The concept of the “high-efficiency furnace” in popular consciousness dates back to the 1980s. That’s when the National Appliance Energy Conservation Act of 1987 required all new furnaces be 78 ...

The most energy-efficient heating systems for maximum home comfort include heat pumps, geothermal systems, and high-efficiency condensing furnaces. Each option reduces energy consumption while ...

Nearly half of all U.S. households rely on gas or propane furnaces to stay warm. But for those homes, the rules of home heating are about to change. By late 2028, a new federal mandate from the U.S.