Search  for anything...

Tankless Water Heater - 240V 9kW Instant Hot Water Heater, Self Modulating, LED Display, White

  • Based on 35 reviews
Condition: Used - Like New
Checking for the best price...
$73.41 Why this price?
Save $46.58 was $119.99

Buy Now, Pay Later


As low as $12.24 / 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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 Tuesday, Aug 12
Order within 12 hours and 32 minutes
Available payment plans shown during checkout

Style: 9kW


Features

  • 9KW Tankless Water Heater Electric:This water heater designed to provide you with instant hot water and convenience,adjustable temperature from 86F to 137F. With its 9KW power, This hot water heater can quickly heat up the water in just a few seconds, allowing you to enjoy hot water without any waiting time.
  • Self Modulates to Save Energy Use:This water heater electric constantly monitors the water temperature and flow rate. This electric water heater adjusts the heating power accordingly to ensure a stable and consistent water temperature, preventing sudden changes that may cause discomfort. This not only provides a comfortable bathing experience but also helps to minimize energy waste.
  • Easy Operation:Operating this instant hot water heater is a breeze. Simply turn on the switch and use the "+" and "-" buttons to set your desired temperature. The tankless hot water heater will then take care of the rest, efficiently heating the water to your preferred temperature.
  • Water Heater Electric with LED Display:The LED display screen provides real-time information on the current flow rate, power status, and overall operation of this tankless water heater. This electric tankless water heater also features error indicators, ensuring that you are always aware of the product's status and any potential issues.
  • Safety:This on demand hot water heater electric is ETL certified and built to withstand the voltage requirements of the US (240V). This water heater for shower comes with multiple safety features including overheat protection, high and low-pressure protection, and leakage protection. Please note that professional plumbers and electricians should handle the installation process, as stated in the product manual.
  • Compact Size and Easy Installation:This hot water heater electric is perfect for various small spaces such as bathrooms, under-sink areas, yachts, restaurants, hospitals, and schools. Make sure this water heater is the correct size for your hot water needs: 16.1" (H) x 9.8" (W) x 1.6" (D) ;9kW at 240V draw max 37.5amp; Required breaker 1 x Double-POLE 60AMP; Wire gauge 8AWG.
  • DO NOT NEED Pressure Relief ValveThis electric hot water heater internal heating element is made of cast aluminum, which can withstand a pressure of 55 pounds. This instant water heater can be safely used without the need for a pressure relief valve.

Brand: LALAHOO


Product Dimensions: 9.8"W x 16.1"H


Special Feature: Dry Combustion Protection, Lightweight, Overheat Protection, High Water Pressure Protection, Low Water Flow Protection See more


Color: White


Wattage: 9 KW


Brand: ‎LALAHOO


Product Dimensions: ‎9.8"W x 16.1"H


Special Feature: ‎Dry Combustion Protection, Lightweight, Overheat Protection, High Water Pressure Protection, Low Water Flow Protection


Color: ‎White


Wattage: ‎9 KW


Voltage: ‎240 Volts


Maximum Flow Rate: ‎3 Gallons Per Minute


Maximum Temperature: ‎130.98 Degrees Fahrenheit


Heat Output: ‎9 Kilowatts


Efficiency: ‎High


Maximum Operating Pressure: ‎55 Pound per Square Inch


Maximum Pressure: ‎55 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎LALAHOO


Item Depth: ‎1.6 inches


Item Weight: ‎8.37 pounds


Item model number: ‎WQ-WH-9KW


Special Features: ‎Dry Combustion Protection, Lightweight, Overheat Protection, High Water Pressure Protection, Low Water Flow Protection


Included Components: ‎9kW tankless water heater electric


Batteries Required?: ‎No


Date First Available: December 11, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 12

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.

