U.S. residential electricity EIA data: July 2026 US average 18.3¢/kWh Updated
Appliances Rates by state Compare Calculators Reports Methodology About

Heating · Delaware

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

The short answer

A typical 1,500W space heater costs about $0.28 per hour to run in Delaware, or $67.46 a month at 8 hours a day.

The estimate uses Delaware’s average residential electricity price of 18.5¢/kWh from EIA (July 2026) — about the same as the national average.

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

Space Heater cost by daily use in Delaware

Cost at 18.5¢/kWh, the Delaware average (EIA, Jul 2026)
Daily usekWh/monthPer dayPer monthPer year
1 hour/day 45.6 $0.28 $8.43 $101
2 hours/day 91.3 $0.55 $16.86 $202
4 hours/day 182.5 $1.11 $33.73 $405
8 hours/day 365.0 $2.22 $67.46 $809
12 hours/day 547.6 $3.33 $101 $1,214
24 hours/day 1,095.1 $6.65 $202 $2,428

Delaware vs other states

At typical use, a space heater costs $809 a year in Delaware — $1,293 less than in Hawaii and $252 more than in Louisiana.

Delaware has the 19th-most-expensive residential electricity of the 50 states and DC. Delaware electricity rates · all states ranked

Electricity price trend in Delaware

18.5¢/kWh in July 2026 — ▲ +11.5% 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.

Questions

Frequently asked questions

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

Running a 1,500W space heater for 24 hours uses about 36.0 kWh, which costs about $6.65 at Delaware’s average rate of 18.5¢/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 Delaware that costs $67.46.

Is it expensive to run a space heater in Delaware?

Delaware has the 19th-most-expensive residential electricity of the 50 states and DC at 18.5¢/kWh — pricier than most. Running a space heater here costs about $809 a year at typical use, compared with $802 at the national average rate.

What is the electricity rate in Delaware right now?

The average residential electricity rate in Delaware was 18.5¢ per kWh in July 2026, according to the latest EIA data — up 11.5% 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.

Space Heater costs in nearby states

Cheapest and priciest states

Comparisons

Sources & method