I designed and built our home in 1983. It has 480 Sq. ft. of glass on the south sun porch and is super insulated. Heat is trans to the house three ways 1. Air, through a duct and fan, 2. Water, through pumps into 950 gal. of water and pipes under the basement floor. The concrete and sand that is insulated and heated by the water pipes weighs apx. 250 tons. 3. Or by opening the doors to the sun room. Controllers are Resol DeltaSol E, BX, and a DL3.
Olivia Minnesota 100 Miles W of Twin Citys
Retired from Farming, Cattle feeding, Collage instructor, Postmaster.