The U.S. Department of Energy (DOE) issued a request for information to assess whether the existing energy-conservation standards for commercial warm-air furnaces should be amended.

While contractors are admittedly embracing this temporary sense of certainty, they’re still left with more questions than answers.

Most people schedule a preseason tune-up for their air conditioning system before the hot weather starts. If they did the same for their furnaces before the heating season, this complaint could be prevented. 

Industry figures are estimates that are derived from the best available figures supplied by a sample of AHRI member companies.

The forced-air, high-efficiency gas furnace series has models in the range of 30,000-120,000 Btu, all at 92.1 percent AFUE.