Baxi
Baxi Air Vent 7815457
Baxi air vent, part number 7815457, for System 2, Combi 2 and LPG Combi 2 appliances.
At a glance
- Also known as 1794992
£54.76
£45.63 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
The Baxi 7815457 is an air vent used in Baxi System 2, Combi 2 and LPG Combi 2 boiler ranges. It allows trapped air to be released from the appliance's water circuit, helping to maintain stable circulation and reliable operation. It is a serviceable component intended for fitment by a competent heating engineer.
Signs this part needs replacing
- Persistent air noise or gurgling from the boiler during operation
- Repeated air locking in the heating circuit after bleeding radiators
- Water weeping or staining around the vent body
- Pressure gauge readings that fluctuate or drop without an obvious leak elsewhere
- Corrosion or scale visible on the vent assembly
Before you order
- Confirm the appliance model and GC number against the fitment list above
- Check the existing vent for the part number 7815457 where it is marked
- Verify whether your appliance uses a front facing analogue pressure gauge or an internal FIT pressure gauge variant
- Isolate the appliance and drain down as required before fitting
Compliance
| Alternative numbers | 1794992 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 424 COMBI 2 | 47-077-51 | 47-077-51 | — | — |
| BAXI 424 COMBI 2 LPG | 47-077-53 | 47-077-53 | — | — |
| BAXI 424 ERP COMBI 2.1 | 47-077-74 | 47-077-74 | — | — |
| BAXI 424 LPG COMBI 2 | 47-077-53 | 47-077-53 | — | — |
| BAXI 430 COMBI 2 | 47-077-52 | 47-077-52 | — | — |
| BAXI 430 COMBI 2 LPG | 47-077-54 | 47-077-54 | — | — |
| BAXI 430 ERP COMBI 2.1 | 47-077-75 | 47-077-75 | — | — |
| BAXI 430 LPG COMBI 2 | 47-077-54 | 47-077-54 | — | — |
| BAXI 436 ERP COMBI 2.1 | 47-077-76 | 47-077-76 | — | — |
| BAXI 615 SYSTEM 2 - FRONT FACING ANALOGUE PRESSURE GAUGE | 41-884-01 | 41-884-01 | — | — |
Showing 10 of 33 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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