I’m adding radiant floor heating to my 2 story house during a complete remodel. I am also wanting central air, and am looking at high velocity. I would prefer not running a duct from the basement to the second floor (lack of good space for it). I am considering having 2 separate air handlers, one in the basement for the first floor and one in the attic for the second floor. I saw some information on the UNICHILLER system (using chilled water for the refrigerant) which appears to work well with multiple air handlers. Does anyone have any experience with this system, or have other suggestions?
This straightforward method focuses on water management, air infiltration, and smooth operation.
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