is the critical seal required for McDonnell & Miller 47 Series

This aluminized burner tube is a direct fit for Reznor B-series and F-series (specifically F25 through F100) unit heaters

the /B suffix typically denotes a bulk or revised packaging designation

it resists debris erosion and chemical degradation

Heil Quaker ICP 1013862 Pressure Switch Els PW 17895 is the critical seal requiredThe Heil Quaker ICP 1013862 Pressure Switch is a critical OEM safety component designed for 80% AFUE two stage gas furnaces. This dual vent pressure switch assembly is calibrated with specific set points of 0. 30" WC and 0. 59" WC to monitor the static pressure produced by the inducer motor. As a veteran technician knows, maintaining the correct vacuum is vital for ensuring the furnace flues safely and the burner sequence initiates correctly. This ICP