Your Twin City Heating and Cooling Experts
R-410A refrigerant — the standard in residential AC systems installed from the mid-2000s through 2024 — is being phased out under EPA regulations, with new systems now required to use lower-GWP refrigerants like R-454B. For Twin City homeowners with existing R-410A systems, this creates a planning consideration: refrigerant availability and pricing for older systems will change over the next several years. Emanuel County homeowners whose AC systems are approaching the 10 to 15 year mark should factor refrigerant transition costs into their repair-versus-replace analysis.
In Twin City, air conditioning isn't seasonal — it's infrastructure. Emanuel County's climate means cooling systems run from spring through fall under conditions that simultaneously stress refrigerant circuits, blower motors, and drain systems. A system that made it through last summer isn't guaranteed to make it through the next without attention.
Twin City's extended cooling season generates approximately 3,270 cooling degree days of annual energy demand. Homes built around 1978 — the median construction year in Emanuel County — are at the age where original air conditioning equipment has either been replaced once or is overdue for evaluation.