96% vs 98% AFUE Furnace: Worth the Upgrade in Minnesota?
A 98% AFUE furnace saves only about 2% more gas than a 96% model. Our condensing furnaces run $6,500–$9,500 installed. See what the extra buys.
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Furnace Replacement in St. Anthony, MN
St. Anthony furnace replacements cost $4,500–$9,500 installed with us, for homes on CenterPoint Energy gas near Silver Lake. An 80% AFUE unit runs about $4,500–$6,000 and a 96–98% condensing unit about $6,500–$9,500. Every quote is written, flat-rate and sized by Manual J.
Furnace replacements 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. The pipes should route clear of the driveway snow pile and the neighbor's windows.
Sizing is the other decision. Many of these houses 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. St. Anthony normally requires a mechanical permit for a furnace replacement.
Updated November 10, 2026
What affects the price of a new furnace in St. Anthony?
What moves the quote in St. Anthony: venting changes on a switch to a condensing furnace, a liner for a water heater left alone in the chimney, and ductwork and returns. 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. Ask us which rebates apply when we quote. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.
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.
Can a new furnace fit the Silver Lake Village utility closet?
Usually, once we measure. We check the closet, the clearances at the door and the route for PVC or the existing flue before quoting. A 96–98% model needs a condensate drain and two pipes to an exterior wall or roof, and the association may need to approve where they exit. If a wall exit isn't allowed, an 80% furnace into the existing flue may be the practical choice.
More in St. Anthony
Signs your furnace needs replacing
- Furnace repair in St. Anthony
- AC repair in St. Anthony
- AC replacement in St. Anthony
- Heat pumps in St. Anthony
- Mini-splits in St. Anthony
- Tune-ups in St. Anthony
- All HVAC service in St. Anthony
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Brands we install and service
Guides on furnace replacement
Furnace Repair Cost in Minnesota (2026)
Furnace repair pricing in Minnesota for 2026: a $79 trip charge waived with the repair, written flat-rate prices, national part costs and when to replace.
Read the guideFurnace Blower Motor Replacement Cost: PSC vs ECM
A furnace blower motor typically runs $500–$1,400 (PSC) or $800–$2,300 (ECM) nationally, per HomeGuide. What to rule out first, and when to replace.
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