HVAC advice for 275sf pool house
Climate zone 3, Northern California. Non-coastal, although significant morning humidity most mornings and nights due to ocean wind patterns. Buildjng has one BR and one bath, 2×6 walls insulated via flash & batt to nominal R28 (air sealed exterior w/ 3M 8067 on all seams), R40 closed cell foam ceiling. Heat and cooling load is pretty small… I haven’t run numbers but must be under 9K BTU even with 150sf of window and door glazing?
Was imagining a single wall-mounted mini-split, but finding one small enough isn’t easy. Then it occurred to me that you folks actually know what the best options are for heating and cooling this space. What would you recommend? The tile floors have WarmUp heating cables installed for comfort during the winter, if that’s a factor (and I do have solar to offset some/most of the spurious power use).
Appreciate your advice and/or questions,
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