The EU1000i MSRP is $949, so it might be an issue if frugal is a factor. But it is one of the most
talked about and praised portable generators on the market. They are supposed to be very quiet.
Sounds like you plan to spend some time in your van/camper when you finish it, and maybe some
of it will be in cooler weather? Running the electronics and cooling shouldn't be too problematic,
nor the hot plate, and George Foreman for short stints. The issue is getting some heat for the van
on cold nights? As markopolo says it could probably be done off of batteries assuming you had lots
of them and could recharge them in time for the next evening's requirement. I wonder if one of those
oil filled heaters would work here (marko and VernM swear by them as I recall
- and some people
also swear by extra blankets and 2 or 3 dogs on top of them)?
For heating, IMO, a small propane furnace is still your best bet. However that's not an option, as your
preference is no propane or gas. (Propane would also give you another way to heat water, and cook)
My only suggestion would be to ask your questions on 2 other forums I know of, where they may have
more all weather/season campers, and perhaps some of them have faced, and possibly solved, this problem.
RV Net, they have all shapes and sizes of RVs and plenty of full timers.
4 Season Camping Forum - as the name suggests.
They're both free to join, and are just as friendly as this place.