Does a Water Heater Use a Lot of Electricity?

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Water Heater Electricity Use

Electric water heaters use:

  • 3,000–4,500W when heating

  • 1.5–2 hours per day on average

Daily Cost

Example:

4.5 kW × 2 hours = 9 kWh/day
9 × $0.20 = $1.80/day

Monthly Cost

$1.80 × 30 = $54/month

Energy-Saving Tips

  • Lower thermostat to 120°F

  • Use low-flow showerheads

  • Insulate tank and pipes