Used stainless steel storage tank with total volume 850 liters, and working volume about 700 liters. Tank has internal diameter 1100 mm x length of straight side of the wall 900 mm. Bottom has Conical shape and central discharge outlet with valve. Inside the tank there is an insert of heating/cooling system of 4 integrated copper coils. Tank has removable top cover with opened lid. Tank is mounted on carbon steel supporting frame and legs.