Mitsubishi Hyper-Heat vs Standard Mitsubishi Heat Pumps
Mitsubishi Hyper-Heat keeps heating to -13°F, and standard models cost less. See which Minnesota rooms need it; our ductless installs run $4,200–$12,500.
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Ductless mini-split installation in Excelsior costs $4,200–$12,500, flat-rate, a way to cool radiator houses without cutting plaster. They are a common way to cool radiator houses, additions and winterized cottages without cutting into plaster.
Excelsior was built out early, and most of the older houses were never designed for central air. A mini-split cools a Victorian or foursquare without cutting plaster or running ducts through balloon-framed walls, which is why it shows up here more often than in newer suburbs. Third floors and finished attics trap heat worst of all, and a head up there makes them usable in July. Additions, such as a kitchen bump-out or a second-floor dormer, tied into the original system with one long run are the usual first place a ductless head earns its keep.
Former summer cottages, winterized one room at a time, have shallow crawlspaces and thin walls, so a head gives them heat and cooling where a duct cannot go. On narrow lots, a multi-zone outdoor unit that serves several heads from one spot is often better than three outdoor units. Xcel's heat pump rebates include ductless mini-splits; ask whether a registered contractor is required.
Updated November 10, 2026
Our $4,200–$12,500 installed price comes as a written flat-rate quote, with a 2-year labor warranty on top of the manufacturer's parts warranty. Third floors and plaster rooms mean longer line sets and more careful routing, and a multi-zone outdoor unit on a tight lot costs more than a single-zone one. Compare central AC vs ductless costs.
Xcel's heat pump rebates include ductless mini-splits, a common way to cool a radiator house; ask whether the 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.
Yes. A mini-split is a separate system, so the boiler and radiators keep heating the house as they do now. The heads add cooling and, in mild weather, can heat the room they serve. The boiler remains the main heat source in January, so we do not touch it or the pipes.
It depends on the layout and the load, not on the number of floors. A common plan is one head for the third floor or attic, one for the main living area and one for the bedroom that runs hottest, all on one multi-zone outdoor unit. We measure the rooms and give a written quote with the count.
Mitsubishi Hyper-Heat keeps heating to -13°F, and standard models cost less. See which Minnesota rooms need it; our ductless installs run $4,200–$12,500.
Read the guideWall-mounted or floor-console mini-split heads? Which suits each Minnesota room, plus drains, line routing, snow and the outdoor unit, and mixing styles.
Read the guideHigh-velocity AC cools older Minneapolis and Saint Paul boiler houses through small tubing. HomeGuide puts it at $3,500–$15,000+. See when ductless wins.
Read the guideHeat out? AC quit? Call or send a request.