I bought a Lil Buddy propane heater for the boat. I set out to buy the coleman everybody, including Consumers I think, reccomended. But I got this one because it can be secured nicely on its four legs right in front of the porta potti. Also I like the idea of matchless ignition and especially of an O2 sensor with auto shut off. The couple times i used it it heats very well with one 1lb canister lasting all day. My question is this-if I shut the heater down,turn it to off,the pilot light goes out. Is propane leaking out if the tank is still attached?. Do I have to remove the tank when I turn the heater off? Thanking you in advance..