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Viessmann Burner Door 7831348

Viessmann

Viessmann Burner Door 7831348

Viessmann burner door, part number 7831348, a burner mounting flange assembly for Vitodens 100W Compact condensing boilers.

At a glance

  • Also known as 2321790
Manufacturer part no.
7831348
Showing prices

£177.89

£148.24 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

The Viessmann burner door, part number 7831348, is the burner mounting flange assembly fitted to Vitodens 100W Compact condensing boilers. It closes and locates the burner at the combustion chamber face, keeping the combustion path sealed and correctly aligned. It is listed by Viessmann as the burner mounting flange assembly for B2HB 45-57 applications.

Signs this part needs replacing

  • Heat damage, distortion or corrosion on the door or flange sealing face
  • Sooting or staining around the burner door joint after servicing
  • Traces of flue gas leakage or combustion odour at the burner face
  • The burner door no longer sitting squarely or sealing correctly on reassembly
  • Cracking or material breakdown in the door or flange body

Before you order

  • Confirm the boiler model and serial number against the fit list
  • Match part number 7831348 against the marking on the existing component
  • Check whether the burner door gasket or seal is ordered separately
  • Confirm the appliance kW rating before ordering

Not sure which part?

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