OEM Lennox Combustion Head Cone End 1.00 GPH — 36K42
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The genuine OEM Lennox 36K42 combustion head cone end is a precision oil-burner component rated for a 1.00 GPH firing rate. This head shapes the fuel-air mixture leaving the nozzle, generating the swirl and flame-retention pattern required for clean, complete combustion in your Lennox oil-fired system. Its cone geometry is specifically calibrated to the 1.00 GPH nozzle flow for stable ignition and efficient burning.
A combustion head that is worn, cracked, or coated with carbon can cause sooting, hard or delayed starts, flame pulsation, smoky exhaust, and a noticeable drop in efficiency. Continuous heat exposure erodes the cone over time and distorts the flame pattern the burner depends on.
Installing the OEM 36K42 guarantees the exact Lennox-engineered fit and 1.00 GPH performance rating. Factory-correct combustion heads protect flame quality, keep emissions in check, and maintain your burner's designed efficiency. Confirm the 1.00 GPH rating matches your application — the higher-flow 36K43 covers 1.20 GPH.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
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Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days