Our 80% AFUE upflow and horizontal gas furnaces deliver dependable heating performance in a metal-vented, non-condensing design that’s ideal for traditional venting systems using galvanized or B-vent pipe.

The AFUE (Annual Fuel Utilization Efficiency) rating measures how efficiently a furnace converts fuel into heat. An 80% AFUE furnace converts 80% of its fuel into usable heat for your home, while about 20% is lost through exhaust.

These furnaces are built for long-term reliability, quiet operation, and straightforward installation. The upflow and horizontal left and right airflow configurations provide flexibility for basements, attics, and crawlspaces.

Budget Heating & Air Conditioning offers factory-direct pricing, expert technical guidance, and nationwide delivery on all 80% AFUE metal-vented furnaces.