Acadia Heating and Cooling Comboby Hallowell

    Outperforming conventional heating systems by 200%, the maker says, the all-electric Acadia combined heating and cooling system is touted as a "next-generation heat pump." Acadia does not require supplemental heat and can use its efficient refrigeration cycle to continue heating even when outdoor temperatures fall below freezing. Opti-Cycle technology uses a second compressor to boost the system's performance. Early adopters have seen utility bills drop as much as 70%. 877.322.2342. www.gotohallowell.com.