96% vs 98% AFUE Furnace: Is the Upgrade Worth It in Minnesota?
What AFUE measures, the gas math from 80% to 96% to 98% using your own bill, and what a 98% furnace really buys you in a cold Minnesota house.
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Furnace Replacement in Cokato, MN
Cokato's in-town homes burn CenterPoint natural gas, while most farms around it run propane, where a 96–98% furnace (roughly $6,500–$9,500) pays back faster because the fuel usually costs more per unit of heat. Our replacements run $4,500–$9,500 installed, sized with a Manual J and written as a flat price.
Furnace replacement calls in Cokato homes
In town, a Cokato furnace replacement usually means an older furnace coming out of a chimney it shares with the water heater, in an early-1900s house or a 1960s–90s rambler. A 96–98% furnace needs PVC out a side wall and a condensate drain, and the water heater left behind needs a correctly sized liner or a power-vent model. Field Crest's newer homes already have PVC and mostly need a furnace sized right and matched to it.
On farmsteads, propane changes both the math and the setup. The new furnace has to be converted for propane and checked at the gas valve, and a sealed-combustion model solves the combustion-air problems that tightened farmhouses create. Additions spliced onto one duct run are worth fixing while the furnace is out. CenterPoint Energy's heating system rebates cover qualifying furnaces for in-town gas customers, while on propane the case for 96% rests on fuel savings. Permit rules can differ for rural addresses, and we sort out which one applies.
Updated September 23, 2026
How much does a new furnace cost in Cokato?
An installed furnace from us runs about $4,500–$9,500 in Cokato: 80% AFUE roughly $4,500–$6,000, 96–98% AFUE roughly $6,500–$9,500. Same prices in Cokato as in every town we serve. See the furnace replacement cost guide.
Are there rebates for a new furnace in Cokato?
Gas furnace rebates in town come from CenterPoint Energy, which lets you use the dealer of your choice and wants the application filed in the same year as the install. On the electric side, most of Cokato is Xcel Energy, which offers heat pump and cooling rebates, so ask whether the one you want needs a registered contractor. Field Crest homes are on Wright-Hennepin, which lists air-source heat pump rebates paid as a bill credit. On propane farms the gas utility's furnace rebate generally won't apply, but an electric provider's heat pump rebate still can. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.
Signs it's time to replace your furnace
- A cracked heat exchanger on a furnace that's out of warranty
- The furnace is 20-plus years old and needs another major repair
- Rooms far from the furnace never warm up on sub-zero nights
- Gas bills climbing while your thermostat settings haven't changed
- Repair calls two or more winters in a row
- A burner roar or blower noise you can hear across the house
- Replacement parts for your model are getting hard to find
More detail on our furnace installation page.
Furnace replacement in Cokato: questions
Is a sealed-combustion furnace worth it in our tightened-up Cokato farmhouse?
In most cases, yes. A sealed-combustion (direct-vent) furnace draws its combustion air through a PVC pipe from outdoors instead of from the house, so bath fans, the dryer and the range hood can't pull its exhaust back inside. It also stops the furnace from drawing cold outside air in through the house's leaks. The water heater may still need attention if it's atmospheric, and we test its draft too.
Do we need a permit to replace a furnace on a farm outside Cokato?
A furnace replacement normally needs a mechanical permit, issued by the city or, where there's no local building department, the county or state. Rural addresses outside city limits can fall under a different office than in-town homes, so we confirm which one covers your property and pull that permit. The inspection looks at gas piping, venting and clearances. Keep the permit record with your house papers for when you sell.
More in Cokato
Furnace replacement near Cokato
- Howard Lake, MN 6 mi
- Winsted, MN 10 mi
- Waverly, MN 11 mi
- Silver Lake, MN 12 mi
- Annandale, MN 13 mi
- Montrose, MN 14 mi
Brands we install and service
Guides on furnace replacement
Furnace Burning Smell in a Minneapolis Home: What Each Smell Means
Dust, hot plastic, rotten eggs or exhaust: what each furnace smell means, which mean shut it off now, and the basement causes we find in Minneapolis homes.
Read the guideWhat Does It Mean When a Furnace Is Red-Tagged?
A red tag means a technician or the gas utility found your furnace unsafe and shut it off. Common reasons, what not to do, and how to get a second opinion.
Read the guideContact Us
Furnace replacement in Cokato? Call or send a request.