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What is SEER2? Understanding the 2023 SEER Regulatory Changes

Two AC units beside each other - What is SEER2? Understanding the 2023 SEER Regulatory Changes
Posted on June 6, 2023
by Appleby Systems

This year, new regulations are set to reshape the HVAC industry in Canada. These changes bring more stringent testing standards and efficiency ratings, aiming to provide more accurate representations of field performance. One of the key terms you'll encounter in these new regulations is SEER2. Let's dive into what SEER2 means and how it impacts heat pump and air conditioner ratings. 

SEER Vs SEER2: What’s the Difference? 

SEER stands for Seasonal Energy Efficiency Ratio and is a measure of how efficient cooling systems are during hot weather. SEER2 is an upgraded version of this official ratio. 

SEER2 ratings will appear lower than SEER ratings, but this won’t mean they are describing a less efficient model. Instead, the way experts are measuring the efficiency of appliances has changed. 

What Does This Mean for Heat Pump Ratings?  

According to new guidelines, the minimum efficiency requirement for heat pumps is increasing from 14.0 to 15.0 SEER (Seasonal Energy Efficiency Ratio). This number, however, will be 14.3 in the new SEER2 rating system.  

Additionally, split-system heat pumps must have a minimum HSPF (Heating Seasonal Performance Factor) of 8.8. These changes ensure that heat pumps deliver higher performance and greater energy savings for Canadian homeowners. 

What Does This Mean for AC Ratings?  

Under the new regulations, the minimum efficiency requirement for central air conditioners will rise from 13.0 to 14.0 SEER (or 13.4 SEER2). 

That said, 13.0 SEER AC units manufactured before January 1, 2023, can still be installed in northern regions. 

New SEER Rating Breakdown 

New appliances will be labeled with the new SEER2 efficiency standards; however, these are measured differently than the previous SEER system. To clear up any confusion, we’ve put together this table to show you the equivalence between the old SEER rating system and SEER2. 

Category Minimum Efficiency (Pre-2023) Minimum Efficiency -SEER (2023) Minimum Efficiency - SEER2 (2023) 
Air Conditioners 13.0 SEER 14.0 SEER 13.4 SEER2 
Heat Pumps 14.0 SEER 15.0 SEER 14.3 SEER2 

Get High-Efficiency Cooling Appliances at Appleby Systems 

As these changes come into effect, it's essential to stay informed and prepared. Whether you're considering upgrading your heating or cooling system or need expert advice, consult with a reputable HVAC provider like Appleby Systems. Our knowledgeable team can guide you through the regulatory changes and help you choose the best HVAC solution for your home. 

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