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Navien Circulation Pipe 30023519A

Navien

Navien Circulation Pipe 30023519A

Circulation pipe for the Navien LCB 700 Combi Internal 36KW boiler.

At a glance

  • Part type: circulation pipe
  • Appliance family: LCB 700 Combi Internal 36KW
Manufacturer part no.
30023519A
Showing prices

£18.19

£15.16 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 circulation pipe is a Navien component intended for the LCB 700 Combi Internal 36KW boiler. It forms part of the appliance's water circulation circuit, carrying water through the boiler's internal pipework. It is supplied as a single pipe with the manufacturer part number 30023519A.

Signs this part needs replacing

  • Visible weeping or water tracking at the pipe or its joints
  • Corrosion, pitting or surface deterioration on the pipe
  • Scale or debris build-up restricting flow through the pipe
  • Kettling, gurgling or unusual circulation noise from the boiler
  • Reduced or inconsistent hot water performance linked to the circulation circuit

Before you order

  • Confirm the appliance is an LCB 700 Combi Internal 36KW.
  • Check the serial number against the fitment listed for this part.
  • Compare the existing pipe against part number 30023519A before ordering.
  • Inspect the surrounding pipework and joints for related faults before replacing.

Not sure which part?

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