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 Golden Valley (Hennepin County), about 4 miles from downtown Minneapolis.
Golden Valley is mostly 1940s to 60s construction on large, wooded lots, mainly ramblers, split-levels and Tudors. It also has a well-known stock of architect-designed mid-century modern houses around Tyrol Hills and Sweeney Lake.
Updated November 10, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: Theodore Wirth Park · Sweeney Lake · Brookview Park · Bassett Creek · General Mills headquarters. Neighborhoods: Tyrol Hills · North Tyrol Hills · Sweeney Lake
Book in Golden ValleyTyrol Hills was platted in 1934 and built out mostly between 1940 and 1970, and it holds houses by architects such as Ralph Rapson and Carl Graffunder alongside Tudors and period revivals. Those homes are one of a kind, and so are their mechanical systems: low-slope roofs with no attic for ducts, clerestory windows, open plans where a single thermostat reads one corner of a large space, and in some houses radiant heat in the slab or hot-water baseboard.
The rest of Golden Valley, built mostly in the 1950s and 60s, is ramblers and split-levels on generous lots with basement furnaces and add-on central air. Wooded lots run through much of the city, around Sweeney Lake, near Theodore Wirth Park and along Bassett Creek, so condensers sit in shade that helps them run efficiently but fills them with leaves and seeds.
The glass walls that make Golden Valley's mid-century houses special also make them hard to heat: large panes of older glass lose heat fast and send a cold draft across the floor. Flat and low-slope roofs have no attic buffer, so ice builds at drains and scuppers when heat leaks through. In slab-heated houses, a leak in an old radiant loop or a tired boiler is a serious repair. The 1950s ramblers have simpler problems: aging 80% furnaces and original chimneys.
Big windows facing south and west turn mid-century living rooms into sunrooms on July afternoons, and without an attic there's nowhere to run a conventional duct. Ductless heads and ceiling cassettes are the usual answer. Mature trees shade the houses, but they also drop leaves, cottonwood and maple seeds into condensers. Houses near Sweeney Lake and Bassett Creek pick up humidity in their lower levels.
For a mid-century house going ductless, Xcel's heat pump rebates list mini-splits and cold-climate mini-splits, and they run through its Trade Partner Network, so ask whether the rebate needs a registered contractor. CenterPoint's heating rebates cover high-efficiency boilers as well as furnaces, which matters for houses with radiant or hot-water heat, and you can use the dealer of your choice.
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 Golden Valley and nearby towns in Hennepin County, about 4 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 Golden Valley 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.
Usually without conventional ducts. Ductless mini-splits need only a line set and a small wall opening at each indoor head, and the outdoor unit can sit out of sight behind landscaping. Ceiling cassettes or slim wall units keep the look clean. If the house heats through ducts in the floor or slab, the first step is checking whether that ductwork can carry cooled air at all.
Large glass walls lose heat fast in January and pick up a lot of sun in July, and older glass makes both worse. A Manual J load calculation counts every window by size and direction, so the equipment matches the real load. Supply registers placed under the big glass, a variable-speed blower that runs longer and gentler, and window upgrades where possible all help.
An addition is usually fed by a long duct run off the original trunk, with no return of its own. Sealing and insulating that run, adding a return or transfer grille, or putting in a single ductless head fixes most of them. We take airflow readings at the room first, then pick the least invasive fix.
Usually, since a Tudor has an attic and a basement to work with. Ducts for the upstairs can run through the attic from a small air handler there, or up through closets from the basement, and the outdoor unit goes in a side or rear yard behind plantings. Steep roofs keep the upstairs warm, so we size from a load calculation that counts them, not from square footage.
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 guideSigns of a cracked furnace heat exchanger, how a technician confirms it with a camera and CO readings, what to do after a red tag, and repair vs replace.
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 guideBrands we service in Golden Valley: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
Heat out in Golden Valley? Call or send a request.