Installing a mini split yourself can save money but requires careful planning....
https://astro-wiki.win/index.php/Senville_LETO_Noise_Level:_Is_It_Really_Under_25_dB_Indoors%3F
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