Johnson & Starley
Johnson & Starley Draught Diverter B500-0380000
Draught diverter for Johnson & Starley JB40-50 boilers, part number B500-0380000.
At a glance
- Part type: draught diverter
- Also known as 1691153
£123.65
£103.04 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 draught diverter is a flue component fitted to Johnson & Starley JB40-50 boilers. It sits at the flue outlet and stabilises the draught through the appliance, allowing combustion products to be carried away while preventing down-draught from disturbing the burner flame. It is supplied under part number B500-0380000.
Signs this part needs replacing
- Visible corrosion, cracking or distortion of the diverter body
- Soot deposits or staining around the diverter or flue outlet
- Persistent spillage of combustion products at the diverter
- Unstable flame or repeated pilot outage linked to poor flue draught
- Condensation or water tracking from the diverter area
Before you order
- Check the appliance rating plate to confirm the boiler model is JB40-50
- Confirm the existing part number matches B500-0380000 before ordering
- Inspect the flue and diverter seating for damage that may also need attention
- Flue and combustion components should be fitted and commissioned by a competent heating engineer
Compliance
| Alternative numbers | 1691153 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| JOHNSON & STARLEY JOHNSON AND STARLEY JB40-50 | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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