2026 Monthly & Annual Utility Breakdown (4,000 Sq Ft in South Carolina)
Recommended Equipment Size:Dual-Unit 6.0 Tons (72,000 BTU)
South Carolina Residential Electricity / Gas Rate:15.1¢/kWh | $1.58/therm
Cold-Climate Heat Pump (15-Yr Lifespan):$867/yr ($72/mo)
Winter Heating vs. Summer Cooling Split (Heat Pump):$600/yr Heat | $268/yr AC
Natural Gas Furnace + Central AC (18-Yr Lifespan):$1,043/yr ($87/mo)
Electric Baseboard + Window AC (25-Yr Lifespan):$2,341/yr ($195/mo)
15-Year Heat Pump Lifespan Net Savings vs. Baseboard:+$18,510
💰 Up to $2,600 Rebate
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Compare 3 Local South Carolina HVAC Installer Quotes
Verify 2026 Federal 25C Tax Credit & Dominion Energy SC / Duke rebate eligibility and compare turnkey contractor pricing for a Dual-Unit-Ton system (4,000 sq ft).
🛠️ Save 45% on Install
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DIY Pre-Charged Ductless Mini-Split Kits
Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 4,000 sq ft South Carolina home.
☀️ Offset 15.1¢/kWh
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South Carolina Solar + Heat Pump Net-Zero Calculator
See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in South Carolina.