OEM Lennox Burner Box Bottom — 19C77
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Lennox 19C77 burner box bottom is the base panel of the burner compartment in your Lennox gas furnace. It supports and locates the burner assembly, provides the lower seal of the combustion area, and works with the box top and support brackets to keep the burners squarely aligned with the gas orifices and heat exchanger inlets.
A rusted, warped, or damaged burner box bottom can cause burners to sag or shift out of position, produce uneven flames or delayed ignition, allow combustion-air leaks, and generate rattles or rollout faults. Deterioration of this base panel undermines both the alignment and the sealed containment that safe, efficient heating depends on.
OEM matters because 19C77 is fabricated to Lennox's exact shape, gauge, and high-temperature rating, so it seats precisely and holds the burners in their factory-set geometry. Aftermarket panels can misfit and throw off burner spacing. Choose this genuine Lennox base to restore proper burner support and a correctly sealed combustion compartment.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
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