I need help choosing the correct minisplit and heat pump for my studio
I have two proposals to install a single unit mini-split with an outdoor condenser for my studio building. The building has a 24 x 32′ foot print. The walls are 10′ high, with a cathedral ceiling that is 16′ high at the ridge. Walls are 2 x 6 (at least) with fiberglass batts. Roof rafters are 2 x10″ (I think) with fiberglass batts between, and then either 1 or 2″ rigid foam insulation skimming it (under the sheetrock). Building is tight. Floor also has fiberglass and rigid foam board between the 2 x 12″ joists.
The proposals recommend either the Mitsubishi MSZ (and MUZ) FE 18NA, which is the largest unit, or the MSZ (and MUZ) FH 15 NA (which is the largest unit in the FH series). The latter is a smaller unit obviously, but it has the three stage filtration, and one contractor says the FH is more “efficient” or something like that than the FE series. I want to be sure the unit is sized correctly. Just heard back from the guys who proposed the FH… now they say use the FE… guess I got my answer.
The building is an art studio (painting) and I do some carpentry in it (mostly not) so there can be some dust generation.