it features a high-temperature porcelain insulator and a durable stainless steel rod tip to withstand the harsh environment of the burner assembly while ensuring rapid flame detection during the crucial four-second proving window

Engineered for industrial-grade durability in high-cycle HVAC control systems

this part is specifically for natural gas applications

Ensure all old gasket material is removed from the head chamber and bellows base to prevent uneven compression and potential leaks

Lennox 47K09 Orifice it features a high-temperature porcelainThe Lennox 47K09 Natural Gas Burner Orifice is a precision engineered OEM replacement part designed for specific natural gas furnace and heating applications. This #42 orifice spud is calibrated to ensure the correct air to fuel ratio, facilitating optimal combustion and consistent flame stability across the burner assembly. As a veteran technician knows, maintaining the exact orifice size is critical for achieving the rated BTU input of the