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Trianco SP221843 Tube Insulation 9, 11 & 12KW Boiler

Trianco

Trianco SP221843 Tube Insulation 9, 11 & 12KW Boiler

Tube insulation for Trianco Aztec Classic, Aztec Easyfit and INCA 9, 11 and 12KW electric boilers.

At a glance

  • Part type: tube insulation
  • Also known as 2191928, 2191940
Manufacturer part no.
SP221843
Showing prices

£35.90

£29.92 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

Tube insulation supplied by Trianco under part number SP221843. It is fitted to the tube assembly on Trianco 9, 11 and 12KW electric boilers, where it limits heat loss from the tube and protects surrounding components from radiated heat.

Signs this part needs replacing

  • Insulation is cracked, split or crumbling along the length of the tube
  • Discolouration or scorching that indicates sustained heat exposure
  • Insulation has become brittle and no longer holds its position on the tube
  • Heat marking on adjacent components or casing near the tube run

Before you order

  • Confirm the boiler model and output rating against the fit list above
  • Check the existing insulation on the tube to verify the part matches what is fitted
  • Have the boiler isolated from the electrical supply before any inspection or work
  • Quote part number SP221843 or 221843 when ordering

Not sure which part?

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