Dennis Heidner's Discussions (198)

Discussions Replied To (171) Replies Latest Activity

"Nearly all the manufacturers also offer tanked condensing gas hotwater heaters with…"

Dennis Heidner replied May 22, 2014 to Tankless Water Heaters... has their time finally come?

32 May 28, 2014
Reply by Dennis Heidner

"First,  always check with your utility.  Sometimes the utilities have made arrangeme…"

Dennis Heidner replied May 15, 2014 to Where did you buy your LED lights?

23 Nov 14, 2014
Reply by Dennis Heidner

"Several things to consider: 1) The hot water usage. The first unit (Amazon) is only…"

Dennis Heidner replied Apr 29, 2014 to Tankless Water Heaters... has their time finally come?

32 May 28, 2014
Reply by Dennis Heidner

"I believe PolyISO can absorb moisture if it gets wet... and it would get heavy.  Mak…"

Dennis Heidner replied Mar 18, 2014 to Rigid Foam (Polyiso) as a Weather-Resistive Barrier

10 Mar 18, 2014
Reply by Dennis Heidner

"Dennis McCarthy,  not sure if you've seen this... "Cree Sheds Light on Development o…"

Dennis Heidner replied Feb 16, 2014 to Solid state lighting - saves lives- and it improves life .

4 Nov 26, 2014
Reply by reflintorm

"It is okay as long as you remember  both green and red are the colors that can not b…"

Dennis Heidner replied Feb 13, 2014 to Solid state lighting - saves lives- and it improves life .

4 Nov 26, 2014
Reply by reflintorm

"Good point.   The low cost iPhone cameras are also opportunities for teaching moment…"

Dennis Heidner replied Feb 13, 2014 to Smartphone Infrared Thermal Imaging Camera

12 Feb 13, 2014
Reply by Dennis Heidner

"The resolution and sensitivity of the kickstarter version -- makes it mostly a novel…"

Dennis Heidner replied Feb 10, 2014 to Smartphone Infrared Thermal Imaging Camera

12 Feb 13, 2014
Reply by Dennis Heidner

"Probably closer to $70... I've been buying at about $35/tube in singles... The life…"

Dennis Heidner replied Feb 10, 2014 to The growing need for lighting auditors

15 Jan 10, 2015
Reply by Don Fitchett

"Sorry,  I couldn't resist ... (PIX below) the bulbs below were collected in my house…"

Dennis Heidner replied Feb 9, 2014 to The growing need for lighting auditors

15 Jan 10, 2015
Reply by Don Fitchett

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Dan Antonioli replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Okay, a couple of things. The 1.0 kW per square meter reference is only under the most ideal lab…"
5 hours ago
Hans Joachim Preiss replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Dan, Let me attempt to compare apples with apples: My solar thermal system is located in…"
5 hours ago
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…"
8 hours 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…"
10 hours ago
Amber Vignieri posted a blog post
14 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
14 hours ago
Profile Iconteplie_poly, Gabriel Lieb and Beth Neri joined Home Energy Pros
15 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
15 hours ago

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