For air conditioners in Canada, a good SEER2 rating typically falls within the 14–16 range. This range is considered ideal for Calgary’s climate because it strikes an effective balance between the initial upfront cost and long-term energy efficiency.
Key considerations for SEER2 ratings in Canada include:
- Efficiency Standards: As of January 1, 2026, Natural Resources Canada (NRCan) will require all newly installed central air conditioners to meet a minimum cooling efficiency of at least 14.0 SEER2.
- Real-World Performance: SEER2 uses the M1 testing procedure, which better reflects actual home conditions (such as ductwork resistance) compared to the older SEER standard. This means a 14.0 SEER2 unit delivers savings comparable to an older 15.5 SEER model.
- Climate Suitability: Because cooling demands in regions like Calgary are moderate compared to heating needs, moving significantly beyond 16 SEER2 may not always provide a necessary return on investment.
- Installation Quality: While a higher rating can reduce monthly electricity costs, the actual savings depend heavily on professional installation, proper sizing, and home characteristics like insulation and duct condition.
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