How Long Does a Furnace Replacement Take?
A straight furnace swap is usually done in one day. Venting changes, a chimney liner, gas line or duct work, and the permit inspection add time. What to expect.
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Furnace Replacement in Cologne, MN
Plan on $4,500–$9,500 installed to replace a furnace in Cologne: about $4,500–$6,000 for 80% and $6,500–$9,500 for 96–98%. We quote flat-rate and in writing after a Manual J, and in the original town's older houses, the shared chimney and water heater get their own line in that quote.
Furnace replacement calls in Cologne homes
Cologne's older houses and its newer subdivisions need different replacements. In the original town, a basement furnace venting into a chimney shared with the water heater is the norm. Moving to a 96–98% furnace takes the furnace off the chimney, adds PVC out a side wall and a condensate drain, and leaves the water heater needing a liner or a power-vent replacement. On small lots, the side-wall exit also has to clear windows, doors and the neighbor's house by the distances the manufacturer and code require, which can push the vent to the roof.
The homes built since the 2000s already have PVC and usually an air exchanger. Their builder furnaces may be oversized, so a Manual J often supports a smaller two-stage unit. Gas here is CenterPoint Energy, whose heating system rebates cover qualifying high-efficiency furnaces from any dealer you choose. The mechanical permit is part of our quote.
Updated September 23, 2026
How much does a new furnace cost in Cologne?
An installed furnace from us runs about $4,500–$9,500 in Cologne: 80% AFUE roughly $4,500–$6,000, 96–98% AFUE roughly $6,500–$9,500. Same prices in Cologne as in every town we serve. See the furnace replacement cost guide.
Are there rebates for a new furnace in Cologne?
Cologne is on CenterPoint Energy gas and Xcel Energy electric. CenterPoint pays heating rebates on qualifying high-efficiency furnaces and boilers, and it also rebates programmable, Wi-Fi and smart thermostats. On the Xcel side, ask about heat pump and cooling rebates, and whether the one you want needs a registered contractor. Xcel's AC Rewards program pays an annual reward for letting a connected smart thermostat ease back your AC on peak afternoons, and Saver's Switch trades AC cycling for bill savings. 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 Cologne: questions
Who handles furnace rebates in Cologne, and what do they require?
CenterPoint Energy supplies Cologne's natural gas, and its heating system rebates cover qualifying high-efficiency furnaces, boilers and combination systems. You can use the dealer of your choice, the equipment has to be AHRI- or ENERGY STAR-listed with verified AFUE, and the application goes in the same calendar year as the install. A quote doesn't count as proof of purchase. We help with the paperwork.
Our 2000s Cologne home still has its original furnace. Should we replace it before it fails?
Not automatically. A 20-year-old high-efficiency furnace with a sound heat exchanger and no recurring faults can keep going. Plan the replacement rather than waiting for January: get a written quote, have the condensate and vent parts checked at the next tune-up, and watch for repeated pressure-switch or ignition lockouts. A cracked heat exchanger or a second major failure is when we'd recommend replacing it.
More in Cologne
Furnace replacement near Cologne
- Waconia, MN 5 mi
- Norwood Young America, MN 7 mi
- Carver, MN 8 mi
- Victoria, MN 8 mi
- Chaska, MN 9 mi
- Mayer, MN 10 mi
Brands we install and service
Guides on furnace replacement
What Is a Furnace Inducer Motor, and What Are the Signs It's Failing?
The inducer motor is the small fan that starts first and pushes exhaust out the vent. Noises and codes of a failing one, repair vs replace, and cost.
Read the guideHow Long Does a Furnace Last in Minnesota?
How long a furnace lasts in Minnesota: sourced 15–20 year figures, why long winters add wear, signs it's near the end, and how to decide repair or replace.
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Furnace replacement in Cologne? Call or send a request.