Cost to Run a Oil-Filled Radiator Heater in Idaho
Idaho's average residential electricity rate is 12.7¢/kWh as of April 2026 — the 2nd cheapest in the country, 32% below the U.S. average. At typical usage (8 hours/day), a oil-filled radiator heater here costs $46.33 per month.
Per hour
$0.19
at 700–1,500 W
Per day
$1.52
8 hours/day
Per month
$46.33
365 kWh
Per year
$556
4,380 kWh
By usage level in Idaho
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.76 | $23.16 | $278 |
| Typical (8 hrs/day) | $1.52 | $46.33 | $556 |
| Heavy (16 hrs/day) | $3.05 | $92.66 | $1,113 |
Idaho 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 Idaho?
At Idaho's current average residential rate of 12.7¢/kWh (April 2026), a oil-filled radiator heater with typical usage costs about $1.52 per day, $46.33 per month, or $556 per year.
Is running a oil-filled radiator heater in Idaho more expensive than average?
No — it's cheaper. Idaho's rate is about 32% below the U.S. average: $46.33 per month here versus $68.58 nationally.
What does electricity cost in Idaho right now?
Idaho residents pay an average of 12.7¢ per kWh as of April 2026 — the 2nd cheapest rate of the 51 U.S. jurisdictions we track.