Geoffrey Katz's Groups (3)

  • Building Performance Institute (BPI)

    316 members Latest Activity: Apr 20

    BPI is the nation's premier standards development, quality assurance and credentialing organization for residential energy efficiency retrofit…

  • Best Practices (Residential)

    314 members Latest Activity: Mar 1

    Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what needs to find it's way to the dust bin of…

  • Wrightsoft - Manual J / Manual D

    47 members Latest Activity: Feb 20 If you use Wrightsoft to calculate loads or design ducts, you likely have questions.  Get answers from veteran program users and peers here!

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Latest Activity

Dan Antonioli replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Hi Hans, I don't know where you're located but where I am a 2.5 kw pv system costs closer…"
24 minutes ago
Hans Joachim Preiss replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"I use the combination of solar PV and heatpump water heaters in the vast majority of net-zero…"
2 hours ago
Amber Vignieri posted a blog post
6 hours ago
William Zwack added a discussion to the group Job Board
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Residental Energy Specialist: Washington, DC (or possibly telework)

Position Summary: CSRA Incorporated is searching for a Sr. Residential Building Energy Efficiency…See More
6 hours ago
Profile Iconteplie_poly, Gabriel Lieb and Beth Neri joined Home Energy Pros
7 hours ago
Shaun posted a discussion

Commercial duct testing

Hello all,I am a BPI BA, HERS rater and QC inspector. I cant find a ton of information on this…See More
7 hours ago
Dennis Heidner replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Dan, Solar PV and solar H2O work in northern climates...They can still provide the desired goal in…"
21 hours ago
Joseph Frederick added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Blower door Equipment for sale

Minneapolis Blower Door model 700, DG with cruise control. Hoses and manuals, door frame. Used once…See More
yesterday

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