How to Size Central AC for a Twin Cities Home
Why square-foot rules oversize Minnesota air conditioners, what a Manual J load calculation measures, and how to read the size of the AC you have now.
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AC Replacement in Deephaven, MN
We replace central air in Deephaven for $5,200–$9,800 installed; the quote is flat-rate and written, and the Manual J behind it counts lake exposure. Xcel Energy, the electric utility, sets the AC and heat pump rebate rules, while CenterPoint Energy adds a rebate when a heat pump is installed with a gas furnace.
AC replacement calls in Deephaven homes
New central air is the moment to correct how a Deephaven house's first system was fitted. The indoor coil has to be the one rated with the new condenser, and the return ducts get measured, since a 1940s or 50s return system often can't carry the air a modern coil wants. New equipment is built for a lower-GWP refrigerant, R-454B or R-32, so we check the line set before deciding to reuse it. In lower levels near the shore, a two-stage or right-sized system that runs longer does more for humidity than extra tonnage.
On a lake lot, condenser placement balances view and noise against the manufacturer's clearances. Get a price on a dual-fuel heat pump too. It cools like any AC, carries the heating through the shoulder seasons and lets the gas furnace take the coldest weeks, and CenterPoint's ducted heat pump rebate is limited to that combination. Xcel's own heat pump rebates need a Trade Partner Network installer.
Updated September 26, 2026
How much does a new central AC cost in Deephaven?
A new central air conditioner from us runs about $5,200–$9,800 installed in Deephaven, sized with a Manual J load calculation. Same prices in Deephaven as in every town we serve. See the AC replacement cost guide or furnace and AC together.
Are there rebates for a new air conditioner in Deephaven?
Gas here is CenterPoint Energy and power is Xcel Energy. CenterPoint pays rebates on high-efficiency furnaces and on boilers, useful where an older house still runs on hot water, with the installer of your choosing and an application filed the same calendar year. It also pays toward a ducted heat pump installed alongside a gas furnace. Xcel's rebates take in central AC, heat pumps and mini-splits, with heat pump rebates requiring a Trade Partner Network installer, so check before you buy. Saver's Switch and AC Rewards pay you for letting Xcel trim AC use on peak days. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.
Signs it's time to replace your AC
- An R-22 system with a refrigerant leak
- A failed compressor on an older unit
- A leaking evaporator coil on a system that's had other major repairs
- A system that has needed refrigerant more than once
- Upstairs rooms that never cool, even with the AC running all afternoon
- A house that reaches the setpoint but still feels damp
- Repair quotes that keep coming back for the same system
More detail on our ac replacement & installation page.
AC replacement in Deephaven: questions
Are Xcel's Saver's Switch or AC Rewards worth signing up for with a new AC in Deephaven?
They can be. With Saver's Switch, Xcel can cycle your air conditioner during peak periods and you save on the bill; AC Rewards uses an enrolled smart thermostat instead, with a yearly reward. On a lake house with a lot of west- or south-facing glass, a cycled afternoon can let upstairs rooms warm a few degrees. Cooling a bit extra before the peak and a well-sized system make it easier to live with.
We'd rather not see the new condenser from the dock. Where can it go on our Deephaven lot?
Out of sight from the water is usually doable. A side yard often works best, with less wind and sun than the lake side, and the unit's hum won't carry across the patio on a quiet evening. Wherever it goes, it needs the manufacturer's side and top clearances, a level pad above runoff from the slope, and some distance from bedroom windows. A screen is fine if it leaves the required airflow space.
More in Deephaven
- Furnace repair in Deephaven
- Furnace replacement in Deephaven
- AC repair in Deephaven
- All HVAC service in Deephaven
AC replacement near Deephaven
- Excelsior, MN 2 mi
- Minnetonka, MN 2 mi
- Shorewood, MN 3 mi
- Wayzata, MN 4 mi
- Orono, MN 4 mi
- Chanhassen, MN 4 mi
Brands we install and service
Guides on ac replacement
Ductless Mini-Split vs Central AC: Which Fits Your House?
Mini-split or central air? In Minnesota the answer turns on your ductwork and your heat. Costs, comfort, winter use and the houses where each one wins.
Read the guideWhy Is My AC Freezing Up? Ice on the Lines or the Indoor Coil
Ice on your AC lines or indoor coil means too little airflow or too little refrigerant. What to do right now, what you can check, and when to call.
Read the guideContact Us
AC replacement in Deephaven? Call or send a request.