Furnace Replacement Cost
Most homeowners pay $2,800–$7,500 for a new furnace, about $4,800 on average. Pick a fuel and efficiency to see your range.
Last reviewed September 2026
High-efficiency gas furnaces vent through plastic pipe and drain condensate, so switching from an older 80% unit can add venting work.
Splitting the range by efficiency is our estimate: published guides place standard units toward the low end and high-efficiency units toward the high end. Home size, ductwork and access also move the price.
Furnace prices by fuel type
| Job | Typical cost |
|---|---|
| Typical furnace replacement (average about $4,800) | $2,800–$7,500 |
| Natural gas furnace, installed | $3,800–$10,000 |
| Electric furnace, installed | $1,800–$7,300 |
| Propane furnace, installed | $3,700–$14,200 |
| Oil furnace, installed | $6,700–$10,000 |
Furnace just not lighting? It may be a flame sensor or ignitor repair instead, or a blower motor problem.
Furnace replacement questions
How much does a new furnace cost?
Most homeowners pay about $2,800–$7,500 to replace a furnace, with a national average around $4,800. Natural gas furnaces typically run $3,800–$10,000 installed and electric furnaces $1,800–$7,300.
Is a high-efficiency furnace worth it?
A 90%+ AFUE furnace costs more up front but wastes less fuel than an 80% unit. It pays back fastest in cold climates with long heating seasons and high gas prices.
Should I repair or replace my furnace?
Ignitors, flame sensors, thermostats and blower parts are worth repairing on a furnace under about 15 years old. A cracked heat exchanger, repeated breakdowns or a repair near half the price of a new unit point to replacement.