Once it's hot, keep it hot - the HOTMASTER is constructed using a pressure-tested steel drum, mounted on a well-balanced cart with three 400x8 pneumatic tires, one a locking swivel wheel. Includes a 2.5" Draw-off Valve set 27" above ground level. Note: 110 Gallon hot luggers are available on special order. Note: image is of a 30 gallon Hotmaster.