Baxi / Potterton Boiler Plate Heat Exchanger (20 PL) 7223558 was 5114708 248723
Trade-ready part listing Verify SKU, product condition and appliance compatibility before ordering.
National Boiler Spares
SKU N3767-1

Baxi / Potterton Boiler Plate Heat Exchanger (20 PL) 7223558 was 5114708 248723

Baxi / Potterton Boiler Plate Heat Exchanger (20 PL) 7223558 was 5114708 248723 Product Overview The Baxi / Potterton Boiler Plate Heat Exchanger 7223558 is a component designed for use within selected Baxi ...
Availability Available to order
Product code N3767-1
Brand National Boiler Spares
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Product information

Technical details

Baxi / Potterton Boiler Plate Heat Exchanger (20 PL) 7223558 was 5114708 248723

Product Overview

The Baxi / Potterton Boiler Plate Heat Exchanger 7223558 is a component designed for use within selected Baxi and Potterton heating systems. This 20-plate domestic hot water (DHW) plate heat exchanger transfers heat from the boiler's primary heating circuit to the domestic hot water circuit while keeping the two water circuits separate.

Part number 7223558 supersedes previous manufacturer part numbers 5114708 and 248723. As an important boiler component, the plate heat exchanger supports domestic hot water production and normal boiler operation.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please select your preferred option from the dropdown menu above. Refurbished units are professionally inspected and tested to help ensure reliable operation. Please verify compatibility before purchasing to ensure correct fitment.

Technical Insight & Common Servicing Requirements

The plate heat exchanger transfers heat between the sealed central heating circuit and the incoming mains water supply without allowing the two water circuits to mix. During normal operation, internal scaling, debris, or general wear may reduce its efficiency and affect hot water performance.

During routine servicing or repair work, engineers may inspect or replace the plate heat exchanger due to:

  • Internal scaling or restricted water flow
  • Reduced domestic hot water performance
  • Fluctuating hot water temperatures
  • Poor hot water flow rate
  • Internal leakage between water circuits
  • Preventative replacement during major boiler servicing

A faulty plate heat exchanger may affect domestic hot water operation and can result in inconsistent water temperatures, reduced hot water flow, or other hot water-related issues.

Compatibility

This part (MPN: 7223558, replaces 5114708 & 248723) is designed for models within the Baxi and Potterton ranges. Please strictly verify the part number against your boiler's technical manual before ordering to guarantee correct fitment.

Safety Advice

Boiler parts involve gas, water, electricity, and heating system components. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations.