Lennox 98M41 Gas Valve
As a seasoned technician, you know that a reliable fuel rack is the backbone of any furnace service call. The Lennox 98M41 is a genuine OEM 24v gas valve designed specifically for units requiring a 3.5" WC natural gas manifold pressure. This 1/2" NPT gas valve features a compact swing radius of 3-9/16”, making it an ideal HVAC replacement part for tight vestibules in residential Lennox, Armstrong, and Ducane furnaces. Engineered for intermittent pilot ignition and direct spark systems, it includes a redundant solenoid to ensure safe, controlled flow to the burners. Whether you are performing a routine furnace gas valve replacement or troubleshooting a "no heat" call, this White-Rodgers manufactured component provides the precise regulation needed for peak combustion efficiency. This valve replaces older 12L57 and LB-109101B models, ensuring natural gas furnace compatibility across multiple Lennox generations. Always verify your manifold pressure with a manometer after installation to ensure the Lennox 98M41 Gas Valve is dialed in for the specific BTU requirements of the heat exchanger.
Key Benefits for the Contractor
- OEM Compatibility: Direct replacement for Lennox 98M41, 12L57, and LB-109101B, eliminating the need for field modifications on the gas train.
- Standardized Connections: Features 1/2" NPT inlet and outlet with 1/4" quick-connect terminals for fast 24VAC wiring integration.
- Precision Regulation: Factory-set at 3.5" WC for natural gas, maintaining consistent manifold pressure for stable flame characteristics.
- Versatile Application: Qualified for use in a wide range of Lennox-family brands including Allied, Armstrong, and Concord.
- Rugged Construction: Built to withstand ambient temperatures ranging from -40°F to 175°F, suitable for unconditioned attic or crawlspace installs.
Common Questions from the Field
How do I confirm the Lennox 98M41 is the correct replacement for my valve?
Cross-check the part number on the existing valve casting or the unit’s serial plate. This 1/2" gas valve typically replaces the White-Rodgers 36E36-304 and equivalent Lennox-branded numbers like 12L5701.
Can the 98M41 be converted for use with Liquid Propane (LP)?
While factory-set for natural gas, this valve can be converted using a compatible White-Rodgers LP conversion kit (such as the 92-0659). You must swap the regulator spring and adjust the outlet pressure to approximately 10" WC per manufacturer specs.
What are the common symptoms of a failing Lennox gas valve?
Technicians usually see an "Ignition Failure" or "Watchdog" code on the integrated control board. If you have 24V at the terminals during the ignition trial but no gas flow to the burners, the solenoid has likely failed, necessitating a full Lennox gas valve assembly swap.
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.
Original: $692.48
-65%$692.48
$242.37Lennox 98M41 Gas Valve
As a seasoned technician, you know that a reliable fuel rack is the backbone of any furnace service call. The Lennox 98M41 is a genuine OEM 24v gas valve designed specifically for units requiring a 3.5" WC natural gas manifold pressure. This 1/2" NPT gas valve features a compact swing radius of 3-9/16”, making it an ideal HVAC replacement part for tight vestibules in residential Lennox, Armstrong, and Ducane furnaces. Engineered for intermittent pilot ignition and direct spark systems, it includes a redundant solenoid to ensure safe, controlled flow to the burners. Whether you are performing a routine furnace gas valve replacement or troubleshooting a "no heat" call, this White-Rodgers manufactured component provides the precise regulation needed for peak combustion efficiency. This valve replaces older 12L57 and LB-109101B models, ensuring natural gas furnace compatibility across multiple Lennox generations. Always verify your manifold pressure with a manometer after installation to ensure the Lennox 98M41 Gas Valve is dialed in for the specific BTU requirements of the heat exchanger.
Key Benefits for the Contractor
- OEM Compatibility: Direct replacement for Lennox 98M41, 12L57, and LB-109101B, eliminating the need for field modifications on the gas train.
