The PMG-60 was designed primarily for batch-type washers and, because of its low rating, may be allowed to exhaust directly into the room in compliance with NFPA 54. The PMG-100 & PMG-200 models were designed to accommodate conveyor and flight-type washers, as well. Induced draft venting was employed to allow the customer to more readily comply with NFPA 54 when these higher ratings are added to the other appliances in the kitchen.