Baxi DHW Plate Heat Exchanger (20 Plates) 7223558

One of the most common and frustrating boiler problems is a hot shower that suddenly runs cold. This inconsistency points directly to the heart of your combi boiler's hot water system: the plate heat exchanger. This genuine Baxi DHW Plate Heat Exchanger 20 Plates 7223558 is the definitive solution to restore the powerful, reliable hot water supply you depend on every day.

The Key to Instant Hot Water

The plate heat exchanger is a clever piece of engineering that provides the instant hot water we expect from a modern combi boiler. It is essential to efficiently heat your domestic hot water on demand by transferring heat from the boiler's primary circuit (the water that heats your radiators) across to the cold mains water heading to your taps. A series of thin metal plates stacked together creates a huge surface area, allowing for an incredibly rapid and efficient heat exchange without the two water sources ever physically mixing. This is how you can turn on a tap and get piping hot water almost immediately.

Over time, however, the narrow channels between these plates can become restricted. In hard water areas, limescale is the main culprit, building up layer by layer. In any system, sludge and debris can also accumulate. The symptoms are unmistakable: your hot water fluctuates wildly between hot and cold, the pressure from the hot tap is noticeably weaker than the cold, or in the worst cases, the boiler fires up but fails to deliver any hot water at all.

This is where the Baxi DHW Plate Heat Exchanger 20 Plates 7223558 comes in. It is a genuine replacement part for various Baxi and Potterton combi boilers and is a key component for popular models like the Baxi Duo-tec, Platinum, and Potterton Gold HE series. It is engineered for perfect compatibility and performance as a genuine Baxi spare. Fitting this part restores consistent hot water, eliminating those frustrating temperature fluctuations for reliable showers and washing.

A clean, new plate heat exchanger also maximises your boiler's efficiency. Ensuring rapid heat transfer, it helps manage energy consumption and prevents the strain that a blocked part can put on other critical components. This protects the boiler's pump and other parts from undue strain, ensuring component longevity. Always choose genuine Baxi quality parts from Heating and Plumbing World for a lasting repair that protects your investment.

Technical Specifications

• Product: DHW Plate Heat Exchanger
• Brand: Baxi
• Manufacturer Part Number (MPN): 7223558
• Number of Plates: 20

Will This Fit My Boiler?

This 20-plate heat exchanger is designed for specific Baxi and Potterton models, including the Duo-tec and Platinum series. However, to ensure a successful repair, we strongly advise you to check your boiler's service and installation manual to confirm compatibility before placing your order. If you have any doubts or need assistance, our knowledgeable team is here to help. Please send us a message via our contact page, and we'll be happy to guide you.