Posted on March 27, 2021 by admin difference between a tank and bottle? Inquiry: Could you tell me the difference between a tank and bottle? Outdoorstirfry: A tank is 20lbs, usually used in people’s back yard. A bottle is 1lb. People can use it in camping/hiking trip because of much lighter weight. Post navigationPrevious post: Function of the wheelNext post: How does the electronic ignition work?