Wayne 21642 Blower Wheel

The Wayne 21642 Blower Wheel is a precision-engineered OEM combustion part specifically designed for the Wayne HSG 400 power gas burner series. This critical component ensures stable air-to-fuel ratios by delivering consistent static pressure, making it essential for high-efficiency combustion air supply in commercial and residential heating plants. Constructed for rigorous industrial use, the wheel features a 5.50-inch outer diameter and a 1/2-inch bore, optimized for 3450 RPM operation when paired with compatible split-phase motors. Its balanced blade geometry minimizes vibration, reducing mechanical stress on the motor shaft and housing while maintaining high-velocity airflow for Blue Angel and Blue Angel Plus burner configurations.

For service technicians performing maintenance on HSG series gas burners, replacing a worn or fouled HVAC blower wheel is vital to preventing soot accumulation and flame instability. The Wayne Combustion 21642 is built to withstand the thermal demands of negative draft fired appliances, ensuring reliable burner blower performance and consistent heat distribution. Proper installation of this replacement blower fan facilitates optimal flame rectification and high-speed rotation within the HSG 400 blower housing, restoring the system to original manufacturer specifications without the need for field modifications.

• OEM Compatibility: Specifically engineered for a drop-in fit on Wayne HSG 400 and Blue Angel burner assemblies.
• Enhanced Static Pressure: Precision blade pitch provides the necessary combustion airflow for stable firing rates up to 400,000 BTU/hr.
• Engineered Balance: Factory-balanced design reduces operational noise and prevents premature failure of the 1/7 HP or 1/8 HP burner motor.
• Industrial Construction: Features durable blower materials capable of maintaining structural integrity at high-RPM industrial service.

What is the bore size of the Wayne 21642 blower wheel?
This blower wheel features a standard 1/2-inch bore, designed for a secure fit on the driveshafts of compatible Wayne burner motors.

Which burner models is this wheel compatible with?
The 21642 is the primary HSG 400 replacement part and is also utilized in Blue Angel and Blue Angel Plus gas conversion burners.

How does a damaged blower wheel affect burner performance?
A compromised wheel leads to reduced combustion air volume, causing poor fuel mixing, increased CO production, and potential safety shutdowns due to erratic flame sensing.

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.