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

Eric Kjelshus replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"The heat exchanger gets burnt out, if presser is to high or if mix is to rich, then I see holes in…"
1 hour ago
Hans Joachim Preiss replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"Good discussion. I came across this comprehensive presentation by Gas Consultants on the effects at…"
2 hours ago
Dale Pickard replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"Excellent reply Hans. I think that there isnt' a good general answer to this question but that…"
5 hours ago
Mary Desilva posted blog posts
7 hours ago
David Heslam joined David Eggleton's group
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1000 Home Challenge

Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding…See More
7 hours ago
Jose Macho commented on Charlie Hewitt's blog post Revisiting Heat Pump Water Heaters
"I am aware of homeowner dissatisfaction of hybrid units not performing due to location,…"
8 hours ago
KC Brown added a discussion to the group Job Board
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Job Opening: SR. ENERGY ENGINEER - CLEAResult, Energy Efficiency Leader (Pennsylvania)

POSITION:  Sr. Energy EngineerREFERNCE CODE:  2015-2197 JOB DESCRIPTION:CLEAResult is a leading…See More
10 hours ago
KC Brown joined Diane Chojnowski's group
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Job Board

This group is for posting jobs related to all aspects of the home performance industry including…See More
10 hours ago

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