christian kohler
  • Berkeley, CA
  • United States
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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

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

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Helen Best posted a blog post

Low-Flow Shower Heads Save Water

Just about everyone enjoys a nice long hot shower. It does come with some cost for the water and…See More
1 hour ago
Helen Best liked Helen Best's blog post This Might Be the Most Water-Efficient Shower Head Ever Invented
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Therma-HEXX posted blog posts
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Michael Dunseith posted photos
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Jeffrey Anthony posted a discussion

9 Blower Door Frames, 9 Shrouds, and 11 Fans, and 8 Fan Controllers For Sale

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10 hours ago
Quinn Korzeniecki posted a discussion

Five Retrotec Products Added to BPI Product List

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11 hours ago
Tom White's video was featured

New York energy policy & North American Passive House Network Conference

New York is increasing its energy standards and is investigating the possibility of implementing the Passive House Standard for new construction and retrofit projects. Interviewee: Ken Levenson, with NY Passive House Assoc and 475.
11 hours ago
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