The MODEL 3 Water Heater by Heatworks will operate without downloading the Heatworks mobile app or paying an additional fee or subscription.
However, downloading our mobile app and connecting your unit to your home or business Wi-Fi network will turn-on some valuable features. Through over-the-air updates, rest assured that your MODEL 3 is always operating with the most recent version of software. In addition, you’ll be able to control the temperature of your water remotely.
Users who want more insight about their hot water can subscribe to our Eco-wise version for only $9.99 per year. Features include:

- Visualize water usage for the last 5 minutes, 24 hours, or 7 days
- Visualize energy usage for the last 5 minutes, 24 hours, or 7 days
- See total dissolved solids in the water
- Know how much your hot water actually cost for the last 5 minutes, 24 hours, or 7 days by entering local kWh and gallons rates
- Receive a monthly diagnostic report highlighting the health of 5 key systems within your MODEL 3 Water Heater, as well as the total energy and water consumption and approximate costs used to create hot water for the previous month.
- Considering that water heating is the second largest expense in homes (accounting for 14-18% of your utility bills)*, these insights should allow Eco-wise app users the ability to better understand their hot water usage so they can save money and our Earth’s valuable resources.

Need help? Visit for answers to common questions or to contact our Customer Support team.

Terms of Service:

What’s New

Version 1.13.0

- Users can now select between °C and °F on the display
- Temperature setpoint dial has limited the range to 68°F and 130°F
- Temperature up/down arrows has limited the range to 68°F and 130°F
- Temperatures are now whole numbers for °F and half numbers for °C.

Ratings and Reviews

4.3 out of 5
4 Ratings

4 Ratings

SC2655 ,

Very useful

You can see how much hot water you have used and how much is cost.

mrtonothorns ,

This app is glitchy.

I cannot register my heaters, I have to constantly restore my purchases to see my activity. I love the heaters but this app leaves a lot to be desired. I would like it to incorporate into the Apple Home ecosystem, but it doesn’t.

App Privacy

The developer, Heatworks Technologies, Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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