Thermoflow Elex 18 Electric Tankless Water Heater,18kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology

No reviews yet Write a Review
$349.99 $279.99
(You save $70.00)
Elex 18
Guaranteed to ship within 1 to 3 business days if product is available
18kw electric tankless water heater


thermoflow logo
Live Smart, Life Better!

'thermoflow' is mainly concentrate on comfortable tankless and minitank electric water heaters, giving people a comfort and healthy life start from the heat. Since the core conception, we have utilized the latest German technology to engineer the products with maximum energy saving operation. Our mission is to improve the people’s life and to spread awareness of benefits from 'thermoflow'products.

An Ideal Solution For:

  • Bathroom Sinks
  • Kitchenettes
  • Patio Sinks
  • Small Apartments
  • Doctor's Office
  • Pool Houses

Thermoflow Elex 18 Electric Tankless Water Heater


Saving Energy - Adopts to advanced self modulating temperature technology of Germany.No standby losses. No need to preheat before using,no any waste for water or electricity,saving you up to 50% in water heating costs.

Instantly Endless Hot Water - For as long as it is needed, there is an endless supply of hot water. Nobody runs out of hot water in the shower.

Space Saving - Very compact wall-mounted design frees up floor space for more storage and providing endless hot water on demand.

  • Dimensions:18.6" x 10" x 4.5"
  • Weight: 8.4 lbs
  • Water Connections :1/2” NPT
  • Nominal Pressure: 115PSI
  • Nominal Current: 2 x 38A
  • Required Breakers: 2 x 2-POLE 50AMP
  • Required Wire: 2 x 10AWG
  • Note: Breakers and wire are not included
18kw electric tankless water heater for shower

Elex 18 On Demand Electric Tankless Water Heater

The Elex 18 is a mid range electric tankless water heater with Germany self modulating technology. The Elex 18 is capable of heating two sinks and two showers simultaneously in warm climates, and a shower and sink simultaneously in colder climates. Our exclusive Electric Temperature Control (ETC) ensures a steady output temperature even if flow rates vary up or down. A thermoflow always does.And Thermoflow tankless water heaters come with the convenience of a digital backlit LCD display and touch screen, making it easy to get hot water at the desired temperature from hand washing temps of 32℉ (0℃) to shower temps of 107℉(42℃), up to 167℉ (75℃) for commercial applications.


Multiple Applications for Thermoflow Electric Tankles Water Heaters

hot water washing

Brushing teeth


Washing clothes

Instantly Endless Hot Water

As soon as you open the tap, the water flows with your desired temperature. Thermoflow Elex 18 gives constant energy savings because it is only on when you need hot water & it has bo standby losses. The Thermoflow Elex 18 is only heated in the amount and for the time you actually need it. Unlike a tank water heater, you can never run out of hot water .

More Hygiene

Electric instant water heaters heat up the cold water to the perfect temperature within seconds, directly at the tap, as it flows through the unit. The heated water is used immediately and unused water is avoided in the water line systems. That’s why testing for Legionella bacteria becomes unnecessary. This is what makes decentralized water heating more hygienic.

Saving Energy

Energy efficiency plus intelligent self-modulating technology of Germany continually ensures the least amount of energy is used. Saves up to 50% in water heating costs with the Thermoflow electric tankless water heater and use up to 85% less. Thermoflow Elex 18 electric tankless water heaters perform to the higher standards for comfort and reliability .

Stylish Compact Design

A thermoflow Elex 18 tankless water heater, features a sleek and attractive design to blend seamlessly with decor, can be installed anywhere close to the hot water taps,yet takes up considerably less space,saving valuable living space and providing endless hot water on demand.Totally silent operation and no venting is required.


3 Smart Steps for Choosing Tankless Water Heaters

find your location

choose the one you need

check specifications of thermoflow Elex 18

Determining your average inlet water temperature is important, this allows you to determine how well your unit will perform in your desired location. PS: Actual inlet temperature may be affected by local variations and seasonal changes.

Next you will determine how many applications your unit can run simultaneously at your chosen location inlet water temperature.

Determining specs and electrical infrastructure is important because without the correct infrastructure your unit may not fit onto your breaker panel.         

This product hasn't received any reviews yet. Be the first to review this product!
【1 YEAR WARRANTY 】We offer you 1 year warranty and please contact customer service team for replacement or after-sales service during the warranty period via hotline or email.
Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Related Products

Customers Also Viewed