MODEL 3 Water Heater

Your next whole home, tankless electric water heater. Connected to the Internet of Things.

MODEL 3 Water Heater

Regular price $ 699.00 Sale

This item is currently in production. The tentative ship date is February 2018.

With twice the power and twice the hot water of our previous water heaters, the MODEL 3 is the world's best whole home, tankless electric water heating solution. The MODEL 3 heats water using graphite electrodes, which are used in place of traditional metal heating elements. Through electronic controls, the naturally occurring minerals in your water are excited, producing heat as a byproduct of this process. The only thing that gets hot is the water, which means no scaling or corrosion over time. You'll get purer, endless hot water. And the MODEL 3 will never require any maintenance and has a significantly longer lifespan.

A unique feature of the MODEL 3 is the ability to adjust the current from 30-100 A, depending on your hot water needs. This means, though the unit can be set to draw up to 100 A, it does not have to be set that high. The higher the power setting, the greater the amount of hot water. It can be installed where your existing water heater is or, to get hot water closer to where you want it, it can be installed anywhere there are cold and hot water lines.

The Wi-Fi enabled app will also offer insights to your water and energy usage, and will also accurately allow you to maintain temperature preferences.

installation is easy

Control right from your phone.

Use our groundbreaking app to monitor things like the amount of water you use each day, your favorite temperature for a shower or if you need to limit showers to certain times in your home.

installation is easy

Your water heater has a dirty little secret.

All water heaters come standard with a fundamental flaw: the metal heating element will rust, scale and eventually fail. But not before it creates sediment inside the same tank that stores your family's hot water.

Heatworks water heaters are different. We use water as the heating element, so the hot water you get is purer. And requires no maintenance.

Product Features


Water Purity

No heating elements ensures no mineral or sediment build up.


Energy Efficient

Save money on your monthly utilities. Our water heater is 99% energy efficient.


Compact Size

Fits anywhere in your home for added convenience and comfort.



6-year full unit exchange guarantee.


Zero Maintenance

Powered by Ohmic Array Technology with no internal parts to fail.

Heatworks app integrates the internet of things (IoT) and home water heating to provide the best possible user experience and the highest level of control

Water Heater Analytics

For the first time, the internet of things (IoT) and home water heating will be combined to provide the best possible user experience and the highest level of control. Cloud analytics offer insights into water and energy usage, and provide tips to achieve your usage goals and budget constraints.

Technical Specs

Product Information

11” x 13.2” x 10"
35 lbs.
18” flexible water heater connection hoses; 3/4” NPT male connectors
Digital Controls:
Yes, full WiFi connectivity & mobile app
Max Temp Rise:
41° F rise at 4 GPM / 82° F rise at 2 GPM
Standard Warranty:
6-year full unit exchange

Operating Ranges

240 V
50/60 Hz
7.2-24 kW
30-100 psi / 2.06-6.89 bar / 206-689 kPa
80-2000 µS
30-100 A