U.S. residential electricity EIA data: July 2026 US average 18.3¢/kWh Updated

Heating · Connecticut

How Much Does It Cost to Run a Space Heater in Connecticut?

The short answer

A typical 1,500W space heater costs about $0.36 per hour to run in Connecticut, or $88.19 a month at 8 hours a day.

Connecticut’s average residential rate was 24.2¢ per kWh in July 2026 (EIA), 32% above the US average.

Source: U.S. EIA, July 2026 data · Updated

Space Heater cost by daily use in Connecticut

Cost at 24.2¢/kWh, the Connecticut average (EIA, Jul 2026)
Daily usekWh/monthPer dayPer monthPer year
1 hour/day 45.6 $0.36 $11.02 $132
2 hours/day 91.3 $0.72 $22.05 $265
4 hours/day 182.5 $1.45 $44.10 $529
8 hours/day 365.0 $2.90 $88.19 $1,058
12 hours/day 547.6 $4.35 $132 $1,587
24 hours/day 1,095.1 $8.70 $265 $3,175

Connecticut vs other states

At typical use, a space heater costs $1,058 a year in Connecticut — $1,044 less than in Hawaii and $501 more than in Louisiana.

Connecticut has the 11th-most-expensive residential electricity of the 50 states and DC. Connecticut price per kWh · all states ranked

Electricity price trend in Connecticut

24.2¢/kWh in July 2026 — ▼ −12.5% from a year earlier.

How to lower the cost of running a space heater

A space heater is a resistance heater: virtually every watt it draws becomes heat, so a 1,500W model uses 1.5 kWh for every hour it runs on high. The low setting on most models is around 750W. Ceramic, oil-free fan heaters and infrared models all have the same electricity cost for the same wattage — the difference is how the heat is delivered, not efficiency. A built-in thermostat lowers the real-world cost because the heater cycles off once the room reaches temperature; our estimate assumes it runs at full power for the hours you enter, which gives you a safe upper bound.

  • Heat the room you are in, not the whole house — lower your central thermostat a few degrees while the space heater runs.
  • Use a model with a thermostat and an eco mode so it cycles off when the room is warm.
  • Close doors and block drafts so the heat stays where you need it.
  • Winters in Connecticut are long, so heating appliances often run more hours here than the national default — adjust the hours above to match your home.

Questions

Frequently asked questions

How much does it cost to run a space heater for 24 hours in Connecticut?

Running a 1,500W space heater for 24 hours uses about 36.0 kWh, which costs about $8.70 at Connecticut’s average rate of 24.2¢/kWh.

How many kWh does a space heater use per month?

At 8 hours a day, a typical space heater uses about 365 kWh a month. In Connecticut that costs $88.19.

Is it expensive to run a space heater in Connecticut?

Connecticut has the 11th-most-expensive residential electricity of the 50 states and DC at 24.2¢/kWh — pricier than most. Running a space heater here costs about $1,058 a year at typical use, compared with $802 at the national average rate.

What is the electricity rate in Connecticut right now?

The average residential electricity rate in Connecticut was 24.2¢ per kWh in July 2026, according to the latest EIA data — down 12.5% from a year earlier.

Is it cheaper to run a space heater or central heat?

Heating one small room with a 1,500W space heater is usually cheaper than heating the whole house with an electric furnace. A modern heat pump, however, delivers 2–4 units of heat per unit of electricity, so it can heat a room far more cheaply than any space heater.

Do ceramic or infrared space heaters use less electricity?

No. All electric resistance heaters turn about 100% of their electricity into heat. A 1,500W ceramic heater and a 1,500W infrared heater cost the same per hour.

Sources & method