Collection: Gas, Electric & Oil Furnaces

The furnace is the heating stage of a forced-air system. Shop gas furnaces, electric furnaces, and oil furnaces across BTU inputs from roughly 40,000 to 120,000 and AFUE ratings from 80% to 96%+, in upflow, downflow, and multi-position cabinets.

Size to a Manual J load calculation and match the cabinet width to your coil and blower requirements. Condensing (90%+ AFUE) furnaces vent through PVC and require a condensate drain; non-condensing models vent through metal or masonry. Spec sheets and warranty documents are on each product page.

Furnace FAQs

What does AFUE mean? Annual Fuel Utilization Efficiency — the share of fuel converted to usable heat over a season. A 96% AFUE furnace delivers 96 cents of heat per fuel dollar.

Does it include a coil or condenser? No — the furnace is sold on its own; the cased coil and outdoor unit are separate.

Upflow, downflow, or horizontal? Confirm the orientation your installation requires; many models are multi-position.