Cost to Run a Oil-Filled Radiator Heater in Washington
Washington's average residential electricity rate is 14.4¢/kWh as of April 2026 — the 12th cheapest in the country, 23% below the U.S. average. At typical usage (8 hours/day), a oil-filled radiator heater here costs $52.53 per month.
Per hour
$0.22
at 700–1,500 W
Per day
$1.73
8 hours/day
Per month
$52.53
365 kWh
Per year
$631
4,380 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.86 | $26.27 | $315 |
| Typical (8 hrs/day) | $1.73 | $52.53 | $631 |
| Heavy (16 hrs/day) | $3.46 | $105 | $1,261 |
Washington 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 Washington?
At Washington's current average residential rate of 14.4¢/kWh (April 2026), a oil-filled radiator heater with typical usage costs about $1.73 per day, $52.53 per month, or $631 per year.
Is running a oil-filled radiator heater in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 23% below the U.S. average: $52.53 per month here versus $68.58 nationally.
What does electricity cost in Washington right now?
Washington residents pay an average of 14.4¢ per kWh as of April 2026 — the 12th cheapest rate of the 51 U.S. jurisdictions we track.