Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, namely, commercial baking oven, convections ovens, pastry ovens, electrical modular deck ovens, rotary rack ovens for baking bread, viennese pastry and confectionery; prover cabinets used to control temperature and humidity for controlled fermentation in the field of baking; prover chambers used to control temperature and humidity for controlled fermentation in t...