it typically indicates a pressure switch stuck open or closed

which are utilized in both steam and hot water heating systems

while the permanently lubricated ball bearings eliminate the need for manual oiling

Optimized Airflow: Designed with specific wire spacing to minimize system head pressure

Lochinvar & A.O. Smith 100110045 P-Tube 318423-701 it typically indicates a pressureThe Lochinvar & A. O. Smith 100110045 P Tube is a precision engineered pilot tube kit designed for high performance water heating and boiler applications. This 1 8" aluminum pilot tubing measures 20 inches in length, providing the necessary reach and flexibility for standard burner configurations. As a critical OEM replacement part, this tube ensures consistent gas delivery to the pilot assembly, maintaining the reliable ignition process required for