Aux Heat vs Emergency Heat on a Heat Pump Thermostat
Aux comes on by itself to help a heat pump; emergency mode is a manual, backup-only setting. When each is normal in Minnesota and what both cost to run.
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Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Howard Lake (Wright County), about 40 miles from downtown Minneapolis.
Howard Lake is a Highway 12 railroad town on the south shore of the lake it's named for, home of the Wright County Fair and a lot of older houses between the water and the tracks.
The city itself is on Xcel Energy for electric; rural addresses around Howard Lake may be on a cooperative, so check your bill.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: Howard Lake · Dutch Lake · US Highway 12 · Howard Lake City Hall · Wright County Fairgrounds
Book in Howard LakeHoward Lake was platted in 1869 along the railroad, and the blocks between the tracks and the lake's south shore still hold most of its pre-war housing, with the 1904 City Hall as a marker for how old the core is. Many of those homes started with a coal-fired gravity furnace, the kind with big round ducts rising to floor grates and no blower at all, and were converted to gas with a fan added later. Others kept a hot-water boiler and cast-iron radiators. Either way, the ductwork or piping often predates everything else in the basement.
The town grew by about 500 people in the 1990s, its biggest postwar decade, and that growth plus the 2000s account for most of the ramblers, split-entries and two-stories on the newer streets. Those homes have ordinary basements and room for standard equipment, and the furnaces and condensers from the 1990s are now 25 to 30 years old.
The lake sits north of town, so a northwest wind crosses open ice before it reaches the houses along the shore, and the lake-side rooms of older homes feel it first. In a radiator house the fix is often bleeding trapped air, checking the circulator and balancing the system rather than turning up the boiler. Converted gravity systems have a different weakness: the old floor returns move air slowly, so far rooms lag behind. Low basements with steep stairs make furnace swaps slow, so replacing a failing furnace before the first cold snap beats an emergency swap.
Central air added to a converted gravity system works better than people expect on the main floor, since the old ducts are large, but cool air won't climb to a finished attic bedroom through a floor grate. Those attic rooms and the enclosed porches are the hot spots in July. Lake humidity adds to it: an oversized condenser cools fast, shuts off and leaves the house clammy. Right-sizing at replacement, a slower blower speed and a ductless head for the attic usually beat a bigger unit.
In town, gas-side rebates come from CenterPoint Energy. Its heating rebates include high-efficiency boilers as well as furnaces, which matters in the radiator homes, where a qualifying condensing boiler counts. You can use the dealer of your choice, and the application goes in the same calendar year as the install. Electricity in the city is Xcel Energy; for a heat pump or new central air, ask Xcel whether its rebate requires 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 Howard Lake and nearby towns in Wright County, about 40 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 Howard Lake 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.
In most cases a single ductless mini-split head is the cleanest fix. A converted porch has more glass and less insulation than the rooms beside it, so a register spliced off the nearest duct just steals air from the next room and still leaves the porch cold. A mini-split gives the porch its own thermostat, and it cools in summer too.
White paper wrap on old duct seams might be a problem. That wrap was often made with asbestos. It is only a hazard when it is disturbed, so leave it alone. Before we cut into that ductwork for a furnace swap, it should be tested, and if it comes back positive a licensed abatement contractor removes it first. We plan the install around that step.
Often, yes. Those ducts are oversized for a modern blower, so they move air easily, but they usually lack dampers, leak at the seams and return air through one or two floor grates. Sealing the seams you can reach and adding a proper return in the far rooms usually does more than any change to the furnace.
Yes, without tearing out the radiators. Ductless mini-splits put a head in each main room and run small refrigerant lines outside. Small-duct high-velocity systems snake flexible tubing through closets and attic space to small round outlets. Mini-splits also add heat in fall and spring. We look at the attic, closets and wall space before recommending one, and the boiler keeps doing the winter work.
Aux comes on by itself to help a heat pump; emergency mode is a manual, backup-only setting. When each is normal in Minnesota and what both cost to run.
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Heat out in Howard Lake? Call or send a request.