Graham Irwin's Discussions (19)

Discussions Replied To (19) Replies Latest Activity

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

Graham Irwin replied yesterday to How does efficiency factor into a grid parity world?

4 yesterday
Reply by Graham Irwin

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

Graham Irwin replied yesterday to How does efficiency factor into a grid parity world?

4 yesterday
Reply by Graham Irwin

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

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

14 Sep 4
Reply by Graham Irwin

"Great information, thank you!"

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

73 Aug 14
Reply by Kurt Shafer

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

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

73 Aug 14
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 to Whole House Fans - Love 'Em or Not?

73 Aug 14
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 to Whole House Fans - Love 'Em or Not?

73 Aug 14
Reply by Kurt Shafer

"I think it is important to check the energy consumption of such a large fan, even as…"

Graham Irwin replied Jul 31 to Whole House Fans - Love 'Em or Not?

73 Aug 14
Reply by Kurt Shafer

"This may be of general interest: https://attendee.gotowebinar.com/register/371662123…"

Graham Irwin replied May 1 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

"Good point, but the Passive House system is also running continuously, which would t…"

Graham Irwin replied May 1 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

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