Laars Heating Systems RS2105200 O-Ring
The Laars Heating Systems RS2105200 Venturi O-Ring is a critical sealing component engineered for high-efficiency condensing boilers and commercial water heaters. This OEM replacement part ensures a precise, airtight seal between the venturi and the blower assembly, which is vital for maintaining the correct air-fuel ratio during combustion. Specifically designed for the Laars NeoTherm series, these o-rings prevent vacuum leaks that can lead to erratic burner behavior, ignition failure, or reduced thermal efficiency. Sold as a 2-pack, this kit allows technicians to replace both the inlet and outlet seals simultaneously, ensuring a robust repair and preventing future service calls. Constructed from high-grade synthetic elastomers, the RS2105200 is built to withstand the thermal cycling and chemical exposure typical of high-performance hydronic systems. When performing routine maintenance on NTH-500 through NTH-850 models, installing fresh venturi gaskets is a non-negotiable step to verify system integrity and safe operation.
Key Benefits:
- Optimized Combustion: Eliminates air infiltration to maintain the factory-specified gas valve venturi mixture.
- Broad Compatibility: Direct fit for Laars NeoTherm LC and standard NTH series boilers from 150 to 850 MBTU.
- Preventative Reliability: Genuine Laars furnace parts reduce the risk of CO leaks and pressure switch errors.
- Dual Seal Kit: Includes two o-rings to complete a full venturi assembly overhaul in one visit.
Common Questions:
What are the symptoms of a failing venturi o-ring?
A degraded o-ring typically causes "hunting" during the ignition sequence, whistling noises from the blower, or HVAC fault codes related to the air pressure switch or flame rectification.
Is the RS2105200 compatible with all NeoTherm models?
This part is the standard venturi seal replacement for the NTH and NTV lines, including large commercial variants like the NEOTHERM-LC-1000. Always verify your specific serial number for exact fitment.
Why is an OEM o-ring required instead of a generic hardware store seal?
Generic seals often lack the specific durometer and chemical resistance needed to survive the corrosive environment of a Laars boiler burner housing, leading to premature failure and potential safety hazards.
This item is not eligible for free shipping.
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: $39.90
-65%$39.90
$13.96Laars Heating Systems RS2105200 O-Ring
The Laars Heating Systems RS2105200 Venturi O-Ring is a critical sealing component engineered for high-efficiency condensing boilers and commercial water heaters. This OEM replacement part ensures a precise, airtight seal between the venturi and the blower assembly, which is vital for maintaining the correct air-fuel ratio during combustion. Specifically designed for the Laars NeoTherm series, these o-rings prevent vacuum leaks that can lead to erratic burner behavior, ignition failure, or reduced thermal efficiency. Sold as a 2-pack, this kit allows technicians to replace both the inlet and outlet seals simultaneously, ensuring a robust repair and preventing future service calls. Constructed from high-grade synthetic elastomers, the RS2105200 is built to withstand the thermal cycling and chemical exposure typical of high-performance hydronic systems. When performing routine maintenance on NTH-500 through NTH-850 models, installing fresh venturi gaskets is a non-negotiable step to verify system integrity and safe operation.
Key Benefits:
- Optimized Combustion: Eliminates air infiltration to maintain the factory-specified gas valve venturi mixture.
- Broad Compatibility: Direct fit for Laars NeoTherm LC and standard NTH series boilers from 150 to 850 MBTU.
- Preventative Reliability: Genuine Laars furnace parts reduce the risk of CO leaks and pressure switch errors.
- Dual Seal Kit: Includes two o-rings to complete a full venturi assembly overhaul in one visit.
Common Questions:
What are the symptoms of a failing venturi o-ring?
A degraded o-ring typically causes "hunting" during the ignition sequence, whistling noises from the blower, or HVAC fault codes related to the air pressure switch or flame rectification.
Is the RS2105200 compatible with all NeoTherm models?
This part is the standard venturi seal replacement for the NTH and NTV lines, including large commercial variants like the NEOTHERM-LC-1000. Always verify your specific serial number for exact fitment.
Why is an OEM o-ring required instead of a generic hardware store seal?
Generic seals often lack the specific durometer and chemical resistance needed to survive the corrosive environment of a Laars boiler burner housing, leading to premature failure and potential safety hazards.
This item is not eligible for free shipping.
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
The Laars Heating Systems RS2105200 Venturi O-Ring is a critical sealing component engineered for high-efficiency condensing boilers and commercial water heaters. This OEM replacement part ensures a precise, airtight seal between the venturi and the blower assembly, which is vital for maintaining the correct air-fuel ratio during combustion. Specifically designed for the Laars NeoTherm series, these o-rings prevent vacuum leaks that can lead to erratic burner behavior, ignition failure, or reduced thermal efficiency. Sold as a 2-pack, this kit allows technicians to replace both the inlet and outlet seals simultaneously, ensuring a robust repair and preventing future service calls. Constructed from high-grade synthetic elastomers, the RS2105200 is built to withstand the thermal cycling and chemical exposure typical of high-performance hydronic systems. When performing routine maintenance on NTH-500 through NTH-850 models, installing fresh venturi gaskets is a non-negotiable step to verify system integrity and safe operation.
Key Benefits:
- Optimized Combustion: Eliminates air infiltration to maintain the factory-specified gas valve venturi mixture.
- Broad Compatibility: Direct fit for Laars NeoTherm LC and standard NTH series boilers from 150 to 850 MBTU.
- Preventative Reliability: Genuine Laars furnace parts reduce the risk of CO leaks and pressure switch errors.
- Dual Seal Kit: Includes two o-rings to complete a full venturi assembly overhaul in one visit.
Common Questions:
What are the symptoms of a failing venturi o-ring?
A degraded o-ring typically causes "hunting" during the ignition sequence, whistling noises from the blower, or HVAC fault codes related to the air pressure switch or flame rectification.
Is the RS2105200 compatible with all NeoTherm models?
This part is the standard venturi seal replacement for the NTH and NTV lines, including large commercial variants like the NEOTHERM-LC-1000. Always verify your specific serial number for exact fitment.
Why is an OEM o-ring required instead of a generic hardware store seal?
Generic seals often lack the specific durometer and chemical resistance needed to survive the corrosive environment of a Laars boiler burner housing, leading to premature failure and potential safety hazards.
This item is not eligible for free shipping.
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.
