HVAC 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 the year, your system is working
Winters here are mild, averaging 37°F, but summer afternoons reach 89°F, and cooling runs May through September. Add November through March for heat and a new system needs to handle ten months of work a year, not just a few weeks of extreme weather on either end.
Most homes here heat with electricity, so whatever goes in has to hold up under steady use in both seasons. Horry County has also seen 111 damaging wind events over the past ten years, and statewide, 45% of households lost power for at least 24 hours in 2024. That is worth thinking about when you choose between a straight AC and a heat pump, or decide whether to plan for backup power.
- 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
- When should I replace my HVAC system?
- Replace it when repairs get frequent, the unit is old, or it can no longer keep up on the hottest or coldest days. Parts wear out and efficiency drops as a furnace or air conditioner ages, so a major repair like a compressor or heat exchanger on an older unit is usually the point where replacement makes more sense than fixing it again. Homes here run the air conditioner May through September and the heat November through March, so the equipment is working most months of the year. A contractor can look at the age and condition of your unit and tell you where it stands.
- Should I replace my furnace and air conditioner at the same time?
- It depends on the age and condition of each one, but there are good reasons to do them together. A furnace and air conditioner installed at different times often don't match well, since the blower, coil, and ductwork all work as one system. If your furnace and air conditioner are close in age, replacing both now means they're sized to work together and you won't be paying for a second installation a few years later. A contractor can look at both units and tell you whether one has real life left in it.
- What happens during an HVAC installation?
- A contractor removes the old furnace or air conditioner, or both, and sets the new equipment in place. This includes connecting it to the ductwork, the refrigerant lines, the gas or electric line, and the thermostat wiring. Once everything is connected, the contractor checks refrigerant charge, airflow, and gas pressure or electrical draw, and tests the system through a full heating and cooling cycle before calling the job done. A contractor can walk you through what your specific installation will involve.