Potterton
Potterton Conventional Exchanger FS70 5142374
Conventional 70 kW heat exchanger for Potterton Commercial Sirius 2 and Sirius 3 boilers.
£1,542.00
£1,285.00 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 Potterton Conventional Exchanger (FS70) is a heat exchanger for Potterton Commercial Sirius 2 and Sirius 3 boilers. It transfers heat from the combustion gases into the system water and is rated at 70 kW. It is supplied under part number 5142374.
Signs this part needs replacing
- Water weeping or visible corrosion at the exchanger body or its joints
- Kettling, banging or rumbling noises during operation
- Overheating, repeated high-limit trips or lockouts
- Reduced heating output or slow recovery of system temperature
- Combustion readings drifting outside the appliance's specified range
Before you order
- Confirm the appliance model and variant against the fitment list; FS and WH designations are not interchangeable.
- Check the rating on the existing exchanger or the boiler data plate matches 70 kW.
- On Sirius 2 Wh50, Wh60 and Wh70 models, this exchanger applies to appliances from April 2016.
- Isolate the gas and electrical supplies and drain the system before removal.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH50 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH60 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH70 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS70 | — | — | — |
Documents & drawings
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