The building envelope features; 12” Double Stud walls with R41 Dense Pack Cellulose, Integrity Triple pane windows, and real attention to air sealing. Mid Construction this home tested at 1.1 ACH50. This was before the basement had been insulated and rim joist air sealed. The Owner has installed a propane stove for some ambiance heating, but the primary heating system is a cold weather Air Source Heat Pump. No boiler system is installed in this home. The owner reports that last winter the ASHP had “no problem” keeping up.

