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Vaillant Insulation 1500L Bottom 0020174778

Vaillant

Vaillant Insulation 1500L Bottom 0020174778

Bottom insulation for Vaillant allSTOR VPS 1500/3-5 and VPS 1500/3-7 cylinders.

At a glance

  • Appliance family: allSTOR VPS 1500/3-5 and VPS 1500/3-7
  • Also known as 1386234
Manufacturer part no.
0020174778
Showing prices

£268.10

£223.42 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 Vaillant 0020174778 is a bottom insulation component for allSTOR VPS 1500/3-5 and VPS 1500/3-7 cylinders. It is manufactured by Vaillant and fits the lower section of the cylinder to help reduce heat loss. This insulation part is listed for use with the specified allSTOR models.

Signs this part needs replacing

  • Visible cracks, splits or crumbling in the insulation material.
  • Water staining, dampness or softness in the lower insulation section.
  • Reduced cylinder heat retention or increased standing heat loss.
  • Condensation or damp patches around the base of the cylinder.
  • Physical damage or missing sections of the bottom insulation.

Before you order

  • Confirm the cylinder model is Vaillant VPS 1500/3-5 or VPS 1500/3-7.
  • Check the existing insulation position and part number 0020174778.
  • Verify the part is the bottom insulation for the 1500L allSTOR cylinder.
  • Inspect the cylinder base for any additional damage before fitting.

Not sure which part?

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