Just wondering if anyone has ever used one of these Volcano Stove Swiss Ranger Kit? My wife bought one for me for Christmas from
https://www.cheaperthandirt.com/WX130-509-534.html

and we just tried it out and it worked great. It took about 5 minutes to boil water. I was not surte if that was fast or not but it seemed that way to me especially for something that only cost $4.00. Well just wondering if anyone has experience using these things.