Heat pump systems in combination with underfloor heating are sort of common in new homes over here (not the norm, but common enough). The heatpump heats the flo

Heat pump systems in combination with underfloor heating are sort of common in new homes over here (not the norm, but common enough). The heatpump heats the floor in winter, cools it in summer. The heat is stored in a large water tank, and it can be transferred to potable water for showers and whatnot. Best part is, you can supply heat to the tank in multiple ways, even concurrently. Think heat pumps, solar water heaters, or even a fireplace if you're so inclined.