How Long Does a Furnace Replacement Take?
Most furnace replacements take one day; venting, a chimney liner, gas line or duct work can add a second. Ours run $4,500–$9,500 installed. Call 612-429-3465.
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Furnace Replacement in Green Isle, MN
Installed furnaces in Green Isle run $4,500–$9,500 with us, from roughly $4,500 for an 80% model to $9,500 for a 96–98% condensing unit. Farms outside town on propane get the LP setup in the same written, flat-rate quote.
Furnace replacements in Green Isle homes
Most in-town Green Isle replacements are basement swaps on Xcel Energy gas, and the ductwork is the first question. Ducts that have outlived several furnaces get a static pressure test, because a new variable-speed blower can make up for a lot but not for a crushed return. Moving from an 80% furnace to a 96% model brings PVC venting through the rim joist and a condensate drain, and often a liner for the water heater left in the old chimney. Xcel's heating equipment rebates cover qualifying high-efficiency gas furnaces; ask whether a registered contractor is required.
On farms outside town, the new furnace is usually propane, set up with its LP kit and checked for gas pressure at startup. Because propane usually costs more per unit of heat, a 96% furnace pays back faster there. In a small city or township the office that issues the mechanical permit varies, so confirm which one covers your address.
Updated October 27, 2026
What affects the price of a new furnace in Green Isle?
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 Green Isle?
A high-efficiency furnace rebate runs through Xcel's heating equipment rebates; ask whether it needs a registered contractor. A propane furnace generally won't qualify for a gas utility rebate, but a heat pump on either electric provider can. 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 Green Isle: questions
We heat our farmhouse near Green Isle with propane. Should the new furnace be paired with a heat pump?
It's worth pricing. A cold-climate heat pump carries the house through fall, spring and milder winter days, cutting propane use, and the new furnace takes over when it gets bitterly cold. The pair shares one set of ducts and one thermostat. Heat pumps run $7,500–$14,500 installed with us. Check with Xcel Energy or Minnesota Valley Electric Cooperative, whichever serves the farm, about current heat pump programs first.
The addition on our Green Isle farmhouse never heats well. Will a new furnace fix it?
Probably not by itself. Additions are usually the last stop on the ductwork, with a long run, a small supply and no return, and some sit over a crawlspace or slab with less insulation. A new furnace with a variable-speed blower helps a little. The real fix is a better duct run and a return, or a ductless head that heats and cools the addition on its own. We check before quoting either.
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Brands we install and service
Guides on furnace replacement
Lennox Furnaces Compared: Merit, Elite and Signature
Lennox Merit, Elite and Signature furnaces overlap more than the names suggest. Learn to decode a model number; our 96–98% AFUE installs run $6,500–$9,500.
Read the guide96% 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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