Mini Split Installation in Myrtle Beach, SC
A new system here will heat from November through March and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Horry County will get in touch.
Tell us about the job
It takes about a minute.
Ten months of work for a new mini-split here
Myrtle Beach only gives a mini-split two months off. Heat runs November through March, with winter nights averaging 37°F, and cooling runs May through September, with afternoons averaging 89°F. That is ten months a year the system is doing one job or the other.
Any mini-split installed now has to meet the federal minimum for a split-system heat pump, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. In a place that leans on the cooling side almost half the year and the heating side the other half, both numbers matter, not just one.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 37°F
- the average winter night it heats against
- 89°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most homes here, yes. Myrtle Beach needs heat or cooling ten months out of the year, with winter nights averaging 37°F and summer afternoons hitting 89°F, so a heat pump that handles both jobs stays busy nearly year round. A mini split does this without ductwork, and it can serve a room that your main system never quite gets right, like a sunroom or a garage conversion. Whether it makes sense for your house depends on what you already have for heat and cooling, and a contractor can walk you through that.
- How many rooms can a mini split cover?
- A single outdoor unit can run several indoor heads, so one system can cover more than one room. Each indoor head is sized for the room it serves, so a multi-zone system lets you cool a bedroom and a living room at different temperatures at the same time. How many zones your house needs comes down to the layout and square footage, which is something a contractor sizes on site.
- Can a mini split heat a whole house?
- A mini split with enough indoor heads can heat a whole house, and as a heat pump it's built to do both heating and cooling. Whether it's the right way to heat this particular house depends on square footage, layout, and what's already in place for heat. With 86.4% of homes here already heating with electricity, a mini split fits well alongside that, but a contractor needs to look at the house to say what size system and how many zones it would take.