- Standardized Connections: Features 1/2" NPT inlet and outlet with 1/4" quick-connect terminals for fast 24VAC wiring integration.
- Precision Regulation: Factory-set at 3.5" WC for natural gas, maintaining consistent manifold pressure for stable flame characteristics.
- Versatile Application: Qualified for use in a wide range of Lennox-family brands including Allied, Armstrong, and Concord.
- Rugged Construction: Built to withstand ambient temperatures ranging from -40°F to 175°F, suitable for unconditioned attic or crawlspace installs.
Common Questions from the Field
How do I confirm the Lennox 98M41 is the correct replacement for my valve?
Cross-check the part number on the existing valve casting or the unit’s serial plate. This 1/2" gas valve typically replaces the White-Rodgers 36E36-304 and equivalent Lennox-branded numbers like 12L5701.
Can the 98M41 be converted for use with Liquid Propane (LP)?
While factory-set for natural gas, this valve can be converted using a compatible White-Rodgers LP conversion kit (such as the 92-0659). You must swap the regulator spring and adjust the outlet pressure to approximately 10" WC per manufacturer specs.
What are the common symptoms of a failing Lennox gas valve?
Technicians usually see an "Ignition Failure" or "Watchdog" code on the integrated control board. If you have 24V at the terminals during the ignition trial but no gas flow to the burners, the solenoid has likely failed, necessitating a full Lennox gas valve assembly swap.
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.
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Description
As a seasoned technician, you know that a reliable fuel rack is the backbone of any furnace service call. The Lennox 98M41 is a genuine OEM 24v gas valve designed specifically for units requiring a 3.5" WC natural gas manifold pressure. This 1/2" NPT gas valve features a compact swing radius of 3-9/16”, making it an ideal HVAC replacement part for tight vestibules in residential Lennox, Armstrong, and Ducane furnaces. Engineered for intermittent pilot ignition and direct spark systems, it includes a redundant solenoid to ensure safe, controlled flow to the burners. Whether you are performing a routine furnace gas valve replacement or troubleshooting a "no heat" call, this White-Rodgers manufactured component provides the precise regulation needed for peak combustion efficiency. This valve replaces older 12L57 and LB-109101B models, ensuring natural gas furnace compatibility across multiple Lennox generations. Always verify your manifold pressure with a manometer after installation to ensure the Lennox 98M41 Gas Valve is dialed in for the specific BTU requirements of the heat exchanger.
Key Benefits for the Contractor
- OEM Compatibility: Direct replacement for Lennox 98M41, 12L57, and LB-109101B, eliminating the need for field modifications on the gas train.
- Standardized Connections: Features 1/2" NPT inlet and outlet with 1/4" quick-connect terminals for fast 24VAC wiring integration.
- Precision Regulation: Factory-set at 3.5" WC for natural gas, maintaining consistent manifold pressure for stable flame characteristics.
- Versatile Application: Qualified for use in a wide range of Lennox-family brands including Allied, Armstrong, and Concord.
- Rugged Construction: Built to withstand ambient temperatures ranging from -40°F to 175°F, suitable for unconditioned attic or crawlspace installs.
Common Questions from the Field
How do I confirm the Lennox 98M41 is the correct replacement for my valve?
Cross-check the part number on the existing valve casting or the unit’s serial plate. This 1/2" gas valve typically replaces the White-Rodgers 36E36-304 and equivalent Lennox-branded numbers like 12L5701.
Can the 98M41 be converted for use with Liquid Propane (LP)?
While factory-set for natural gas, this valve can be converted using a compatible White-Rodgers LP conversion kit (such as the 92-0659). You must swap the regulator spring and adjust the outlet pressure to approximately 10" WC per manufacturer specs.
What are the common symptoms of a failing Lennox gas valve?
Technicians usually see an "Ignition Failure" or "Watchdog" code on the integrated control board. If you have 24V at the terminals during the ignition trial but no gas flow to the burners, the solenoid has likely failed, necessitating a full Lennox gas valve assembly swap.
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.
