"It was a hybrid so when the heat pump function wasn't enough it would still heat the water no problem." Curious homeowner ...

Water heating is the second-largest energy cost for U.S. households. But you can save with a more efficient water heater, ...

Households can save up to $300 per year just by switching. Are your energy bills way too high? Replacing your outdated water ...

Local officials say a proposal to regulate the sale of gas heaters will burden residents while proponents say it will improve air quality.

Korean scientists have designed a liquid air energy storage (LAES) technology that reportedly overcomes the major limitation of LAES systems – their relatively low round-trip efficiency.

"The temperature setting directly affects how much energy your water heater consumes. The higher the temperature, the more energy it needs to maintain that temperature level," said David Miloshev ...

Senate Republicans continued their campaign Thursday to roll back stringent energy regulations that were issued during the ...