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Cost to run a electric water heater
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$0.68/hour
Electric Water Heater at 4,000 W and 17¢ per kWh · 12.00 kWh per day at 3 h/day
Your electric water heater
Tank water heaters use 3,000-5,500 W elements; a family typically runs them 2-4 hours a day. Heat-pump models use about a third.
Running cost by electricity price (4,000 W, 3 h/day)
| Price/kWh | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| 10¢ | $0.400 | $1.20 | $36.48 | $438 |
| 13¢ | $0.520 | $1.56 | $47.42 | $569 |
| 15¢ | $0.600 | $1.80 | $54.72 | $657 |
| 17¢ | $0.680 | $2.04 | $62.02 | $745 |
| 20¢ | $0.800 | $2.40 | $72.96 | $876 |
| 25¢ | $1.000 | $3.00 | $91.20 | $1,095 |
| 30¢ | $1.200 | $3.60 | $109.44 | $1,314 |
| 35¢ | $1.400 | $4.20 | $127.68 | $1,533 |
FAQ
How much does it cost to run a electric water heater?
At 4,000 W for 3 hours a day and 17¢/kWh: about $0.68 per hour, $2.04 per day and $62.02 per month.
How many watts does a electric water heater use?
Tank water heaters use 3,000-5,500 W elements; a family typically runs them 2-4 hours a day. Heat-pump models use about a third.
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