Heres the site where you can read about the buddy:

http://www.mrheater.com/productdetail.asp?id=678

I dont notice any smell at all when using it.

You can buy these all over. Do a search online, or Cabelas, Walmart, Menards, I have seen them everywhere.

I always put a smoke and CO detector in my tent or camper when ever im sleeping inside. Just some more comfort for me.