Thinking about a DIY mini split system? These setups use pre-charged R-454B...

https://front-wiki.win/index.php/How_Many_BTUs_Do_I_Need_If_I_Follow_the_20_BTU_Per_Square_Foot_Rule%3F

Thinking about a DIY mini split system? These setups use pre-charged R-454B quick-connect linesets, so no vacuum pump or EPA Section 608 license is needed. Plus, 9K and 12K units come with easy 115V plug-in options