I have no future plans to upgrade, at least where I am living now. I also took a look at SS Brewtech's Electric 1V: https://www.ssbrewtech.com/products/ebrewing-1v-system?variant=16553330147399 Looks like a Male L6-30 plug (Looks like I'd need a 30amp GFCI)...I already have everything else SS, they're just very pricey overall. BUT, I love the idea of the Grainfather. Looks sick!If you have no big expansion plans the most cost effective way would be to run a 240V, 20A circuit and use a 6-20R receptacle. The Grainfather would be a direct plug-in.
There have been suggestions to "future proof" by putting in a 30A or 50A 120/240V circuit and I'm not expressly against that. But, going from 12/2 wire to 10/3 or especially 6/3 for a 50A circuit will increase the wire cost by a pretty sizable amount.