Installing a mini split system yourself in the US can be a smart move—if you’re...

https://wiki-quicky.win/index.php/Why_You_Need_a_Permit_to_Install_a_Mini_Split:_5_Practical_Reasons

Installing a mini split system yourself in the US can be a smart move—if you’re prepared. These compact, ductless heating and cooling units are known for efficiency, quiet operation, and flexible installation