SEER, BTU, and Tonnage: An AC Buyer's Guide

https://s3.us-west-2.amazonaws.com/masshvac/uncategorized/7-signs-it39s-time-to-replace-your-old-ac-unit.html

If you've started shopping for a new air conditioner, you've encountered a set of technical terms that can make the process feel more complicated than it needs to be. SEER2. BTU/h. Tonnage. HSPF2