What's Normal When You First Turn On the Furnace in Fall
Turning the furnace on this fall? What to do before the start-up, which smells and sounds are normal, and the filter, humidifier and CO alarm steps.
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Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Chanhassen (Carver County), about 15 miles from downtown Minneapolis.
Chanhassen went from a farm village around St. Hubertus church to a city of about 26,000, and most of its homes were built after 1980 around lakes like Lotus, Ann, Susan and Minnewashta.
Chanhassen has two electric utilities, Xcel Energy and Minnesota Valley Electric Cooperative, and the city publishes a map showing which one serves each area.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: Lotus Lake · Lake Ann · Lake Minnewashta Regional Park · Minnesota Landscape Arboretum · Paisley Park
Book in ChanhassenChanhassen's building history reads in rings. The old village and the surrounding township merged into one city in 1967, and the first wave after that brought split-levels and ramblers near Lotus Lake and the village center. Those split-levels run one trunk line to three or four levels, so the lower family room almost always runs cool, and the furnaces there are often the second or third on duct systems that were never resized.
The 1990s and 2000s built most of today's city: large two-stories along the Highway 5 corridor, then the neighborhoods that followed the Highway 212 freeway after it opened in 2008. Many have a vaulted great room, a bonus room over the garage and a finished walkout, all on one furnace, sometimes with a zone board. Lakeshore streets on Lotus and Minnewashta mix older lake homes with large rebuilds that run two complete systems and an air exchanger.
The big two-stories are where a Chanhassen cold snap shows up. A vaulted great room with a wall of windows loses heat fast on a below-zero night, the thermostat in that room calls constantly, and the bedrooms upstairs overshoot. Split-level family rooms, half below grade, stay cool no matter what the furnace does. Humidifier settings that felt right in November frost the big windows by January, so turn the humidity down as it gets colder, and keep drifting snow off the PVC vents on the windward side.
Lake homes on Lotus and Minnewashta take in humid air every time a door opens to the dock, and a walkout facing the water can feel clammy even with the AC running, because the lower level rarely calls for cooling. A dehumidifier handles that better than a colder setting. In the 1990s two-stories, a builder-sized single-stage AC often cools the main floor fast and shuts off before the upstairs catches up. A variable-speed blower, more return air upstairs or a zone damper evens it out.
Gas-side rebates come from CenterPoint Energy, which covers high-efficiency furnaces, boilers and smart thermostats and lets you use the heating dealer of your choice. CenterPoint's ducted heat pump rebate applies only when the heat pump is paired with a gas furnace. Electric rebates depend on which utility the city's map puts you in. Xcel Energy has heat pump and cooling rebates, and Minnesota Valley Electric Cooperative runs its own program tied to off-peak enrollment. For either one, ask whether the rebate needs a registered contractor.
Rebate programs change every year; check the utility's current terms before you buy. Our guides: Xcel and CenterPoint rebates, heat pump rebates, what happened to the federal credits.
Central Minnesota Heating and Cooling, owned by Eric Brown and in business since 2009, serves Chanhassen and nearby towns in Carver County, about 15 miles from downtown Minneapolis. We're open 7 days, 7am–9pm, and no-heat calls get priority. Call 612-429-3465.
An HVAC service call in Chanhassen is a flat $79 trip charge, waived when you approve the repair. You get a written price before any work. Installed prices are on our pricing page.
The bonus room has more outside surface than any other room: an unheated garage below, roof above and often three exterior walls, and it usually sits at the end of the longest duct run. Adjusting dampers helps a little. The dependable fixes are a dedicated zone, a return air path out of the room, or a single ductless head so the room gets its own heating and cooling.
A heat pump can be worthwhile when the air conditioner is due anyway. A heat pump goes in where the AC was, cools in summer and heats through fall and spring, while the gas furnace covers the coldest weeks. Savings against gas are smaller than against propane, so the case rests on your electric rate, and that depends on whether your address is on Xcel Energy or Minnesota Valley Electric.
Often, though split-levels are harder to zone than two-stories because one trunk line feeds every level from the same spot. The usual approach is two zones, upper and lower, with motorized dampers on the branch ducts and a variable-speed blower or bypass so static pressure stays in range. Where the ducts don't divide cleanly, a single ductless head in the lower family room does the job for less.
Often, yes. A unit from the 1990s most likely runs on R-22, which hasn't been produced since 2020, so one leak turns into an expensive recharge with reclaimed refrigerant. Today's federal minimum for a new split AC in Minnesota is 13.4 SEER2, well above what went in then. Replacing it in spring or fall avoids a July breakdown and leaves time to line up CenterPoint and Xcel or MVEC rebates.
Yes, and there is no extra fee by town. Lake homes bring walkout lower levels that feel clammy, large glass facing the water and a furnace tucked into a lower-level corner, so condensate drainage and airflow are the usual focus.
Turning the furnace on this fall? What to do before the start-up, which smells and sounds are normal, and the filter, humidifier and CO alarm steps.
Read the guideEight heat pump buying mistakes Minnesota homeowners make, from shopping by SEER2 to ground-level outdoor units and outdated rebates, and how to avoid them.
Read the guideLennox 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 guideBrands we service in Chanhassen: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
Heat out in Chanhassen? Call or send a request.