Is disassembly required before brazing

and a furnace label to ensure a clean

Is the 4074BWJ compatible with manual reset models

this switch should remain closed

Lennox 21709 Blower Wheel Els PW 17895 Is disassembly required before brazingThe Lennox 21709 Blower Wheel is a critical OEM replacement part engineered for high performance air delivery in residential and commercial furnace blower assemblies. This 10 5 8" x 7 1 8" centrifugal blower wheel features a 1 2" bore size and a robust 1 set screw design to ensure a secure, vibration free connection to the direct drive blower motor shaft. Designed for clockwise (CW) rotation (hub end), this wheel provides precise 48 blade alignment