use a manometer to verify the actual draft

Can this switch replace a model with a different WC rating

OEM-Grade Specification: Ensures correct physical footprint and terminal alignments for fast field installation and reduced downtime

This drop-in Reznor 148057 unit is engineered for the rigors of industrial heating

Using this motor on a 50Hz supply will result in overheating and electrical failure

Lochinvar & A.O. Smith 100109879 Ignition Module 321702-401 use a manometer to verifyThe Lochinvar & A. O. Smith 100109879 Ignition Module is a critical OEM replacement part designed for high efficiency gas fired boiler and water heater systems. As a veteran grade intermittent pilot ignition (IID) control, this 6 pin module manages the electrical sequence of the pilot light and main burner, ensuring precise timing and safe operation. It integrates a sophisticated flame sensing circuit to prevent hazardous gas accumulation by