Graham Irwin's Discussions (17)

Discussions Replied To (17) Replies Latest Activity

"0.006 ACH50 would be better, but not feasibly attainable. 1.5 vs 0.6 ACH50 makes a b…"

Graham Irwin replied Apr 30 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

"True, a vessel leaking water at the same rate would lose more energy, but since the…"

Graham Irwin replied Apr 30 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

"I take issue with your reasoning. Since Passive House is a performance metric, the c…"

Graham Irwin replied Apr 30 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

"It's interesting to me that ASHRAE 62.2 requires a kitchen exhaust vented directly t…"

Graham Irwin replied Apr 30 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

"I've been involved with a number of Passive House retrofits in California, including…"

Graham Irwin replied Apr 24 to Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

85 May 22
Reply by Kaushal Bharath Raju

"Remember to convert CFM (cubic feet per MINUTE) to cubic feet per HOUR (i.e. ft3/hr…"

Graham Irwin replied Jan 27 to Calculating BTU lost per cfm leaks

23 Feb 1
Reply by Dmitri A Martin

"Bud, "In an article from one of the developers of the "n" number he stated the resu…"

Graham Irwin replied Jan 27 to Calculating BTU lost per cfm leaks

23 Feb 1
Reply by Dmitri A Martin

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Old ductwork efficiency file

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