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Lennox

OEM Lennox Premix Burner — 15P34

SKU: LNX-15P34 Brand: Lennox
$49.95 $69.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 15P34 premix burner blends gas and combustion air ahead of ignition to deliver a clean, stable, high-efficiency flame in your Lennox gas furnace. Premix burners are used in modern condensing furnaces to hold a precise air-fuel ratio, which lowers emissions, quiets operation, and improves fuel economy. When this burner is in good condition, your furnace lights smoothly and heats consistently.

Common failure symptoms: A worn, corroded, or clogged burner can cause delayed or rough ignition, rumbling or popping on start-up, a yellow or flickering flame, soot buildup, short cycling, or lockouts triggered by weak flame sensing. Eroded or blocked burner ports disrupt combustion and can trip the furnace safety controls.

Why OEM matters: The Lennox 15P34 is manufactured to exact port geometry, orifice sizing, and alloy specifications for your furnace. The factory part guarantees correct flame shape, proper heat-exchanger loading, and full compliance with Lennox safety and efficiency ratings — something generic burners cannot reliably match. Choose OEM to protect efficiency and warranty coverage.

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

Frequently Asked Questions

Does this Burner fit my Lennox OEM Lennox Premix Burner — 15P34?
Yes. This is the factory-specified OEM burner for the Lennox OEM Lennox Premix Burner — 15P34. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the burner on my Lennox OEM Lennox Premix Burner — 15P34?
Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.
What symptoms mean I need a new burner?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this burner compatible with Bryant or Payne too?
Many Lennox parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Lennox burner?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
HVAC Parts Specialist — Online