Lennox 45L15 Orifice
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Lennox 45L15 Orifice

Lennox 45L15 Orifice

The Lennox 45L15 natural gas burner orifice is a critical precision component engineered for exact fuel metering in residential and commercial gas heating systems. Featuring a .089 orifice diameter, this part is calibrated to maintain specific BTU input rates, ensuring stable flame patterns and optimal combustion efficiency. Designed as a direct Lennox OEM replacement part, it eliminates the performance variances often associated with generic furnace components. Technicians should verify manifold pressure during installation to ensure this fixed orifice delivers the correct gas flow across the burner manifold. Built from high-grade brass to resist thermal degradation and corrosion, the 45L15 orifice provides the durability required for high-cycle heating applications. Proper sizing is essential for preventing delayed ignition or excessive carbon monoxide production. This furnace burner orifice is compatible with a wide range of G series units, making it a staple for service vans performing mid-winter repairs or proactive system tune-ups.

Key Performance Benefits

  • Precision Machined: The .089 bore ensures accurate natural gas flow rate for consistent heat exchanger loading.
  • OEM Compatibility: Guaranteed fit for Lennox gas furnaces, reducing diagnostic time and installation labor.
  • Durable Brass Construction: Resists soot buildup and maintains structural integrity under constant thermal stress.
  • Optimized Combustion: Helps maintain the proper air-to-fuel ratio, preventing burner resonance and inefficient firing.

Common Technical Questions

What is the drill size for the .089 orifice?
The .089 diameter corresponds to a #43 drill size, typically utilized in high-altitude adjustments or standard natural gas configurations depending on the furnace's BTU rating.

Can this orifice be used for Propane (LP) conversions?
No, this specific orifice is sized for natural gas. LP conversions require a significantly smaller diameter due to the higher energy density and pressure of liquid propane.

How do I check for orifice obstructions?
During maintenance, inspect the bore for spider webs or scale. Use an approved solvent if necessary, but never use an oversized drill bit which would ruin the metering precision of the part.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$13.13

Original: $37.52

-65%
Lennox 45L15 Orifice

$37.52

$13.13

Lennox 45L15 Orifice

The Lennox 45L15 natural gas burner orifice is a critical precision component engineered for exact fuel metering in residential and commercial gas heating systems. Featuring a .089 orifice diameter, this part is calibrated to maintain specific BTU input rates, ensuring stable flame patterns and optimal combustion efficiency. Designed as a direct Lennox OEM replacement part, it eliminates the performance variances often associated with generic furnace components. Technicians should verify manifold pressure during installation to ensure this fixed orifice delivers the correct gas flow across the burner manifold. Built from high-grade brass to resist thermal degradation and corrosion, the 45L15 orifice provides the durability required for high-cycle heating applications. Proper sizing is essential for preventing delayed ignition or excessive carbon monoxide production. This furnace burner orifice is compatible with a wide range of G series units, making it a staple for service vans performing mid-winter repairs or proactive system tune-ups.

Key Performance Benefits

  • Precision Machined: The .089 bore ensures accurate natural gas flow rate for consistent heat exchanger loading.
  • OEM Compatibility: Guaranteed fit for Lennox gas furnaces, reducing diagnostic time and installation labor.
  • Durable Brass Construction: Resists soot buildup and maintains structural integrity under constant thermal stress.
  • Optimized Combustion: Helps maintain the proper air-to-fuel ratio, preventing burner resonance and inefficient firing.

Common Technical Questions

What is the drill size for the .089 orifice?
The .089 diameter corresponds to a #43 drill size, typically utilized in high-altitude adjustments or standard natural gas configurations depending on the furnace's BTU rating.

Can this orifice be used for Propane (LP) conversions?
No, this specific orifice is sized for natural gas. LP conversions require a significantly smaller diameter due to the higher energy density and pressure of liquid propane.

How do I check for orifice obstructions?
During maintenance, inspect the bore for spider webs or scale. Use an approved solvent if necessary, but never use an oversized drill bit which would ruin the metering precision of the part.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

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Description

The Lennox 45L15 natural gas burner orifice is a critical precision component engineered for exact fuel metering in residential and commercial gas heating systems. Featuring a .089 orifice diameter, this part is calibrated to maintain specific BTU input rates, ensuring stable flame patterns and optimal combustion efficiency. Designed as a direct Lennox OEM replacement part, it eliminates the performance variances often associated with generic furnace components. Technicians should verify manifold pressure during installation to ensure this fixed orifice delivers the correct gas flow across the burner manifold. Built from high-grade brass to resist thermal degradation and corrosion, the 45L15 orifice provides the durability required for high-cycle heating applications. Proper sizing is essential for preventing delayed ignition or excessive carbon monoxide production. This furnace burner orifice is compatible with a wide range of G series units, making it a staple for service vans performing mid-winter repairs or proactive system tune-ups.

Key Performance Benefits

  • Precision Machined: The .089 bore ensures accurate natural gas flow rate for consistent heat exchanger loading.
  • OEM Compatibility: Guaranteed fit for Lennox gas furnaces, reducing diagnostic time and installation labor.
  • Durable Brass Construction: Resists soot buildup and maintains structural integrity under constant thermal stress.
  • Optimized Combustion: Helps maintain the proper air-to-fuel ratio, preventing burner resonance and inefficient firing.

Common Technical Questions

What is the drill size for the .089 orifice?
The .089 diameter corresponds to a #43 drill size, typically utilized in high-altitude adjustments or standard natural gas configurations depending on the furnace's BTU rating.

Can this orifice be used for Propane (LP) conversions?
No, this specific orifice is sized for natural gas. LP conversions require a significantly smaller diameter due to the higher energy density and pressure of liquid propane.

How do I check for orifice obstructions?
During maintenance, inspect the bore for spider webs or scale. Use an approved solvent if necessary, but never use an oversized drill bit which would ruin the metering precision of the part.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.