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Connecticut (CT) Heating & Cooling Cost Calculator (2026)

Verified 2026 Electricity Rate: 24.3¢/kWh (Eversource / United Illuminating (PURA))  |  Heating Degree Days: 5700  |  Cooling Degree Days: 720

2,000 Sq Ft Heat Pump Bill
$98/mo
CT Electricity / Gas Rate
24.3¢ / $1.85
15-Yr Savings vs Baseboard
+$31,935

Connecticut Annual Heating & Cooling Bills by Home Size

In Connecticut, a 2,000 sq ft home averages $1,174/year ($98/mo) using a cold-climate heat pump ($1,100/yr winter heating + $74/yr summer cooling), compared to $1,051/year with a natural gas furnace and $3,543/year with electric baseboards.

Home Size Heat Pump (COP 3.1) Gas Furnace + AC Baseboard + Window AC 15-Yr Heat Pump Savings
1,000 Sq Ft $587/yr ($49/mo) $526/yr ($44/mo) $1,771/yr ($148/mo) +$14,160
1,500 Sq Ft $880/yr ($73/mo) $789/yr ($66/mo) $2,657/yr ($221/mo) +$23,055
2,000 Sq Ft $1,174/yr ($98/mo) $1,051/yr ($88/mo) $3,543/yr ($295/mo) +$31,935
2,500 Sq Ft $1,467/yr ($122/mo) $1,314/yr ($110/mo) $4,429/yr ($369/mo) +$40,830
3,000 Sq Ft $1,761/yr ($147/mo) $1,577/yr ($131/mo) $5,314/yr ($443/mo) +$49,695
3,500 Sq Ft $2,054/yr ($171/mo) $1,840/yr ($153/mo) $6,200/yr ($517/mo) +$58,590
Launch Interactive Connecticut Calculator → View Connecticut 2026 HVAC Rebates & Install Costs →
💰 Up to $2,600 Rebate

Compare 3 Local Connecticut HVAC Installer Quotes

Verify 2026 Federal 25C Tax Credit & Eversource / United Illuminating (PURA) rebate eligibility and compare turnkey contractor pricing for a 3.0-Ton system (2,000 sq ft).

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🛠️ Save 45% on Install

DIY Pre-Charged Ductless Mini-Split Kits

Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 2,000 sq ft Connecticut home.

Size DIY Mini-Split Kit →
☀️ Offset 24.3¢/kWh

Connecticut Solar + Heat Pump Net-Zero Calculator

See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in Connecticut.

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Select Your Home Square Footage in Connecticut

800 Sq Ft1,000 Sq Ft1,200 Sq Ft1,500 Sq Ft1,800 Sq Ft2,000 Sq Ft2,200 Sq Ft2,500 Sq Ft2,800 Sq Ft3,000 Sq Ft3,500 Sq Ft4,000 Sq Ft

Heat Pump & Central AC Operating Cost by Tonnage in Connecticut

1.5-Ton (18,000 BTU)2-Ton (24,000 BTU)2.5-Ton (30,000 BTU)3-Ton (36,000 BTU)4-Ton (48,000 BTU)5-Ton (60,000 BTU)

15-Year HVAC Equipment Lifespan Comparisons in Connecticut

Heat Pump vs. Natural Gas FurnaceDuctless Mini-Split vs. Electric BaseboardHeat Pump vs. Heating Oil Furnace20-SEER2 Inverter AC vs. 14-SEER2 Standard ACGeothermal (COP 4.2) vs. Air-Source Heat PumpHeat Pump vs. Propane FurnaceHeat Pump vs. Central Electric FurnaceDual-Fuel Hybrid System vs. All-Electric Heat Pump