Heating · Arizona
How Much Does It Cost to Run an Electric Baseboard Heater in Arizona?
The short answer
In Arizona, an electric baseboard heater drawing 1,500W costs about $0.23 per hour — roughly $56.14 a month if it runs 8 hours a day.
The estimate uses Arizona’s average residential electricity price of 15.4¢/kWh from EIA (July 2026) — 16% below the national average.
Source: U.S. EIA, July 2026 data · Updated
Electric Baseboard Heater cost by daily use in Arizona
| Daily use | kWh/month | Per day | Per month | Per 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, an electric baseboard 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. Arizona price per kWh · 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 an electric baseboard heater
Baseboard heaters are wall-mounted resistance heaters wired into a 240V circuit. Like space heaters, they convert electricity to heat at about 100%, and size determines cost: roughly 250 watts per linear foot. A home heated entirely by baseboards may have several units per room, so multiply by the number of units running. Enter the hours per day the heater is actually on — line-voltage thermostats cycle them on and off to hold the set temperature.
- Install programmable line-voltage thermostats to lower temperatures when rooms are empty.
- Keep furniture and curtains at least 6 inches away so heat can circulate.
- Heating a whole home with baseboards? A ductless mini-split heat pump can cut heating costs by half or more.
- Heating seasons in Arizona are short, so most households only run a electric baseboard heater for a few weeks a year.
Questions
Frequently asked questions
How much does it cost to run an electric baseboard heater for 24 hours in Arizona?
Running a 1,500W electric baseboard 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 an electric baseboard heater use per month?
At 8 hours a day, a typical electric baseboard heater uses about 365 kWh a month. In Arizona that costs $56.14.
Is it expensive to run an electric baseboard heater in Arizona?
Arizona has the 19th-cheapest residential electricity of the 50 states and DC at 15.4¢/kWh — cheaper than most. Running an electric baseboard 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.
How many watts does a baseboard heater use per foot?
About 250 watts per linear foot, so a 4-foot heater is about 1,000W and an 8-foot heater about 2,000W.
Electric Baseboard Heater costs in nearby states
Other appliances in Arizona
Cheapest and priciest states
Comparisons
Sources & method
- Electricity rates: U.S. Energy Information Administration, Electric Power Monthly — average residential retail price, July 2026 (latest available). Retrieved .
- CO₂: EIA State Electricity Profiles, 2024 emissions rate of in-state power generation.
- Default usage for electric baseboard heater: 8 hours a day. Typical power 1,500W.
- Formulas, duty cycles and limitations: methodology. Data download: open data (CC BY 4.0).