Owner built in 1980, single family, all electric, Earth Sheltered, (Roof
covered with 2 feet of earth), Energy saving, passively Solar heated house
with water source heat pump for backup heating and cooling using indoor
swimming pool as heat sink reservoir and poured concrete (brick embossed
surface) internal walls for heat storage. Combined heating and cooling costs
for total year is less than $25.00. Located on 4.5 acre, 409x498 wooded lot
which shields privacy of front yard and house from street and neighbors.
For complete details check my web site http://info.a1poweruser.com