A quick honesty note before the list: the official program page doesn't publish pricing or independent ratings for any of these thermostats, so we're not going to invent a 1-through-7 ranking that implies we tested them. What we can do is tell you which one fits your situation, based on real, verifiable differences — heating system compatibility, voice control, and design.
ecobee Smart Thermostat
The most complete lineup on the eligible list — five models (Smart Thermostat with voice control, Premium, Enhanced, Essential, and the budget ecobee3 lite), so there's a tier for almost any budget without leaving the brand. Built-in voice control on the flagship model is a genuine differentiator versus most competitors here.
Models: Smart Thermostat (voice), Premium, Enhanced, Essential, ecobee3 lite
Google Nest
The most recognizable brand on this list, with the deepest third-party smart home integration (Google Home, most major ecosystems). Three models available under the rebate: the Learning Thermostat (3rd/4th gen), the standard Nest Thermostat, and the older Nest Thermostat E.
Models: Learning Thermostat (3rd/4th gen), Nest Thermostat, Nest Thermostat E
Honeywell Home
The broadest spread of options on the eligible list, from the T5 Gen2 (a simpler, budget-friendly unit) up to the T9 with a Smart Room Sensor for temperature-balancing across rooms — useful if one room in your home always runs hot or cold.
Models: T9 (Wi-Fi), T9 (with Smart Room Sensor), T5 Gen2, X2S, X8S (Black and White)
Copeland Sensi
Four models spanning a genuine budget-to-premium range within one brand: Sensi Lite at the entry point, up to Sensi Touch 2 at the top. Worth a look if you want the simplest possible option that still qualifies for the rebate.
Models: Sensi Touch Wi-Fi, Sensi Touch 2, Sensi, Sensi Lite
Mysa
A single model, designed primarily for homes with electric baseboard or in-floor heating rather than central forced-air furnaces — worth checking compatibility with your specific heating system before buying, since it's a narrower fit than the others on this list.
Model: Mysa Smart Thermostat
Sinopé
Three models specifically built for central systems, including "Lite" and "Pro" tiers. Like Mysa, this is a Quebec-based brand with particular strength in non-forced-air heating setups — check the model matches your system type before purchasing.
Models: Smart Thermostat Lite (Central System), Pro Lite (Central System), Pro (Central System)
The 7th "option": don't overthink it
If your heating is a standard forced-air furnace and you don't have a strong ecosystem preference, ecobee or Nest cover the widest range of use cases and have the largest installed base for troubleshooting help online. The $100 rebate is the same regardless of which eligible brand you pick, so the deciding factor should be your specific system and smart-home preferences, not the rebate amount.
How the rebate works
You can get the $100 as an instant rebate before you buy through the program portal, or as a mail-in rebate after purchasing from any retailer and submitting your receipt. Check no pricing is published on the official program page, so compare current retail prices at your preferred retailer before deciding.
See your full Toronto rebate picture
The thermostat rebate is one of nine categories — see what else you qualify for.
Estimate my rebates →Source: homerenovationsavings.ca — smart thermostat rebate page. No independent pricing or ratings data is published there; verify current pricing directly with retailers.
Full Toronto smart thermostat rebate page → · All 9 Ontario rebate categories →