Thanks for the link, it will give me good ideas
Im going to upgrade my 2 rooms this summer for climate control and 100% hydro , possible co2.
I think 4,000 watts is all I want to run in the house. the 100 amp sub panel I put in just for the grow room is only fed by a 60 amp breaker so I would have to use 220VAC to run 8,000 watts.