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Stiebel Eltron Tempra 20 Plus Tankless Water Heater (239221)

Special Price $699.00 Regular Price $919.00
In stock
Stiebel Eltron Tempra 20 Plus Tankless Water Heater (239221)

Stiebel Eltron Tempra 20 Plus Tankless Water Heater (239221)

While every Stiebel Eltron model delivers superior performance, the Tempra®  Plus series represents the industry’s high-point of tankless water heater innovation. Manufactured by Stiebel Eltron, a pioneer and leader in tankless water heating technology for over 90 years, the Tempra® Plus line features our 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.


  • Unit Provides 88F rise in water Temperature at 1.5GPM, 65F Rise at 2GPM, and 44F Rise at 3GPM
  • This unit is desiged to work in cold areas where smaller units will not work.
  • Water temperature can be adjusted. Unit will not produce water over 140F with built in safety guard.
  • Can produce hot water virtually endlessly, no more cold showers
  • Reduces hot water costs up to 60% over conventional electric water heaters
  • Digital Temperature Display
  • Hinged Cover for easy access
  • Installation is quick and easy, requiring no venting or pressure relief valves, the compact size allows installation almost anywhere.
  • This power control system analyses the data and manages power usage for maximum efficiency and temperature stability. At rest, the unit uses no power at all.
  • Can be used with hard, soft, city or well water.
  • Made in Germany.
  • 3 Year Warranty on parts and workmanship


  • Dimensions: 14 9/16” W x 14 1/2” H x 4 5/8” D
  • Weight: 18 Pounds
  • Materials: All Copper Internals
  • Water Connections: 3/4 NPT, with built in shut-off valve
  • Voltage: 240V / 208V
  • Wattage: 19.2kW / 14.4kW
  • Amperage: 2 x 40A / 2 x 35A
  • Breaker Requirement: 2 x 40A / 2 x 35A
  • Recommend Wire Size: 2 x 8/2 AWG
  • Energy Efficiency: Up to 99.5%
  • Maximum Gallon Per Minute Recommanded by Manufacturer: 8 GPM
More Information
MPN 239221
Weight 27.000000
Manufacturer Stiebel Eltron
UPC 040232668609
GTIN 00040232668609
Category Tankless Water Heater
Voltage 208/240V
Required Breaker: 2 x 35A / 2 x 40A
Wire Size 2 x 8/2 AWG
Energy Source Electric
Water Connection 3/4 Inch

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