DIY a mini split in your garage? See how to size it, check a 15A breaker, seal...
https://annamaid.com/how-much-can-i-save-by-avoiding-a-new-230v-circuit-200-to-800/
DIY a mini split in your garage? See how to size it, check a 15A breaker, seal the line-set hole, and plan for cold snaps