If you have a ceiling fan, run it at the same time as the AC. At medium speed, it could cost even less.įans are cheaper to run than air conditioners, and can be used in place of air conditioners or along with them to save money. Leaving such a fan on high speed 24 hours a day for a month costs about five dollars. A fan with 48-inch blades normally consumes 75 watts, whereas a 52-inch-blade fan needs 90 watts.Ī contemporary DC fan typically costs less than a penny per hour to run at its highest speed. A fan with 36-inch blades requires around 55 watts. How much energy a ceiling fan consumes depends on the size of the fan. Lasko 3733 20″ Box Fan (Fan) requires 58 watts. It’s a 10 inch fan that pushes a huge lot of air therefore 9 watts looks pretty wrong. Subsequently, question is, how many watts does a 10 inch fan use? At the midway, 70 watts, if a kilowatt costs 10 cents per hour, the fan would cost 0.7 cents per hour (0.07 kwh x 10 cents) (0.07 kwh x 10 cents). We went shopping online and noticed average box fans vary from 40-100 watts. Likewise, how many watts per hour does a box fan use? Thus, on average, it would be 75 watts for a box fan. A minimal box fan works at around 50-100 watts.
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