How to Size Central AC for a Twin Cities Home
Why square-foot rules oversize Minnesota air conditioners, what Manual J load calculation measures and how to read your current unit. Installs $5,200–$9,800.
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AC Replacement in Andover, MN
Central air replacement in Andover costs $5,200–$9,800 installed with us, sized by Manual J with a coil matched to the new condenser. Connexus Energy supplies Andover's electricity, so price a heat pump alongside the AC.
AC replacements in Andover homes
New AC installs in Andover often start with a question about the furnace fuel. On a CenterPoint gas house, a straight central AC and a heat pump that hands off to the furnace both make sense. On a propane house, the heat pump earns more of its keep, because every mild-weather hour it heats is propane you don't buy. Connexus Energy's dual-fuel off-peak program strengthens that case, and its rebates for heat pumps and air conditioners change from year to year.
Placement is rarely tight here. On the bigger lots we set the pad where the line set stays short, away from dryer vents and roof drip edges, with clearance for airflow and service. Sizing comes from a Manual J, and in the tight 2000s houses it often calls for less capacity than the square footage suggests, which helps the new system pull humidity instead of short-cycling.
Updated November 10, 2026
What affects the price of a new central AC in Andover?
What moves an AC quote within that range: tonnage from the Manual J load calculation, the SEER2 rating, a new coil and line set, and any electrical work. See the AC replacement cost guide or furnace and AC together.
Are there rebates for a new air conditioner in Andover?
Electricity comes from Connexus Energy, which offers rebates on air-source, ductless and ground-source heat pumps and on central air. Ask whether a Connexus heat pump rebate needs a registered contractor. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.
AC replacement in Andover: questions
Can a heat pump heat our Andover house when it's well below zero?
It can carry much of the load. Cold-climate models keep producing heat well below zero, and Mitsubishi rates its Hyper-Heat line down to -13°F, but capacity drops as the temperature falls. In Andover we pair the heat pump with a gas or propane furnace that takes over in deep cold, which is also the setup the Connexus off-peak program expects. Our heat pump installs are $7,500–$14,500.
Our Andover house was built in 2005. Can the new AC reuse the old line set?
Often, if it's sized correctly and undamaged. A 2005 system ran on R-22 or R-410A, and the new condenser will use R-454B or R-32 with a matched coil. We check the line diameters against the new unit's specifications, flush lines that carried R-22, then pressure-test and evacuate. Lines that are kinked, undersized or buried in a finished ceiling we can't inspect get replaced.
More in Andover
- Furnace repair in Andover
- Furnace replacement in Andover
- AC repair in Andover
- Heat pumps in Andover
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AC replacement near Andover
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Brands we install and service
Guides on AC replacement
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Heat out? AC quit? Call or send a request.