Dennis Heidner's Discussions (202)

Discussions Replied To (174) Replies Latest Activity

"That really depends on your location.  Northern climates yes,  but Hawaii,  or clima…"

Dennis Heidner replied May 25, 2014 to Tankless Water Heaters... has their time finally come?

32 May 28, 2014
Reply by Dennis Heidner

"Yes,  and the authors unit (Marey) is probably okay,  until you look at what else mi…"

Dennis Heidner replied May 23, 2014 to Tankless Water Heaters... has their time finally come?

32 May 28, 2014
Reply by Dennis Heidner

"AO Smith Vertex is about $1600, 90% efficient, 78,000 BTU,  which means you might be…"

Dennis Heidner replied May 23, 2014 to Tankless Water Heaters... has their time finally come?

32 May 28, 2014
Reply by Dennis Heidner

"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

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Too many BTU's. Too much horsepower?

Started by Steve in General Forum. Last reply by Eric Kjelshus on Saturday. 4 Replies

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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

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Eric Kjelshus replied to Steve's discussion Too many BTU's. Too much horsepower?
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Walter Ahlgrim replied to Steve's discussion Too many BTU's. Too much horsepower?
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Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
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