How Long Does a Furnace Replacement Take?
A straight furnace swap is usually done in one day. Venting changes, a chimney liner, gas line or duct work, and the permit inspection add time. What to expect.
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Furnace Replacement in Nowthen, MN
Replacing a furnace in Nowthen costs $4,500–$9,500 installed with us, propane or natural gas, with 80% models around $4,500–$6,000 and 96–98% models around $6,500–$9,500. Every quote is flat-rate and on paper, sized by Manual J, with controls that can run alongside a Connexus dual-fuel heat pump.
Furnace replacement calls in Nowthen homes
Replacements here cover 1970s and 80s houses that have already used up two furnaces and 1990s and 2000s two-stories reaching the end of their first, on propane or natural gas. A propane furnace ships as an LP model or takes the manufacturer's conversion kit, and its gas pressure is set to the LP spec. A 96–98% model vents through PVC and needs a condensate drain, so the vent route and the drain go into the plan before the quote.
If the house has a heat pump on Connexus Energy's dual-fuel rate, the furnace is the backup the program depends on. Connexus wants that backup to come on by itself when the thermostat calls and to be able to warm the house for as long as 400 hours, so it has to be sized for the whole house, and its blower and controls have to match the heat pump's coil and dual-fuel thermostat. Air sealing done beforehand can shrink the furnace a Manual J calls for.
Updated September 26, 2026
How much does a new furnace cost in Nowthen?
An installed furnace from us runs about $4,500–$9,500 in Nowthen: 80% AFUE roughly $4,500–$6,000, 96–98% AFUE roughly $6,500–$9,500. Same prices in Nowthen as in every town we serve. See the furnace replacement cost guide.
Are there rebates for a new furnace in Nowthen?
Connexus Energy supplies electricity across Nowthen, so its programs apply citywide: heat pump rebates (air-source, ductless and ground-source), a central AC rebate, a reduced-rate dual-fuel program that accepts a propane, natural gas or oil furnace as backup, and the Wi-Fi PowerNap program. Check whether each rebate calls for a registered contractor. Homes with natural gas should check the gas company on their bill for furnace rebates. The state's HEAR and HOMES rebates are still not open in Minnesota. 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 Nowthen: questions
Can we replace just the propane furnace and keep the heat pump at our Nowthen house?
Usually, if the heat pump is in good shape. The new furnace's blower has to deliver the airflow the heat pump's indoor coil needs, and its controls have to work with the dual-fuel thermostat or control that decides which one runs. We check the coil's size and condition and the heat pump's age first. If the heat pump is near the end of its life too, replacing both at once may cost less than two separate visits.
Should the new furnace in our Nowthen house draw its combustion air from outside?
Usually, yes. A 96–98% furnace with a two-pipe, sealed-combustion setup takes combustion air through one PVC pipe from outdoors and exhausts through the other, so it doesn't compete for air with a wood stove, a clothes dryer or bath fans. That matters in a Nowthen house with a wood stove, where a basement starved of air can pull smoke back into the room. It also keeps the furnace from drawing cold outside air into the house through gaps.
More in Nowthen
Furnace replacement near Nowthen
- Ramsey, MN 5 mi
- St. Francis, MN 5 mi
- Oak Grove, MN 6 mi
- Elk River, MN 6 mi
- Dayton, MN 7 mi
- Otsego, MN 9 mi
Brands we install and service
Guides on furnace replacement
Furnace and AC Replacement Cost in Minnesota: Together or Separately?
Replacing the furnace and AC together in Minnesota costs $9,700–$19,300 installed with us. Matched coils, AHRI ratings, and when to split the job instead.
Read the guideOil to Natural Gas Conversion in Minnesota: Steps, Costs and Gotchas
Converting an oil furnace or boiler to gas in Minnesota: typical national costs, getting gas to the house, venting, the oil tank, hot water and rebates.
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Furnace replacement in Nowthen? Call or send a request.