A portable electric space heater typically uses 1,500 watts on its high setting. Ceramic, oil-filled radiator, and infrared heaters all draw similar wattage.
watts
hrs/day
$/kWh
Daily Cost
$1.92
12.0 kWh
Monthly Cost
$57.60
360.0 kWh
Yearly Cost
$700.80
4380.0 kWh
For perspective...
At $700.80/year, this is a major energy expense — equivalent to a car payment. Strongly consider more efficient alternatives.
Energy-Saving Tips for Your Space Heater
Use a programmable thermostat to avoid running it when you're away
Close doors to the room you're heating to reduce waste
An oil-filled radiator stays warm after being turned off, saving some energy