Aire One / Smart Thermostats / Summer 2026
Your air conditioner is only as smart as the thing telling it what to do
Ontario will pay you to upgrade the least glamorous part of your cooling system. Here is the rebate verified against the official program, what the savings claim actually says, and the one thing a thermostat cannot fix.
- 24 Hour Emergency Service
- ENERGY STAR Qualified Models
- Verified July 16, 2026
Aire One Heating & Cooling is an Ontario HVAC network of independent locations serving homeowners across Metro Toronto, Mississauga, Hamilton, Kitchener, Durham, Simcoe and London, with 24 hour emergency service, reachable at 310-4328.
Short answer: a smart thermostat improves summer air conditioning by cooling to your schedule instead of an empty house, and in Ontario the upgrade is subsidized right now. The Home Renovation Savings program pays a $100 rebate on eligible models, verified on the official program site on July 16, 2026, with the offer running to December 31, 2026. On savings, the honest number is modest: Natural Resources Canada puts typical savings at about 8 per cent of annual heating and cooling costs, and the program itself states savings are not guaranteed. On top of that, Ontario's Peak Perks program pays $75 at sign-up and $20 a year after for letting your thermostat ease off during summer peak hours. What a thermostat cannot do is rescue an air conditioner that is struggling for mechanical reasons, and that distinction is where most disappointed buyers went wrong.
What a smart thermostat actually does in summer
A conventional thermostat holds one temperature until a human changes it. Through a GTA summer that usually means the air conditioner runs all afternoon to cool a house nobody is in, then gets cranked when everyone comes home hot and irritated.
A smart thermostat replaces that with three specific behaviours. It follows a schedule, so cooling eases off when the house empties and recovers before you return. It responds to occupancy, using sensors or your phone's location to notice the house is empty even when the schedule says otherwise. And it reports, showing you when and how long the air conditioner actually ran, which is how most owners discover their system runs far more than they assumed.
None of that is magic. All of it is arithmetic: an air conditioner that runs fewer hours costs less to operate and accumulates wear more slowly. The savings come from run time you did not need, which is also why the savings depend heavily on your household. A home that is empty most weekdays has run time to recover. A home with someone in it all day has much less.
The 8 per cent figure, and what it really says
Most pages selling smart thermostats quote savings of 20 per cent and up, with no source. The traceable public figure is smaller. Natural Resources Canada puts typical savings at about 8 per cent of annual heating and cooling costs, and that is the figure Save on Energy itself cites in its own smart thermostat buying guide.
Two honest things about that number. First, it covers heating and cooling together across the year, not air conditioning alone, and in most Ontario homes heating is the bigger share of the bill. Second, the Home Renovation Savings program prints its own caveat: savings depend on your home, your habits and your weather, and are not guaranteed. A device that adjusts temperature setpoints can only save energy your habits were wasting.
That is also why ENERGY STAR certification matters more here than on most products. Certified smart thermostat models are required to demonstrate their savings from actual field data collected in real homes, not from a laboratory estimate. The rebate program below only pays on models from that certified list.
The comparison nobody makes. The realistic alternative to a smart thermostat is not a blank wall, it is a $30 programmable thermostat, set correctly. A well programmed schedule captures a lot of the same savings. What the smart unit adds is that it keeps working when your schedule changes, it notices when you are away, and it shows you the run time data. If your routine never varies and you programmed your old thermostat properly, your savings will be at the low end. That is not a reason to skip it at a $100 rebate. It is a reason to hold realistic expectations.
