What does SEER2 mean?-The ESCO HVAC Show-Episode10 By BEST_Technical_ExPosted May 14, 2023 We invite you to watch this important video to help you better understand changes that are affecting how many HVAC systems are … source How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.