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Saunier Duval Heat Exchanger Pipe Inferior 0020018459

Saunier Duval

Saunier Duval Heat Exchanger Pipe Inferior 0020018459

Heat exchanger pipe inferior for Saunier Duval Thema Condens and Themaplus Condens gas boilers.

At a glance

  • Also known as 1416613
Manufacturer part no.
0020018459
Showing prices

£26.40

£22.00 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 heat exchanger pipe inferior is a pipe assembly used on Saunier Duval Thema Condens and Themaplus Condens gas boilers. It forms part of the lower pipework connection to the heat exchanger, carrying water through the primary circuit. The part is manufactured by Saunier Duval and identified by part number 0020018459.

Signs this part needs replacing

  • Visible water weeping or staining around the lower heat exchanger connection
  • Corrosion, pitting or surface deterioration on the pipe body
  • Scale or debris build-up restricting flow through the pipe
  • Unexplained loss of system pressure requiring frequent topping up
  • Overheating or poor primary circuit circulation linked to a restricted or leaking pipe

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the existing part number 0020018459 on the component or in the manufacturer's parts list
  • Inspect the pipe unions, seals and washers for condition before fitting
  • Verify the appliance GC number matches your boiler's data badge

Not sure which part?

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