Best Furnace Brands for Minnesota Winters (2026)
Furnace brands for a Minnesota winter by tier: Carrier, Trane, Lennox, Rheem, Goodman and Amana lines, plus what matters more at -20°F than the badge.
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Furnace Replacement in Saint Paul, MN
Replacing a furnace in Saint Paul costs $4,500–$9,500 installed with us: about $4,500–$6,000 for an 80% AFUE model and $6,500–$9,500 for a 96–98% condensing one. The quote is written and flat-rate, sized by a Manual J load calculation, and it includes the Department of Safety and Inspections permit the city requires.
Furnace replacement calls in Saint Paul homes
Venting drives most Saint Paul furnace quotes. A 96–98% furnace exhausts through PVC out a side wall, and on narrow city lots the termination has to clear windows, doors and the gas meter by the distances in the manufacturer's instructions, often with the next house only a few feet away. When the old 80% furnace leaves the brick chimney, the water heater is left alone in a flue sized for two appliances, and it usually needs a liner or a power-vent replacement. Sizing matters as much. Houses that began on gravity heat often carry furnaces far bigger than the load, and a Manual J on a 1920s bungalow with newer windows and attic insulation regularly comes out smaller.
Xcel Energy supplies both gas and electricity here, and its heating equipment rebates include high-efficiency gas furnaces; some Xcel measures require a participating contractor, so ask before you count on one. The Department of Safety and Inspections (DSI) issues the mechanical permit. We pull it and schedule the inspection.
Updated September 23, 2026
How much does a new furnace cost in Saint Paul?
An installed furnace from us runs about $4,500–$9,500 in Saint Paul: 80% AFUE roughly $4,500–$6,000, 96–98% AFUE roughly $6,500–$9,500. Same prices in Saint Paul as in every town we serve. See the furnace replacement cost guide. For what drives a quote locally, see HVAC cost in Saint Paul.
Are there rebates for a new furnace in Saint Paul?
In Saint Paul, Xcel Energy is both the gas and the electric utility, and its rebate list includes gas boilers as well as furnaces, which matters in a city with this many radiator systems. Condensing boilers are where boiler rebates usually apply; steam boilers may not reach the required efficiency, so ask before counting on one. Ductless and mini-split heat pumps used to cool radiator homes have their own Xcel rebates, and some Xcel rebates require a registered contractor, so check that before choosing equipment. 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 Saint Paul: questions
Our Saint Paul house heats with hot-water radiators. Should we switch to a furnace when the boiler goes?
Usually not. Running supply and return ducts through plaster walls in a 1910s house is slow, messy and expensive, and radiators give quiet, even heat. A failing hot-water boiler can go to a modulating condensing boiler sized to the radiators; a steam system needs a new steam boiler. For cooling, ductless heads or a small-duct high-velocity system avoid the ductwork problem. A furnace makes more sense for an addition or a house that already has partial ducts.
Why does asbestos come up when we replace an old furnace in Saint Paul?
Houses built before 1950 often have asbestos in the heating system: paper tape on duct seams, insulation on an old gravity furnace or its plenum, and wrap on boiler piping. Left intact it is usually stable, but a furnace swap means cutting and moving those pieces. Suspect material has to be tested first, and if it contains asbestos, a licensed abatement contractor removes or encapsulates it before we start. We point it out when we quote.
More in Saint Paul
- Furnace repair in Saint Paul
- AC repair in Saint Paul
- AC replacement in Saint Paul
- Heat pumps in Saint Paul
- Mini-splits in Saint Paul
- Boiler service in Saint Paul
- Tune-ups in Saint Paul
- HVAC cost in Saint Paul
- All HVAC service in Saint Paul
Furnace replacement near Saint Paul
- West St. Paul, MN 3 mi
- Maplewood, MN 5 mi
- Roseville, MN 5 mi
- Falcon Heights, MN 5 mi
- South St. Paul, MN 5 mi
- Little Canada, MN 5 mi
Brands we install and service
Guides on furnace replacement
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Furnace replacement in Saint Paul? Call or send a request.