Sizing Ductless Heat-Pump for ADU
Im in the process of selecting a ductless heat pump for a small, open floor plan ADU I am building. Im trying to interpret the analysis done by my Title 24 Green Energy consultant (calcs attached). My consultant assured me that while the “system output” shown is grossly over estimated the actual “system load” calcs (highlighted in red) are much closer to actual size and she recommends using these to size my minisplit unit. However these calcs are not based on “manual J” parameters. She says that these calcs are actually conservative and she would size up. The numbers do seem reasonable (17kbtu for 1000sqft).
Can anyone help me understand what these calcs on the Title 24 analysis are based on and are they good enough to size my system or should I do a full manual J (not sure where to start with that). thanks!
Petaluma CA, climate zone 3C
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