Get expert advice on improvements to your home, including design tips, how much you'd expect to pay for a pro and what to ask ...

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 ...

Conceived for industrial applications, the Danae heat pump ... systems use propane (R290) as the refrigerant and can purportedly deliver flow temperatures of up to 75 C. The U.S. heating ...

Germany's Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) has unveiled a new heat pump intended for use in industrial processes with heating ... a special propane (R290 ...