Reznor 150838 Fan Blade

The Reznor 150838 Fan Blade is a critical direct-replacement component engineered for high-static efficiency in industrial unit heaters. This 25-inch fan blade features a 35-degree pitch and a 5-blade configuration, optimized to maintain precise CFM output and static pressure requirements. Designed with a 1/2-inch bore and configured for Clockwise (CW) rotation, this propeller is balanced to minimize vibration and bearing wear on the blower motor. When performing a Reznor heater fan replacement, matching the exact pitch and diameter is essential to prevent motor overloading or reduced heat exchanger airflow. This heavy-duty aluminum blade ensures reliable air distribution across the heat exchanger, making it the standard choice for OEM Reznor 150838 maintenance. Whether you are troubleshooting air delivery issues or conducting a seasonal overhaul, this industrial HVAC fan blade provides the exact dimensions required for seamless installation and peak thermal performance in large-scale Reznor heating units.

• Precision Balanced: Reduces harmonic vibration to extend the service life of the motor bearings and mounting brackets.
• Optimized Airflow: The 35-degree pitch is engineered to deliver high-volume air displacement while maintaining proper motor load.
• Direct OEM Fit: Eliminates the need for field modifications, ensuring the 1/2-inch hub seats perfectly on the motor shaft.
• Durable Construction: Built to withstand the high-temperature environment of gas-fired unit heaters without warping.

Common Reznor 150838 Questions

Which way should the Reznor 150838 fan rotate?
This blade is designed for Clockwise (CW) rotation. Always verify the rotation from the lead end of the motor or by checking the discharge side of the blade to ensure proper airflow direction over the heat exchanger.

Can I use a 25-inch blade with a different pitch?
No. Using a blade with a steeper pitch can increase the amperage draw beyond the motor's nameplate rating, leading to premature motor failure, while a shallower pitch will cause insufficient airflow and potential overheating of the unit.

Is the 1/2" bore size standard for all Reznor 150 units?
The 1/2-inch bore is common, but you must confirm the shaft diameter of your specific motor. Ensure the set screw is tightened onto the flat portion of the motor shaft during installation to prevent slipping.

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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.