A snow-covered two-story house photographed at night during a snowstorm, with one illuminated upstairs window.

Furnace Installation in Red Wing, MN

A new furnace here will run from September through May every year. Tell us about the house, and a licensed contractor who covers Goodhue County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An unfinished basement featuring a grey forced-air furnace with metal ductwork, concrete block walls, exposed wooden joists, and a single hanging bare bulb.

Nine months of heat, and winter lows near 10°F

Red Wing needs a furnace from September through May. That is nine months of the year the burner is doing real work, not just taking the edge off a cold morning. Winter nights average 10°F here, and a furnace sized or installed wrong shows it fast when it's running that much of the year against that kind of cold.

56.1% of homes in the area heat with gas, and any new gas furnace has to meet the federal minimum of 80.0 percent AFUE. Storms are part of the picture too. The area has seen 35 winter storms and 52 damaging wind events over the past ten years, and statewide, 13% of households lost power for at least 24 hours in 2024. A furnace installed well needs to come back on its own once the power does.

9 months
September through May, your furnace is on duty
10°F
the average winter night it heats against
56%
of homes here heat with gas, so most furnaces here burn gas
80% AFUE
the federal minimum any new unit must meet
Isometric cutaway illustration of a single-story house in gray tones, showing interior rooms with furniture, ceiling ductwork, and an exterior furnace unit with a tall flue pipe.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

An unfinished basement containing a metal furnace with ductwork, exposed wooden joists on the ceiling, cardboard boxes, a coiled cable, and a single hanging incandescent bulb.

A high-efficiency gas furnace would save about $110 a year to run in Goodhue County compared with a gas furnace.

  • A high-efficiency gas furnace$500 a year
  • A gas furnace$610 a year

Estimates for a typical Goodhue County home, from EIA household energy data, Minnesota fuel prices and NOAA climate normals. Your home will differ.

Minnesota has no state license for HVAC contractors.

Minnesota leaves this to the local building office instead. In Goodhue County, as in most places, a furnace replacement needs a permit before the work starts and an inspection once it's done. That inspection is what checks the gas connection and venting, the part of the job where a mistake actually puts someone at risk.

So there's no license behind the name on the truck, but there is still a record of the work. The permit ties the installation to an address, and the inspector who signs off is checking that the furnace was hooked up and vented the way it's supposed to be. With most homes in the county heating with gas, that inspection is doing real work here, not just paperwork.

Source: Minnesota Office of the Revisor of Statutes

What size furnace does my house need?
There's no single number that fits every house on your street. Sizing depends on square footage, ceiling height, how much insulation is in the walls and attic, how many windows you have and which way they face, and how airtight the place is. A contractor works this out room by room, not by guessing from square footage alone. Get this wrong and you either burn more gas than you should or the furnace short-cycles and wears out early, so it's worth having someone measure your house rather than matching the old unit's size.
How do I know it's time to replace my furnace?
Watch for rooms that won't hold heat, a furnace that cycles on and off more than it used to, a gas bill that's climbing without a reason, or a repair bill that's getting close to what a new furnace costs. An older furnace works harder to do what it used to do easily, and parts get harder to find. Here, with heat needed from September through May and winter nights averaging 10°F, a furnace that's struggling in the shoulder months usually won't hold up once the cold settles in. If yours is shutting off on its own or you're smelling gas, that's not a wait and see. Call for service now.
Is a high-efficiency furnace worth it?
It depends on how long you plan to stay in the house and what your current furnace is costing you to run. High-efficiency furnaces cost more upfront but use less gas to make the same heat, and with 56.1% of homes in Goodhue County heating with gas, that difference shows up on the bill every month from September through May. Every furnace made since November 2015 has to reach at least 80 percent AFUE by law, so the real question is whether it's worth paying more to get above that floor. A contractor can walk through the numbers for your specific house and furnace.