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Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23

4.6 out of 5 stars 1,558 ratings

$799.00
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Tempra 29 Plus (29 kW)
Water Heater

Enhance your purchase

Brand Stiebel Eltron
Capacity 0.39 Gallons
Power Source Hard Wiring Required
Item Dimensions LxWxH 4.63 x 16.63 x 14.5 inches
Color White

About this item

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  • On demand a continuous and unlimited supply of hot water
  • Sleek design saves space and no venting required
  • Requires hard-wired 240 or 208-volt electric service, with a maximum draw of 28,800 watts at 240 volts or 21,600 watts at 208 volts
  • Requires 3 separate dedicated 40 amp breakers with 8 gauge copper wiring, and a minimum of 200 amp total service to the residence
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Customer ratings by feature

Easy to install
4.5 4.5
Energy efficiency
4.4 4.4
Temperature Control
4.4 4.4
Tech Support
4.2 4.2

Consider this Amazon's Choice product that delivers quickly

Amazon's Choice

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  • Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23
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From the manufacturer

Tempra 12 | Tempra 12 Plus Tempra 15 | Tempra 15 Plus Tempra 20 | Tempra 20 Plus Tempra 24 | Tempra 24 Plus Tempra 29 | Tempra 29 Plus Tempra 36 | Tempra 36 Plus
Tempra 12 Trend | Tempra 12 Plus Tempra 15 Trend | Tempra 15 Plus Tempra 20 Trend | Tempra 20 Plus Tempra 24 Trend | Tempra 24 Plus Tempra 29 Trend | Tempra 29 Plus Tempra 36 Trend | Tempra 36 Plus
kW 12 kW 14.4 kW 19.2 kW 24 kW 28.8 kW 36 kW
Voltage 208 V 208 V 208 V 208 V 208 V 240 A
Max. amperage draw 50 A 60 A 80 A 100 A 120 A 150 A
Min. required breaker(s) 1 x 50 A DP 2 x 30 A DP 2 x 40 A DP 2 x 50 A DP 3 x 40 A DP 3 x 50 A DP
Min. required wire size and number of runs 1 x 6/2 AWG 2 x 10/2 AWG 2 x 8/2 AWG 2 x 6/2 AWG 3 x 8/2 AWG 3 x 6/2 AWG
Min. recommended household electric service 100 A 100 A 125 A 150 A 200 A 300 A
Min. flow to activate unit 0.37 GPM 0.50 GPM 0.50 GPM 0.50 GPM 0.77 GPM 0.77 GPM
Water connections 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT
Output water temp. range 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F

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Customer Rating 4.6 out of 5 stars (1558) 3.9 out of 5 stars (18) 4.0 out of 5 stars (47) 4.6 out of 5 stars (262) 4.5 out of 5 stars (2077)
Price $799.00 $359.00 $649.00 $501.10 $425.00
Sold By Amazon.com Amazon.com GP Conservation Amazon.com Sirr0und
Item Dimensions 4.63 x 16.63 x 14.5 inches 4.31 x 8 x 14.13 inches 4 x 18 x 19 inches 3.75 x 17 x 17 inches 3.63 x 14 x 17 inches
Number of Items 1 1 1 1 1

Product Description

"The Stiebel Eltron Tempra 29 Plus Tankless Water Heater features exclusive Advanced Flow Control German patented technology invented by Stiebel Eltron to automatically maintain water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity to ensure that hot showers will never be interrupted. Tempra 29 Plus will typically use 15-20% less energy compared to conventional electric tank water heaters. Although, it’s possible to save significantly more energy depending on personal home usage habits. The difference is that conventional tank water heaters continually store hot water, and as a result, lose 15%-20% of the total energy consumed to the environment around them. This is called standby heat loss. Tank water heaters that use gas or oil are even less efficient, because they also lose heat through their vents to the outdoors. Our tankless water heaters do not need venting, and will not store hot water, waiting for you to use it. They operate on-demand to provide continuous and endless hot water when you need it, and not waste energy when you don’t. CERTIFICATIONS INCLUDE - ANSI/UL Std. 499, CSA Std. C22.2 No. 88, ISO 9001, WQA tested & certified against NSF/ANSI 372 for lead free compliance. TECHNICAL SPECIFICATIONS – Single Phase 50/60 Hz; Voltage: 240 V/208 V; Wattage: 28.8 KW/21.6 KW; Min. recommended household electric service 200 A; Amperage draw: 3 x 40 A 3 x 35 A; Number and min. recommended size of circuit breakers: 3 x 35 A (DP); Number of runs and min. recommended wire size (copper): 3 x 8/2 AWG; Max. temperature rises: 92 F/92 F at 1.50 GPM, 87 F/66 F at 2.25 GPM, 66 F/49 F at 3.00 GPM, 44 F/ 33 F at 4.50 GPM, Min. water flow to activate unit: 0.77 GPM/2.9l/min; Weight: 19.0 lb/8.6 kg; Nominal water volume: 0.39 gal/1.5 l; Max. inlet water temperature: 131 F/55 C; Working pressure: 150 PSI/10 BAR; Tested to pressure: 300 PSI / 20 BAR; Water connections: 3/4"" NPT."

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