We used six of these babies on "Phantom of the Opera" and I can tell you they really put out the fog. 16 gauge stainless steel tank holds 50 gallons of water. Diverter valve allows the pump to empty the tank without moving it from its position.
3000 watt heating elements are circuit breader protected. Indicator lights show status of water temperature and heating elements. Low water cutoff switch protection. Maintains temperature even during long rehearsals. Steel frame protects all components.