The air conditioning system has been around for over a century. The first electro-mechanical model was installed in a Chicago paper plant in 1902. But people tend to think of air conditioning technology as static—current ACs are pretty much just the same as the air conditioners from back in the ‘80s and ‘90s.
Thankfully, nothing could be further from the truth. In fact, over the last 5 years of development, we’ve gone from having 16 SEER air conditioners (SEER is a measure of energy efficiency) as the highest in cooling efficiency. Now it’s common for homeowners to purchase 25 SEER air conditioners.