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Powerful output, compact design, remarkable energy-saving features: Our whole house electric tankless water heaters are made to perform to the highest standards in terms of comfort and reliability. Intelligent self-modulating technology continually ensures the least amount of energy is used to heat the water. Digital temperature display for easy, accurate temperature control and maximum energy efficiency. A Tempra 20 Trend provides hot water at a constant temperature for up to 1 or 2 bathrooms in warm climates, or 1 bathroom in cool climates. See sizing guide to determine which model is best for you. Stiebel Eltron invented tankless electric water heating technology more than 90 years ago, and is still the industry pioneer and world leader. Our engineering and manufacturing tradition of excellence means you can depend on the performance and reliability of our products.

  • Smart microprocessor technology unique to Tempra water heaters delivers steady water temperature even when flow rate vary as taps are adjusted
  • Self-modulating technology saves energy by adjusting electrical usage
  • Tempra tankless electric water heaters must be correctly sized and you should consult the sizing guide to determine the correct model for you
  • Requires a minimum of 125 Amp total service to the residence, with 2 separate dedicated DP 40 Amp breakers and 2 separate runs of 8-gauge copper wiring for the Tempra 20 Trend itself
  • Requires 240 Volt or 208 Volt electric service, and has a maximum output of 19,200 Watts at 240 Volts or 14,400 Watts at 208 Volts
  • Supplies endless hot water at a constant and steady temperature from 68 to 140°F (20-60°C) that can be set on the front panel digital display
  • Flow rate you achieve from this or any tankless water heater depends on how powerful the unit is and the temperature difference between the incoming cold water and the hot water being delivered
  • 99% efficient and typically result in savings of 15-20% in comparison with electric tank water heaters
  • Must be installed vertically, water fittings pointing down, with detachable connections such as braided flex connectors to allow periodic filter cleaning and flushing for scale, and an anti-scale filter is recommended if hard water is present
  • Professional installation recommended
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1 Shower

Fuel Type:






Wire Size:

2 x 8



Amps (208V):


Amps (240V):


KW (208V):


KW (240V):


Breaker (240V):

2 x 40

Breaker (208V):

2 x 35

Water Connection:


Connection Type:


Height (Inches):


Width (Inches):


Depth (Inches):



3 Year (Parts)

Max Flow (GPM):


Min Flow (GPM):



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