For end-switch models

you need a direct OEM replacement that matches the original furnace sequence of operation

Featuring a 3-inch insertion length (stilt type) and a distinct red sleeve for rapid identification during field service

When should I choose a time-delay fuse over a fast-acting fuse

which can lead to cracks in the electrical component enclosure

Reznor 97724 Ventor Wheel Els PW 17895 For end-switch modelsThe Reznor 97724 Ventor Wheel is a critical OEM component engineered for high performance combustion air delivery in Reznor gas fired unit heaters and duct furnaces. This precision balanced venter blower wheel features a 4 inch diameter and 2 inch width, specifically designed to interface with draft inducer motors to manage flue gas exhaust and optimize the combustion process. Built with a 3 4 inch bore, this wheel ensures a secure press fit or set