[folivier]

Dang, makes me want to get another Newell. Well almost. Actually I'm interested in the latest generation of mini-splits with low ambient temperature heat pump feature for our cabin. Not unusual to be at 0º F overnight and occasionally colder. Right now I have baseboard electric heating and wood stove. Electric is expensive up there so we burn wood, lots of wood. But I'm thinking really hard about a mini split for basic heating.
Jack your plans look great, especially the Growatt inverters. So they actually take 120 vac in and can give you separate phases for 240 vac? Incredible!