Stiebel Eltron Tempra 20 Trend Tankless Water Heater

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Stiebel Eltron Tempra Series Brochure
Stiebel Eltron Tempra Series Brochure
(Adobe PDF)

Electrical Requirements & Installation Information for the Stiebel Eltron Tempra 20
Electrical Requirements & Installation Information
Stiebel Eltron Tempra 20 Trend (White)
Stiebel Eltron Tempra 20 Trend (White) reviews
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Stiebel Eltron Tempra 20 Trend (White)

MSRP: US$784
Our Reg. Price: $599
Sale Price: US$596.00
You save: $188.00

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The new Tempra 20 Trend replaces the discontinued Tempra 20B.

It offers all the same features of the Tempra 20B, with a new digital display, in a modern white powder-coated case.

  • 19.2 kW's of Power
  • Thermostatically Controlled
  • Requires 125 Amp Service
The Stiebel Eltron Tempra 20 Trend, with a maximum power output of 19.2 KW, is designed for whole house applications in regions where the incoming water temperature is above 60°, and is therefore suitable as a whole house water heater in the southern U.S. and in some warmer northern climates.

It is also a popular choice for summer use vacation properties in northern climates where the electrical service does not permit the installation of a larger model. Furthermore, it is frequently used as a point-of-use heater where more demanding flow rates are required.

Like all Tempra Series tankless water heaters, the Tempra 20 features true microprocessor-controlled temperature regulation and dial selector which allows you to set the desired output water temperature at any level between 86 and 140F (30 and 60C).

It is one of the only tankless water heaters on the market that features a true thermostatic temperature control and full power-modulation based on both the incoming water temperature and the water flow rate.

The Tempra 20 Trend will automatically adjust its power output to accommodate changes in the incoming water temperature and flow rate so it can precisely maintain the desired output temperature. The result is the most precise temperature control of any tankless water heater on the market today!

The trend towards increased energy efficiency is here to stay with the Tempra 20. Join the Tempra trend today.

Maximum Flow Rate in Gallons Per Minute at 105°F Output temp
Incoming Water Temp: Flow Rate (GPM)
40°F 2.0 GPM
45°F 2.2 GPM
50°F 2.4 GPM
55°F 2.6 GPM
60°F 2.9 GPM
65°F 3.3 GPM
70°F 3.7 GPM
75°F 4.4 GPM
* This chart is based on 240v input.
Please review the Stiebel Eltron Tempra Brochure
for temp rise data at 208v input.
Do You Have Hard Water?
If your water hardness trends above 7 grains per gallon (GPG) or 120 mg/l (ppm), you should consider hard water treatment prior to your tankless water heater. If your hardness exceeds 12 GPG or 200 mg/l (ppm), hard water treatment is strongly recommended.

Hard water treatment helps maintain performance and efficiency, ensures optimal water flow and pressure, and protects your heater from pre-mature failure due to mineral build-up inside the heating module and other components.

ecoTAC discount offer

Stiebel Eltron Tempra 20 Trend Specifications
Thermostatically Controlled? Yes, temperature control with full power modulation based on flow rate and incoming water temperature.
KW 19.2 KW @ 240v / 14.4 KW @ 208v
Voltage: 208 - 240 volts / single phase / 50 - 60 Hz
Max. Amps: 80 AMPS @ 240v / 70 AMPS @ 208v
Breakers Required:*  2 x 40 AMP breakers (depends on local codes)
Wiring:*  Minimum 2 x #8 AWG Copper (depends on local codes)
Dimensions: 16.6 x 14.5 x 4.6" (42.0 x 36.8 x 11.7 cm)
Weight: 15.4 lbs (7.3 KG)
Pipe Fittings:  3/4" NPT
Energy Efficiency: 99%+
Activation Flow Rate: 0.50 GPM / 1.9 LPM
Max. Water Pressure:    150 psi (tested to 300 psi)
Warranty: 7 years against leakage / 3 years against defects in workmanship & materials
Safety: ETL Listed (US & Canada) - meets all applicable standards, including ANSI/UL 499 (USA) and CSA-E335-1/3E-94 (Canada)
Protection: microprocessor-based thermostatic temperature control (flow rate and temperature modulating) with thermal hi-limit cut-out switch monitoring each heating module
GTIN: 0094922100641

* Breaker size and wire gauge must meet all applicable local, state, provincial, and national electrical codes for your area - these are only guidelines that will apply to most installations. Some codes require use of electrical sub-panel for installation, especially when heater is not mounted within line-of-sight of the main electrical panel. Wiring should be sized to maintain a voltage drop of less than 3% under load. Please consult your electrician for more details.

Please note: A minimum 125 AMP household electrical service is highly recommended and will likely be required to install this model. If you are unsure of your electrical capacity in your home, please consult your electrician or contact us for assistance before ordering.

Stiebel Eltron Tempra 20 Trend (White) Reviews

Hot water 5 stars
We love our Stiebel Tempra 20. Have paired it with a Hague water softener and are very pleased with the result.

tankless hot water heater5 stars
I got it very fast and we replaced our old one of many years, It works great, no problems.

ETL Listed - USA & Canada!
All Stiebel Eltron Tempra and Tempra Plus tankless water heaters are ETL Listed in the USA and Canada, ensuring they conform to all applicable safety standards.
WQA Certified - USA & Canada!
All Stiebel Eltron Tankless Water Heaters are tested and certified by WQA against NSF/ANSI 372 for "lead free" compliance.
Comprehensive 7 year manufacturer's warranty against leakage / 3 year against defects in workmanship & materials. See warranty for details

Stiebel Eltron is:
Stiebel Eltron is ISO-9001 Certified