Stiebel Eltron Tempra 36 PLUS Tankless Water Heater
(Free Shipping - Continental US )

Item #: TEMPRA36PLUS

One of the most powerful electric tankless water heaters available today, the 36 KW Stiebel Eltron Tempra 36 tankless water heater was designed primarily for high flow rate applications in cold climates where the incoming water temperature can drop below 40° F. It is also a popular choice for homes and commercial applications in warmer climates where very high flow demands (up to 8 gallons per minute depending on the incoming water temperature) are necessary due to multiple large simultaneous hot water demands. Like all Tempra Series tankless water heaters, the Tempra 36 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 36 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!

* 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: the electrical requirements of this unit prohibit its installation in many homes. A minimum 300 AMP household electrical service is highly recommended. Only a small percentage of homes are equipped with a 300 AMP service. Please consult your electrician before ordering if you are unsure of your electrical capacity in your home, or consider another model selection.

Stiebel Eltron Tempra 36 Specifications
Thermostatically Controlled?	Yes, digital temperature control and full power modulation based on flow rate and incoming water temperature.
KW	36 KW @ 240v / 27 KW @ 208v
Voltage:	208 - 240 volts / single phase / 50 - 60 Hz
Max. Amps:	150 AMPS @ 240v / 132 AMPS @ 208v
Breakers Required:*	3 x 60 AMP breakers (depends on local codes)
Wiring:*	Minimum 3 x #6 AWG Copper (depends on local codes)
Dimensions:	21.7 x 14.5 x 4.6" (55.2 x 36.7 x 11.6 cm)
Weight:	24 lbs (11 KG)
Pipe Fittings:	3/4" NPT
Energy Efficiency:	99%+
Activation Flow Rate:	0.87 GPM / 3.3 LPM
Max. Water Pressure:	150 psi (tested to 300 psi)
Warranty:	Manufacturer's 3 Year Warranty
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

Additional Information:
- Sizing Guide
- Tempra Residential Brochure (PDF)
- Tempra Commercial Brochure (PDF)
- Tempra Installation Manual (PDF)
- Tempra parts diagram (PDF)
- Internal View


Internal View of the Stiebel Eltron tankless water heater

*Note: The Tempra 36 and Tempra 29 Plus have 3 heating modules (not pictured).

Electronic Control Module Sophisticated microprocessor-controlled electronics adjust the power output of the heating modules based on flow rate and incoming water temperature to precisely regulate the output water temp. Heating Module The muscle of the system! A series of very high output heating modules (up to 3, depending on model) are used to heat the water as it passes through the heating chambers of the water heater. Each heating module features multiple heating elements. The heating chambers are manufactured with copper - no cheap plastics here! Flow Sensor A sophisticated flow rate sensor delivers important data to the microprocessor on a continuous basis - this data is used by the microprocessor to calculate the power level of the heating modules that is necessary to heat the water to the set temperature. Safety Thermal cut-off Safety first! Each heating chamber is protected by thermal limit switch, a back-up safety feature that will automatically turn off the heating module if a potentially unsafe output water temperature is reached. This reduces the risk of scalding injuries for children and the elderly, and protects the unit from damage if the microprocessor-based thermostatic control fails. Temperture Selector Set it and forget it - use the simple dial control to raise or lower the temperature setting. Tempra Plus as well as Tempra 36, 20, 15, and 12 models are equipped with a digital temperature setting display. The temperature can be set at any level from 86F (30C) & 125F (52C) [up to 140F or 60C on Plus Models and Tempra 24]. Temperature Sensors Working in conjunction with the flow sensor, a series of temperature sensors deliver important data to the microprocessor on a continuous basis so that the unit can acurately maintain the set output water temperature. Wiring Block Convenient terminal blocks are provided to ensure a quick, simple, and safe installation. Installation by a licensed electrician highly recommended. Flow Control Exclusive to Tempra Plus models, the dynamic Advanced Flow Control system will adjust the flow rate of the water if the microprocessor detects that the flow rate exceeds the capacity of the system. The result is the most precise temperature control of any tankless water heater on the market today! Ideal for applications where simultaneous hot water applications occassionally exceed normal model flow rate capacities. Sturdy Hinged Steel Case All Stiebel Eltron Tempra and Tempra Plus Series water heaters are housed in a sturdy steel case with built-in wall mounting brackets. Many competitors use flimsy light-gauge aluminum cases or even plastics. Tempra Plus and Tempra 24 models feature a convenient hinged case for easy access. Inlet Water Filter The inlet water pipe includes a small screen filter that ensures that no debris is able to enter the system. This filter can be periodically cleaned for optimal flow performance.