Choosing between estimates for heat pump systems

We live in Brattleboro VT and our 1300 sq ft house is far from air-tight but there is blown insulation in the attic and newish windows. We are in the… We live in Brattleboro VT and our 1300 sq ft house is far from air-tight but there is blown insulation in the attic and newish windows. We are in the…Read MoreGreenBuildingAdvisor