Hot dog machines and grills from Rowlett & Rollergrill. The three most popular way to cook hot dogs is in either a steamer, rotisserie or on a roller grill. Hot dog machines are a very popular item for schools, concession stands, snack bars, festivals and fairs. Roller grills use heating elements inside of each roller to heat and maintain the desired temperature. Rotisseries are enclosed with a rotisserie that holds the hot dog and passes under a fixed heating element. Steamers are totally enclosed and cook by using steam that is generated from a well under the holding area.