Control and Monitor your Optimal Opti Tankless Water Heater with the Optimal+ connected app.

Optimal+ app allows you to control temperature, monitor performance and unit diagnostics, giving you full control of our hot water services. Optimal's patent pending ultrasonic flow sensors allow you to add your water heater to your smart home intelligence.

Optimal+ allows you to precisely customize how hot water is delivered to your faucets. Save money, be efficient and that's Optimal.


Current App Version functionality.
- Set water heater output temperature
- Unit activity state (heating / not heating)
- Gallons / min flow rate
- Kilowatts per hour rate
- Inlet Water Temperature
- Outlet Water Temperature
- Input Voltage
- Available Flow Rate
- Heater Capacity
- Vacation Mode
- Diagnostics / Error Code Reporting