Hello,
As required by 7.4.2 Equipment Efficiency of ASHRAE 90.1-2007, for a water heater less than 12 kW and more that 20 gal, the required performance is EF=0.97-0.00132*V.
My question is: is there any other way to show compliance with this? Maybe with some other efficiency parameter or some good insulation value? Because I've been making some research and there are no companies that sell that product with that specification in my country (Peru).
Thanks in advance.
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5916 thumbs up
June 19, 2017 - 12:27 pm
I am not aware of any other method to demonstrate compliance.
Perhaps you could work with a manufacturer who could help you demonstrate compliance using the referenced standard or demonstrate some similar standard is equivalent.