Whole House Electric Tankless Water Heaters
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 | ||||||||||
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| 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 |
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| 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 |  |
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| 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 | |
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| 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 | 0.77 GPM / 2.9 LPM | 0.50 GPM / 1.9 LPM | 0.37 GPM / 1.4 LPM |
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| 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 | 150 Amps | 125 Amps | 100 Amps | |||||
| Recommended Wiring* (AWG Copper) |
3 x #8 | 3 x #8 | 2 x #8 | 2 x #8 | 2 x #10 | 1 x #8 | ||||
| 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) |
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| Stiebel Eltron Tempra 36 Plus Tankless Water Heater | Stiebel Eltron Tempra 36 Tankless Water Heater | Stiebel Eltron Tempra 29 Plus Tankless Water Heater | Stiebel Eltron Tempra 29 Tankless Water Heater | Stiebel Eltron Tempra 24 Plus Tankless Water Heater | Stiebel Eltron Tempra 24 Tankless Water Heater | Stiebel Eltron Tempra 20 Plus Tankless Water Heater | Stiebel Eltron Tempra 20 Tankless Water Heater | Stiebel Eltron Tempra 15 Plus Tankless Water Heater | Stiebel Eltron Tempra 12 Plus Tankless Water Heater | |
