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Whole House Electric Tankless Water Heaters

Stiebel Eltron Tempra & Tempra Plus

The Stiebel Eltron Tempra and Tempra Plus Series electric tankless water heaters are the most sophisticated electric tankless water heaters available on the market today.

Ranging in power from 12 to 36 KW, Stiebel Eltron offers a model for a wide range of point-of-use, whole house, and commercial hot water applications. All Stiebel Eltron Tempra & Tempra Plus Series tankless water heaters feature their advanced microprocessor technology which constantly monitors the water flow rate and incoming water temperature and adjusts the power level to maintain a precise output temperature as selected by the user.

The Tempra Plus series tankless water heaters take temperature control to whole other level, with the industry's only Advanced Flow Control technology. Stiebel Etron's Advanced Flow Control technology will automatically adjust the flow of water if the unit's sensor's detect that the flow demand is exceeding the heater's capacity. This feature is very desirable in cold climates and recommended for temperature-critical applications (commercial dishwashers, etc.) where flow rates are not always predictable.

A dial on the front of the tankless water heater allows you to set your desired output water temperature between 86 and 140F (30 to 60C)[Note, maximum temperature setting on some models is 125F (52C)].

Stiebel Eltron Tempra & Tempra Plus Whole House Electric Tankless Water Heaters
Tempra 36
Plus
Tempra 36 Tempra 29
Plus
Tempra 29 Tempra 24
Plus
Tempra 24 Tempra 20
Plus
Tempra 20 Tempra 15
Plus
Tempra 12
Plus
Application Extreme North and/or Very High Flow Rates Northern Regions or High Flow Rates Northern or Higher Flow Rates Southern / Moderate Flow Rates Tropical / Point of Use
Advanced Flow Control Technology Checked   Checked   Checked   Checked   Checked  
Temp Control Full micro-processor-based thermostatic temperature control featuring temperature selector / display and full power modulation based on flow rate and incoming water temperature.
Digital Temp. Setting Display Checked   Checked   Checked   Checked   Checked  
Hinged Case Yes
Power (KW's @ 240v) 36 KW 28.8 KW 24 KW 19.2 KW 14.4 KW 12 KW
Power (KW's @ 208v) 27 KW 21.6 KW 18 KW 14.4 KW 10.8 KW 9 KW
Max Temp Rise @ 1.5 GPM
240v (208v)
92F (92F) 92F (92F) 92F (82F) 88F (66F) 65F (49F) 54F (41F)
Max Temp Rise @ 2.25 GPM
240v (208v)
92F (82F) 87F (66F) 73F (54F) 58F (44F) 43F (37F) 36F (27F)
Max Temp Rise @ 3 GPM
240v (208v)
82F (61F) 66F (49F) 54F (41F) 44F (33F) 33F (25F) 27F (20F)
Max Temp Rise @ 4 GPM
240v (208v)
55F (41F) 44F (33F) 37F (27F) 29F (22F) Not Recommended
Max Output Temperature** 140F (60C) 125F (52C) 140F (60C) 125F (52C) 140F (60C) 140F (60C)
Heating Modules 3 heating modules 2 heating modules 1 heating module
Dimensions 16.6" x 14.5" x 4.6" (55.2 x 36.7 x 11.6cm)
Weight 17.6 lbs (8.6kg) 15.4 lbs (7.3kg) 13.2 lbs (6.1kg)
Energy Efficiency 99%+ energy efficient
Activation Flow Rate 0.87 GPM / 3.3 LPM 0.58 GPM / 2.2 LPM 0.37 GPM /
1.4 LPM
Pipe Fittings 3/4" NPT
Working Pressure Max. Recommended Pressure = 150 psi (10 bar) - tested to 300 psi (20 bar).
Voltage Requirements 208 - 240 volts / single phase / 50 - 60 Hz
Max. Amps
(@ 240 volts)
150 Amps 120 Amps 100 Amps 80 Amps 60 Amps 50 Amps
Max. Amps
(@ 208 volts)
132 Amps 105 Amps 88 Amps 70 Amps 52 Amps 44 Amps
Breakers Recommended* 3 x 50 Amp 3 x 40 Amp 2 x 50 Amp 2 x 40 Amp 2 x 30 Amp 1 x 50 Amp
Minimum amps to home 300 Amps 200 Amps 125 Amps 100 Amps
Recommended Wiring*
(AWG Copper)
3 x #6 3 x #8 2 x #6 2 x #8 2 x #10 1 x #6
Maximum recommended
input temperature:
131F (55C)
Safety ETL Listed (US & Canada)
Independently tested to conform all applicable safety standards including
ANSI/UL 499 (USA) and CSA-E335-1/3E-94 (Canada)


Price:

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