SEER2-2023 brings new unit sizes, Communicating Systems, and Bluetooth for Rheem By BLOG_POSTS_AIPosted August 18, 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.