Energy Star Certified Home with ICF basement, SIP 1st and 2nd floors, R60 cellulose ceiling, and all truss construction. Building envelope includes basement. Tetco geothermal equipment including a 5-ton W-W directly heating 12 500' PEX radiant loops, a 3-ton W-A providing backup heat and cooling, and a 119 gallon solar water tank (heated from 5-ton W-W secondary loop) w/ 4500W single electric element backup.
Using a programmable logic controller and some Ranco differential temperature controllers to control the equipment.