Dunkirk Boiler Parts — Browse All Models

Common Dunkirk boiler replacement parts

• Burner. The boiler burner is a metal tube lined with small holes that distributes gas to create a flame for heating.
• Low water level limit control. The low water level limit control signals the unit to shut down when the water levels falls below a safe level.
• Aquastat control. The aquastat control monitors and controls water temperature inside the boiler tank.
• Burner roll-out limit switch. The boiler burner roll-out limit switch detects when the flame flares out the front of the burner box and shuts down the burner to prevent overheating.
• MCBA control assembly. The boiler MCBA control assembly monitors the outlet and return water temperatures, and starts and stops the burners to maintain the set temperature.

Dunkirk boiler maintenance tips

Check the flue passages, combustion chamber, burner flame size, control operations and boiler seals and gaskets yearly. Before starting your Dunkirk boiler each season, check the system for water, oil and vent leaks. Repair any leaks before starting the boiler. Inspect the boiler vent system monthly for corrosion, leaks or soot buildup. Replace any leaking or corroded components. Clean soot out of the vent as needed.

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