HVAC Installation in Orangeburg, 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 Orangeburg County will get in touch.
Tell us about the job
It takes about a minute.
Ten months of the year, your system is working
Orangeburg County only gets a couple months off. Winter nights average 37°F from December through February, and summer afternoons average 91°F. Put those together and a heating and cooling system here runs from November through March, then again May through September. That is 10 months a year the system is carrying the load one way or the other.
A new system has to handle both ends of that without strain. Nearly 8 in 10 homes here heat with electricity, so the unit you install carries the winter load directly, not just the summer one. And with 177 damaging wind events recorded here over the past ten years, and close to half of South Carolina households losing power for at least a day in 2024, it is worth asking your contractor how the system you choose comes back on once the power does.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 37°F
- the average winter night it heats against
- 91°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Once your furnace or air conditioner needs a repair that costs a real chunk of what a new one runs, replacement usually makes more sense than another fix. An older system that is starting to need attention more often is telling you something too. Ten months of the year here, homes need either heat or cooling, so a system on its last legs does not get much rest to fail gracefully. If yours is limping through summer afternoons near 91°F or winter nights near 37°F, that is the time to start planning the swap, not after it quits.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, yes, it is worth doing together. A furnace and AC installed at the same time are matched to work as one system, and a contractor can tie them into your ductwork and wiring in one job rather than coming back for a second. That said, if one unit is much newer than the other, replacing just the failing one is reasonable. The right call depends on the age and condition of each, which is something a contractor can size up in your house.
- What happens during an HVAC installation?
- A contractor removes the old furnace and air conditioner, or the old heat pump, and puts the new equipment in the same place, connecting it to your existing ducts, gas line or electrical circuit, and condensate drain. They will also check that your ductwork and electrical setup can handle the new unit, since not every system is a straight swap. Once it is running, they test refrigerant charge, airflow and thermostat calibration before calling the job done. A contractor can walk you through what your specific installation will involve.

