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Viessmann Expansion Vessel 7826206

Viessmann

Viessmann Expansion Vessel 7826206

Expansion vessel for Viessmann Vitodens WB1A combi and system boilers, part number 7826206.

At a glance

  • Also known as 2320082
Manufacturer part no.
7826206
Showing prices

£93.66

£78.05 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

Expansion vessel for Viessmann Vitodens WB1A combi and system boilers. Manufactured by Viessmann, part number 7826206. It absorbs the expansion of water as it heats, maintaining system pressure.

Signs this part needs replacing

  • Boiler pressure rises excessively when heating is on
  • Pressure relief valve discharges water frequently
  • Boiler loses pressure and requires regular topping up
  • Water visible from the expansion vessel connection or Schrader valve
  • System pressure fluctuates widely between hot and cold

Before you order

  • Check your boiler's model and serial number against the fit list
  • Confirm the part number 7826206 matches your existing component
  • Verify the date of manufacture is on or after 18.08.2006
  • Consult the manufacturer's parts list if unsure

Not sure which part?

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