How to Install a Hot Water Heater Timer


If you are looking for ways to reduce your power bill, one way to save on electricity is to install a hot water heater timer. The timer will turn off during the night when you do not need the heat and during the day during the peak electricity demand times. Installing a timer on your water heater is fairly simple and inexpensive and it will pay for itself in saved heating costs in approximately a year.

Things You'll Need

  • Drill
  • Pencil
  • Phillips head screwdriver
  • Flat-head screwdriver
  • No. 10 electrical wire
  • Wire stripper
  • Remove the timer from its case and mount the timer case to a nearby wall using screws. Hold the case up to the wall and mark the holes with a pencil. Drill pilot holes into the wood and then screw the case into place.

  • Turn off the breaker to your water heater.

  • Unscrew the top plate on top of the water heater in order to reveal the electric cord. Remove the cord and thread it through the knockout hole on the bottom of the case.

  • Run the No. 10 electrical wire from the case to the water heater. Use the wire stripper to strip at least a half an inch to an inch of insulation from the wire and connect it to the top of the water heater. Match the color-coded wires together.

  • Strip the other end of the wire. Press the timer back into the casing. Attach the corresponding wires to the lugs on the timers. Bend the wires around each lug so they fit snugly. Tighten the screws with a flat-head screwdriver.

  • Flip the breaker to your water heater back on.

  • Set the timer to turn off when the hot water heater will not see use and turn on slightly before you need hot water. Remember the water will require some time to heat

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