The Lennox 56L55 is an OEM-specified 52 LP (liquid propane) burner orifice engineered for use in compatible Lennox gas furnace applications. Burner orifices are precision-drilled components that regulate the flow of LP gas into the burner assembly, directly influencing combustion efficiency, flame stability, and overall heating performance. Replacing a worn or incorrect orifice with the factory-specified Lennox part helps restore proper gas metering and ensures safe, efficient operation.
Key Features
- OEM Lennox replacement burner orifice
- Sized to 52 drill specification for LP (liquid propane) gas
- Precision-drilled for accurate gas flow metering
- Designed for compatible Lennox gas furnace burner assemblies
- Supports proper combustion efficiency and flame stability
- Direct OEM replacement for simplified installation
Application
This orifice is intended for use in Lennox gas furnaces configured for LP gas operation. Always verify compatibility with your specific furnace model before installation. Consult the furnace service manual or a qualified HVAC technician to confirm the correct orifice size and gas type for your unit.
Product Specifications
- Brand: Lennox
- Part Number / SKU: 56L55
- Orifice Number: 52
- Gas Type: LP (Liquid Propane)
- Type: Burner Orifice








