Blomberg Appliances DW15120 Built in Dishwasher-Standard Tub Quiet Operation - By utilizing three layers of insulation including bituminous material, cotton insulation and side walls, Blomberg dishwashers are among the most quiet in the market. Flow Through Heater - The heater is concealed to provide a safer and more convenient alternative to the conventional exposed heater. 12 Place Settings5 Programs4 Wash Temperatures