[Equest-users] Appendix G Baseline for a Hybrid Fuel Source DHW plant
molly.curtz at arup.com
Thu Oct 16 08:53:27 PDT 2014
I'm working on a LEED project where we are considering an air-source heat pump domestic hot water plant with gas boiler backup for low temperatures where the heat pump capacity drops off. Appendix G of ASHRAE 90.1 does not seem to give guidance as to what baseline should be used (gas or electric resistance) for such a hybrid system. Has anyone encountered this before?
Thanks in advance for any suggestions!
Molly Curtz PE BEMP LEED AP BD+C
Senior Mechanical Engineer
719 Second Avenue Suite 400 Seattle WA 98104
t +1 206 749 9674 d +1 206 493 2234
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