Why Is My Heat Pump Blowing Cold Air in Winter?
Heat pump air feels cool next to a furnace even while working. Defrost, settings, low charge or failed backup: how to tell, and when to call 612-429-3465.
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Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Rockford (Wright County), about 24 miles from downtown Minneapolis.
Rockford sits where the North and South Forks join to form the Crow River, spans Wright and Hennepin counties, and has Highway 55 running through the middle of town.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: Crow River · Highway 55 · Ames-Florida-Stork House
Book in RockfordRockford began in 1855 as a mill town where the North and South Forks join to form the Crow River, and the oldest houses sit on the streets near the river and the historic Ames-Florida-Stork House. It stayed a small town of a few hundred people until 1970. Then the 1970s changed it: the population more than tripled, from about 730 to 2,400, so a large share of Rockford's homes are 1970s ramblers and split-levels, now around 50 years old.
Those houses were built before today's energy codes, with thinner wall and attic insulation, and they started with standing-pilot furnaces and R-22 air conditioners that have since been replaced once or twice on the original ductwork. From 1990 to 2020 the city added roughly 1,800 more residents, mostly in newer subdivisions. The Crow River spills onto low ground along its banks in wet years, so lots near the water carry the most basement moisture.
Rockford's 1970s homes were insulated to the standards of the day, which means thin attic insulation, leaky rim joists and outlet boxes that pass cold air on exterior walls. In January those houses feel drafty even with a healthy furnace, and they burn more gas than a newer home the same size. Air-sealing the attic and rim joist before replacing the furnace lowers the load, and a load calculation done after that work often calls for a smaller, less expensive furnace.
Rockford's 1970s ramblers and split-levels often have ductwork designed for heat, central air added later and one return for the whole house. That shows up in July as weak airflow, a noisy blower and bedrooms that never quite cool. A second return and sealed duct joints usually help more than more tonnage. Near the river, humidity and damp basements add to the load. And any air conditioner installed before about 2010 may run on R-22, which makes a leak repair expensive.
CenterPoint Energy supplies gas across Rockford, and it pays rebates on high-efficiency furnaces and boilers, whoever installs them, plus smart and programmable thermostats. Electric rebates depend on which side of Highway 55 you live on. North of it, the utility is Xcel Energy, and its heat pump rebates generally require a registered contractor. South of it, Wright-Hennepin lists air-source heat pump rebates and a heat pump tune-up rebate, paid as a bill credit.
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 Rockford and nearby towns in Wright County, about 24 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 Rockford 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.
If the basement has flooded before, it is worth considering. The furnace and water heater can sit on a raised platform or move above the past high-water mark, so a repeat flood doesn't ruin them. Keep the outdoor condenser pad out of low spots, too. Before relocating any equipment, check with the city on floodplain rules, since they can affect what is allowed and where.
CenterPoint Energy supplies natural gas across the whole city, and gas furnaces are the norm in town. Electric is the part that splits: the city lists Wright-Hennepin for properties south of Highway 55 and Xcel Energy for properties north of it. Check the electric utility name on your bill before comparing heat pump rebates, since each utility runs its own program.
Usually the sheet metal itself is fine; ducts from that era can last the life of the house. What they need is sealing at the seams and joints, a return large enough for a modern blower, and a look at whether the supplies reach the far bedrooms. We measure static pressure before we size the new furnace. Replacing ducts behind finished walls is costly, but sealing and adding a return rarely is.
Mostly the contractor and the paperwork. Xcel's rebate application for cooling equipment says the equipment must be bought from and installed by a contractor registered in its program, and heat pump forms follow a similar pattern, so ask any installer before signing. Amounts and deadlines change, so read the current form first. South of 55, Wright-Hennepin's rules apply instead.
Heat pump air feels cool next to a furnace even while working. Defrost, settings, low charge or failed backup: how to tell, and when to call 612-429-3465.
Read the guideFurnace size comes from a Manual J heat loss at a -15°F design day, not square feet. Input vs output BTU, AFUE, why old furnaces run big and what to ask for.
Read the guideWater by the furnace in July? Normal dripping versus a real leak, the usual causes (drain, pump, iced coil, cracked pan), and what to do right now.
Read the guideBrands we service in Rockford: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
Heat out in Rockford? Call or send a request.