PowerStar Electric Tankless Water Heater
Technical and Specifications for Models AE 115 / AE 125


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Flow Rates PowerStar AE 115 & AE 125 *
Model 45°F Rise 50°F Rise 60°F Rise 70°F Rise 80°F Rise
AE 115 2.6 gpm 2.3 gpm 1.9 gpm 1.7 gpm 1.5 gpm
AE 125 4.0 gpm 3.7 gpm 3.0 gpm 2.6 gpm 2.3 gpm
*Flow rates calculated at 240 volts, lower voltage input will reduce temperature rise. For optimal performance of both units, use one major water source at a time. Note: AE 115 will have a slow bathtub or washing machine fill time.


PowerStar Sizing Chart
Model Capacity
AE 115 Provides 2.0 gallons per minute for water usage at 115°F: sink, dishwasher (not simultaneously)

Provides 2.3 gallons per minute for water usage at 105°F: shower, laundry, bathtub (bathtub fills in about 13 minutes)
AE 125 Provides 3.0 gallons per minute for water usage at 115°F: 2 sinks at once, dishwasher.

Provides 3.7 gallons per minute for water usage at 105°F: 2 sinks at once or 1 shower, (bathtub fills in about 7 minutes).
Map of where PowerStar's should be installed
AE115 is not recommended in climates where average annual
ground water temperature is less than 60°F.


Specifications AE115 & AE125

Model Volts Kilowatts Amps Wire Size Weight Dimensions
AE 115 240v
208v
19 kw
14.25kw
80 (2 x 40a)
69 (2 x 40a)
8 ga. (4 connectors)
8 ga. (4 connectors)
Minimum 150 Amp Service
23 lbs. 15 1/2" x 15 1/4" x 4 1/2"
AE 125 240v
208v
28 kw
21kw
120 (3 x 40a)
101 (3 x 40a)
8 ga. (6 connectors)
8 ga. (6 connectors) Minimum 200 Amp Service
25 lbs. 15 1/2" x 15 1/4" x 4 1/2"

10 Year Warranty

PowerStar’s superior design and construction is backed by a 1 year warranty on parts and a 10 year warranty on the heat exchanger.
See Warranty Page

PowerStar AE 115 & AE 125

  • 95% efficiency rating – maximum efficiency
  • Solid copper heat exchanger
  • Electronic flow switch
  • 3/4" brass NPT fittings
  • External temperature control knob
  • Activation rates of .6 gallons per minute (AE115) and .8 gpm (AE125)
  • Filter screen on inlet
  • Thermal cut-out for safety
  • No temperature/pressure relief valve necessary (check local codes)
  • Flow sensor to provide a constant output temperature
  • 10 year warranty
  • No standby heat loss... saves on energy
  • Mounts almost anywhere - save on installation costs
  • Electric Convenience


For more information download an
installation manual in pdf format.


PowerStar Product Page