I've actually lived in a yurt for about 5 months on the Mongolian plains. The structure itself was quiet simply a natural wood frame with layers of felt over it. It could be taken down and set up in under an hour after you understand the basics. There was a very small iron stove in the middle for cooking and heating. Mostly dried dung was used for fuel. It rained a few times and was quite windy in the area. As long as you carefully chose the area to set up it was great for shedding water and not having leakage. The only downside I noted was if it got really wet out there was an odor from the wool. The people I was with claimed that smaller 1 person oblong yurts could be made for hunters which required no heating at all.