Mini-Split and high seer HVAC approach
I’m in the design process of a new house and weighing my options for HVAC solutions. This site and others turned me on to mini-splits and even ducted mini-splits which sound great for many reasons. Two items I’m a big fan of are the variable refrigerant flow and high seer, as well as the ease of eliminating HVAC outside the unconditioned envelope.
Fast forward a couple of weeks of research and I see two pitfalls.
1.) A lot of standard central HVAC equipment seems to be adopting VRF and has comparable seer ratings from what I can see. The sky-high seer on mini-split typically only comes from the wall-mounted heads; the ceiling-mounted cassette or mini ducted systems drop back down to 20ish seer which is no better than standard HVAC.
2.) The filtration on mini-splits seems pants compared to what you can do with a large air handler.
What’s typically the best approach to this? The house will be a quite large 1 story in Phoenix AZ so the biggest demand will be cooling capacity.
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