Cost to Run a Oil-Filled Radiator Heater in Illinois
Illinois's average residential electricity rate is 20.5¢/kWh as of April 2026 — the 36th cheapest in the country, 9% above the U.S. average. At typical usage (8 hours/day), a oil-filled radiator heater here costs $74.78 per month.
Per hour
$0.31
at 700–1,500 W
Per day
$2.46
8 hours/day
Per month
$74.78
365 kWh
Per year
$898
4,380 kWh
By usage level in Illinois
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.23 | $37.39 | $449 |
| Typical (8 hrs/day) | $2.46 | $74.78 | $898 |
| Heavy (16 hrs/day) | $4.92 | $150 | $1,796 |
Illinois vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a oil-filled radiator heater in Illinois?
At Illinois's current average residential rate of 20.5¢/kWh (April 2026), a oil-filled radiator heater with typical usage costs about $2.46 per day, $74.78 per month, or $898 per year.
Is running a oil-filled radiator heater in Illinois more expensive than average?
Yes. Illinois's electricity costs about 9% more than the U.S. average, so the same usage costs $74.78 per month here versus $68.58 nationally.
What does electricity cost in Illinois right now?
Illinois residents pay an average of 20.5¢ per kWh as of April 2026 — the 36th cheapest rate of the 51 U.S. jurisdictions we track.