The HVAC system is an American Standard System including a propane furnace and electric heat pump/air conditioner.

The system is rated at 80,000 BTU for the furnace and the heat pump is a 3 ton system, rated at 34,400 Btuh for cooling, with a SEER ratiing of 18.5.

At 47f the heating capacity is 32,300 Btuh, dropping to 26,000 and 17f.  It has a 9.6 HSPF rating.