2-Stage vs Variable-Speed AC: Which Fits a Minnesota Home
Two-stage or variable-speed AC for a Minnesota home? How each handles humid July days, what SEER2 and EER2 mean, what it costs and what your furnace needs.
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Replacing central air in Loretto costs $5,200–$9,800 installed, depending on tonnage, efficiency and whether the coil and line set are replaced. Loretto homes get Xcel Energy electricity, so rebates for this job run through Xcel's cooling and heat pump programs. The quote is written, flat-rate and sized by Manual J.
Many Loretto houses were built long before anyone planned for central air, so a replacement is a chance to fix what the original add-on got wrong. The new indoor coil has to match the outdoor unit and fit on the furnace, and in a low basement that can mean a different coil height than the old one. We check whether the line set can stay; copper sized for another system, or run through a wall that has since been finished, may need replacing.
Loretto is on Xcel Energy electricity. On Xcel's side, the Residential Cooling Rebates and Heat Pump Rebates are the two that fit this job, and a few measures there require an Xcel-registered contractor, which is worth confirming before you sign. A heat pump in place of a straight air conditioner can make sense here: it cools the same way in summer and takes over part of the heating from the CenterPoint gas furnace in spring and fall.
Updated September 23, 2026
A new central air conditioner from us runs about $5,200–$9,800 installed in Loretto, sized with a Manual J load calculation. Same prices in Loretto as in every town we serve. See the AC replacement cost guide or furnace and AC together.
Loretto homes are on CenterPoint Energy gas and Xcel Energy electricity, which puts two sets of rebates in play. CenterPoint's heating rebates cover high-efficiency furnaces, boilers and thermostats, with any dealer. Xcel covers central AC, heat pumps and mini-splits, and many of those need an Xcel-registered contractor, so ask before choosing equipment. If you're looking at acreage just outside town in Medina, expect propane instead of gas, and the electric provider may change too. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.

More detail on our ac replacement & installation page.
In most cases, yes, if the house has a forced-air furnace. The coil sets on the furnace, the condenser goes on a pad outside, and the supply ducts carry the cold air. The catch in older homes is that the ducts were sized for heat, which moves less air, so we check the return and the upstairs supply before sizing. A house short on duct capacity may do better with a smaller system plus a ductless head upstairs.
Often smaller than the one it has. Small houses commonly end up with condensers bigger than they need. An oversized AC cools the air fast and shuts off before it pulls much moisture out, so the house feels clammy at the setpoint. A Manual J load calculation looks at the actual walls, windows and insulation, and in a small, simple house it frequently lands on a smaller unit, which also costs less.
Two-stage or variable-speed AC for a Minnesota home? How each handles humid July days, what SEER2 and EER2 mean, what it costs and what your furnace needs.
Read the guideCentral AC replacement in Minnesota runs $5,200–$9,800 installed with us in 2026. What moves a quote, R-22 systems, and when to repair or go heat pump.
Read the guideSEER2 replaced SEER on January 1, 2023 under a tougher DOE test, so the numbers read lower. What it measures, Minnesota's 13.4 minimum, and what's worth buying.
Read the guideAC replacement in Loretto? Call or send a request.