Mini Split Installation in Greenville, SC
A new system here will heat from October through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Greenville County will get in touch.
Tell us about the job
It takes about a minute.
Greenville asks for both heat and cooling, most of the year
Your mini-split will run nearly twelve months here. Winter nights average 34°F from December through February, and summer afternoons average 87°F from May through September. That is seven months of heat and five months of cooling, back to back, with barely a break between them.
A new unit has to be sized and set up for both jobs, not just the one you notice first. Any split-system heat pump made now, ductless or not, has to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. That is the floor. With the swing between a 34°F night and an 87°F afternoon, installing it right so it actually hits those numbers matters as much as the rating on the box.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 34°F
- the average winter night it heats against
- 87°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most homes here, yes, because the system needs to run for heat or cooling all year long. A mini split covers October through April on the heat pump side and May through September on the cooling side with one piece of equipment. Homes here need to run one or the other every month of the year, so a system built to do both earns its keep instead of sitting idle half the time.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several, depending on which system a contractor installs. A single-zone system heats and cools one room or one open area well. A multi-zone system ties several indoor heads to one outdoor unit, so it can cover a handful of rooms, each with its own thermostat. How many rooms one outdoor unit can carry depends on the size of the unit and the size of the rooms, so a contractor needs to look at the house before answering for your case.
- Can a mini split heat a whole house?
- A multi-zone mini split can heat a whole house if there are enough indoor heads placed to reach every room, and winters here call for real heat, with nights averaging 34°F from December through February. A single indoor head heats the room it's in and whatever space is open to it, not rooms behind closed doors down a hallway. Whether a mini split can carry your whole house depends on the layout, so a contractor needs to walk the house to size it right.

