Graham Irwin
  • Fairfax, CA
  • United States
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  • Mark Attard
  • Chie Kawahara
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Graham Irwin's Page

Latest Activity

Graham Irwin commented on Chris Stratton's blog post We're Not Paying Enough Attention to Kitchen Ventilation
"Good idea to stop burning gas inside, induction cooktops eliminate combustion and deliver far more of the heat to the cookware, an additional benefit during cooling season."
Apr 3
Graham Irwin commented on Chie Kawahara's blog post Passive House Delivers 80% Energy Reduction in a 90-year-old House in Santa Cruz
"There was confusion about the insulation levels in the attic when it was installed, discovered during the certification process. Fortunately, it was blown-in cellulose, so it was a minor issue to correct. There are many flat lots with existing…"
Mar 27
Graham Irwin commented on Chie Kawahara's blog post Passive House Delivers 80% Energy Reduction in a 90-year-old House in Santa Cruz
"David, This was a trailblazing project in many ways, and will be much easier to replicate than devise. Beyond that, the cost of new construction would have been higher and and the process harder due to newer, more stringent building code…"
Mar 27
Graham Irwin replied to Luis Hernandez's discussion Calculating BTU lost per cfm leaks
"Remember to convert CFM (cubic feet per MINUTE) to cubic feet per HOUR (i.e. ft3/hr = CFM/60) if you want an answer in BTU/hr."
Jan 27
Graham Irwin replied to Luis Hernandez's discussion Calculating BTU lost per cfm leaks
"Bud, "In an article from one of the developers of the "n" number he stated the resulting estimate could be off by minus 50% to plus 100% so calling it a ball park estimate may be generous." Do you recall the article…"
Jan 27
Graham Irwin commented on Lenka Rihova's blog post PassivHaus – Is it the Future of Home Building?
"Tom, I would add that the DOE has integrated Passive House into their "Challenge Home" standard, which is the flagship program for Energy Star: http://apps1.eere.energy.gov/news/progress_alerts.cfm/pa_id=787 Personally, my intention…"
Feb 25, 2013
Graham Irwin commented on Lenka Rihova's blog post PassivHaus – Is it the Future of Home Building?
"Lenka, I was confused by a number of assertions in your article: 1) You state that PassivHaus (Passive House) does not focus on CO2 emissions. In actuality, the standard sets a limit on primary energy, which is directly correlated with CO2…"
Feb 25, 2013
Graham Irwin is now a member of Home Energy Pros
Jan 5, 2011

Profile Information

Company
Essential Habitat
Professional Certification
Passive House Designer & Consultant
Website URL
http://www.essentialhabitat.com

Comment Wall (1 comment)

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At 12:09pm on January 6, 2011, Diane Chojnowski said…

Hi Graham,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos andupcoming events. If you're blogging about home performance, this is the
place for you!

Don't forget to upload your profile photo. And,add your location on our Member Map!

Thanks!
Diane, HEP Moderator

 
 
 

Home Energy Pros

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Jim Gunshinan commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
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George J. Nesbitt commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"Blower Door; the 2007 test was a depressurization test, and the 2014 a pressurization test, which…"
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George J. Nesbitt replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Plan, plan, plan, plan. The 1st step to is to understand the house, how it's built, the…"
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George J. Nesbitt posted an event

High Performance Windows - A Panel of Experts at Pyramid Alehouse`

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Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Hi David, Thanks for pointing out Martin Holiday's article. I do not wish to engage in the…"
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