: Ideal for homes without natural gas access; it requires an on-site storage tank.

: The most popular and cost-effective for operation. It requires a gas line and venting, heating homes faster than electric models.

The best choice usually depends on your local energy costs and existing home infrastructure.

Buying a new furnace is a major investment, with total costs for a standard 2026 installation typically ranging from , though high-efficiency systems can exceed $11,500 . 1. Choose Your Fuel Source

Efficiency is measured by (Annual Fuel Utilization Efficiency). A higher AFUE means less wasted fuel and lower monthly bills.

: Lower initial cost; best for milder climates.

: Common in colder regions like the Northeast; provides powerful heat but requires regular maintenance and on-site fuel storage. 2. Determine Efficiency (AFUE)

: Lowest upfront cost ($2,500–$7,000 installed) but significantly higher monthly bills, especially in cold climates. They are quieter and safer as they don't produce carbon monoxide.