Water Heater Types:
Two main categories: Storage type (gas and electric) and Tankless.
Gas Water Heater Anatomy:
Draft Diverter: Located at the top, connects to flue piping. Allows fresh air to mix with flue gases.
Cold Water Inlet: Always on the right side.
Pressure Relief Valve: Located at the top for safety.
Dip Tube: Directs cold water to the bottom of the tank to avoid mixing with hot water.
Flue Baffle:
Twisted metal piece inside the flue passage. Slows down flue gases to retain more heat in the water.
Components at the Bottom:
Drain Valve: For maintenance.
Gas Burner: Works with the gas valve and thermostat.
Thermostat: Direct immersion sensor controls water temperature.
Tank Construction:
Glass Lined Tank: Steel tank with a glass (ceramic/enamel) lining to prevent rusting.
Foam Insulation: Retains heat within the water heater.
Metal Jacket: Thin outer layer protecting the insulation.
Anode Rod: Essential for preventing rust; should not be removed.
Hot Water Outlet: Always on the left side.
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