60,000 BTU Gas Furnaces

Replacing an older 60,000 BTU furnace

A furnace from 15 or 20 years ago likely runs at 80% AFUE or lower, so a new unit at the same BTU can cut fuel use noticeably — and stepping up to a condensing 90%+ model saves more, though it changes the venting to PVC and adds a condensate drain. It's also the moment to confirm the new blower matches your cooling coil and that the ductwork is in good shape.

• Efficiency jump — a new furnace beats a decade-old one on fuel, more so if you go condensing.
• Venting change — moving to 90%+ means PVC venting and a condensate drain.
• Coil & blower match — confirm the new blower suits your AC coil and airflow.
• Duct check — a replacement is a good time to verify ducts aren't leaking or undersized.

Replacing a 60,000 BTU furnace? We'll help you match efficiency, venting, and blower →