are you talking about the yurts or the picture?
concerning yurts, according to the guy who runs that website, they cost 70 to 130€ per sqm, compared to normal housing which costs 1300 to 1500 per sqm. and it is getting cheaper.
for heating, I don't know. normal housing usually has gas, oil, long distance heating etc., for a yurt a stove for firewood would probably suffice, albeit you can use the normal heating as well. it doesn't take as long to heat because there are no cold stones around that need to warm up, but you will have to heat continuously because the warmth tends to go away faster.
another big plus point is that in some countries yurts are legally considered tents, which makes things a lot easier and still cheaper.
concerning heating, there's another pretty genious thing: the "Biomeiler" by Jean Pain, I think they call it brown/heating mound in english.
I'll let these videos explain the technique:
part 1:
[youtube]a4jrskze_UU[/youtube]
part 2:
[youtube]aXKvJn8HNoA[/youtube]
there's a plethora of people out there working on new housing solutions, and there's even more information for that kind of stuff, which I'm very grateful for, but it can be overwhelming sometimes :lol:
http://www.thatroundhouse.info/
http://www.simondale.net/house/index.htm
^ cool projects.
edit: roughly translated the upsides of yurts:
" * smallest possible ecological footprint
* no soilsealing
* almost completely compostable
* space energetic healing effect (
) for inhabitants and surroundings
* energy autarkic
* it's cheap!
* it's easy to build and requires relatively little work
* it's aesthetic! "
I'm completely for those things. my mind right now revolves around the thought/fantasy of living a self-sustainable life. if my father is ok with it (which I think he will be), I have at least 2000sqm of ground to my disposal. it should be enough for a few chickens, maybe a goat and lots and lots of vegetables using permaculture techniques. there's lots of stuff I haven't worked out yet, but I won't give in to the popular idea that it isn't possible or even desirable.