Buderus
Buderus Venturi VMU300 63036091
Buderus VMU300 venturi, part number 63036091, for GB312-200, GB312-240 and GB312-280 boilers.
At a glance
- Appliance family: GB312 series
- Also known as 2241690
£177.80
£148.17 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is the Buderus VMU300 venturi, supplied under manufacturer part number 63036091. It is the gas/air mixing component used on Buderus GB312 series boilers, where it meters the gas flow drawn into the burner air stream. Correct venturi function is what holds the boiler's air/gas ratio steady across the modulation range.
Signs this part needs replacing
- Combustion readings that drift and cannot be set back within tolerance during servicing
- Unstable or weak flame signal with repeated ignition faults
- Boiler lockouts linked to air/gas ratio or fan pressure errors
- Whistling or unusual noise from the air/gas intake area
- Visible damage, blockage or debris in the venturi throat or sensing tappings
Before you order
- Confirm the boiler model and output from the appliance data badge (GB312-200, GB312-240 or GB312-280)
- Confirm the gas type and variant, as G20, G25, BE and NL versions use different fitment listings
- Check the VMU300 marking and part number 63036091 against the component being removed
- Verify the appliance index number against the fitment list before fitting
Compliance
| Barcode / EAN | 4010009943709 |
|---|---|
| Alternative numbers | 2241690 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BUDERUS GB312-200, G20 BE V2 - 7747007571 | — | — | — | |
| BUDERUS GB312-200, G20 V2 - 7747005630 | — | — | — | |
| BUDERUS GB312-200, G25 NL V2 - 7747005638 | — | — | — | |
| BUDERUS GB312-200, G25 V2 - 7747005634 | — | — | — | |
| BUDERUS GB312-240, G20 BE V2 - 7747007572 | — | — | — | |
| BUDERUS GB312-240, G20 V2 - 7747005631 | — | — | — | |
| BUDERUS GB312-240, G25 NL V2 - 7747005639 | — | — | — | |
| BUDERUS GB312-240, G25 V2 - 7747005635 | — | — | — | |
| BUDERUS GB312-280, G20 BE V2 - 7747007573 | — | — | — | |
| BUDERUS GB312-280, G20 V2 - 7747005632 | — | — | — |
Showing 10 of 12 compatible appliances.
Documents & drawings
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