Yes its for 3-4 months. When you told me you paid around $70 I wondered how could that be. I'm paying around $65/month and that includes using electric throw as I said. I have calculated the cost of using this electric throw and its virtually nothing compared to running a heater @Historylover An environmental scientist taught me how to calculate the costs of having an appliance on. Here are the calculations she gave me:
How much do your appliances cost to run? You need to know this to keep bills down
You need to know 3 things to work out how much your appliance costs to run which will be explained in further detail below:
* How much electricity the appliance uses in watts - convert this to kW
* How many hours you use the appliance
* The rate that you pay for electricity (convert this into dollars)
So, to identify how much electricity an appliance uses look for the label on the back of the appliance showing the Watts (W).
Most new appliances have an energy star label. The number in the red box on the energy rating sticker tells you how many Kilowatts (kWh) the appliance will use in one year. Try and purchase an appliance with the lowest number of kWH you can afford.
How many hours is the appliance used? 3 and a half hours = 3.5 hours, 3 and a 1/4 hours = 3.25 hours
The rate is found on the back of your electricity bill in dollars, check the tariff price
Therefore for example if you had a 2000Watt (2kW) heater and ran it for 6 hours each day, it would cost $3 per day, the maths are:
You convert 2000Watts to kW ie 2kW
multiply by hours used 6 hours
then multiply by tariff on the back of the bill
2kW x 6 hours x $0.25 tariff = $3 It will therefore cost $3 per day
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