Machines like this have versatile heat control, meaning you can turn the heat up or down on the front, back or both sections of the hot dog roller. Although there are seven heat settings, these machines requires no ventilation system, making them perfect for a variety of applications. Many machines have a removable grease drip pan for easy clean-up. Simply place a hot dog roller grill behind the counter in your concession stand or even on the countertop in a convenience store, and your hot dog sales are sure to soar.