christian kohler
  • Berkeley, CA
  • United States
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christian kohler's Page

Latest Activity

christian kohler replied to Adam Zielinski's discussion Windows: Different Summer and Winter U values?
"Steve, Adam, Andre forwarded your question to me, that is why I responded here. Many manufacturers have products that meet U=0.30, since that was the cut-off for the IRS tax credit. If you are looking for even better windows, you can take a look…"
Nov 24, 2010
christian kohler replied to Adam Zielinski's discussion Windows: Different Summer and Winter U values?
"The winter U-value is what is shown on the NFRC labels, and should be used for code compliance and incentive programs. It is calculated at -18C (about 0F) outside, and 21 C (about 70F), and a roughly 15 mph wind speed. The summer U-value is…"
Nov 23, 2010
christian kohler is now a member of Home Energy Pros
Nov 23, 2010

Profile Information

Company
LBNL
Website URL
http://windows.lbl.gov/Christian

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Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.  Home Energy Pros is sponsored by the Better Buildings Residential Network.

Latest Activity

Gar Swaffar commented on Gar Swaffar's blog post Cost of using a BPI QCI?
"Ip.s., I would presume there will be a difference between the Left Coast and nearly everywhere else."
10 hours ago
Gar Swaffar posted a blog post

Cost of using a BPI QCI?

I'd like to find out if there is a consensus on a rule of thumb cost of a QCI onsite for…See More
10 hours ago
Gar Swaffar is now a member of Home Energy Pros
10 hours ago
Colin Genge posted an event

Infiltration and Duct Leakage with BPI at Online

July 30, 2015 from 1pm to 2pm
Blower door and duct test requirementsCalculating resultsCertification optionsTest preparation and…See More
12 hours ago
Stacy Hunt posted an event

Volunteers needed for the upcoming U.S. Department of Energy Solar Decathlon in Irvine, CA at Orange County Great Park

October 8, 2015 at 11am to October 18, 2015 at 7pm
Volunteer for the upcoming U.S. Department of Energy Solar Decathlon 2015, taking place Oct. 8-18…See More
12 hours ago
Kim Tanner posted videos
18 hours ago
Don Fitchett posted a blog post
yesterday
Benny hani replied to Benny hani's discussion Software
"Thank you so much for your help."
yesterday

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