Lennox 31J35 620 Pilot Assembly .

The Lennox 31J35 620 Pilot Assembly is a pilot burner that is manufactured to high standards for use in different HVAC systems with a special focus on gas furnaces and boilers. This critical component is significantly essentialfor lighting the main burner of the heating system and therefore assures absolute reliability of operation. This pilot burner is used during the start-up of the gas-fired HVAC equipment. It operates by creating a small flame that lights the gas supplied to the main burners e time the thermostat demands heat.