Cost of furnace replacement in Kansas (KS)
A 80,000 BTU furnace installed
$4,800to $7,200
That is a standard 80% AFUE model, the federal minimum and what most replacements are. A 96% condensing furnace runs $5,800 to $8,800.
Is the efficient one worth it here?
Costs more
$1,300
Saves a year
$366
Pays back in
3.5 yrs
Kansas burns enough gas over a winter for the efficiency to earn its premium back well inside the furnace's life. At $2.42 a therm and 4,800 heating degree days, the condensing model is the better buy.
Before you replace like for like
A furnace is not the only option. A heat pump does the same job using electricity, and in some states costs less to run — it depends on the gap between gas and electricity prices where you live, which is not the same everywhere.
Compare both in KansasCommon questions
How much does it cost to replace a furnace in Kansas?
Between about $4,800 and $7,200 installed for a standard 80% AFUE furnace, or $5,800 to $8,800 for a 96% condensing model. A 1,800 square foot home in Kansas needs roughly 80,000 BTU of output.
Is a high-efficiency furnace worth it in Kansas?
Yes. The condensing model costs about $1,300 more and saves roughly $366 a year on gas at Kansas prices, so it repays itself in about 3.5 years — well inside the life of the furnace.
What size furnace do I need?
About 80,000 BTU for 1,800 square feet in Kansas's climate — roughly 44 BTU per square foot, which reflects 4,800 heating degree days a year. Colder states need more output for the same house.
More for Kansas
Everything in Kansas
All five figures at once
Energy rates in Kansas
What power and gas cost
Average electric bill in Kansas
What households pay
Cost to run AC in Kansas
Per hour and per year
Cost to heat a home in Kansas
Gas vs heat pump
Heat pump cost in Kansas
To install, and vs a furnace
Solar payback in Kansas
Whether panels pay off
Sizing from Kansas's heating degree days for a 1,800 square foot home. Gas price from the US Energy Information Administration, 2026-05. Installed costs are a national estimate spread ±20% — ductwork, venting runs and your region move real quotes more than the furnace itself does. Get three.