Installing a mini split system yourself can save time and money if you get the...

https://lilyluxemaids.com/senville-leto-noise-level-is-it-really-under-25-db-indoors/

Installing a mini split system yourself can save time and money if you get the basics right. This guide covers key steps like drilling the correct 3 to 3.5-inch hole for the line set and choosing between 115V and 230V power options