Survey...Electrical appliances in your house...?

I'm doing a survey for science and I would appreciate if you knew of a web page with the average usage of watts (per hour) of: desk lamp, TV, hair dryer, curling iron, coffee kettle, washing machine, dryer, iron, fridge, microwave, computer.....etc. you get the point. It would be of much greater help if you knew the wattage of the electrical appliances in your house. Thanks for participating!!

Survey...Electrical appliances in your house...?
Here are some approximate values:





desk lamp = 60 watts


TV = 100 - 150 watts


hair dryer = 1200 watts


curling iron = 50 watts (guessing on this one)


coffee kettle = 1000 watts


washing machine = 600 watts


dryer = 4500 watts (if electric heating element)


iron = 1000 watts


fridge = 150 watts


microwave = 1100 watts


desktop computer with LCD monitor = 250 watts


laptop computer = 70 watts





The values above are my estimates based on actual testing. I'm not sure how all these numbers compare to the link below.





Keep in mind that some of these applicances are not used for an hour. If you are trying to determine your home's usage, try taking some measurements on your electric meter.





Count the revolutions of the rotating disk in one minute:





RPM x 60 x Kh = watts.





Kh is a factor on the face of the meter. This value will vary depending on the type of meter. Common values in the US include 3.6, 7.2, and 12. However other values also exist.





Do the "stopwatch test" twice. Once with minimal equipment on, and then again after turning on as many applicances as you can.
Reply:You can find these ratings on the appliance or bulbl itself , then do the math. For example , i just looked at my wifes straightener, it is rated 75 watts. (75W on inside of handle)


Now multiply this number by hours used and divide by 1000. That will give you kilowatt per hour. All appliances will have this rating on them somewhere, usually on a white sticker. Usually the rating is given in amps, though indicated by a number followed by an A. Multiply this number by 120 to convert to wattage, then use formula above. Hope this helps ya.

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