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Stiebel Eltron Tempra 29 Plus Whole House Electric Tankless Water Heater - 239223

SKU 239223
Original price $799.00 - Original price $799.00
Original price
$799.00
$799.00 - $799.00
Current price $799.00
Availability:
in stock

Rise takes a thoughtful approach to assessing and choosing home improvement products and brands that prioritize homeowners' health, wealth, and the planet.

The Tempra® 29 Plus line features a unique Advanced Flow Control function, which ensures that you’ll never be surprised by a cold shower. It also features two different temperature memory presets, making it easy to adjust for personalized needs. Thanks to these and other innovations, the Tempra® Plus ensures that you’ll enjoy endless hot water along with unrivaled efficiency. (240/208V, 28.8 kW copper tankless electric w. Advanced Flow Control)

Tempra® Plus has self-modulation. Self-modulation ensures that only the least amount of energy is used at all times. The Advanced Flow Control function ensures a steady output temperature even if flow rates vary up or down, like when hot water is being used and an additional tap is opened or closed. 

Features:

  • Proven reliability from the world leader
  • Unlimited supply of hot water
  • Sleek design saves space
  • No venting required
  • Provides continuous hot water on demand
  • Saves energy-with auto-modulation
  • 7/3-year warranty
  • Tempra® Plus features exclusive Advanced Flow Control, invented by Stiebel Eltron and awarded German patent DE 3805441 C2 and other patents

Order Processing and Shipping

Rise ships manufacturer direct. We work hard so you receive your product(s) as quickly as possible. Shipping times are subject to each carrier's daily cut-off time, and dependent upon warehouse turnaround. Learn more about our order processing & shipping times here.

Carbon-neutral shipping with Shopify Planet
Carbon-neutral shipping on all orders
6,028kg
shipping emissions removed
That's like...
15,430
miles driven by an average gasoline-powered car
We fund innovations in...
Direct Air Capture
Bio Oil
Mineralization

Specifications

Tempra Model Item Number

12 Trend 239213 

12 Plus 239219

15 Trend 239214 

15 Plus 239220

20 Trend 239215 

20 Plus 239221

24 Trend3 239216 

24 Plus3 239222

29 Trend4 239217 

29 Plus4 239223

36 Trend5 239218 

36 Plus5 239225 

Phase - 50/60 HzSingle (6) 50/60 HzSingle (6) 50/60 HzSingle (6) 50/60 HzSingle (6) 50/60 HzSingle (6) 50/60 HzSingle (6) 50/60 Hz
Voltage240 V or 208 V240 V or 208 V240 V or 208 V240 V or 208 V240 V or 208 V240 V or 208 V
Wattage12 kW9 kW14.4 kW10.8 kW19.2 kW14.4 kW24 kW18 kW3 x 40 A3 x 35 A36 kW27 kW
Amperage50 A44 A2 x 30 A2 x 26 A2 x 40 A2 x 35 A2 x 50 A2 x 44 A3 x 40 A3 x 35 A3 x 50 A3 x 44 A
Number & min. recommended 
size of circuit breakers (1) (DP)
1 x 50 A2 x 30 A2 x 40 A2 x 35 A2 x 50 A3 x 40 A3 x 35 A3 x 50 A
Number of runs & min. recommended
wire size (2) (copper)
1 x 8/2 AWG2 x 10/2 AWG2 x 8/2 AWG2 x 8/2 AWG3 x 8/2 AWG3 x 8/2 AWG
Maximum Flow Rate at Ambient Water Temperature42°F1.3 GPM1.6GPM2.1 GPM2.6 GPM3.1 GPM3.9 GPM
52°F1.6 GPM1.9 GPM2.5 GPM3.1 GPM3.7 GPM4.6 GPM
62°F1.9 GPM2.4 GPM3.1 GPM3.8 GPM4.6 GPM5.7 GPM
72°F2.5 GPM3.1 GPM4 GPM5 GPM6 GPM7.5 GPM
Maximum temperature increase 
above ambient water temp
@ 1.50 GPM54 °F41 °F65 °F49 °F88 °F66 °F92 °F82 °F92 °F92 °F92 °F92 °F
@ 2.25 GPM36 °F27 °F43 °F37 °F58 °F44 °F73 °F54 °F87 °F66 °F92 °F82 °F
@ 3.00 GPM27 °F20 °F33 °F25 °F44 °F33 °F54 °F41 °F66 °F49 °F82 °F61 °F
@ 4.50 GPM----29 °F22 °F37 °F27 °F44 °F33 °F55 °F41 °F
Min. water flow to activate unit0.37 gpm (1.4 l/min) 0.50 gpm (1.9 l/min)0.50 gpm (1.9 l/min)0.50 gpm (1.9 l/min)0.77 gpm (2.9 l/min)0.77 gpm (2.9 l/min)
Weight13.5 lb (6.1 kg)16.1 lb (7.3 kg)16.1 lb (7.3 kg)16.1 lb (7.3 kg)19.0 lb (8.6 kg)19.0 lb (8.6 kg)
Nominal water volume0.13 gal (0.5 l)0.26 gal (1.0 l)0.26 gal (1.0 l)0.26 gal (1.0 l)0.39 gal (1.5 l)0.39 gal (1.5 l)
Max. inlet water temperature131 °F (55 °C)
DimensionsWidth 165 /8˝ (42.0 cm) x Height 14½˝ (36.9 cm) x Depth 45 /8˝ (11.7 cm)
Minimum pressure30 psi (2 bar)
Working pressure150 psi (10 bar)
Tested to pressure300 psi (20 bar)
Water connections¾˝ NPT

1. Overcurrent protection sized at 100% of load. Tankless water heaters are considered a non-continuous load. 

2. Copper conductors with a temperature rating of 75 °C or greater must be used. Conductors should be sized to maintain a voltage drop of less than 3% under load. 

3. Requires minimum 150 A main service. 

4. Requires 200 A main service. 

5. Requires 300 A main service. 

6. 29 Trend/Plus & 36 Trend/Plus may be wired for balanced 3-phase 208 V. 15 Trend/Plus, 20 Trend/Plus, 24 Trend/Plus may be wired for unbalanced 3-phase 208 V

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