Use a tag to mark the area in which the control is located, so that they can be cut out.
For the electric water heater unit,
geyser prices south africa there will be two panels on the side of the tank. For gas, you need to mark an arched hole around the gas valve and burner. Make sure that enough space is left around the valve and burner area. The opening is at least 1 inches wider than the valve and burner area. In addition, indicate where the pressure relief valve and piping are located. This will be a conduit extending from the side of the water heater.