Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Vaillant Draft Diverter 115188

Vaillant

Vaillant Draft Diverter 115188

Draft diverter for Vaillant MAG Mini 11-0/0 XI and XZ appliances, part number 115188.

At a glance

  • Part type: draft diverter
  • Appliance family: MAG Mini 11-0/0 XI and XZ
  • Also known as 1387232
Manufacturer part no.
115188
Showing prices

£46.48

£38.73 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 Vaillant draft diverter, part number 115188, is a flue component fitted to Vaillant MAG Mini 11-0/0 XI and XZ appliances. It sits at the flue outlet and manages the draught of combustion gases leaving the appliance. It is a serviceable part for these water heaters.

Signs this part needs replacing

  • Visible corrosion, cracking or distortion of the diverter body
  • Soot or scorching around the flue outlet
  • Combustion gas spillage or an unstable draught at the appliance
  • Water or condensate collecting around the diverter
  • Repeated flue-related safety shutdowns or lockouts

Before you order

  • Confirm the appliance model from the data badge — MAG Mini 11-0/0 XI or XZ
  • Check the existing part number 115188 on the component being replaced
  • Verify the part against the manufacturer's parts list for your appliance
  • Flue component work should be carried out by a competent heating engineer

Not sure which part?

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