Credit: BSH Home Appliances Corp.
Bosch manufactures over two dozen residential dishwashers that exceed federal energy factor (EF(EF). Efficiency measure for rating the energy performance of dishwashers, clothes washers, water heaters, and certain other appliances. The higher the energy factor, the greater the efficiency. In some appliances EF reflects the percentage of energy going into the appliance that is turned into useful energy.) standards by at least 80%. Their most efficient models use only 180 kWh per year, average 1.57 gallons per cycle, and achieve an EF of 1.23, the best in the US. Their EcoSense feature determines the soil level of the water and eliminates fresh water fills if not needed. A maximum noise level of 40 dB is the result of three layers of cotton fiber insulation surrounding a stainless steel tub, a triple- or quadruple-filtration system in place of a disposal unit, and a suspended, two-pump motor system that reduces vibration and noise.