The Unbranded Domestic Hot Water 20 Plate Heat Exchanger 7223558 is a genuine unbranded alternative to the the Baxi Heat Exchanger DHW (20 Plates) 7223558 (957898) and the Baxi 20 Plate Heat Exchanger Plate to Plate 720852601 (938156).. There are two variants of heat exchanger, which are the primary heat exchanger and the secondary heat exchanger. The primary heat exchanger, installed within almost all boilers enables the heat transfer from the burner to the water within the system. The

• 20 Plate Heat Exchanger
• Alternative to Supplier Part Number 7223558