For commercial clothes washers, water use efficiency is evaluated based on the water factor. This standard industry calculation for water use intensity is defined as the number of gallons used per cubic feet of clothes washer volume. Typically, commercial laundries cleanse fabrics that are significantly more soiled than fabrics washed in residential settings.
Requirements and certification
Commercial clothes washers have a water factor of 6.0 or less and an ENERGY STAR® label.
ENERGY STAR® labels are awarded only to front-loading and top-loading clothes washers that have capacities of greater than 1.6 cubic feet (ft3).
Installation of the appliance is to be field-verified by the Inspector. To receive credit, a clothes washer must be installed by the time of inspection.