Furnace Cost by State (2026): $4,500–$10,500
HomeScore furnace planning range, disclosed scope and quote checklist, plus state cost guides for an installed 80k–100k BTU gas furnace.
One disclosed furnace planning method
Plan $4,500–$10,500 for an installed 80k–100k BTU gas furnace, using $6,800 as the midpoint. Installed HomeScore planning range for an 80k–100k BTU gas furnace with professional labor, standard materials, startup and permit/inspection allowance. Major ductwork, asbestos or mold remediation, structural work and fuel conversion are outside the range.
Make furnace quotes comparable
- Equipment make, model, input/output BTU and AFUE
- Equipment price separated from labor and standard materials
- Venting, condensate, gas-line, electrical, thermostat and duct changes itemized
- Permit, inspection, disposal, startup and commissioning responsibility
- Explicit exclusions plus a 10–15% homeowner contingency held outside the signed base bid
ENERGY STAR and DOE support the AFUE definition and efficiency comparison; they do not support HomeScore's dollar range.
Furnace cost by state
- Alabama furnace cost
- Alaska furnace cost
- Arizona furnace cost
- Arkansas furnace cost
- California furnace cost
- Colorado furnace cost
- Connecticut furnace cost
- Delaware furnace cost
- Florida furnace cost
- Georgia furnace cost
- Hawaii furnace cost
- Idaho furnace cost
- Illinois furnace cost
- Indiana furnace cost
- Iowa furnace cost
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- New Mexico furnace cost
- New York furnace cost
- North Carolina furnace cost
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- Pennsylvania furnace cost
- Rhode Island furnace cost
- South Carolina furnace cost
- South Dakota furnace cost
- Tennessee furnace cost
- Texas furnace cost
- Utah furnace cost
- Vermont furnace cost
- Virginia furnace cost
- Washington furnace cost
- West Virginia furnace cost
- Wisconsin furnace cost
- Wyoming furnace cost
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