A DIY garage mini split can warm your shop, but fit, leaks, and power count....
https://annamaid.com/how-much-can-i-save-by-avoiding-a-new-230v-circuit-200-to-800/
A DIY garage mini split can warm your shop, but fit, leaks, and power count. Learn to size it, check a 15A breaker, seal gaps, and price the job