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Potterton Heat Exchanger 5/1-45KW 5141405

Potterton

Potterton Heat Exchanger 5/1-45KW 5141405

Heat exchanger for Potterton Commercial Sirius 2 and Sirius 3 WH50 boilers, supplied under part number 5141405.

Manufacturer part no.
5141405
Showing prices

£1,095.60

£913.00 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
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 Potterton heat exchanger 5/1-45KW is a primary heat exchanger for Potterton Commercial gas boilers. It transfers heat from the combustion gases into the boiler water circuit. It is supplied under Potterton part number 5141405.

Signs this part needs replacing

  • Visible scale, sludge or corrosion on the waterways
  • Leaks or weeping at the heat exchanger joints or gaskets
  • Boiler locking out or failing to reach temperature
  • Kettling, banging or rumbling noises from the boiler
  • Reduced heat output to the heating or hot water circuit

Before you order

  • Confirm the boiler model on the appliance data plate matches the fit list above.
  • Check the existing heat exchanger against Potterton part number 5141405.
  • Isolate the gas and electrical supplies and drain the boiler before removal.
  • Check the condition of the seals and gaskets on the existing assembly.

Not sure which part?

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