Stiebel Eltron 24 Plus Tempra, Tankless Water Heater, White



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  • Stiebel Eltron Tempra 24 Plus Water Heater is compared to a conventional electric tank water heater, a water heater will typically use 15-20% less energy, although savings can be substantially higher depending on usage habits.
  • Conventional electric tank water heaters continually store hot water and as a result lose 15-20% of the total energy they consume to the environment around them. This is called standby heat loss.
  • Gas or oil tank water heaters are even less efficient due to the fact that they also must be vented to the outdoors.
  • A water heater does not need to be vented, and does not store full temperature hot water waiting for you to use it.
  • Certified to ANSI/UL Std. 499, Conforms to CAN/CSA E335-1 & E335-2-35.
  • Tested and certified by WQA against NSF/ANSI 372 for lead free compliance.
  • An ISO 9001 Certified. Tempra Plus has Advanced Flow Control and its works by slightly reducing the flow of water.
Technical Specifications:
  • Phase: single 50/60 Hz;
  • Voltage: 240 V or 208 V;
  • Wattage: 24 KW/18 KW;
  • Amperage draw: 2 x 50 A 2 x 44 A;
  • Number and min. recommended size of circuit breakers1 (DP): 2 x 50 A;
  • Number of runs and min. recommended wire size2 (copper): 2 x 6/2 AWG;
  • Maximum temperature at 1.50 GPM: 92 degree F/82 degree F;
  • Maximum temperature at 2.25 GPM: 73 degree F/54 degree F;
  • Maximum temperature at 3.00 GPM: 54 degree F/41 degree F