Top Amazon Reviews


  • Good product and deal
I had no problem installing this. And it works great. The only issue I encountered was I needed to turn down the heat level. Because I had it set to high. It gave me the code to let me know that I needed to turn down the temperature. And it is working perfectly. And I have hot water even at lower flow rate. So I would recommend this. As long as you use two 8 gauge wire 40amp circuits. I installed the second circuit and changed the wire and circuit breaker from the hot water heater. Because my hot water heater had a 14gauge wire that 20amp breaker. As most homes use. So if you don’t know how to install electrical circuits. You will need an electrician. And your plumbing will need to be modified. If you are changing from a hot water heater. As I did, and most homes have if it’s time to replace. I found that the cost of a new water heater. Was twice the amount. Even with the cost of the water heater and materials. And on demand uses less energy. So I will be using less electricity. So my house will be more efficient. And my largest monthly cost is electricity. So I have saved money when I installed it. And will continue to use less electricity every month. Definitely the best option in my opinion. And I felt that this was the best product after looking into the alternatives listed. And reading reviews and other information. IE 18kw price and installation requirements. However it is not a easy DIY project. Unless you have the knowledge and tools. I would say that if you have the skills and tools. Then it will be fairly simple to install. I spent about two times as much effort changing the electrical as installing the water heater. And it took about a day to install everything. And I had to bring the new circuit breaker from outside. Because my circuit breaker box didn’t have any place for the new breaker. And the temperature is very easy to adjust. And stays hot for as long as It is used. I have been using mine for about a month without any problems. ... show more
Reviewed in the United States on April 29, 2024 by Jeffrey Downey

  • The product has a grounding issue and NO customer Support.
The product has a grounding issue and NO customer Support. I contacted amazon for help and they asked me to pay a restocking fee to get unit replaced. I paid for a Plumber and Electrician to come and check out unit before I tried to get customer support. Please beware they give you absolutely ZERO customer support and Amazon was literally no help, just wanted to return unit and pay restocking fee for a defective product! ... show more
Reviewed in the United States on December 7, 2024 by Scott

  • Very good quality
Style: 9KW
My third tankless in 30 yrs. Highly recommend! I installed it quickly and with no issues. We can run shower, kitchen sink and washer at same time and have steady hot water. Price was very good and shipped quick!
Reviewed in the United States on April 25, 2025 by deb q.

  • Replaced 50 gallon tank
I replaced a 20 year old 50 gallon electric water heater. I chose this unit 18kw due to the power requirements and output. I am in the DFW area and it is December. The cold water seems to be about 65 degrees. I set the output to 130. With that I can run a single shower at full pressure at 130. If I add a faucet it goes down to 128. With two faucets and a shower it’s at 108. I would say it should work well as this will service my spare bedrooms shower which only gets used with guests rarely and our kitchen. I would say it’s barely adequate for all of that. It takes two 40 amp breakers with 8 gauge wire. Luckily it was near the breaker box and it was easy to run the wires. I had to purchase all of the fittings that are in the picture including the two clean out valves and pressure release. The wires were very difficult to connect inside the unit and the ground wire set screw was missing. The male fittings coming out of the bottom of the unit leaked a bit at first, but I was able to tighten them. Also the valve fittings have a gasket that didn’t work well and I had to add a gasket to stop leaks. There are very basic limited instructions. 4 stars only because there is absolutely no tech support and the instructions are inadequate. If you are handy though, it seems like a great unit. I can’t attest to how well it lasts. ... show more
Reviewed in the United States on December 15, 2024 by Jennifer Bond Jennifer Bond

  • Bueno
Excelente equipo
Reviewed in the United States on May 20, 2025 by DAINLER TORRES RUEDA

  • Nice unit
Hooked it all up operates great ,instant hot water as discribed , hope it lasts …
Reviewed in the United States on October 15, 2024 by Tony

  • This product is junk lasted 6 months!!!
Style: 9KW
I have installed at least 40 instant water heaters. Water Heater is very inconsistent, hot cold at first. Now the unit doesn't work any more. I didn't know it was disposable in 6-8 months. Wasted my money and time on product. Don't buy this is junk, unless you need just for a few months.
Reviewed in the United States on January 9, 2025 by Nicholas kwasniuk

  • muy fácil de instalar y funciona perfectamente aqui en florida para 3 baños
muy fácil de instalar y funciona perfectamente aqui en florida para 3 baños
Reviewed in the United States on September 15, 2024 by javier javier

Can't find a product?

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