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 Nowthen, MN
Furnace replacement on a Nowthen propane or gas lot runs $4,500–$9,500 installed. Every quote is flat-rate and on paper, sized by Manual J, with controls that can run alongside a Connexus dual-fuel heat pump.
Furnace replacements in Nowthen homes
Replacements here cover 1970s and 80s houses that have already used up two furnaces and 1990s and 2000s two-stories reaching the end of their first, on propane or natural gas. A propane furnace ships as an LP model or takes the manufacturer's conversion kit, and its gas pressure is set to the LP spec. A 96–98% model vents through PVC and needs a condensate drain, so the vent route and the drain go into the plan before the quote.
If the house has a heat pump on Connexus Energy's dual-fuel rate, the furnace is the backup the program depends on. Connexus wants that backup to come on by itself when the thermostat calls and to be able to warm the house for as long as 400 hours, so it has to be sized for the whole house, and its blower and controls have to match the heat pump's coil and dual-fuel thermostat. Air sealing done beforehand can shrink the furnace a Manual J calls for.
Updated November 10, 2026
What affects the price of a new furnace in Nowthen?
By efficiency: 80% AFUE roughly $4,500–$6,000; 96–98% AFUE roughly $6,500–$9,500. See the furnace replacement cost guide.
Furnace replacement in Nowthen: questions
Can we replace just the propane furnace and keep the heat pump at our Nowthen house?
Usually, if the heat pump is in good shape. The new furnace's blower has to deliver the airflow the heat pump's indoor coil needs, and its controls have to work with the dual-fuel thermostat or control that decides which one runs. We check the coil's size and condition and the heat pump's age first. If the heat pump is near the end of its life too, replacing both at once may cost less than two separate visits.
Should the new furnace in our Nowthen house draw its combustion air from outside?
Usually, yes. A 96–98% furnace with a two-pipe, sealed-combustion setup takes combustion air through one PVC pipe from outdoors and exhausts through the other, so it doesn't compete for air with a wood stove, a clothes dryer or bath fans. That matters in a Nowthen house with a wood stove, where a basement starved of air can pull smoke back into the room. It also keeps the furnace from drawing cold outside air into the house through gaps.
More in Nowthen
Signs your furnace needs replacing
- Furnace repair in Nowthen
- AC repair in Nowthen
- AC replacement in Nowthen
- Heat pumps in Nowthen
- Mini-splits in Nowthen
- Tune-ups in Nowthen
- All HVAC service in Nowthen
Furnace replacement near Nowthen
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Brands we install and service
Guides on furnace replacement
Furnace Blowing Cold Air: What to Check, in Order
Cold air at the registers with the heat on? The order a technician checks, from fan setting to flame sensor and PVC pipes, and our $79 trip charge.
Read the guideGoodman Furnace Error Codes and Blinking Lights
Goodman and Amana furnace error codes from Goodman's own service manuals: how to read the display safely, what E0, E1, E2 and others mean, and when to call.
Read the guideContact Us
Heat out? AC quit? Call or send a request.