The Ultra Force™ SUF product line is the most efficient State commercial water heater line ever built. With a storage tank of up to 130 gallons, high BTU input and up to 96% thermal efficiency, these models deliver more hot water for every energy dollar. A single Ultra Force™ unit is an ideal energy-saving choice for restaurants and other mid-sized commercial applications. Multiple Ultra Force™ water heaters can be manifolded together to meet the demands of large commercial and industrial applications.