Search  for anything...
Orbek

18kW Tankless Water Heater Electric, ORBEK 240 Volt On Demand Instant Hot Water Heater, with LED Digital Display, ETL Certified, Up to 4.17 GPM for 2-3 Point of Use throughout the Whole House

  • Based on 97 reviews
Condition: Used - Like New
Checking for the best price...
$274.22 Why this price?
Holiday Deal · 30% off was $389.99

Buy Now, Pay Later

As low as $45.70 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Dec 26
Order within 8 hours and 27 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: ET-18kW


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: 13"W x 17"H


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


Color: White


Wattage: 18 KW


Brand: ‎Orbek


Product Dimensions: ‎13"W x 17"H


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


Color: ‎White


Wattage: ‎18 KW


Voltage: ‎240 Volts


Maximum Temperature: ‎1.4E+2 Degrees Fahrenheit


Efficiency: ‎High Efficiency


Style: ‎ET-18kW


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎Orbek


Item Weight: ‎19.76 pounds


Item model number: ‎18kW


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


Included Components: ‎Water Heater×1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 30, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Dec 26

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.

Similar Products

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
    • Great item
Style: ET-14kW
Love it it! Works great and easy to install.
Reviewed in the United States on September 28, 2025 by Lynette Duvall
    • Good water Heather.
Style: ET-18kW
I have 3 months with it and no problems at all, I have city water with good pressure and water comes out hot, we are a family of 5 and we replaced a 40 gallon water heater with this 18kw and I had to change the electric cable for a thicker gauge number 8 and it uses two 2/8 cables.
Reviewed in the United States on September 13, 2025 by David Martinez
    • It’s small and doesn’t take up much room and gives me really hot water
Style: ET-18kW
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
    • 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
    • Easy installation
Style: ET-18KW (New Upgrade)
Works great better than the last one I bought
Reviewed in the United States on September 28, 2025 by Buster
    • 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
    • Plenty of hot water!!
Style: ET-18kW
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

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...