Once the temperature drops below the 300°F threshold

including State and American Water Heater models that utilize the 100110936 or 9006143015 part numbers

it ensures exact fitment and maintains the factory-specified pressure regulation required for safe burner ignition and terminal efficiency

Confirm the part number against your equipment's wiring diagram or the original component label

Built on the proven Copelaweld R*T platform

Weil McLain 450-030-965 Plate 321142-301 Once the temperature drops belowThe Weil McLain 450 030 965 Clean Out Plate is a critical OEM component designed specifically for the Weil McLain 88 Series boilers. As a veteran technician, you know that maintaining the integrity of the heat exchanger is non negotiable for system longevity. This boiler cleanout plate provides necessary access to the internal flueways, allowing for the thorough removal of soot and combustion byproducts that compromise heat transfer. This specific