Guide
How much does a 1500W oil radiator cost to run?
A 1500W oil radiator can look more moderate than a fan heater, but long winter runtime still matters. The real question is how many hours it heats and what tariff you pay.
Short answer
At 1500W, an oil radiator can become a noticeable monthly cost if it runs several hours each day. The fastest way to check it is to compare your own schedule against a space heater or mini split alternative.