Newly-manufactured indoor residential gas furnaces will have to be at least 95% efficient starting in late 2028 under a new rule issued by the U.S. Department of Energy (DOE). In an effort to save ...

Derived from the Latin word fornax, meaning oven, a furnace is a large heating appliance designed to evenly distribute heat throughout a building. Furnaces accomplish this by burning fuel internally ...

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 ...

U.S. Steel officials today celebrated the start-up of the company’s first electric arc furnace at Fairfield Works, a $412 million investment it says will eventually produce 1.6 million tons of steel a ...