man! i forgot to turn off my iron This morning and I thinking about the light bill
2007-10-23 12:13:36 · 3 answers · asked by raysjullio 1 in Science & Mathematics ➔ Engineering
My iron is 1400 watts, or 1.4 kilowatts. If left on for 10 hours, it would consume 14 kilowatt-hours. Which alone, costs about $1.20 in my area. (roughly $.08 per kilowatt-hour). Well, actually my iron would turn itself off.
2007-10-23 12:36:10 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Hi,
Actually, an iron isn't using power all of the time it's on. It only uses enough power to maintain the set temperature. For example, if you're ironing a dampened shirt, the on portion of it's duty cycle is longer than if it's just sitting with the ironing plate touching nothing.
I have no idea what the duty cycles of irons are when not being used. If you had a clip-on ammeter, you could hook up something to get a close approximation. You could make a wild guess and assume that it has a 50% duty cycle, look on the label and see what the wattage rating is, find the cost of power in your area and do the calculation.
FE
FE
2007-10-23 13:05:32 · answer #2 · answered by formeng 6 · 0⤊ 0⤋
an iron consumes at least 1000 watts so if you left it on for 12 hours you consumed at least 12.0 kwh
2007-10-23 12:38:38 · answer #3 · answered by karen 1 · 0⤊ 0⤋