How to Clean Your Outdoor AC Coil Without Damaging It
Clean your outdoor AC coil the safe way: power off at the disconnect and breaker, brush cottonwood off dry, rinse with a garden hose, and know when to stop.
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Forest Lake annexed its surrounding township in 2001, so the city now takes in a railroad-era downtown, homes and cabins around the lake, and rural acreage where some houses still heat with propane.
We repair and replace furnaces, air conditioners, heat pumps, boilers and ductless mini-splits in Forest Lake and across Washington County. Every visit starts with a $79 trip charge and a written price before any work, and the $79 is waived when you go ahead with the repair.
Xcel Energy supplies gas only where its mains reach; rural properties beyond them buy propane from a private supplier.
Updated September 23, 2026

Around town: Forest Lake · Clear Lake · Interstate 35 · Minnesota Highway 97 · Downtown Forest Lake
Book in Forest LakeForest Lake began in 1868 as a stop on the St. Paul and Duluth Railroad and grew into one of the Upper Midwest's summer resort areas. Many lakeshore cottages went up between 1910 and 1930, and cabin resorts followed in the 1930s and 40s. The cottages that survive have usually been winterized and enlarged in stages, often over a crawlspace, with additions at different floor heights and little room for ducts. The oldest houses in town stand near the old downtown, with chimneys that have served coal and then gas.
The 2001 annexation of Forest Lake Township brought in miles of rural land, where houses on acreage range from 1970s ramblers to new custom homes, many on private wells and septic and some heated with propane. In town, the 2000s added subdivisions of two-stories and walkouts on natural gas, tight houses with condensing furnaces and air exchangers.
Lake cabins winterized in stages are the classic Forest Lake winter problem: crawlspaces where water lines and ducts freeze, and additions that never got a proper heat run. On rural acreage, propane deliveries depend on a plowed driveway and a tank kept well above empty before a cold stretch. Wind across the frozen lake also drifts snow onto lakeside vents and outdoor units, so check them after every storm.
Lake homes deal with humidity all summer, and a cabin over a crawlspace can pull damp air up into the living space. Shoreline trees load condenser coils with seeds and pollen by early summer. Newer subdivision homes are tight, and when the air exchanger is off or out of balance they feel stuffy on muggy days even with the AC running. Many older cabins never had central air, and a ductless heat pump is often the simplest way to add it.
Xcel Energy supplies gas and electricity in Forest Lake where its lines reach. For a home moving off propane, look at Xcel's Make the Switch to Natural Gas program along with its heating equipment rebates for high-efficiency gas furnaces. Xcel's heat pump rebates, which can also help a propane home adding a heat pump, run through its Trade Partner Network, so ask whether the rebate needs a registered contractor. Minnesota's HEAR and HOMES rebates haven't launched.
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 serves Forest Lake and the rest of Washington County, about 25 miles from downtown Minneapolis. We repair and replace furnaces, central air, heat pumps, boilers and ductless mini-splits, and we're open 7 days, 7am–9pm. Call 612-429-3465.
A flat $79 trip charge, waived when you approve the repair. Written price before any work; same prices in every town we serve. Installed prices are on our pricing page.
For most houses, yes, though the timing depends on your equipment. Xcel runs the service line and sets the meter, which the utility prices separately. Then the furnace, water heater and any other gas appliances need conversion kits or replacement, since propane and natural gas run at different pressures and orifice sizes. If the propane furnace is near the end of its life, replacing it at the same time usually beats converting it.
Most can, but a cabin winterized a piece at a time needs a look first. We check whether the crawlspace or slab is insulated, where the water lines run and whether any ductwork exists. A small furnace works if there's room for it and for ducts; otherwise ductless heat pumps with a backup heat source are the usual fit. Keeping the plumbing from freezing is part of the plan either way.
Treat the crawlspace as part of the house. Seal and insulate the walls and rim joist, lay a vapor barrier over the soil, and give the space a little conditioned air so it stays above freezing. Ducts running through a vented crawlspace should be sealed and insulated. If the cabin sits empty part of the winter, a Wi-Fi thermostat that sends a low-temperature alert gives you time to act.
Working CO alarms within 10 feet of every bedroom, which Minnesota law requires, plus a propane gas detector mounted low, since propane is heavier than air and settles in basements. Know where the shutoff is at the tank. If the tank ever runs dry, suppliers generally leak-test the system before restoring service, and we can relight and check the furnace afterward.
Clean your outdoor AC coil the safe way: power off at the disconnect and breaker, brush cottonwood off dry, rinse with a garden hose, and know when to stop.
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Read the guideBrands we service in Forest Lake: AirEase · Amana · American Standard · Ameristar · Aprilaire · Arcoaire · Armstrong Air · Bosch · Broan-NuTone · Bryant · Buderus · Burnham · Carrier · Champion · Coleman · Comfortmaker · Concord · Daikin · Day & Night · Ducane · ecobee · Frigidaire · Fujitsu · Gibson · Goodman · Google Nest · Gree · Heil · Honeywell Home · Lennox · LG · Lifebreath · Lochinvar · Luxaire · Maytag · Midea · Mitsubishi Electric · MrCool · Navien · NTI · Payne · Peerless · Rheem · Rinnai · RunTru · Ruud · Samsung · Santa Fe · Tempstar · Trane · Triangle Tube · Utica Boilers · Viessmann · Weil-McLain · Westinghouse · York
Heat out in Forest Lake? Call or send a request.