Worcester Boiler Plate Heat Exchanger (PHE) (20 Plate) 87161082120 with Repair Kit

Product Overview

The Worcester Boiler Plate Heat Exchanger (20 Plate) 87161082120 with Repair Kit is a replacement hydraulic service kit designed for use within selected Worcester heating systems.

The 20-plate heat exchanger (PHE) transfers heat from the boiler's primary heating circuit to the domestic hot water circuit without mixing the two water supplies. The included repair kit contains the seals and associated service components required during replacement, helping to ensure a reliable, leak-free installation.

A correctly functioning plate heat exchanger is essential for providing efficient domestic hot water while maintaining separation between the central heating and potable water circuits.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please check the available options from the dropdown menu.

Technical Insight & Common Failure Symptoms

The plate heat exchanger consists of multiple stainless steel plates that transfer heat efficiently between two separate water circuits. Over time, limescale, sludge, corrosion, or debris can restrict water flow or reduce heat transfer efficiency, affecting boiler performance.

Typical symptoms linked to a faulty or blocked plate heat exchanger include:

• Reduced or inconsistent domestic hot water temperature
• Hot water running hot and cold
• Poor hot water flow
• Boiler overheating during hot water demand
• Reduced heat transfer efficiency
• Internal leaks or contamination between circuits
• Limescale or sludge restricting water flow

Replacing the plate heat exchanger together with the supplied repair kit may help restore efficient heat transfer and reliable hot water performance.

Kit Contents

The kit includes:

• 87161082120 – 20-Plate Heat Exchanger (PHE)
• Repair kit containing compatible seals and associated service components

Please refer to the product images for the exact contents supplied.

Compatibility

Manufacturer Part Number (MPN): 87161082120

This part is designed for selected models within the Worcester Greenstar range.

Please strictly verify the manufacturer part number 87161082120 against your boiler's technical manual, exploded parts diagram, or existing component before ordering to guarantee correct fitment.

Safety Advice

Boiler heat exchangers are critical hydraulic components involving gas, water, pressure, and high temperatures. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.