Dual fuel HVAC systems consist of both an electric heat pump and a gas furnace. These hybrid systems alternate between these two heat sources, delivering comfort regardless of the season, temperature, ...

A Virginia retrofit pairs propane and electric to eliminate resistance heat, cut energy costs, and deliver consistent comfort ...

Dual fuel systems, with their combination of an all-electric heat pump and gas furnace, give homeowners the best of both worlds: comfort and energy savings, topped off with a healthy dose of saving ...

New Hitachi air365 Hybrid system automatically switches between heat pump and furnace operation according to outdoor temperature sensors for a more efficient performance year-round IRVING, Texas, Sept ...

How do you reduce greenhouse gas emissions from one of the largest sources — buildings — without breaking the bank or the grid? To answer that question, the utility Puget Sound Energy (PSE) turned to ...

These are the best whole-house heat pumps from Consumer Reports' tests. These heat pumps are more efficient and can save you money.

Heat pumps run on electricity and furnaces run on fossil fuels, natural gas, propane, or oil. Our experts say there's no clear answer for which type is more energy efficient. Location plays a major ...

Johnson Controls-Hitachi Air Conditioning has launched a new residential heat pump system combining an air source heat pump (ASHP) and a gas furnace. “When temperatures are extremely low, most heat ...

Add Yahoo as a preferred source to see more of our stories on Google. Heat pumps run on electricity and furnaces run on fossil fuels, natural gas, propane, or oil. Our experts say there's no clear ...