Laars Heating Systems RA2113700 Combustion Blower
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Laars Heating Systems RA2113700 Combustion Blower

Laars Heating Systems RA2113700 Combustion Blower

The Laars Heating Systems RA2113700 Combustion Blower is a critical pressure-inducing component engineered for high-efficiency gas-fired appliances. As a veteran technician knows, maintaining the correct air-to-fuel ratio is paramount for clean combustion and preventing heat exchanger sooting. This OEM replacement part is specifically designed to meet the static pressure requirements of Laars NeoTherm and Mighty Therm2 series boilers and volume water heaters. It serves as a direct replacement for part ID 324878, ensuring the venting system overcomes internal resistance to safely discharge flue gases. Operating as a high-performance forced draft blower, it facilitates the essential pre-purge and post-purge cycles necessary for safe ignition sequences. With a shipping weight of approximately 4.3 lbs, this assembly features a robust housing and precision-balanced impeller to minimize vibration and bearing wear during continuous duty cycles. Integrating this Laars combustion fan restores factory-spec airflow, optimizing thermal efficiency and reducing emissions across natural gas and propane configurations.

Key Benefits
  • Ensures precise combustion air supply for stable flame signals and optimal fuel economy.
  • Direct OEM compatibility with NeoTherm NTH105 and specific Mighty Therm models ensures seamless mechanical and electrical fit.
  • Rugged construction designed to withstand high-temperature environments near the combustion chamber.
  • Maintains proper venting pressure to prevent pressure switch tripping and system lockout.
  • Precision-engineered motor helps maintain quiet operation while delivering required CFM for industrial-grade heating.
Common Questions

Which Laars models use the RA2113700 blower?
This combustion air blower is commonly found in the Laars NeoTherm (sizes 80-105) and Mighty Therm2 (MT2) series. Always verify the part number against your specific unit's data plate or parts list, as induction motors vary by BTU rating.

What are the signs that a combustion blower needs replacement?
Technicians should look for excessive bearing noise, a failure to close the air pressure switch, or visible corrosion on the housing. If the motor fails to reach the required RPM during the pre-purge cycle, the ignition control will prevent the gas valve from opening.

Does this blower include the mounting gasket?
While the RA2113700 is the primary blower assembly, it is professional best practice to inspect and replace the blower gasket (often part S2104400 or similar) during installation to prevent flue gas leakage at the mounting interface.

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.

$665.80
Laars Heating Systems RA2113700 Combustion Blower
$665.80

Laars Heating Systems RA2113700 Combustion Blower

The Laars Heating Systems RA2113700 Combustion Blower is a critical pressure-inducing component engineered for high-efficiency gas-fired appliances. As a veteran technician knows, maintaining the correct air-to-fuel ratio is paramount for clean combustion and preventing heat exchanger sooting. This OEM replacement part is specifically designed to meet the static pressure requirements of Laars NeoTherm and Mighty Therm2 series boilers and volume water heaters. It serves as a direct replacement for part ID 324878, ensuring the venting system overcomes internal resistance to safely discharge flue gases. Operating as a high-performance forced draft blower, it facilitates the essential pre-purge and post-purge cycles necessary for safe ignition sequences. With a shipping weight of approximately 4.3 lbs, this assembly features a robust housing and precision-balanced impeller to minimize vibration and bearing wear during continuous duty cycles. Integrating this Laars combustion fan restores factory-spec airflow, optimizing thermal efficiency and reducing emissions across natural gas and propane configurations.

Key Benefits
  • Ensures precise combustion air supply for stable flame signals and optimal fuel economy.
  • Direct OEM compatibility with NeoTherm NTH105 and specific Mighty Therm models ensures seamless mechanical and electrical fit.
  • Rugged construction designed to withstand high-temperature environments near the combustion chamber.
  • Maintains proper venting pressure to prevent pressure switch tripping and system lockout.
  • Precision-engineered motor helps maintain quiet operation while delivering required CFM for industrial-grade heating.
Common Questions

Which Laars models use the RA2113700 blower?
This combustion air blower is commonly found in the Laars NeoTherm (sizes 80-105) and Mighty Therm2 (MT2) series. Always verify the part number against your specific unit's data plate or parts list, as induction motors vary by BTU rating.

What are the signs that a combustion blower needs replacement?
Technicians should look for excessive bearing noise, a failure to close the air pressure switch, or visible corrosion on the housing. If the motor fails to reach the required RPM during the pre-purge cycle, the ignition control will prevent the gas valve from opening.

Does this blower include the mounting gasket?
While the RA2113700 is the primary blower assembly, it is professional best practice to inspect and replace the blower gasket (often part S2104400 or similar) during installation to prevent flue gas leakage at the mounting interface.

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.

Product Information

Shipping & Returns

Description

The Laars Heating Systems RA2113700 Combustion Blower is a critical pressure-inducing component engineered for high-efficiency gas-fired appliances. As a veteran technician knows, maintaining the correct air-to-fuel ratio is paramount for clean combustion and preventing heat exchanger sooting. This OEM replacement part is specifically designed to meet the static pressure requirements of Laars NeoTherm and Mighty Therm2 series boilers and volume water heaters. It serves as a direct replacement for part ID 324878, ensuring the venting system overcomes internal resistance to safely discharge flue gases. Operating as a high-performance forced draft blower, it facilitates the essential pre-purge and post-purge cycles necessary for safe ignition sequences. With a shipping weight of approximately 4.3 lbs, this assembly features a robust housing and precision-balanced impeller to minimize vibration and bearing wear during continuous duty cycles. Integrating this Laars combustion fan restores factory-spec airflow, optimizing thermal efficiency and reducing emissions across natural gas and propane configurations.

Key Benefits
  • Ensures precise combustion air supply for stable flame signals and optimal fuel economy.
  • Direct OEM compatibility with NeoTherm NTH105 and specific Mighty Therm models ensures seamless mechanical and electrical fit.
  • Rugged construction designed to withstand high-temperature environments near the combustion chamber.
  • Maintains proper venting pressure to prevent pressure switch tripping and system lockout.
  • Precision-engineered motor helps maintain quiet operation while delivering required CFM for industrial-grade heating.
Common Questions

Which Laars models use the RA2113700 blower?
This combustion air blower is commonly found in the Laars NeoTherm (sizes 80-105) and Mighty Therm2 (MT2) series. Always verify the part number against your specific unit's data plate or parts list, as induction motors vary by BTU rating.

What are the signs that a combustion blower needs replacement?
Technicians should look for excessive bearing noise, a failure to close the air pressure switch, or visible corrosion on the housing. If the motor fails to reach the required RPM during the pre-purge cycle, the ignition control will prevent the gas valve from opening.

Does this blower include the mounting gasket?
While the RA2113700 is the primary blower assembly, it is professional best practice to inspect and replace the blower gasket (often part S2104400 or similar) during installation to prevent flue gas leakage at the mounting interface.

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.