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U-Value Units Conversion

Hi! I am working with a project in the UK and need to convert BTU/(hr ft2 F) used for the U-values in the ASHRAE Standard to W/(m K). Is there any tool to do this conversion or any method you could recommend me to do this? I keep getting very weird result with the converters I find in the internet. Thank you for your help!!

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Eric Johnson
Sustainable Cost Solutions LLC
LEEDuser Premium Member
195 thumbs up

Tue, 05/14/2013 - 09:09

Try SI for HVAC&R-ASHRAE-May 1999 Multiply-By-To Obtain Btu·ft/h·ft2·°F-1.731-W/(m·K)
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Eleni Thomidou
Bilfinger Baugesellschaft m.b.H.
LEEDuser Basic Member
2 thumbs up

Tue, 05/14/2013 - 09:17

We used the same as Eric gives you. Also to find : http://onlinelibrary.wiley.com/doi/10.1002/9780470661093.app1/pdf look under Thermal conductivity Good luck in unit conversions generally! ;)

Tue, 05/14/2013 - 09:38

Thank you very much!! This was really helpfull.

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