The Lennox 18L59 Inshot Burner Assembly, part number 619796-07, is a genuine OEM replacement burner assembly designed to restore proper combustion performance in compatible Lennox gas-fired unit heaters. This assembly features seven precision-formed inshot burners engineered to deliver consistent flame characteristics, efficient fuel distribution, and stable heat output. Manufactured to original Lennox specifications, it ensures proper fitment, safe operation, and long-term reliability when servicing commercial and light industrial heating equipment.

This OEM inshot burner assembly is commonly used in select Lennox LF25 series unit heaters and other compatible models. Using an authentic Lennox replacement burner helps maintain factory-rated efficiency, supports proper ignition and flame sensing, and reduces the risk of uneven heating or combustion-related faults. Ideal for professional HVAC technicians performing burner replacement, system refurbishment, or preventative maintenance.

 

Product overview:

Genuine Lennox OEM inshot burner assembly with a 7-burner configuration designed for reliable gas combustion, consistent heat distribution, and direct replacement in approved Lennox unit heater applications.

 

Specification:

Burner type: Inshot burner assembly
Number of burners: 7
Fuel type: Natural gas (verify application requirements)
Application: Lennox commercial and unit heater systems
OEM status: Factory original replacement part