The Alpha 1.022220 Domestic Hot Water (DHW) Heat Exchanger is a genuine replacement plate heat exchanger designed to restore efficient hot water performance in Alpha CD25 and CD25HE boilers. This component transfers heat from the primary circuit to the hot water supply, ensuring consistent temperature, strong flow rates, and reliable hot water delivery.

Over time, heat exchangers can become blocked by scale, debris, or sludge, causing fluctuating temperatures, poor flow, or a complete loss of hot water. Replacing it with this genuine Alpha part restores full system efficiency.

Compatible With

This heat exchanger is suitable for:

Alpha CD25

Alpha CD25HE

Please confirm the part number (1.022220) with your boiler manual to ensure correct compatibility.