Installing a mini split yourself can save money but requires careful planning....

https://knoxuqsk688.cavandoragh.org/mini-split-temperature-drop-test-what-delta-should-i-see-at-the-vent

Installing a mini split yourself can save money but requires careful planning. In this article, I’ll walk you through drilling the correct 3.5-inch hole through your wall and choosing between 115V and 230V power options