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 Loretto, MN
A new furnace in Loretto runs $4,500–$9,500 installed with us. Most houses in town are small one-story or story-and-a-half homes, so a Manual J load calculation often calls for a smaller furnace than the one coming out. Your quote is written, flat-rate and itemized.
Furnace replacements in Loretto homes
Replacement in Loretto usually means a small house on its second or third furnace, and the first question is venting. In the early-1900s homes, the old furnace often shares a masonry chimney with the gas water heater. A 96–98% condensing furnace vents through PVC out a side wall instead, which can strand the water heater in a chimney now too big for it, and that needs a liner or another venting plan written into the price. Postwar ramblers with a metal flue may make an 80% swap simple.
Sizing matters more than people expect in small houses. An oversized furnace short-cycles and swings the temperature. We run a Manual J and look hard at the duct system, which in Loretto is often the weakest link. CenterPoint Energy supplies gas in town and offers heating system rebates on qualifying high-efficiency furnaces. A furnace replacement in Loretto normally needs a mechanical permit, and since the city is surrounded by Medina, confirm which city your address actually sits in.
Updated October 27, 2026
What affects the price of a new furnace in Loretto?
By efficiency: 80% AFUE roughly $4,500–$6,000; 96–98% AFUE roughly $6,500–$9,500. See the furnace replacement cost guide.
Are there rebates for a new furnace in Loretto?
CenterPoint's heating rebates cover high-efficiency furnaces, boilers and thermostats, with any dealer. 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 Loretto: questions
Can a new furnace in Loretto use our old ductwork?
Usually, after some repair. Original trunk lines in Loretto often have open joints and a crushed branch or two, and those leaks waste the efficiency you're paying for. We measure static pressure before quoting, seal the joints we can reach, and replace damaged branches. If the return is too small for the new blower, we say so in the quote, since that decides whether the new furnace runs quietly.
The upstairs bedrooms in our Loretto story-and-a-half stay cool all winter. Will a new furnace help?
Not much by itself. In a story-and-a-half, the upstairs often gets one small supply run up a wall cavity and no return, and the knee walls and roof slopes lose heat fast. A right-sized two-stage furnace runs longer and helps a little. The real gains come from a return path, sealing the knee walls or a ductless head, and we price those with the furnace.
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Brands we install and service
Guides on furnace replacement
How Long Does a Furnace Last in Minnesota?
Most gas furnaces last 15–20 years, per Carrier and Lennox. See why Minnesota winters add wear, the end-of-life signs and our $4,500–$9,500 replacement range.
Read the guideBryant Evolution vs Legacy Furnaces: What You Pay For
Bryant's Evolution 987M modulates; Legacy furnaces are single-stage. What that means in a Minnesota winter, how warranties compare, and where Preferred fits.
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