Baxi
Baxi Inner Flue Support Bracket 5109889
Inner flue support bracket for Baxi and Potterton combi boilers, part 5109889, GC number H02-523.
At a glance
- Part type: Brackets and clamps
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Showing prices
£8.04
£6.70 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 Baxi 5109889 is an inner flue support bracket used in Baxi and Potterton combi boilers. It holds and centralises the inner flue duct within the flue assembly, keeping the duct correctly positioned and supported through the appliance casing. The bracket sits within the Brackets, Clamps & Mountings group of spare parts.
Signs this part needs replacing
- The inner flue duct moves or rattles when the appliance is running
- The bracket shows corrosion, cracking or distortion
- The flue duct no longer sits centrally within the flue assembly
- A loose or missing flue support is noted during an annual service
- Vibration is transmitted through the flue terminal or appliance casing
Before you order
- Check the GC number and serial number on the appliance data badge against the compatibility list.
- Confirm the appliance model matches one of the Baxi or Potterton combi variants listed.
- Check whether a flue seal or gasket is required at the same time.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Brackets, Clamps & Mountings |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 5109889 |
|---|---|
| GC number | H02-523 |
| Commodity code | 8403 90 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI COMBI 105HE | 47-075-18 | 47-075-18 | — | — |
| BAXI COMBI INSTANT 105HE | 47-075-19 | 47-075-19 | — | — |
| BAXI COMBI INSTANT 80HE | 47-075-17 | 47-075-17 | — | — |
| POTTERTON GOLD COMBI ErP 24 - SERIAL No. ENDING AC | 47-393-43 | 47-393-43 | — | — |
| POTTERTON GOLD COMBI ErP 28 - SERIAL No. ENDING AC | 47-393-44 | 47-393-44 | — | — |
| POTTERTON GOLD COMBI ErP 28 LPG - SERIAL No. ENDING AC | 47-393-45 | 47-393-45 | — | — |
| POTTERTON GOLD COMBI ErP 33 - SERIAL No. ENDING AC | 47-393-46 | 47-393-46 | — | — |
| POTTERTON POTTERTON PROMAX COMBI 24 HE PLUS A | — | — | — | |
| POTTERTON POTTERTON PROMAX COMBI 28 HE PLUS A (AFTER SERIAL NO. AWA 0919) | — | — | — | |
| POTTERTON POTTERTON PROMAX COMBI 28 HE PLUS A (BEFORE SERIAL NO. AWA 0919) | — | — | — |
Showing 10 of 21 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
BAXI appliance manual — COMBI 105HE (GC 47-075-18)
manualmanualBAXI appliance manual — COMBI INSTANT 105HE (GC 47-075-19), COMBI INSTANT 80HE (GC 47-075-17)
manualmanualPOTTERTON appliance manual — GOLD COMBI ErP 24 - SERIAL No. ENDING AC (GC 47-393-43), GOLD COMBI ErP 28 - SERIAL No. ENDING AC (GC 47-393-44), GOLD COMBI ErP 28 LPG - SERIAL No. ENDING AC (GC 47-393-45), GOLD COMBI ErP 33 - SERIAL No. ENDING AC (GC 47-393-46)
manualmanualPOTTERTON appliance manual — PROMAX COMBI PLUS 24 HE A (GC 47-393-21), PROMAX COMBI PLUS 28 HE A (AFTER SERIAL NO. AWA 0919) (GC 47-393-22), PROMAX COMBI PLUS 28 HE A (BEFORE SERIAL NO. AWA 0919) (GC 47-393-22), PROMAX COMBI PLUS 33 HE A (AFTER SERIAL NO. ATY 1112) (GC 47-393-23), PROMAX COMBI PLUS 33 HE A (BEFORE SERIAL NO. ATY 1112) (GC 47-393-23)
manualmanualPOTTERTON appliance manual — TITANIUM COMBI 24 ErP - SERIAL No. ENDING AC (GC 47-393-50), TITANIUM COMBI 28 ErP - SERIAL No. ENDING AC (GC 47-393-51), TITANIUM COMBI 33 ErP - SERIAL No. ENDING AC (GC 47-393-52), TITANIUM COMBI 40 ErP - SERIAL No. ENDING AC (GC 47-393-53)
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