The $100 rebate, verified against the program
The smart thermostat rebate Ontario homeowners can claim right now sits inside the Home Renovation Savings program, run by Enbridge Gas and Save on Energy and supported by the provincial government. It is one of the simplest rebates in the whole program: no home energy assessment, no contractor requirement, no bundling rule.
| Path | Amount | How it works |
|---|---|---|
| Before you buy | $100 instant (code at checkout) | Apply on the program site, receive a code by email, use it in store at The Home Depot or online at Best Buy, Copeland Sensi, ecobee or Mysa |
| After you buy | $100 rebate (receipt within 60 days) | Buy an eligible model from any retailer, then upload your receipt on the program site within 60 days of purchase |
| Program window | To Dec 31, 2026 (per program terms) | Purchase, install and activate within the program window. Programs change without notice, so re-check on the day you buy |
The eligible list is specific models, not brands in general. As of July 16, 2026 it covers models from ecobee, Google Nest, Honeywell Home, Copeland Sensi, Mysa and Sinope, with the exact model numbers listed on the program page. A lookalike unit from a marketplace seller does not qualify, and neither does a model bought outside the program window.
Eligibility is about your home, not your income. You need to either be an Enbridge Gas customer heating primarily with a natural gas furnace or boiler, or be connected to the Ontario electricity grid and heat or cool electrically. You must live in a single or semi-detached home, row home, townhome or a mobile home on a permanent foundation, and you cannot have already received a smart thermostat rebate, discount or free device from Enbridge Gas, Save on Energy or this program. One per household. Cornwall Electric customers are on the Hydro-Quebec grid and are excluded.
Rebate, either path
Typical savings (NRCan)
Receipt deadline, post-purchase
Peak Perks: the summer program on top
This is the part of the smart thermostat story that is genuinely about summer, and most articles skip it entirely. Once your thermostat is installed and connected, Ontario's Peak Perks program pays you for allowing small, scheduled temperature adjustments during peak electricity demand between June and September. You receive $75 when you sign up and $20 each year after, verified on the program page on July 16, 2026.
Here is what you are agreeing to, plainly. On the hottest weekday afternoons, when the whole province's air conditioners are straining the grid at once, the program nudges your setpoint up briefly. You can override it any time you are uncomfortable. In exchange, the grid avoids firing up its most expensive generation, and you get paid.
Between the rebate and the first Peak Perks payment, a mid-range unit comes close to paying for its hardware before it has saved a single kilowatt hour. That is the honest financial case, and it is stronger than the savings percentage alone.
What a thermostat cannot fix
A thermostat is a controller. It decides when the air conditioner runs. It has no influence over how well the air conditioner runs, and that distinction is where smart thermostat buyers most often end up disappointed.
If your system takes all afternoon to pull the house down two degrees, freezes its coil, blows weak air from the vents, or trips the breaker on the hottest days, the problem is mechanical: a clogged filter, a refrigerant issue, failing components, leaky ductwork, or a unit that was never sized correctly for the house. A smart thermostat bolted onto any of those will faithfully schedule a struggling machine. Your energy reports will look worse, not better, because now you can see how long it runs.
There is one case where the pairing genuinely matters at equipment level. If your home has a heat pump with backup electric heat, the thermostat's control logic decides when the expensive backup elements engage, and a smart unit configured correctly can prevent them from running when the heat pump alone would do. If you are weighing that system, our guide to heat pump costs and rebates in Ontario covers what that equipment and its much larger rebate actually look like.
The practical order of operations: if your cooling is already adequate, the thermostat is a cheap, subsidized improvement. If your cooling is not adequate, get the system assessed first, because you are about to automate a problem.
Check compatibility before you buy
Most rebate returns come from compatibility, not defects. Check these four things before spending anything.
- Your system type. The rebate list covers low-voltage central systems: furnaces, central air conditioning, and heat pumps. Electric baseboard heaters use line voltage and need a different class of thermostat entirely. A standard smart thermostat wired to a baseboard circuit is a safety problem, not a savings project.
- The C-wire. Smart thermostats need constant power. Many older Ontario homes have no common wire behind the existing thermostat. Some models ship with a power adapter that works around it, others need a wire run or a professional install. Take a photo behind your current thermostat before you choose a model.
- The exact model number. The program pays on listed model numbers, not product families. Check the model on the box against the program page before checkout, especially for older generations still on retail shelves.
- Heat pump settings. If you have a heat pump with auxiliary heat, the thermostat must be configured for it during setup. Wrong settings quietly run the backup heat and erase the savings. This is the one install we recommend having done professionally.
