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Potterton Venturi Honeywell VMU100 5132216

Potterton

Potterton Venturi Honeywell VMU100 5132216

Venturi assembly for Potterton Commercial Sirius FS and Wh boilers, referenced Honeywell VMU100.

Manufacturer part no.
5132216
Showing prices

£96.97

£80.81 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 Potterton Venturi, catalogued under Honeywell VMU100, is a combustion air and gas metering component used on Potterton Commercial Sirius boilers. It sits within the appliance's air/gas circuit, where the venturi effect is used to draw and proportion the incoming gas and air supply. This part is identified by Potterton part number 5132216.

Signs this part needs replacing

  • The boiler locks out repeatedly or fails to establish a stable firing sequence.
  • Combustion readings drift outside the normal tolerance for the appliance.
  • The flame is weak, unstable or uneven during operation.
  • The appliance will not fire at all despite the fan and ignition sequence running.

Before you order

  • Confirm the appliance model against the Sirius FS 90-105, Wh110 and Wh90 fitment list.
  • Check the existing venturi is marked Honeywell VMU100 and matches the part number 5132216.
  • Verify the fault lies with the venturi rather than the fan, air pressure switch or gas valve before replacing.
  • Confirm access and any gaskets or seals needed at the venturi joint, as these are not listed with this part.

Not sure which part?

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