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

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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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Dennis Heidner replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Dan, Solar PV and solar H2O work in northern climates...They can still provide the desired goal in…"
7 hours ago
Joseph Frederick added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Blower door Equipment for sale

Minneapolis Blower Door model 700, DG with cruise control. Hoses and manuals, door frame. Used once…See More
10 hours ago
Dan Antonioli replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"For my particular application the heat pump heater would be integral to the tank and thus be…"
12 hours ago
Dennis Heidner replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"What climate zone are you in?  Where would the hot water heater be set?  Northern…"
14 hours ago
Larry Weingarten replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Hello:  Looking for solid numbers,you might want to search "Martin Holladay solar thermal…"
14 hours ago
Profile IconGabriel Lieb, Beth Neri and Aaron Beck joined Home Energy Pros
15 hours ago
Kim Tanner posted a discussion

Game of Homes

Have you seen the new online game by EnergyLogic, Game of Homes? If not you should check it out!…See More
16 hours ago
Beth Neri liked John Gillis's discussion Tamarack Technologies Introduces First Intelligent Whole House Fan
17 hours ago

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