Engineered Roof Deicing Energy Calculator

thermal technologies protects against ice dams

Engineered Roof Deicing Energy Calculator

Enter the details of your wattage and daily use below to work out how much it costs to run:

Wattage of Appliance
How long is it used each day? Hours
Cents per KWh
Look up your state’s average costs
Cost per day   $
Cost per quarter   $
Cost per year   $

Electric usage is measured in kilowatt-hours.

1 watt-hour is the equivalent of 1 watt of power used for 1 hour.

1 kilowatt-hour is the equivalent of 1000 watt-hours used for 1 hour.

Three values are needed to calculate the cost to use an appliance:

  • The power rating or wattage of the appliance. This is found on the appliance e.g. 50W or 1800W.
  • The time the appliance is switched on in hours (or minutes ÷ 60)
  • The cost per KWh.
  1. Appliance wattage ÷ 1000 = kilowatts (kW)
  2. Kilowatts × (time appliance is switched on in hours) = kilowatt hours (kWh)
  3. Kilowatt hours x cost per KWh is what you pay for that appliance to run.



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