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Electric water heaters EF / EIR

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I have a 6kw 40 gal electric DHW. The EF per 90.1 Table 7.8 is 0.87 (is that right?). What should I input for the EIR? The inverse of the EF? I'm better at moving air than electrons...

Thanks!

MARK DARRALL, AIA, LEED AP BD+C, NCARB.

Apr 20, 2011
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