Potterton
Potterton Combustion Chamber / C Frame 7660874
Combustion chamber / C frame rated at 70kW, manufactured by Potterton Commercial for Sirius 2 and Sirius 3 boilers.
At a glance
- Part type: combustion chamber / C frame
£166.80
£139.00 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 COMBUSTION CHAMBER / C FRAME (70KW) is a Potterton Commercial boiler component, manufactured as part number 7660874. It forms the combustion chamber housing and C frame assembly for the 70kW output variant of the Potterton Commercial Sirius range. Its function is to enclose the combustion zone and provide the structural frame onto which the chamber and its sealing surfaces locate.
Signs this part needs replacing
- Visible corrosion, pitting or scaling on the chamber housing or frame surfaces
- Cracking, distortion or heat-related deformation of the chamber or C frame
- Deteriorated sealing faces causing poor sealing of the combustion chamber
- Evidence of flue gas leakage around the chamber joints or frame
- Damage found during servicing when the chamber is opened and inspected
Before you order
- Confirm the boiler model and its rated output match the 70kW variant listed here
- Verify the existing part number is 7660874 before ordering
- Inspect the chamber sealing faces and any associated gaskets or seals, as these may need attention at the same time
- Work on the combustion chamber must be carried out by a competent, registered gas engineer
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| 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 WH70 | — | — | — |
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 technical questions yet for this part.
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