With the growing cost of heat, spot-heating pieces of your home that you use most often starts to make more financial sense. You may set your thermostat at a cool temperature and use a space heater to warm only the living room or only the bedroom. Picking a space heater based on which it is meant to do and knowing how much it will cost to function go together in the decision-making process.

Pennies per Hour

Divide the amount of watts the space heater consumes by 1,000. Multiply the result by the per hour cost of your electricity. As an example, if your heater uses 1,500 watts along with your electricity cost is 12 cents per kilowatt-hour, divide 1,500 by 1,000, that equals 1.5. Multiply this by 12 cents per kilowatt hour to get the result of 18. The heater costs 18 cents per hour to operate. Your rate per kilowatt-hour is recorded on your electric bill or is available by calling you electricity supplier.

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