Versatile Timing: Validated for use with various Hot Surface Ignition (HSI) systems

it ensures direct compatibility with legacy and modern Heil

this mounting hardware ensures the drive assembly remains balanced and silent during operation

Look for signs of water staining or white "crusty" deposits (calcification) around the edges of the plastic collector box or underlying components

Durable Construction: Engineered with thermally protected internal windings and corrosion-resistant metals for continuous air-over duty in demanding environments

Tjernlund Products 950-0017 Impeller R-407A Versatile Timing: Validated for useThe Tjernlund Products 950 0017 Impeller is a precision engineered stainless steel centrifugal fan blade designed specifically for SS2 and SS2G side wall vent systems. In high demand mechanical venting applications, the SS2 blower wheel replacement must withstand corrosive flue gases and high thermal loads. This genuine OEM Tjernlund part is factory balanced to eliminate shaft vibration, protecting the motor bearings and ensuring whisper quiet