The heating-and-cooling system uses a heat pump to flow hot and cold water through pipes embedded in the polished concrete radiant floors.  Photo 11 of 16 in Budget Breakdown: The Foundation Is Also the Floor at This Shedlike $1.1M Hudson Valley Retreat

Budget Breakdown: The Foundation Is Also the Floor at This Shedlike $1.1M Hudson Valley Retreat

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A heat pump pushes hot or cold water through piping in the polished concrete floor to adjust the interior climate.