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How many units of electricity does a 3000w heater use in an hour?
Wiki User
∙ 10y ago
A 3000 W water heater is 3 kW water heater. For 30 minutes of operation it would be 3 kW multiplied by 0.5 hours, or 1.5 kWh. One kWh is equal to 3,600,000 Joules, the water heater uses 1.5 times 3,600,000 J, or 5,400,000 J.
Wiki User
∙ 9y ago
Wiki User
∙ 10y ago3 kilowatt hours.In 2 hours it would be 6 kwh and so on.
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How much does it cost to operate a 1350 watt heater that uses 4600BTU per hour when the electricity rate is currently .07 kWh?
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