Mini Split Installation in Charlotte, MI
A new system here will heat from October through May and cool from June through August every year. Tell us about the house, and a licensed contractor who covers Eaton County will get in touch.
Tell us about the job
It takes about a minute.
Eaton County asks a lot of a mini-split
Your mini-split needs to work eight months a year here, October through May, then switch over and cool three more. That is eleven months of the year it is doing something. Winter nights average 19°F, cold enough that the heat pump side has to work hard to keep pulling warmth out of that air.
A new unit installed today has to meet federal minimums either way, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. But meeting the minimum and handling a 19°F night well are different things, and sizing the unit for what winter actually does here matters more than the rating on the box. Power outages are common in Michigan too, more than a third of households went at least a day without power last year, so whatever backup heat you have matters as much as the mini-split itself.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 19°F
- the average winter night it heats against
- 80°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Michigan requires HVAC contractors to hold a state license.
The Board of Mechanical Rules issues that license, and it covers the contractor rather than any single job. The state tested this contractor before letting them work, and there's a record of who holds the license, but the license itself doesn't follow the mini-split once it's installed.
Most cities and counties in Michigan require a permit for a mini-split installation, along with an inspection once the work is done. The license shows the contractor was tested. The permit and inspection are what stand behind this particular job, the refrigerant lines and the electrical connection that make it run.
Sources: Michigan Legislature · Michigan Department of Licensing and Regulatory Affairs
- Is a mini split worth it?
- For the right room or addition, yes. A mini split heats and cools a space without ducts, so it works well for a converted garage, a sunroom, or an addition where extending ductwork would mean tearing into walls. Homes here need heat or cooling most of the year, October through May for heat and June through August for cooling, so a unit gets used almost year round. Whether it makes sense for your house depends on what you're trying to condition and what's there now, and that's worth a contractor walking through with you.
- How many rooms can a mini split cover?
- One indoor unit covers one room or open area. If you need more than one room conditioned, a single outdoor condenser can run multiple indoor units, with one head mounted in each room. Each head is sized to the room it's in, so a contractor will look at the size and layout of every room you want covered before recommending how many heads and what capacity.
- Can a mini split heat a whole house?
- It can, if there's an indoor unit in enough of the rooms to cover the house. A multi-zone system ties several indoor heads to one outdoor unit, and each head heats the room it's mounted in. Winter nights here average 19°F, so the heat pump needs to be sized and rated for that kind of cold, not just for mild weather. A contractor can work out how many zones your house needs and whether the equipment holds up to a 19-degree night.