Great compact heater,i bought a Mr heater big buddy propane portable, but those 1 pound tanks are getting very expensive, this was at a steal during summer months so i snagged it and a 3 pack of butane canisters and its a well made,light weight,2 in 1 flip to heat up that chilli on the trail as you retire into your tent for a cold night ahead,its a cute compact unit,that on high all night it usually goes will burn up to 6 hours etc,now i wish i would have grabed 3 more as gifts to my wilderness friends who hike and hunt,camp,etc its a great heater and alot cheaper than burning propane, you can attach the big tanks as 20 pounders ,just grabbed the 12 canisters value pack today for upcoming snow ice storm on the way for the weekend!