ASHP for PGH in Climate Zone 6

We live in a recently built house (not passive certified but following PGH principles).  The house has three floors with radiant floor heating installed in the basement and main floor. … We live in a recently built house (not passive certified but following PGH principles).  The house has three floors with radiant floor heating installed in the basement and main floor. …Read MoreGreenBuildingAdvisor