Graham Irwin's Discussions (22)

Discussions Replied To (22) Replies Latest Activity

"Hammer and Hand make beautiful, high-end, super efficient and durable custom doors.…"

Graham Irwin replied Nov 27, 2015 to Energy Efficient Entry Door options out there?

25 Nov 28, 2015
Reply by Tauran Ivall

"Oh, and to eliminate the leaky "sweep" gasket at the sill, we used an outswing door…"

Graham Irwin replied Nov 27, 2015 to Energy Efficient Entry Door options out there?

25 Nov 28, 2015
Reply by Tauran Ivall

"On this Passivhaus retrofit in Santa Cruz (http://midorihaus.com) we used Plastpro (…"

Graham Irwin replied Nov 27, 2015 to Energy Efficient Entry Door options out there?

25 Nov 28, 2015
Reply by Tauran Ivall

"John, Interesting though, if you read this NREL article (https://financere.nrel.gov…"

Graham Irwin replied Oct 23, 2014 to How does efficiency factor into a grid parity world?

5 Oct 26, 2014
Reply by Bob Blanchette

"George, You raise a good question. The concept of "free and unlimited" energy is no…"

Graham Irwin replied Oct 23, 2014 to How does efficiency factor into a grid parity world?

5 Oct 26, 2014
Reply by Bob Blanchette

"http://www.nrel.gov/docs/fy14osti/61314.pdf http://www.nrel.gov/docs/fy13osti/55482.…"

Graham Irwin replied Sep 4, 2014 to Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace

14 Sep 4, 2014
Reply by Graham Irwin

"Great information, thank you!"

Graham Irwin replied Aug 5, 2014 to Whole House Fans - Love 'Em or Not?

73 Aug 14, 2014
Reply by Kurt Shafer

"Useful information is the Coefficient of Performance (COP) of the whole house fan vs…"

Graham Irwin replied Aug 5, 2014 to Whole House Fans - Love 'Em or Not?

73 Aug 14, 2014
Reply by Kurt Shafer

"Thanks for the input. The next question to ask is "how much cooling power is deliver…"

Graham Irwin replied Aug 1, 2014 to Whole House Fans - Love 'Em or Not?

73 Aug 14, 2014
Reply by Kurt Shafer

"Kurt, The "large fan" is a whole house fan moving anything from 1000-4000 CFM. By co…"

Graham Irwin replied Aug 1, 2014 to Whole House Fans - Love 'Em or Not?

73 Aug 14, 2014
Reply by Kurt Shafer

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Brad Cook replied to Jim Tenhundfeld's discussion LED's and motion sensors
"I don't know what it stands for. See RAB.com"
yesterday
Jim Tenhundfeld replied to Jim Tenhundfeld's discussion LED's and motion sensors
"That makes sense since the same thing happened with dimmable CFL's.  I have never heard…"
yesterday
Brad Cook replied to Jim Tenhundfeld's discussion LED's and motion sensors
"My first thought is whether the motion sensor and/or the LED lamp is a cheap one. I had so many…"
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John Wagner joined allen p tanner's group
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Home Energy Magazine posted a blog post
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Jim Tenhundfeld posted a discussion

LED's and motion sensors

When completing an audit, a customer told me that when he installed a LED lamp in his outdoor…See More
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Barbara Smith posted videos
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