Stiebel Eltron Tempra 29 Plus, Whole House Electric Tankless Water Heater, 28.8/21.6kW, 240/208V
Brand: Stiebel Eltron
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What makes Tempra Plus series tankless models superior is a patented Advanced Flow Control (AFC) design. Unlike most electric tankless water heaters on the market, Tempra Plus w/ AFC keeps the hot water flowing even when the demand exceeds the unit's capacity (by slightly reducing the flow), which means no more surprise cold showers when someone opens that extra faucet or starts the washing machine. Stiebel Eltron has produced these Tempra series heaters for many years, which translates into a time-tested and reliable operation and industry leading 7/3 year warranty. Made in Germany.

  • American Hometec: AHQ-TB32 (setting 1)
  • Bosch: WH 27
  • EcoSmart: ECO 27
  • Eemax: HA027240, EX280
  • Hubbell: R027-2S
  • iHeat: AHS-27D
  • Powerstream / Powerstar: AE125
  • Rheem: RTEX-27
  • Seisco: RA-28-240, RA-28-4
  • Titan: N-270

  • Reliable and time-proven design from Germany's leading manufacturer of heaters
  • Patented AFC (Advanced Flow Control) modulating technology maintains a steady hot water temperature in variable flow conditions
  • Modulating design ensures that the least amount of energy is used at all times
  • Hot water temperature can easily be set on the front panel digital display
  • Made in Germany

Technical Specifications:
  • Voltage: 240 or 208V (hardwired)
  • Output: 28.8kW at 240V (21.6kW at 208V)
  • Amperage: 3x40A at 240V (3x35A at 208V)
  • Number & min. recommended size of curcuit breakers: 3x40A at 240V (3x35A at 208V)
  • Number of runs & min. recommended wire size: 3x8/2 AWG
  • May be wired for balanced 3-phase 208V
  • Water Connections: 3/4" NPT
  • Min. activation flow rate: 0.77 gpm
  • Nominal water volume: 0.39 gal
  • Max. temperature increase: 240V - 92F @ 1.50 GPM, 87F @ 2.25 GPM, 66F @ 3.00 GPM, 44F @ 4.50 GPM
  • Max. temperature increase: 208V - 92F @ 1.50 GPM, 66F @ 2.25 GPM, 49F @ 3.00 GPM, 33F @ 4.50 GPM
  • Max. inlet water temperature: 131F
  • Working pressure: 150 psi
  • Tested to pressure: 300 psi
  • Dimensions (Height x Width x Depth): 14-1/2" x 16-5/8" x 4-5/8"
  • Weight: 19.0 lb

7 years leakage / 3 years parts
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