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

When performing field maintenance or capacity adjustments on the 496 series

it also replaces part numbers for Allied

also identified as the Model BFK-084

Reznor 196688 Air Restricter you will typically need theThe 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