$ 899 Regular price

Introducing the MODEL 3 Tankless Electric Water Heater

Powered by our patented Ohmic Array Technology, the MODEL 3 is a smart, electric tankless water heater that provides endless hot water on-demand for houses, apartments, and points-of-use. The MODEL 3 installs like any other tankless electric water heater and can be used in new construction or as a replacement to any gas or electric tank or tankless water heater. Add it to an existing hot water system as a booster or install the MODEL 3 closer to the point of use for up to 10% in water and 25-40% in energy savings each month. But what really sets the MODEL 3 apart is how it heats water.

MODEL 3

NOT ALL ELECTRIC WATER HEATERS ARE MADE THE SAME.

INTRODUCING OHMIC ARRAY TECHNOLOGY

Take a peek inside our electric tankless water heater. No metal heating elements here.

That 150-year-old technology has one fundamental flaw: the metal heating elements get very hot, and the minerals found naturally in the water stick to them. Limescale forms, energy efficiency is lost, and eventually the elements will fail. Instead, the MODEL 3 uses electronic controls to pass controlled electric currents through the water. This transfer converts electrical energy into thermal energy, creating endless hot water, on-demand, at the temperature you want. And because no scale forms, there is never a loss of energy efficiency. No metal heating elements to replace. No maintenance, period.

ohmic array technology

Take a peek inside our electric water heater, you won’t find metal heating elements here.

With our advanced all-electric technology, the MODEL 3 is able to monitor incoming data points and make adjustments 50-60x a sec. This means we maximize energy efficiency and use less electricity to heat water.

Using graphite electrodes and electronic controls, we pass controlled electric currents through the water. This transfer of electrical energy into the water increases the thermal energy, creating heat.

With no metal heating elements to scale or fail, no maintenance is ever required. That’s why we can offer the industry's only 6-year, full-unit replacement warranty.

The MODEL 3 Water Heater is the only water heater in the world that uses Ohmic Array Technology to heat water. All others use metal heating elements, which will rust, become covered with limescale, and eventually form hotspots. This 100-year-old technology causes sediment to form in the water, poor temperature control, and because the metal heating elements have to work harder to heat water over time, wastes energy.

The best electric water heater available on the market today.

We get it. Buying a new electric water heater is about as fun as getting a tooth pulled. That’s why we designed the MODEL 3 to be the best in its class. It heats water in the simplest, purest and most efficient way.

Ohmic Array Technology

The MODEL 3 is the only water heater in the world to use Ohmic Array Technology instead of metal heating elements to rust or scale.

features-energyefficient

Energy Efficient

The MODEL 3 is highly efficient as it only uses power when hot water is needed. Install it nearer to the point of use for up to 10% in water and 25-40% in energy savings.

features-zeromaintenance

Zero Maintenance

The MODEL 3 requires NO annual maintenance or NO heating elements to change out.

features-worryfree

Worry-Free

Not only will you get endless hot water, the MODEL 3 comes with an industry-leading, 6-year full unit exchange warranty.

Control and monitor your hot water usage from anywhere.

Our WiFi-enabled mobile app allows you to remotely control the temperature of the water, monitor the amount of hot water and energy used each day in your home, and even estimate how much hot water is actually costing you. Turn the water heat down when the babysitter comes for peace of mind (or to get that teenager out of that too-long shower).

MODEL 3 app

Technical Specs


Product Information

technical specs of MODEL 3

Product Information

Weight
35 lbs.
Connections
3/4” NPT male connections
Digital Controls
LED panel, Full Wi-Fi connectivity & mobile app
Standard Warranty
6-year full unit exchange; Optional 4-year extended warranty available
Download Specs & Sizing Guide

 


Operating Ranges

technical specs of MODEL 3

Operating Ranges

Voltage
208-240 V*
Frequency
50/60 Hz
Power
6.2-24 kW*
Max Inlet Temp
140° F / 60° C
Working Pressure
30-75 psi / (2.06 bar-5.17 bar) 206 kPa-517 kPa
Water Conductivity
80-2000 µS**
Current
30-100 A*
* Note
Unlike other water heaters, the MODEL 3 can be adjusted from 208-240 volts and 30 to 100 amps (6.2 to 24 kW) upon installation, depending on your hot water needs and existing wiring limitations. The higher the amperage/power setting, the more hot water the unit can provide. Please make sure to reference both the expected temperature rise table and installation manual to make sure you have enough power required for your hot water needs before ordering.
** Note
Your water MUST be between 80 and 2000 µS for the MODEL 3 to work. Your water company can come test your water, or you can purchase a water conductivity meter that can give you a reading in as little as 5 seconds. We recommend ordering one from Amazon.

Compare Top Electric Water Heaters

Whether you are replacing an old water heater, building a new home, or adding to an existing one, there are several things you should to compare before deciding on an electric water heater. Tank vs tankless water heaters, energy efficiency and reliability are just a few.

