Can I get away with radiant floor heat, some ducted dehumidification for summertime, and spot ERVS in a large-ish new home in Virginia?
I live in the foothills of the Appalachians. The house under construction has three-stories, 3600 sq’ of conditioned space, with a full bermed/walk-out basement, a main living floor, and a small top floor, including a great room with a large loft above.
I’ve tried to protect it from heat gain in the summer with shaded, low-e windows and foam insulation and sealing.
I’ll heat it with a hydronic radiant system in the floors, backed up by a gas direct-vented fireplace.
Here is what I’ve thought of doing in addition:
fight summertime humidity and bring fresh air to the basement with something like this ducted dehumidifier ( http://www.thermastor.com/Ultra-Aire-65/ ). I would duct this to the main floor upstairs as well, and use it as necessary.
gain additional control over circulation on the main floor with a few spot ERVs like this one ( http://www.efi.org/specs/whispercomfort_sheet.pdf )
resort to a ductless mini split A/C should I otherwise fail to keep the loft above the great room cool in summertime
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