Water Heater Timer

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A water heater timer helps to cut down on utility bills.
Problem: A standard water heater keeps multiple gallons of water heated all the time whether they're needed or not, which is inefficient and contributes to higher utility bills.
 
Solution: A water heater timer lets you set specific on and off times for water heater operation, thus cutting down on utility bills.
 
*This project only works on electric water heaters.
  1. Turn off the breaker that controls the power to the water heater.
  2. Select a location near the water heater for mounting the casing (and timer).
  3. Remove the timer from the casing, and remove the knockouts on the casing. Then secure the casing with the fasteners provided.
  4. Place connectors in the knockout holes on the bottom of the casing.
  5. Use a circuit tester to be certain the power to the water heater is shut off.
  6. Remove the power cable coming from the main electrical panel to the water heater, and re-route it through one of the connectors into one side of the water heater timer.
  7. Run a new cable (same gauge as the existing cable) from the timer to the water heater. Be sure to leave enough slack for making the connections.
  8. Replace the timer in the casing.
  9. Strip 1/2" of insulation from the tip of each wire inside the casing. Connect the ground wire to the ground plug on the timer, and attach the wires to the appropriate terminals.
  10. Set the timer to turn off and on at different times as directed by the manufacturer's instructions.
  11. Turn the power back on at the circuit breaker box.