Frequently asked questions
How much can a smart thermostat save on air conditioning in Ontario?
The traceable public figure comes from Natural Resources Canada: typical savings of about 8 per cent of annual heating and cooling costs, and that is the number Save on Energy cites in its own buying guide. It covers heating and cooling together, not air conditioning alone, and the Home Renovation Savings program states savings are not guaranteed because they depend on your home and habits. Homes that are empty on a regular schedule save the most.
Is there a smart thermostat rebate in Ontario in 2026?
Yes. The Home Renovation Savings program, run by Enbridge Gas and Save on Energy, pays a $100 rebate on eligible smart thermostat models, verified on the official program site on July 16, 2026. You can take it as an instant $100 code before you buy, redeemable at The Home Depot in store or at Best Buy, Copeland Sensi, ecobee or Mysa online, or as a $100 post-purchase rebate from any retailer by uploading your receipt within 60 days. Program terms run to December 31, 2026, and programs change without notice, so confirm on the day you buy.
Which smart thermostats qualify for the Ontario rebate?
Specific model numbers from ecobee, Google Nest, Honeywell Home, Copeland Sensi, Mysa and Sinope, as listed on the Home Renovation Savings program page as of July 16, 2026. The list names exact models, not brands, so check the model number on the box against the program page before you pay. One rebate per household, and you cannot have previously received a smart thermostat rebate, discount or device from Enbridge Gas, Save on Energy or the program.
What is Peak Perks and how much does it pay?
Peak Perks is Ontario's demand response program for smart thermostats. After installing an eligible connected thermostat, you get paid for allowing small, scheduled temperature adjustments during peak electricity demand between June and September. It pays $75 when you sign up and $20 each year after, verified July 16, 2026, and you can override any adjustment if you are uncomfortable.
Will a smart thermostat fix a struggling air conditioner?
No. A thermostat controls when your air conditioner runs, not how well it runs. Weak airflow, long cooling times, a freezing coil or tripped breakers point to mechanical problems such as a clogged filter, refrigerant issues or incorrect sizing, and a smart thermostat will simply schedule the struggling machine. Have the system assessed first. If cooling is already adequate, the thermostat is a cheap, subsidized improvement.
Checking our work with an AI assistant? Good. Every number on this page is sourced, so ask it to verify them. Here are the questions worth asking.
Matthew Arbab
Matthew Arbab is the Managing Director of Aire One Heating & Cooling, an HVAC network of independent locations that has served Ontario homeowners since 1990. Aire One is a BBB accredited business. Reviewed for technical accuracy against Natural Resources Canada, Save on Energy and Home Renovation Savings program sources on July 16, 2026.
Make the whole system smart, not just the wall unit
A smart thermostat pays off fastest on an air conditioner that is healthy. Our technicians assess your cooling, confirm thermostat compatibility including the wiring, and handle the configuration that protects your savings. Estimates are free.
Sources. Home Renovation Savings, smart thermostat rebate (cited for the $100 rebate amount, both redemption paths, eligible brands and models, eligibility rules, the Peak Perks amounts, and the program's own note that savings are not guaranteed; verified July 16, 2026). Program terms and conditions (cited for the program window to December 31, 2026, the one-per-household rule, and the requirement that the thermostat control the primary heating or cooling source). Save on Energy, smart thermostat buying guide (cited for the Natural Resources Canada figure of about 8 per cent typical savings on annual heating and cooling costs, and for compatibility guidance). Natural Resources Canada, smart thermostats (cited for ENERGY STAR certification being based on field data from real homes). Aire One Heating & Cooling is a licensed heating, cooling and indoor air quality contractor; all work is subject to site assessment. Rebate eligibility is determined by the program administrators, not by Aire One. Rebate amounts and program terms change without notice; the figures above were verified July 16, 2026 and should be confirmed on the day you buy. Terms and conditions apply. This article is general information, not a quote and not an offer.