The Alpha 1.022221 DHW Heat Exchanger – CD28 is a genuine replacement domestic hot water heat exchanger designed to efficiently transfer heat from the boiler’s primary heating circuit into the domestic hot water system in compatible Alpha boiler models. Precision-engineered to the manufacturer’s exact standards, this heat exchanger ensures reliable hot water delivery at a consistent temperature, helping maintain comfortable performance while supporting energy-efficient operation. It is intended to be fitted by a qualified heating engineer during servicing, maintenance, or when replacing a worn, underperforming, or failed exchanger.

Compatibility for the 1.022221 DHW heat exchanger includes Alpha CD28 boiler models that utilise this specific domestic hot water exchanger design. Always confirm your boiler’s model and part requirements before installation to ensure correct fit and optimal performance.

Using a genuine Alpha DHW heat exchanger helps maintain efficient heat transfer, supports steady hot water output under varying demand, and contributes to the long-term reliability and smooth functioning of your central heating and hot water system.