irect Answer: SEER2 is the updated 2023-2026 federal standard for measuring energy efficiency; a higher SEER2 rating means the unit uses less electricity to cool your home.

If you’re comparing a new system to one you bought 15 years ago, even a "base model" today is significantly more efficient. Moving from an old SEER 10 unit to a new SEER2 16 unit can often cut your cooling costs by 30% or more.