BOSCH PowerStar AE125 Tankless Water Heater


BOSCH PowerStar AE125 is a whole house electric tankless water heater with a capability to serve one major application. In climates where ground water temperature is above 60°F, it can handle two major applications running simultaneously. And since it is run by electricity, venting is not required.

  • AE125 delivers 4.0 gallons of hot water per minute at 45°F temperature rise.
  • It has 94% energy efficiency rating.
  • It has an energy factor of 0.94.
  • It is equipped with durable poly heating elements.
  • The activation rate is 0.8 gallon per minute.
  • The flow sensor provides a constant temperature adjustment by automatically adjusting the number of heating elements based on the set temperature and the volume of water discharged.
  • It is provided with thermal cut-out for safety. In any case the temperature of any of the heater modules gets too high, the cut-out will cut the power to that heater module.
  • There is no temperature/pressure relief valve necessary (check local codes)
  • The temperature control knob allows the desired output temperature to be set between 95°F and 131°F.
  • It has a compact design, 15 ½” x 15 ¼” x 4 ½”, and weighs 22 lbs. so it can be easily installed
  • It is covered with a 10-year warranty for heat exchanger and 1 year on parts.

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