You should see this label on your water heater’s side, typically near the heating element panel. Your water heater has a label containing specifications and other vital information, including its power rating.
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How to Find the Correct Water Heater Wattage Information Its maximum power consumption is still 4,500 watts. It would be best not to think that your water heater will use 9,000 watts. However, do not combine both element’s power ratings to determine the water heater’s total energy consumption.įor example, suppose your two-element water heater says it consumes 4,500 watts.
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Most manufacturers put the power rating for each heating element. If you have a two-element water heater, check the specifications label. They are ideal for households with modest hot water needs. These units come with a single element and run on 120-volt systems, mostly requiring about 1,125 watts to operate. Some water heaters have a lower power rating, ranging from 1500 watts to 3000 watts. By comparison, the 50-gallon, 4500-watt Rheem MR50245 Marathon only provides 20 gallons per hour. Smith ENS-50 ProMax 5 0-gallon electric water heater has an industry-leading recovery rate of 21 gallons per hour. These devices typically have two heating elements that allow for a quicker recovery rate.Ī hot water heater’s recovery rate reflects its ability to provide hot water within a given period of time.įor example, the 4500-watt A.O. The majority of electric water heaters use anywhere between 4500 watts and 5500 watts as a dedicated 240-volt electrical system. Number of Watts Required to Operate a Water Heater Computing Your Annual Water Heater-related Power Consumption.Why Determining a Water Heater’s Wattage Rating Is Important.How to Find the Correct Water Heater Wattage Information.Number of Watts Required to Operate a Water Heater.