What a Furnace Inspection Covers, and Why Each Check Matters
What a technician checks on a furnace inspection in Minnesota, from gas pressure to the heat exchanger. It is part of our $129 tune-up, or $219 with the AC.
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Chaska tune-ups cost $129 for a furnace or an AC and $219 for both. In Jonathan's closet-furnace townhomes, we also check that the louvered door still lets combustion air in.
Chaska has three kinds of equipment, and a tune-up differs for each. In downtown's brick houses, furnaces sit in small basements beside coal-era chimneys, so we check the draft, the flue connector and rust at the base of the cabinet and water heater, and we look at the basement's moisture. Jonathan's townhomes put the furnace in a closet, which leaves little room to work around it.
In the newer ring off Highway 212, builder furnaces are 20 years old. We test the inducer, igniter, flame sensor and pressure switch, and check the PVC vents for drifted snow. On the air-conditioner side, townhome condensers packed a few feet apart recirculate each other's hot air, so we check clearances and the temperature split. Matted coils get a gentle rinse before the first hot week.
Updated November 10, 2026
Each $129 visit covers cleaning, a safety and carbon monoxide check and a written report. Boilers, heat pumps and mini-splits fall in our $129–$349 maintenance range, confirmed when you book.
A gas furnace needs air to burn, and a closet furnace usually gets it through a louvered door or vents. If that door is replaced with a solid one or the closet fills with boxes, the furnace can starve for air and shut down or burn poorly. At the tune-up we check the opening, the vent and the flame.
Once a year before the heating season. Older masonry chimneys, damp basements and long-running furnaces mean rust, poor draft and a worn heat exchanger can build quietly. The tune-up checks the vent run and flue draft and includes a carbon monoxide reading. Minnesota law also requires a working CO alarm within 10 feet of every bedroom.
Signs your system is overdue for a tune-up
What a technician checks on a furnace inspection in Minnesota, from gas pressure to the heat exchanger. It is part of our $129 tune-up, or $219 with the AC.
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