So, I'm thinking ahead to an HVAC upgrade for my personal home once I finish up the solar project. I've got a single 3 ton central ducted split in the home that overall cools well enough (which is impressive, since it's an older (1965) 2250 ft² single-story home in Riverside, CA. The flat SPF roof is likely the reasoning for far less than average solar gain. In any case, the home, while it overall cools and heats well, and the old ductwork is in pretty good shape (though it is all effectively in the conditioned space, so that's also sort of less important), the home could really use some zoning. The master/office is at one end of the house, and is occupied during the day, while the rest of the house is mostly vacant (well, will be if the kids ever go back to school).
The home has no attic or crawlspace. It's a flat-roof mid-century home, so all utilities (plumbing, ductwork, etc) run down the length of the house over the hallway in a soffit that's about 18 inches tall, 40 some inches wide. My thoughts are to replace the central 3 ton with probably 2 VRF systems. One 24k ODU to handle the kitchen/living/family/dining rooms, probably with 2 or 3 horizontal ducted units in soffit off a common filtered ceiling return grill. A second 24k ODU running some a ceiling cassette for each of the two kids' rooms and maybe 2 ceiling cassettes for the master and office (which is one big room around 700 sq ft).
Based on these general equipment ideas, what brand would you buy? I like that both Mitsubishi and Samsung look to have some cassettes that will fit in a 16" joist cavity, which would be preffered (or potenitally required) for the bedroom units), but don't know if other brands also offer something similar.
The home has no attic or crawlspace. It's a flat-roof mid-century home, so all utilities (plumbing, ductwork, etc) run down the length of the house over the hallway in a soffit that's about 18 inches tall, 40 some inches wide. My thoughts are to replace the central 3 ton with probably 2 VRF systems. One 24k ODU to handle the kitchen/living/family/dining rooms, probably with 2 or 3 horizontal ducted units in soffit off a common filtered ceiling return grill. A second 24k ODU running some a ceiling cassette for each of the two kids' rooms and maybe 2 ceiling cassettes for the master and office (which is one big room around 700 sq ft).
Based on these general equipment ideas, what brand would you buy? I like that both Mitsubishi and Samsung look to have some cassettes that will fit in a 16" joist cavity, which would be preffered (or potenitally required) for the bedroom units), but don't know if other brands also offer something similar.
source https://hvac-talk.com/vbb/showthread.php?2225625-VRF-for-your-own-home-what-would-you-install&goto=newpost
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