This architectural drawing is GAS HEATER TANK design in detail AutoCAD drawing, dwg file, CAD file. A hot water storage tank is a type of water tank that is used to store hot water for home consumption or space heating. A succession of burners that are lit in the combustion chamber power gas heaters and furnaces. The heat produced when the igniter or pilot light ignites moves into the heat exchanger, pushing the air through and raising its temperature. For more details and information download the drawing file.