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Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2

4.6 out of 5 stars 474 ratings
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Tempra 24 Plus (24 kW)
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  • TEMPRA 24 PLUS – This specific model is 24kW, 240V/208V, requires a min. recommended household electric service of 150 A, and offers an output water temperature of 68˚ to 140˚F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels
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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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Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2
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Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
Customer Rating 4.6 out of 5 stars (474) 4.4 out of 5 stars (2699) 4.5 out of 5 stars (360) 4.5 out of 5 stars (3302) 4.4 out of 5 stars (1891) 4.5 out of 5 stars (352)
Price $624.00 $307.90 $399.00 $151.49 $218.96 $270.00
Sold By Amazon.com Amazon.com ALCRSOAN YaMe Office Supplies *Free Shipping Amazon.com ALCRSOAN
Item Dimensions 4.63 x 16.63 x 14.50 inches 3.63 x 14.00 x 17.00 inches 18.25 x 3.50 x 14.50 inches 13.75 x 13.50 x 13.75 inches 3.75 x 8.00 x 11.50 inches 12.63 x 8.25 x 3.63 inches

Product description

Style:Tempra 24 Plus (24 kW)

The Stiebel Eltron Tempra 24 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 24 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: 24 KW/18 KW; Min. recommended household electric service 150 A; Amperage draw: 2 x 50 A 2 x 44 A; Number and min. recommended size of circuit breakers: 2 x 50 A (DP); Number of runs and min. recommended wire size (copper): 2 x 6/2 AWG; Max. temperature rises: 92 F/82 F at 1.50 GPM, 73 F/54 F at 2.25 GPM, 54 F/41 F at 3.00 GPM, 37 F/27 F at 4.50 GPM; Min. water flow to activate unit: 0.50 GPM/1.9l/min; Weight: 16.1 lb/7.3 kg; Nominal water volume: 0.26 gal/1l; 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.


Product information

Style:Tempra 24 Plus (24 kW)

Technical Details

Technical Specification

User Manual [PDF ]

Additional Information

Warranty & Support

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Important information

Wattage

18000 watts

Bulb Voltage

240 volts


Customer Questions & Answers

Customer reviews

4.6 out of 5 stars
4.6 out of 5
474 global ratings
How are ratings calculated?

Top reviews from the United States

Reviewed in the United States on May 14, 2019
Style: Tempra 29 Plus (29 kW)Verified Purchase
183 people found this helpful
Comment Report abuse
Reviewed in the United States on April 2, 2019
Style: Tempra 24 Plus (24 kW)Verified Purchase
90 people found this helpful
Comment Report abuse
Reviewed in the United States on September 14, 2019
Style: Tempra 24 Plus (24 kW)Verified Purchase
77 people found this helpful
Comment Report abuse
Reviewed in the United States on August 27, 2019
Style: Tempra 20 Trend (20 kW)Verified Purchase
80 people found this helpful
Comment Report abuse
Reviewed in the United States on October 5, 2019
Style: Tempra 29 Plus (29 kW)Verified Purchase
50 people found this helpful
Comment Report abuse
Reviewed in the United States on March 22, 2019
Style: Tempra 24 Trend (24 kW)Verified Purchase
55 people found this helpful
Comment Report abuse

Top reviews from other countries

Jorge Ortiz
4.0 out of 5 stars Una maravilla hasta ahora
Reviewed in Mexico on June 11, 2019
Style: Tempra 36 Trend (36 kW)Verified Purchase
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