The Sensi Wi-Fi Smart Thermostat only works with HVAC systems controlled by low voltage thermostats. It will not work with HVAC systems controlled by high voltage thermostats.

Examples: Furnace heating, forced air, ducted heat pumps, and boilers.

Voltage rating on the thermostat may show 12v or 24v.

You will see lots of small, thinner multi-coloured wires under the thermostat cover.

Examples: Baseboard heaters, fan-forced heaters, in-ceiling radiant heat, and electric in-floor heating. Will have a warning label or show the voltage rating 120v - 240v.

You will see a smaller number of thicker wires under the cover separated into coloured groups (e.g. black and red or black and white) or the wires are stranded.

The Sensi Wi-Fi Smart Thermostat does not work with Smart Room Sensors.

If you’re not satisfied, you can return your purchase within 30 days for an exchange or refund (conditions may apply). For more information, please refer to our return policy.

There are some situations where an electrician may be helpful, or required. 

Contact an electrician if:

If you cancel, auto-renew will be disabled immediately. You’ll still have access to your subscription until the end of your subscription period. You will not receive a refund.

You might have taken advantage of an introductory offer for energy-saving smart devices to pair with your subscription. If that applies to you and you cancel your SmartEnergy subscription within 24 months of your start date, we will charge your account for the full value of discounts previously applied on your SmartEnergy devices.

If you have a low voltage system but there is no c-wire, you may need to have a c-wire installed. Please consult a professional electrician.