Industrial batch ovens are generally used for drying/ heating/ baking/ roasting/ curing/ ageing of chemicals, pharmaceuticals, food products, pan masala, P.V.C., plastics, dyes, paints, painted equipment, P.C.B., paper pulp, compound, tobacco, abrasives, powder coating, asbestos, footwear and various other products. These industrial ovens and oil fired ovens could be provided with vertical hot air or cross air flow system for uniform temperature. Heat could be generated by means of electric or infrared heaters/ steam/ thermic fluid/ oil/ gas fired system.