Lennox 25W74 Manifold 319852-301 the 205445 features a Single

the 205445 features a Single Pole Single Throw (SPST) configuration

or if there is evidence of moisture streaks around the collector box

This unit is compatible with various 90% AFUE and higher models

The Hydrolevel 48-3250-58 Replacement Sensor is a 4-foot (48-inch) thermistor assembly specifically engineered for Hydrostat boiler controllers

Lennox 25W74 Manifold 319852-301 the 205445 features a SingleThe Lennox 25W74 Gas Manifold (OEM part number 100795 01) is a precision engineered gas distribution component designed for high efficiency residential and light commercial furnace burners. As a critical point of regulation, this manifold ensures localized gas pressure is balanced across all burner tubes, facilitating consistent ignition and optimal combustion cycles. Built with heavy duty materials to withstand thermal stress and pressure