De Dietrich Plate heat exchanger 300009825

De Dietrich plate heat exchanger 300009825 is a heat exchanger component with a capacity of 24 gallons per hour and 12 plates. It is designed for use in De Dietrich boilers, specifically models WHE 2.24, WHE 2.24 FF, WHE 2.28 FF, and WHE 2.24 FF-3S. This part transfers heat from flue gases to heating water, and in combination boilers, it can produce domestic hot water. The unit is identified by SKU 300009825 and is categorized under heat exchangers.

When selecting a replacement plate heat exchanger of this type, verify that the number of plates, port spacing, and gasket profile match the original unit. The capacity is tied to the plate count and overall dimensions. Ensure the connections and material (e.g., stainless steel, copper, aluminium alloy) are compatible with the boiler model. Check the gasket type and condition before installation.

Typical failures include scaling on the water side, soot deposits on the gas side, gasket leaks, and corrosion where condensate collects in condensing appliances. Symptoms may include reduced heating efficiency, water leakage, or error codes on the boiler. Inspect the heat exchanger for these issues and check the condition of turbulators if present.