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Stiebel Eltron Tempra 36 Tankless Water Heater Stiebel Eltron Tempra 29 Tankless Water Heater Stiebel Eltron Tempra 24 Tankless Water Heater Stiebel Eltron Tempra 20 Tankless Water Heater Stiebel Eltron Tempra 15 Tankless Water Heater Stiebel Eltron Tempra 12 Tankless Water Heater

Stiebel Eltron Tempra 24 Tankless Water Heater

Our most popular heater for whole house applications, the Stiebel Eltron Tempra 24 electric tankless water heater is a powerful 24 KW heater is an excellent choice for most whole house applications in the Northern U.S., Canada, and other regions where the incoming water temperature can drop below 45° F. The Tempra 24 is also frequently used in warmer southern climates for applications requiring higher flow rates of up to 5 gallons per minute (large Roman-style or jacuzzi tubs, simultaneous showers, etc.), as well as for commercial applications.

Like all Tempra Series tankless water heaters, the Tempra 24 features true microprocessor-controlled temperature regulation and a convenient digital temperature display and dial selector which allows you to set the desired output water temperature at any level between 86 and 125F (30 and 52C). 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 24 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!

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internal view of the Stiebel Eltron tankless water heater
See an internal view of the Stiebel Eltron tankless water heater - learn how it works and what makes it superior to the competition.
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Stiebel Eltron Tempra Series Brochure
Stiebel Eltron Tempra Series Brochure
(Adobe PDF)




Stiebel Eltron Tempra Series Electrical requirements & installation information
Electrical Requirements & Installation Information




ETL Certified

Stiebel Eltron tankless water heaters are independently tested to comply with the ANSI/UL499 safety standard



Stiebel Eltron is
ISO 9001 Certified
Quality you can count on!
Stiebel Eltron Tempra 24 electric tankless water heater
Maximum Flow Rate in Gallons Per Minute at 105°F Output temp
Incoming Water Temp: Flow Rate (GPM)
40°F 2.5 GPM
45°F 2.7 GPM
50°F 3.0 GPM
55°F 3.3 GPM
60°F 3.6 GPM
65°F 4.1 GPM
70°F 4.7 GPM
75°F 5.4 GPM
* this chart is based on 240v input. Please review the Stiebel Eltron Tempra Brochure for temp rise data at 208v input.


Sale Price: US$519.00

Shipping Options:
Ground (1-2 weeks): $19.95
Express (2-3 days): $69.95
Overnight: call 1-866-376-2690 for quote
Canadian Customers:
The Stiebel Eltron Tempra 24 is presently not available in Canada. If you would like to be notified when the unit is available in Canada (expected soon), please visit our contact page and send us an email. If you have any questions, please feel free to call us toll free at 1-866-376-2690.


Stiebel Eltron Tempra 24 Specifications

Thermostatically Controlled? Yes, digital temperature control and full power modulation based on flow rate and incoming water temperature.
KW 24 KW @ 240v / 18 KW @ 208v
Voltage: 208 - 240 volts / single phase / 50 - 60 Hz
Max. Amps: 100 AMPS @ 240v / 88 AMPS @ 208v
Breakers Required:*  2 x 60 AMP breakers (depends on local codes)
Wiring:*  Minimum 2 x #6 AWG Copper (depends on local codes)
Dimensions: 14.6 x 14.5 x 4.6" (37.0 x 36.7 x 11.6 cm)
Weight: 18 lbs (8.1 KG)
Pipe Fittings:  3/4" NPT
Energy Efficiency: 99%+
Activation Flow Rate: 0.58 GPM / 2.2 LPM
Max. Water Pressure:    150 psi
Warranty: Manufacturer's 3 Year Warranty
Safety: ETL Listed (US) - meets ANSI/UL 499 standards
Protection: microprocessor-based thermostatic temperature control (flow rate and temperature modulating) with thermal hi-limit cut-out switch monitoring each heating module

* 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 200 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.




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