Baxi 7225723 DHW 16 Plate Heat Exchanger
Baxi 7225723 DHW 16 Plate Heat Exchanger Kit The Baxi 7225723 DHW 16 Plate Heat Exchanger is a genuine Baxi boiler spare designed to restore reliable domestic hot water performance in selected compatible Baxi, Main and Potterton combi boilers. Also known as a DHW plate heat exchanger, secondary heat exchanger or 16 plate heat exchanger, this component transfers heat from the boiler’s primary heating circuit into the domestic hot water circuit. In a combi boiler, it helps provide instant hot water to taps and showers without the need for a separate hot water cylinder. A blocked, scaled, leaking or restricted plate heat exchanger can cause poor hot water performance, fluctuating hot water temperature, reduced flow temperature, boiler cycling, kettling noises or hot water running warm then cold. Replacing the plate heat exchanger can help restore efficient hot water delivery when correctly diagnosed by a qualified heating engineer. Key Features Genuine Baxi DHW plate heat exchanger Manufacturer part number: 7225723 EAN / GTIN: 5039177790358 Replaces previous part references 248048 and 5114708 Product type: Domestic Hot Water Heat Exchanger / Secondary Heat Exchanger 16 plate heat exchanger design Designed to transfer heat from the boiler primary circuit to the domestic hot water circuit Suitable for selected Baxi, Main and Potterton combi boilers, subject to checks Helps restore hot water performance where the existing plate heat exchanger is blocked, scaled or leaking Commonly supplied with seals and mounting screws, subject to supplier packaging Ideal for professional boiler servicing, fault diagnosis and repair Common Compatibility Selected Baxi 105E combi boilers Selected Baxi 105HE combi boilers Selected Baxi Eco 25 and Eco 30 combi boilers Selected Baxi Eco Elite 25 and Eco Elite 30 combi boilers Selected Main Eco and Main EcoElite combi boilers Selected Potterton Performa 28 and Performa 30HE models Other compatible appliances using original part reference 7225723, subject to GC number and appliance checks Common Symptoms of a Faulty DHW Heat Exchanger Hot water runs warm then cold Fluctuating hot water temperature Poor domestic hot water performance Reduced hot water temperature at taps or showers Boiler cycles on and off during hot water demand Kettling or noise during hot water operation Possible internal leaking around the heat exchanger area Scale, sludge or debris restriction inside the plate heat exchanger Important Compatibility Information This part is intended for compatible appliances using original part number 7225723. Compatibility can vary depending on the exact boiler model, GC number, production date and appliance version. Always compare the existing component and confirm suitability before ordering. This part may replace older references including 248048 and 5114708, but compatibility must still be checked against the appliance manual and existing fitted part. Professional Installation Required This boiler component should only be fitted by a suitably qualified heating engineer. Gas boiler servicing and repairs must be carried out by a Gas Safe registered engineer in accordance with current UK regulations and the appliance manufacturer’s instructions.