Below is a list of Ovens manufacturers from Portsmouth, Rhode Island. Ovens are thermal processing machines that apply heat to a product. Many industries make use of ovens. In the food service and production industries, ovens are used to remove liquids from food through drying, curing, baking, dehydrating and aging. In industrial contexts, they are used to activate adhesives, gel or fuse materials together, heat-set, heat-shrink, preheat, sinter, melt, heat-treat, laminate and thermal bond materials.