WattCostCalc

1,500-Watt vs 2,500-Watt Electric Radiator: Running Cost Compared

A 2,500-watt electric radiator costs $31.50 more per month than a 1,500-watt electric radiator ($383.25 per year), assuming 6 hours a day at $0.175/kWh. Per hour the difference is $0.175.

Side by side

1,500-watt Electric Radiator2,500-watt Electric Radiator
Power1,500 W2,500 W
Hours per day66
Cost per hour$0.263$0.438
Cost per day$1.58$2.63
Cost per week$11.03$18.38
Cost per month$47.25$78.75
Cost per year$574.88$958.13
Energy per year3,285 kWh5,475 kWh

Based on $0.175 per kWh (US average).

Which should you choose?

Higher wattage does not always mean more heat or output per dollar, and it does not always mean it runs longer. A bigger unit may reach the target temperature faster and then cycle off. Compare size to your room or job before you decide.

Want your own numbers? Open either calculator and enter your hours and rate: 1,500-watt Electric Radiator or 2,500-watt Electric Radiator.

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