Minisplit – One indoor unit for two adjacent rooms?
Do any of the minisplit manufacturers offer a wall mounted indoor unit that will service two adjacent rooms? I’m considering a minisplit to replace the gas furnace and a/c in my 1300 sq. ft. single level home in zone 3A (mixed-humid). Without a shared indoor unit on the common wall between two bedrooms, I might need five indoor units. The multizone minisplits seem to jump from 4 to 8 zones and the price jumps too. I understand the technical problems with one wall unit serving two rooms, but have any of the manufacturers solved them.
As a side note, retrofitting an older house with a minisplit is a challenge. First off, my house has R15 walls instead of the R40 or R50 used in Carter Scott’s houses. I would expect my results to vary from his if I installed a single zone minisplit.
Most contractors I have spoken with have installed minisplits in additions only. Deciding on the number, the type (wall, ceiling cassette, ducted) and the location of the indoor units for a whole house is a new experience for them. Is there a Manual D for minisplits?
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