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 St. Anthony, MN
St. Anthony furnace replacements cost $4,500–$9,500 installed with us: around $4,500–$6,000 for an 80% AFUE unit and $6,500–$9,500 for a 96–98% condensing unit. CenterPoint Energy supplies the gas and lets you use the dealer of your choice for its furnace rebates. The written, flat-rate quote comes after a Manual J.
Furnace replacement calls in St. Anthony homes
Most St. Anthony replacements put a new furnace into a house built between 1946 and 1965, and the first decision is venting. Staying with an 80% furnace keeps the chimney, which then needs an inspection and often a liner. Going to 96–98% moves the furnace to PVC through a side wall, and the water heater left alone in the chimney needs a liner sized for it or a power-vent model. We route the pipes clear of the driveway snow pile and the neighbor's windows.
Sizing is the other decision. Many have picked up attic insulation and newer windows over the decades, so a Manual J often lands smaller than the old nameplate, and the original ducts limit how much air any new blower can move. At Silver Lake Village, the replacement has to fit the existing space and vent path. CenterPoint's heating rebates require an AHRI- or ENERGY STAR-listed furnace and an application in the same calendar year as the install. We handle the permit.
Updated September 26, 2026
How much does a new furnace cost in St. Anthony?
An installed furnace from us runs about $4,500–$9,500 in St. Anthony: 80% AFUE roughly $4,500–$6,000, 96–98% AFUE roughly $6,500–$9,500. Same prices in St. Anthony as in every town we serve. See the furnace replacement cost guide.
Are there rebates for a new furnace in St. Anthony?
St. Anthony homes are CenterPoint Energy gas customers and Xcel Energy electric customers. CenterPoint rebates high-efficiency furnaces and boilers whichever dealer installs them, and its ducted heat pump rebate only covers a heat pump teamed with a gas furnace. Some of Xcel's AC and heat pump rebates require a registered contractor, so check before you sign. The city's home-energy page also points residents to Home Energy Squad visits, and its Energy Action Plan was written with Xcel's Partners in Energy program. 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 St. Anthony: questions
Our St. Anthony house still has its original gas piping. Will a new furnace need a bigger gas line?
Usually not for the furnace alone. A replacement with the same or lower input than the old furnace normally runs fine on the existing pipe, and a condensing furnace needs less input for the same heat. The pipe matters when you add load, such as a gas dryer, range, fireplace or garage heater. We check the pipe size and length against everything on the line during the quote, and any changes go in the written price.
We want a heat pump with the new furnace in our St. Anthony house. Which rebates can apply?
Possibly several. CenterPoint Energy's heating rebates cover the high-efficiency furnace, and its ducted air-source heat pump rebate applies because the heat pump is paired with a gas furnace. Xcel Energy, your electric utility, has its own heat pump rebates, paid through Trade Partner Network contractors. Each program sets its own rules on combining and paperwork, so check them before counting on a total. We provide the model numbers and matched-system details the forms ask for.
More in St. Anthony
- Furnace repair in St. Anthony
- AC repair in St. Anthony
- AC replacement in St. Anthony
- All HVAC service in St. Anthony
Furnace replacement near St. Anthony
- Columbia Heights, MN 2 mi
- New Brighton, MN 3 mi
- Falcon Heights, MN 3 mi
- Roseville, MN 3 mi
- Arden Hills, MN 4 mi
- Minneapolis, MN 4 mi
Brands we install and service
Guides on furnace replacement
Furnace Noises: What Each Sound Means and When to Shut It Off
Bang at startup, squeal, scrape, rattle, hum, click, whistle or a rumble after shutoff: what each furnace noise means and whether it's safe to keep running.
Read the guideFurnace Short Cycling: Time the Cycle, Then Find the Cause
A furnace that turns on and off too often tells you what's wrong by how long it runs. How to time a cycle, and what seconds, minutes and frequent cycles mean.
Read the guideContact Us
Furnace replacement in St. Anthony? Call or send a request.