OEM Lennox Inshot Burner — 20J87
OEM Guaranteed
Same-Day Ship
30-Day Returns
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The genuine OEM Lennox 20J87 inshot burner mixes gas and air and directs a clean, controlled flame into the heat exchanger to produce the heat your Lennox furnace delivers to your home. Precisely shaped venturi and flame ports ensure complete combustion, stable ignition carryover between burners, and efficient heat transfer.
Common failure symptoms: A corroded, cracked, or clogged 20J87 can cause rough or delayed ignition, a yellow or lazy flame, sooting, flame rollout, or uneven heating. Rust flakes and debris in the burner ports disrupt the air-fuel mix and can trigger safety lockouts.
Why OEM matters: Burner port sizing, orifice alignment, and flame geometry are engineered specifically for your Lennox furnace and its gas type. An incorrect aftermarket burner can burn dirty, misalign with the flame sensor and igniter, or promote heat exchanger stress. Installing the factory 20J87 restores a crisp blue flame, proper combustion, and the safe, efficient performance Lennox intended.
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