Thanks GitPicker, Sleepy, CmcDar and many others for the replies. Don't get pissed off if your name isn't listed. I'm hesitant to page back through the replies and potentially lose this edit I'm working on.
as Sleepy has pointed out the issue of power may be a big deal and I suppose those with less solar panels then the Wynns would consider that energy budget an issue in the Winter; I know I will. I do wonder in the Winter how much energy it would take to keep the compost pile viable (the pile will generate some of its own heat tho if kept at operating temps), but having Winter camped extensively (dry) with my old camper it would be nice to have a couple of modern facilities going that. Anyway in terms of energy, how much energy does it take in the basement to keep all the pipes and tanks from freezing for example?
I am planning roof mounted and free standing solar panels with lithium batteries so I hope the power for the pit is the least concern compared to other electrical needs in the Winter. There will be no home except the TC so the pit will have to be functional in the long term.
I wonder how such devices have been improved over the years making them more user friendly and functional(?)
The Wynns had a lot of info and I'm going to glean some gotcha thoughts from this thread and write the Wynns; see what they have to say. I'll report in if they give some interesting retorts.
B