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Orbek

18kW Tankless Water Heater Electric, ORBEK Instant On Demand Hot Water Heater 240V, Up to 4.17 GPM, Supply for 2-3 Fixtures Simultaneously, within 1℉ Stable Temp, ETL Certified, Indoor Installation

  • Based on 86 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 5 – Oct 6
Order within 16 hours and 22 minutes
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Style: ET-18KW (New Upgrade)


Features

  • Note: Things to know before buying, Our Orbek tankless water heater electric 18kw requires 2 x 240V/40A two-pole breakers, 2 sets of 8 AWG wires and 3/4" NPT water connections
  • Instant Hot Water Supply: Orbek electric tankless water heater 240v can provides up to 4.17 GPM of on demand endless hot water and ensure comfortable hot water for 2-3 points of use simultaneously
  • High Energy Efficiency: This on demand hot water heater electric utilizes water-electricity separation to minimize scale and corrosion. It provides endless hot water in just 3 seconds with an impressive efficiency, potentially reducing electricity costs by up to 60% compared to traditional tank-style heaters
  • Comprehensve Security Protection: The tankless hot water heater is ETL certified and packed with advanced safety features, including leakage protection, over-temperature protection, dry-heating protection and lighting resistance etc. Each product undergoes rigorous testing before leaving the factory to ensure its safety and normal operation
  • Stable Temperature Control: The built-in chip adjusts heating power 20,000 times per second, keeping water temperature stable within 1F for a comfortable shower experience
  • LED Digital Display: Our tankless electric water heater features a high-definition screen with soft lighting for easy temperature adjustments between 86F and 140F. It also displays real-time temperature changes
  • Easy Install: With a compact size of 17"H x 13.0"L x 3.9"W, our electric hot water heater saves over 50% of space compared to traditional tank water heaters, fitting easily into most corners of your home. We have also made structural improvements to the product to make installation easier
  • After-Sale Service: We provide long-term return & exchange services along with professional technical consulting support

Brand: Orbek


Product Dimensions: 3.9"W x 17"H


Special Feature: 24/7 Customer Service and Warranty, ETL Certification, Separation of Water and Electricity, ±1°F Stable Temperature Control, ‎Instant and Endless on Demand Hot Water See more


Color: White


Wattage: 18 KW


Brand: ‎Orbek


Product Dimensions: ‎3.9"W x 17"H


Special Feature: ‎24/7 Customer Service and Warranty, ETL Certification, Separation of Water and Electricity, ±1°F Stable Temperature Control, ‎Instant and Endless on Demand Hot Water


Color: ‎White


Wattage: ‎18 KW


Voltage: ‎240 Volts


Manufacturer: ‎Orbek


Item Weight: ‎18.3 pounds


Item model number: ‎ET018


Special Features: ‎24/7 Customer Service and Warranty, ETL Certification, Separation of Water and Electricity, ±1°F Stable Temperature Control, ‎Instant and Endless on Demand Hot Water


Included Components: ‎Water Heater


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: May 14, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 5 – Oct 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • This is the way to go
Style: ET-14kW
This water heater works great! It has been a godsend. It was super easy to install and takes up so much less space. Water pressure is good, I love the temperature control we can turn it to whatever we want. I was concerned but this far exceeded my expectations and at good price.
Reviewed in the United States on August 28, 2025 by v.woods
    • It’s small and doesn’t take up much room and gives me really hot water
I was easy to hook up and works great. I get super hot water.
Reviewed in the United States on August 31, 2025 by Fred gaskill
    • Plenty of hot water!!
Works great. Easy install. I have a 2 bath home and laundry room. In a 3,00 sq foot home. We have excellent hot water service that easily accommodates the 5 people in this home.
Reviewed in the United States on July 22, 2025 by Rebecca McLeod
    • May need pex and election experience
Style: ET-14kW
This will be a running review,.. install was easy if you can install electrical and pex
Reviewed in the United States on September 2, 2025 by Wayne
    • It gets the water Hot Almost Instantly It's Very easy to Use Also
Style: ET-14kW
Well Worth Every Dollar
Reviewed in the United States on September 5, 2025 by Kevin Lacara
    • Great heater
Style: ET-14kW
We purchased this heater after our old water heater finally quit. I love the fact that it was super easy to install, gives plenty of hot water for the whole house, and was a fraction of the cost of a new traditional water heater. Highly recommend!
Reviewed in the United States on May 7, 2025 by Cynthia Sims
    • 17 kw water heater
It's working as well as expected, and was easy to install.
Reviewed in the United States on August 27, 2025 by Robert Keller
    • Easy to install and it WORKS!
Let me start by saying I bought a different brand prior to this one, it was total garbage! THIS one is amazing! Straight forward wiring, water plumbing is at the bottom not the top in the event you get a leak it won’t ruin the electrical boards. Smaller, lighter, simple to operate, and man oh man, the water is HOT and plentiful! Stop looking at the other brands, buy this one! You’ll thank me later. ... show more
Reviewed in the United States on April 25, 2025 by Biker bro

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