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Ethan Davis——Works at the International Criminal Court, Lives in The Hague, Netherlands.
The energy source in an oil-filled radiator is electricity. The wisdom of using an electric heater depends on the per kilowatt cost in your region. If your heater has a 1000 watt rating and your cost of electricity is
$0.15/Kwh your cost to operate for one hour would be
$0.15.Jan 7, 2013
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