Description
Lennox 16A77 Pilot Orifice Overview
The Lennox 16A77 is an OEM replacement pilot orifice designed to maintain accurate and consistent gas metering to the pilot burner assembly in compatible Lennox heating systems. Proper pilot orifice sizing is critical to reliable ignition performance — a correctly calibrated orifice ensures the pilot flame is stable, properly sized, and capable of dependably lighting the main burner on every call for heat.
Key Features
- OEM Lennox replacement part for precise fit and function
- Engineered to meter gas flow accurately to the pilot burner
- Supports stable pilot flame for consistent main burner ignition
- Helps maintain system efficiency and safe operation
- Direct replacement minimizes downtime during service calls
Application
The 16A77 pilot orifice is intended for use in Lennox furnaces and heating appliances equipped with a standing or intermittent pilot ignition system. Always verify compatibility with the specific Lennox model before installation. Consult the equipment service manual for proper orifice sizing and installation procedures.
Why Choose an OEM Pilot Orifice?
Using a genuine Lennox replacement orifice ensures the gas metering hole diameter matches original factory specifications. An improperly sized orifice can result in a weak or oversized pilot flame, leading to ignition failures, nuisance lockouts, or unsafe operating conditions. The Lennox 16A77 restores factory performance and helps extend the service life of the pilot assembly.
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