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Glow-worm Heat Exchanger 0020123131

Glow-worm

Glow-worm Heat Exchanger 0020123131

10-plate heat exchanger, part 0020123131, for Glow-worm Compact 24C, Compact 24C P and Micracom 24C gas boilers.

At a glance

  • Also known as 1388938
Manufacturer part no.
0020123131
Showing prices

£120.23

£100.19 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Glow-worm 0020123131 is a 10-plate heat exchanger used in Glow-worm gas boilers. It transfers heat between the primary circuit and the domestic hot water supply in combi appliances. It is a serviceable component within the Compact and Micracom families.

Signs this part needs replacing

  • Domestic hot water runs hot then cold, or fluctuates at the tap
  • Reduced hot water flow rate compared with the cold supply
  • Scale or debris restricting the plate channels, common in hard water areas
  • Water weeping from the plate pack or its connections
  • Heating operates but hot water does not, or the reverse

Before you order

  • Confirm your appliance model against the fit list above
  • Check the existing unit has the same plate count before ordering
  • Inspect the seals and connections for damage before refitting
  • Isolate and drain the appliance before removal

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.