How Much Does a 1500-Watt Heater Cost to Run?

A 1500-watt electric heater uses 1.5 kilowatts while operating at its rated power. Its running cost depends mainly on operating hours and the electricity rate.

At $0.16 per kWh, running a 1500-watt heater for 5 hours per day for 30 days costs 1.5 × 5 × 30 × $0.16 = $36.00 per month. At 8 hours per day, the estimate is $57.60.

These figures assume full power continuously. A thermostat may switch the heating element on and off, making actual consumption lower.

Find the heater wattage on its label and enter it into the WattBillGuide Electricity Cost Calculator. If the heater has multiple power settings, calculate each setting separately.

Use the WattBillGuide Electricity Cost Calculator for your own numbers.