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Model#: BWHNUS3

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Brand new items;Full manufacturer warranty available
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Bosch 7736500685 30 Amp 3.4kW Under-Sink Tankless Water Heater

  • Bosch 7736500685 30 Amp 3.4kW Under-Sink Tankless Water Heater
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Designed to provide an endless supply of hot water to kitchen, bathroom, and handwashing sinks. Electric heater eliminates long waits for hot water by using a dual-chambered copper heat exchanger. The unit runs at 99% thermal efficiency, so stand-by loss is minimal. Plus, it mounts on the wall in any direction and is compact and lightweight, making it a great choice for a variety of spaces. Requires professional installation and hardwiring. With its top performance specifications and versatility, this item is a great way to get the hot water going in kitchens, offices, at warehouses, service stations, stores, and concession stands.
  • Tankless electric water heater eliminates long waits for hot water at point-of-use
  • Easy to position for installment under bathroom or kitchen sink
  • Mounts on wall in any direction and is space saving, ultra-compact, and lightweight
  • 99% efficient with minimal stand-by loss
  • Copper heat exchanger with copper-sheathed heating elements for dependable and superior quality
  • Unit requires professional installation to guarantee safety and longest life
  • Measures 12 3/4 in. W x 3 in. D x 6 1/2 in. H and weighs just 5 lbs
Compliance and Restrictions
warning: Cancer and Reproductive Harm --


Voltage: 110V - 120V



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Can you hook this up at the farthest point from a tankless house system and use as a starter for the big system.. Will this system turn off when hot water reaches it from the big system?
Jimmy S on Sep 30, 2017
BEST ANSWER: For assistance with this question, please contact Bosch directly.

Bosch Electric Water Heaters:

General Inquiries: 1-866-642-3198
Technical Support: 1-800-283-3787