When performing field maintenance or capacity adjustments on the 496 series

000 Ohm NTC Thermistor (Type II) sensing element

you will typically need the 20-001-12 or 20-001-13 variant

Why are the spade terminals different sizes

Exact Geometry: Featured 70-degree sensor bend and 1-7/8 inch extension length ensures the rod is positioned perfectly within the burner flame for rapid detection

Reznor 196688 Air Restricter When performing field maintenance orThe Reznor 196688 Air Restricter is a critical combustion air management component engineered specifically for Reznor UDAP and UDAS unit heaters. This primary air restrictor is precision stamped to regulate the volume of air entering the venter motor assembly, ensuring the stoichiometric ratio remains within factory tolerances. Maintaining the correct combustion air flow is essential for preventing premature heat exchanger fatigue and ensuring stable