Heatworks Model 3 for compare

Heatworks Model 3 Tankless Electric Water Heater

Type

Tankless

Heating Technology

Ohmic Array Technology

Wi-Fi Enabled

Yes

Maximum Temperature Rise

41° F at 4 GPM, 82° F at 2 GPM

Energy Efficiency

.94 UEF for the life of the unit

Minimal Flow Rate Required

.4 GPM

Size

11“ x 16.5” x 10”

Standard Warranty

6-year full unit exchange — No need to call a plumber or electrician, just ship the unit back and we give you a new replacement.

Maintenance Required

No maintenance required.

Mobile App

Yes

Amperage

100 A

Continuous Hot Water

Yes

Single Shower Length

Unlimited

Uses Electricity at All Times

No, only when there is a hot water draw.

Heatworks Model 3 for compare

Stiebel Eltron 24kW Plus Electric Water Heater

Type

Tankless

Heating Technology

Metal Heating Elements

Wi-Fi Enabled

No

Maximum Temperature Rise

41° F at 4 GPM, 82° F at 2 GPM

Energy Efficiency

.94 UEF, scaling can reduce efficiency by up to 50%2

Minimal Flow Rate Required

.5 GPM

Size

16.625" x 14.5" x 4.625"

Standard Warranty

7-year limited warrany against leakage, 3-year limited warranty against defects in workmanship and materials.

Maintenance Required

Scale build-up may need to be flushed from the unit every six months to a year. Elements may need to be replaced.

Mobile App

No

Amperage

2 x 50 A

Continuous Hot Water

Yes

Single Shower Length

Unlimited

Uses Electricity at All Times

No, only when there is a hot water draw.

Tru Tankless 24kW Electric Water Heater for compare

Trutankless 24kW Electric Water Heater

Type

Tankless

Heating Technology

Metal Heating Elements

Wi-Fi Enabled

Yes

Maximum Temperature Rise

40° F at 4 GPM, 75° F at 2 GPM

Energy Efficiency

.94 UEF, scaling can reduce efficiency by up to 50%2

Minimal Flow Rate Required

.2 GPM

Size

23.74" x 17.2" x 5.5"

Standard Warranty

2-year limited warranty on labor and 5-year limited warranty on parts.

Maintenance Required

Scale build-up may need to be flushed from the unit every six months to a year. Elements may need to be replaced.

Mobile App

Yes

Amperage

100 A

Continuous Hot Water

Yes

Single Shower Length

Unlimited

Uses Electricity at All Times

No, only when there is a hot water draw.

Rheem Performance 40-Gallon Electric Water Heater for compare

Rheem Performance 40-Gallon Electric Water Heater

Type

Tank

Heating Technology

Metal Heating Elements

Wi-Fi Enabled

No

Maximum Temperature Rise

N/A

Energy Efficiency

.94 UEF, scaling can reduce efficiency by up to 50%2

Minimal Flow Rate Required

N/A

Size

20.25" x 48.5" x 20.25“

Standard Warranty

6-year limited warranty on tank and parts. 1-year in home labor warranty.

Maintenance Required

Scale build-up may need to be flushed from the unit every six months to a year. Elements may need to be replaced.

Mobile App

No

Amperage

18.75 A

Continuous Hot Water

No

Single Shower Length

53 Gallons

Uses Electricity at All Times

Yes

A.O. Smith Signature 50-Gallon Electric Water Heater for compare

A.O. Smith Signature 50-Gallon Electric Water Heater

Type

Tank

Heating Technology

Metal Heating Elements

Wi-Fi Enabled

No

Maximum Temperature Rise

N/A

Energy Efficiency

.94 UEF, scaling can reduce efficiency by up to 50%2

Minimal Flow Rate Required

N/A

Size

64" x 20“

Standard Warranty

6-year limited warranty

Maintenance Required

Scale build-up may need to be flushed from the unit every six months to a year. Elements may need to be replaced.

Mobile App

No

Amperage

30 A

Continuous Hot Water

No

Single Shower Length

45 Gallons

Uses Electricity at All Times

Yes

A.O. Smith Signature 40-Gallon Electric Water Heater for compare

A.O. Smith Signature 40-Gallon Electric Water Heater

Type

Tank

Heating Technology

Metal Heating Elements

Wi-Fi Enabled

No

Maximum Temperature Rise

N/A

Energy Efficiency

.94 UEF, scaling can reduce efficiency by up to 50%2

Minimal Flow Rate Required

N/A

Size

49.75" x 20.5“

Standard Warranty

6-year limited warranty

Maintenance Required

Scale build-up may need to be flushed from the unit every six months to a year. Elements may need to be replaced.

Mobile App

No

Amperage

30 A

Continuous Hot Water

No

Single Shower Length

37 Gallons

Uses Electricity at All Times

Yes

2A recent study found that over time, scale deposits can reduce the energy efficiency of water heating elements by up to 50%. Source: http://www.cwt-international.com/cwt/images/stories/Download/Vulcan/EN_How_Scale_Is_Killing_Heating_Efficiency.pdf

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