This Architectural Drawing is Section of Water heater details. Components Of A Gas Water Heater, The Tank, Dip Tube, And Discharge Pipe. The biggest component of your gas water heater is the tank, The Gas Burner And Assembly. With a gas water heater, the heat source is a gas burner, The Exhaust Flue, The Pressure Relief Valve And The Drain Valve. 3000 Watts with an instant capacity of 3 liters. High-pressure resistance capacity makes it suitable for high rise buildings. The high-power heating element heats water quicker. For more details and information download the drawing file.