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

Heating · Arizona

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

The short answer

A typical 1,500W space heater costs about $0.23 per hour to run in Arizona, or $56.14 a month at 8 hours a day.

That’s based on Arizona’s average residential rate of 15.4¢/kWh (EIA, July 2026), 16% below the US average.

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

Space Heater cost by daily use in Arizona

Cost at 15.4¢/kWh, the Arizona average (EIA, Jul 2026)
Daily usekWh/monthPer dayPer monthPer year
1 hour/day 45.6 $0.23 $7.02 $84.21
2 hours/day 91.3 $0.46 $14.04 $168
4 hours/day 182.5 $0.92 $28.07 $337
8 hours/day 365.0 $1.85 $56.14 $674
12 hours/day 547.6 $2.77 $84.21 $1,010
24 hours/day 1,095.1 $5.54 $168 $2,021

Arizona vs other states

At typical use, a space heater costs $674 a year in Arizona — $1,429 less than in Hawaii and $117 more than in Louisiana.

Arizona has the 19th-cheapest residential electricity of the 50 states and DC. electricity prices in Arizona · all states ranked

Electricity price trend in Arizona

15.4¢/kWh in July 2026 — ▲ +0.3% 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.
  • Heating seasons in Arizona are short, so most households only run a space heater for a few weeks a year.

Questions

Frequently asked questions

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

Running a 1,500W space heater for 24 hours uses about 36.0 kWh, which costs about $5.54 at Arizona’s average rate of 15.4¢/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 Arizona that costs $56.14.

Is it expensive to run a space heater in Arizona?

Arizona has the 19th-cheapest residential electricity of the 50 states and DC at 15.4¢/kWh — cheaper than most. Running a space heater here costs about $674 a year at typical use, compared with $802 at the national average rate.

What is the electricity rate in Arizona right now?

The average residential electricity rate in Arizona was 15.4¢ per kWh in July 2026, according to the latest EIA data — up 0.3% 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