If you are planning to replace your aging electric water heater, you can consider buying a Bosche PowerStar AE115 electric tankless water heater, which will give you more benefits in terms performance and energy bills.

With Bosche PowerStar AE 115, your operational cost will come down drastically, compared with a tank water heater. The unit can provide 3.7 gallons of hot water per minute at 105°F for 2 sinks simultaneously or one shower or bathtub. You will get endless hot water supply.

Bosche PowerStar AE 115 has 90% energy efficiency, with an activation rate of .6 gpm. Other features include, durable poly heating elements, electronic flow switch, 3/4” brass NPT fittings, external temperature knob, filter screen on inlet and thermal cut-out for safety. The unit requires no temperature / pressure relief valve, and comes fitted with a flow sensor to provide a constant output temperature.

Based on the US Department of test method for water heater, AE115 model will operate approximately at a cost of $478.

Bosche PowerStar AE115 is manufactured by Applied Energy, formerly Redring and has manufactured electric ondemand water heaters over 40 years.
Features:

90% efficiency rating
Weight :   20lbs
Dimensions : 15½"x15¼"x4½"
Water Fittings : ¾" male NPT
Volts : 240/208v
Kilowatts  : 17.25/13 kW
Amps 80 US: 2x40 amps CAN: 1x80 amps
Wire Size US: minimum #8 AWG
(4 conductors & ground) Canada : minimum #4 AWG (2 conductors & ground)
Durable poly heating elements
Electronic flow switch
¾" brass NPT fittings
External temperature control knob
Activation rates of .6 gallons per minute
Filter screen on inlet
Thermal cut-out for safety
No temperature/pressure relief valve necessary
Flow sensor to provide a constant output temperature

Click Here to Learn About  Bosch Gas Water Heater