Keeping warm, off the grid..
First of all, in NY you're really going to have to build your house so that you get the most solar gain. That means you situate the house so that one side of it faces South and then you put as many windows as you can on that side. When the sun goes down, many people will hang quilted curtains over these windows to help keep the heat in.
What kind of heat source did your friends have? I know it has it's downfalls, but I think that using a wood fueled stove surrounded by stone, you can build up a good thermal mass in the house. I can't remember the name right now, but J was telling me about a certain kind of stove that you can just fire up once a day and it will keep your house toasty all day long. Does anyone know what they're called?
I think you can probably find lots of info at Mother Earth News.com
Best of luck! Our dream is to be completely off the grid, too!
