General Forum (1,087)

Discussions Replies Latest Activity

CAZ Depressurization limits for Oil Burners

Unless I have this wrong, the BPI CAZ depressurization limits and draft calculations are for gas boilers and furnaces.  Up here in New Engl…

Started by Paul Raymer

2 Nov 29, 2010
Reply by Paul Raymer

Energy Loss analysis vs Energy auditing

The task make a home more energy efficient; You could do a comphrehensive test in, fix the problems / do test out with expected results par…

Started by Dennis McCarthy

1 Nov 26, 2010
Reply by A. Tamasin Sterner

What is the R Value of a 2x6 dense packed cellulose wall?

I am reviewing the requirements of the new Maine Uniform Building and Energy Code that goes into effect 12/1/2010.  The required R value fo…

Started by Al Maloney

2 Nov 26, 2010
Reply by Al Maloney

EPA Seeks Public Comment on Draft Environmental Protocols for Home Energy Upgrades

This got buried in a Blog, and I've not quite figured out the difference, so here it is again:     Hello All: With so many HEP participants…

Started by Steve Waclo

0 Nov 24, 2010

Windows: Different Summer and Winter U values?

Anyone ever hear of a window, or unit of insulated glass, as having different winter and summer U values?    This wasn't on an NFRC sticker…

Started by Adam Zielinski

4 Nov 24, 2010
Reply by Adam Zielinski

Ventilation and ERVs--Yellow Flag?

Build it tight AND ventilate right! With tighter building envelopes, getting ventilation right is critical to indoor air quality (IAQ) and…

Started by Tom White

8 Nov 18, 2010
Reply by Al Heath

Top-10 just launched!

Today TopTen USA announced the launch of its free, Web-based rankings of the 10 most energy-efficient products in a wide range of categorie…

Started by Evan Mills

12 Nov 16, 2010
Reply by Steve Waclo

Multifamily Housing

There are 26 million apartments in the U.S. that house nine million families below the poverty level, and four million elderly households. …

Started by Tom White

1 Nov 15, 2010
Reply by Graeme Nix

Training in the Field - Mobile Training Labs for Building Sciences

I wanted to share this with everyone.  Last week, while doing some training work down in SOCAL, I had the opportunity to check out a really…

Started by Michael Stuart

9 Nov 15, 2010
Reply by Graeme Nix

Home Performance XML

Just saw this great blog post from EnergyCircle explaining the new Home Performance XML from BPI.Has anyone here been to visit the HPXML si…

Started by Stephanie Inglis

2 Nov 14, 2010
Reply by Stephanie Inglis

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Forum Discussions

REALLY????

Started by Danny Gough in HVAC. Last reply by Danny Gough on Saturday. 12 Replies

How to Insulate Exposed Outdoor Ductwork?? Help

Started by Daniel Baur-McGuire in General Forum. Last reply by Bradford E. White on Friday. 7 Replies

Where to spend my marketing dollars?

Started by Trip Smith in Marketing. Last reply by Building Performance Institute on Tuesday. 10 Replies

Easy Tests for HVAC during audit

Started by Craig Bird in Weatherization. Last reply by John White May 9. 19 Replies

Water heater ventilation question

Started by Luis Hernandez in General Forum. Last reply by Dennis Heidner May 8. 23 Replies

Polar vortex photos of ice forming INSIDE homes!

Started by Diane Chojnowski in General Forum. Last reply by Michael Cuomo May 4. 1 Reply

LEED for Homes Green Rater Training

Started by Ryan Moore in Training. Last reply by Michael Cuomo May 3. 1 Reply

Latest Activity

Ed Fritz replied to John S. Rodenhizer's discussion Using radiant barriers as duct insulation, Aka "Bubble wrap" What value do you assign for R-value?
"As a radiant barrier manufacturer I've been fighting this bad information for years. I've…"
5 minutes ago
Sam Price replied to Tom Smith's discussion Assessing the true end user price of installing a new boiler?
"There are so many factors when calculating the cost of a new boiler. It's not quite as simple…"
33 minutes ago
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51 minutes ago
Dennis Heidner replied to John S. Rodenhizer's discussion Using radiant barriers as duct insulation, Aka "Bubble wrap" What value do you assign for R-value?
"Read the manufacturers claims and installation steps closely  The foil needs a dead…"
10 hours ago
Danny Gough replied to Danny Gough's discussion REALLY????
"As I have read through everyone's excelent responses, it has caused me to reassess my…"
Saturday
Tim O'Brien replied to Danny Gough's discussion REALLY????
"Bradford - I have seen single family homes with ducted central AC or heat pump hold enough water…"
Friday
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