Cost to Run a Oil-Filled Radiator Heater in Montana
Montana's average residential electricity rate is 13.9¢/kWh as of April 2026 — the 7th cheapest in the country, 26% below the U.S. average. At typical usage (8 hours/day), a oil-filled radiator heater here costs $50.71 per month.
Per hour
$0.21
at 700–1,500 W
Per day
$1.67
8 hours/day
Per month
$50.71
365 kWh
Per year
$609
4,380 kWh
By usage level in Montana
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.83 | $25.35 | $304 |
| Typical (8 hrs/day) | $1.67 | $50.71 | $609 |
| Heavy (16 hrs/day) | $3.34 | $101 | $1,218 |
Montana 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 Montana?
At Montana's current average residential rate of 13.9¢/kWh (April 2026), a oil-filled radiator heater with typical usage costs about $1.67 per day, $50.71 per month, or $609 per year.
Is running a oil-filled radiator heater in Montana more expensive than average?
No — it's cheaper. Montana's rate is about 26% below the U.S. average: $50.71 per month here versus $68.58 nationally.
What does electricity cost in Montana right now?
Montana residents pay an average of 13.9¢ per kWh as of April 2026 — the 7th cheapest rate of the 51 U.S. jurisdictions we track.