Smart water heater controllers
Reduce your electricity use during peak demand events with a smart controller from Hilo or one of our partner brands and maximize your savings!
Hilo and Hilo-compatible smart water heater controllers
Add a smart controller for your electric water heater to the Hilo app, and you can use hot water in moderation during peak demand events — without compromising your savings. Want a shower? Go ahead, take one whenever you like!
How does it work?
Already with Hilo?
Add a water heater controller to your app! You can choose Hilo’s solution or a compatible model.
See how to connect devices Start my order
New to Hilo?
Get Hilo’s water heater controller, or if you choose Sinopé’s Calypso model, order the Hilo hub. After installing the hub, download the Hilo app and add your smart devices so Hilo can automate them during peak demand events.
Why get a smart water heater controller?
Increase comfort during peak demand events
Save more
Control your water heater remotely
Better energy management
Why choose Hilo’s water heater controller?
Take advantage of a great offer
Our water heater controller is completely free — and if it’s your first order with Hilo, professional installation is included at no extra cost!
Enjoy exclusive power outage recovery
Hilo’s exclusive recovery feature gradually restarts your water heater after a power outage, helping prevent sudden demand spikes and electrical overloads.
You must accept the Participant Agreement and commit to 12 months of automation during peak demand events.
The average potential savings amount is based on the actual consumption of Hilo customers who used a smart water heater solution during tests carried out in the 2024–2025 winter season and is calculated on the basis of 100 hours of participation or 25 peak demand events. Potential savings represent the difference between Rate Flex D and the base rate (Rate D), including applicable taxes. Savings with the smart water heater solution may vary depending on the water heater model and household hot water use during peak demand events.
**This feature may not be available, depending on the meter type. Learn more.
Hilo is more than just a water heater controller!
Maximize your savings by pairing your controller with connected thermostats! Make sure to add your Hilo-compatible devices to the app, or pick up some Hilo-brand smart thermostats when ordering your water heater controller. Your wallet will thank you!
Frequently asked questions
Hilo’s smart water heater solution can be installed on any electric water heater that meets the following criteria:
- Accessible (please make sure the area around the water heater is cleared before installation)
- Installed according to electrical standards
- Ideally, located on the same floor or within one floor of the Hilo hub, so that commands can be sent to the load controller
Please note that a water heater located in a crawl space with a ceiling height lower than six feet, or one that is not accessible at a standing height, may not be eligible. In such cases, the Hilo smart water heater solution will not be installed during the electrician’s visit.
Hilo’s smart water heater solution is provided at no cost, with free first-time installation by a licensed electrician appointed by Hilo. It includes a load controller equipped with a temperature sensor.
This solution automates the management of your water heater during peak demand events. During these events, the power supply is automatically cut off, though you can still use hot water in moderation. If your hot water consumption is too high, the power will be restored.
The Hilo solution includes a three-year warranty and is designed and manufactured in Québec.
No, Hilo does not install the Sinopé Calypso solution.
If you want Hilo to install your electric water heater solution, you can get the Hilo water heater controller.
The load controller acts like a switch, turning the water heater on and off.
During peak demand events, the water heater is automatically switched off. The large volume of water in the tank will stay hot for several hours, allowing you to use a reasonable amount of hot water during the event. Your comfort will be maintained. Once the peak demand event ends, the water heater will turn back on and resume normal operation.
During a peak event, the temperature sensor, placed at the top of the tank and connected to the controller, ensures the water heater turns back on if the minimum temperature threshold (49°C) is reached.
No.
However, to optimize your experience and savings, we strongly recommend getting Hilo smart thermostats or devices that are compatible with the Hilo service.