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 ...
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 ...