Question: how many kilowatts does a room air conditioner use per hour?
Answer: Central Air-Conditioners use on average 1-kilowatt hour (kWh) per ton per hour. A 4-ton air-conditioner will use approximately 4 kWh per hour. If a four-ton air-conditioner ran for 12 of the 24 hours in a day the usage would be 48 kWh per day.