Hydronic radiant floor heating systems use solar energy collected from a homes pre-existing solar panels to heat water and send it through tubes laid beneath the floor. This hydronic system, used in conjunction with a solar water heater by SunEarth, is compatible with any type of floor.
Heat Your Home w/ Solar Hot Water - This is close to our plan. The only difference is we plan on being able to flush the system with cold water as our floors will be cement and we can cool our floors also. :)