Thomas, just a note about the MiniSplit power...it will need to land on the outside of the building as the disconnect goes near the outside unit. The inside unit is fed from the outside unit. Generally, that will also require a 240v GFCI breaker and many folks also install a surge suppressor at the disconnect or at the panel. Be sure you have the full specs for the unit you intend to have installed so that the electrical is done correctly for it.
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The most expensive tool is the one you buy "cheaply" and often...