Turbochef Electric Countertop High h Conveyor 2020™ Conveyor Oven. The HhC 2020 Rapid Cook Oven is capable of cooking sixty 12-inch pizzas in one hour. The first of its kind to be UL-certified for ventless operation. Single deck, 20" wide belt, 20" cook chamber, variable speed motor, idle mode, built-in self diagnostics, smart voltage sensor technology, cool to touch covers and panels, stainless steel front, top, sides and back cool touch exterior, stainless steel interior. Choose venting option when ordering.