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Viessmann Gasket Set Plate Heat Exchanger 7828747

Viessmann

Viessmann Gasket Set Plate Heat Exchanger 7828747

Viessmann 7828747 gasket set for the plate heat exchanger on Vitodens 100-W boilers.

At a glance

  • Appliance family: Vitodens 100-W
  • Also known as 2321000
Manufacturer part no.
7828747
Showing prices

£39.17

£32.64 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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

This is a gasket set for the plate heat exchanger (PWT) on Viessmann Vitodens 100-W boilers. Supplied under part number 7828747, it provides the sealing components required when the plate heat exchanger is removed and refitted or replaced. It is a service part for the domestic hot water side of the appliance.

Signs this part needs replacing

  • Water weeping or dripping from the plate heat exchanger joints
  • Damp staining, corrosion or scale deposits around the plate heat exchanger connections
  • A gasket that is flattened, hardened or split after the plate heat exchanger has been disturbed
  • Recurring pressure loss on the domestic hot water side with no other obvious cause

Before you order

  • Confirm the boiler model and serial number against the fits list
  • Check the appliance GC number matches before ordering
  • Confirm the plate heat exchanger itself is serviceable and that the seals, not the plates, are at fault
  • Have the boiler isolated and drained in line with the manufacturer's instructions before work begins

Not sure which part?

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