The power used to heat a home is a LARGE part of your electric consumption. Any family uses LOTS of it.  The addition of this one component (A Solar Thermal water heating System) can cut your annual electric bill in half. It will provide ALL your water heating energy load PLUS much of your home heat most of the year. Yes, there are three months of winter which may require additional input.   The home heating arrangement can take various forms; you can circulate warmed waiter in tubes under the home floor for a wonderful uniform heating or you can insert one of our air heat exchangers in the ducting leading through out the home. Either way, the heating load is provided from the solar thermal storage tank. Either way, one can have backup heating capability in place so that at no time will on loose heat to the home.