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Ask An Energy Star Expert

Throughout the month of November, Mike Katz of DOE will answer your questions regarding Energy Star, Portfolio Manager, and the planned update in 2013. Please post your questions below!


  • I'm looking for design-heat-loss-per-SF for new and properly designed and constructed buildings in various degree-day zones. Year ago, in the 9000 DD zone, I used 20 BTU/SF/hr.  


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