 12, 2017 at 7pm
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tedkidd replied to Kim Tanner's discussion Origin of guarded blower door testing
"Brendan, Eric, great stuff!"
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