Is an Efficient Air Conditioner Worth It in Canada? (2026)
With electricity at 14.0¢ per kWh in Canada, replacing a working air conditioner takes 14.3 years to pay back, which is slow. When yours needs replacing anyway, the extra cost of the efficient model comes back in 3.4 years.
An efficient air conditioner cuts electricity by 33%: about 250 kWh, worth C$35.00 a year in Canada. Worth it when replacing
- From
- Window unit from before 2010, EER around 8, about 750 kWh a year
- To
- ENERGY STAR window unit, CEER 12 or more, about 500 kWh a year
- Usage
- 750 hours of cooling a year, the official US test assumption
| Scenario | You pay | Payback | Net over its life |
|---|---|---|---|
| Replace a working air conditioner now | C$500.00 | 14.3 years | −C$150.00 |
| Replacing anyway: choose the efficient one | C$120.00 | 3.4 years | C$230.00 |
Prices are typical figures; type your own quotes above. Net over its life is the total saving over the years it lasts minus what you pay. It ignores inflation, interest and changes in electricity prices, which is conservative while prices are rising.
Our take
Choose an efficient unit when the old one needs replacing: the extra cost comes back in a few summers. Replacing a working unit only pays where it runs far more than the 750 hours a year the official test assumes, as in Texas, Florida or Arizona, so double the hours if that is you.
How the two models compare
| Inefficient | Efficient | |
|---|---|---|
| Model | Window unit from before 2010, EER around 8 | ENERGY STAR window unit, CEER 12 or more |
| Electricity per year | 750 kWh | 500 kWh |
| Cost per year here | C$105.00 | C$70.00 |
| Over 10 years | C$1,050 | C$700.00 |
Usage behind these figures: 750 hours of cooling a year, the official US test assumption. Basis: US DOE room air conditioner test procedure: 750 hours of use a year (10 CFR 430, Subpart B, Appendix F). EER 8 vs CEER 12 is a third less electricity for the same cooling; ENERGY STAR notes 30 to 50% savings replacing pre-2000 units. The Air Conditioner (Window Unit) page prices the appliance at its own typical hours, which you can change there.
The same upgrade in other countries
| Country | Saving per year | Payback, replacing now | Payback, replacing anyway | Verdict |
|---|---|---|---|---|
| United States (average) | $45.85 | 10.9 years | 2.6 years | Worth it when replacing |
| United Kingdom | £65.80 | 7.6 years | 1.8 years | Worth it when replacing |
| Germany | €92.50 | 5.4 years | 1.3 years | Worth it when replacing |
| France | €50.02 | 10.0 years | 2.4 years | Worth it when replacing |
| Australia | A$87.50 | 5.7 years | 1.4 years | Worth it when replacing |
| Canada (average) | C$35.00 | 14.3 years | 3.4 years | Worth it when replacing |
Local electricity prices, with the same purchase price read in local currency, which is a simplification. The saving column is what matters: the higher the price of electricity, the faster any upgrade pays back.
Other upgrades in Canada, fastest payback first
- LED Light Bulbsaves C$13.16 a year · worth it now
- Dehumidifiersaves C$75.60 a year · worth it when replacing
- Electric Water Heatersaves C$429.24 a year · worth it when replacing
- Pool Pumpsaves C$196.56 a year · worth it when replacing
- Wi-Fi Routersaves C$14.70 a year · worth it when replacing
- Electric Sauna Heatersaves C$237.58 a year · not for the electricity
- Chest Freezersaves C$43.40 a year · worth it when replacing
- Hot Tubsaves C$357.70 a year · not for the electricity
- Clothes Dryersaves C$63.00 a year · worth it when replacing
- Refrigeratorsaves C$60.20 a year · worth it when replacing
- Desktop Computersaves C$42.98 a year · not for the electricity
- Space Heatersaves C$126.00 a year · not for the electricity
- Electric Stovesaves C$20.44 a year · not for the electricity
- Dishwashersaves C$19.60 a year · not for the electricity
- Washing Machinesaves C$13.30 a year · not for the electricity
- Televisionsaves C$10.22 a year · not for the electricity