The Baxi 720852601 is a genuine OEM 20-plate domestic hot water (DHW) heat exchanger designed for a wide range of Baxi, Main, and Potterton combi boilers. This high-efficiency plate heat exchanger transfers heat from the primary circuit to the domestic hot water supply, delivering strong, consistent hot water performance.

Limescale, sludge, and debris can restrict flow through the plates over time, causing temperature fluctuations, poor hot water flow, or complete DHW failure. Replacing it with this genuine Baxi heat exchanger restores optimal heat transfer and reliable hot water output.

Key Features:

• Genuine Baxi 20-plate DHW heat exchanger

• Provides rapid and efficient hot water heating

• Restores stable temperature and strong flow rate

• Helps resolve DHW faults, hot/cold cycling & restricted flow

• Built to strict Baxi OEM quality standards

• Durable stainless-steel construction

• Direct-fit replacement for fast, professional installation

Compatibility

The Baxi 720852601 Heat Exchanger is compatible with selected models across:

• Baxi

• Main

• Potterton

Including common ranges such as:

• Baxi Duo-tec

• Baxi Platinum

• Baxi EcoBlue

• Main Eco / Eco Elite

• Potterton Promax Combi

Any appliance listing 720852601 in the manufacturer’s official parts documentation is compatible.