Ferroli
Ferroli Heat Exchanger 3980H850
Heat exchanger, part 3980H850, for Ferroli Bluehelix Hitech RRT 24C and 28C boilers.
At a glance
- Also known as 3510335
£241.21
£201.01 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 3980H850 is a heat exchanger manufactured by Ferroli for use in the Bluehelix Hitech RRT range of gas boilers. It transfers heat from the combustion circuit into the appliance water circuit, and is a serviceable component within the boiler. It is listed by Ferroli under part number 3980H850.
Signs this part needs replacing
- Hot water temperature that fluctuates or runs cool despite the boiler firing
- Kettling, banging or gurgling noises from the heat exchanger during operation
- Water weeping or staining around the heat exchanger body or its connections
- Reduced heating or hot water performance that persists after the system has been cleaned and bled
- Repeated lockouts or temperature-related faults traced to the heat exchanger circuit
Before you order
- Confirm the appliance model and GC number against the manufacturer's parts list
- Check the existing heat exchanger part number before removal where it is still legible
- Inspect seals, washers and connections, as these are not supplied with the heat exchanger unless stated
- Confirm the system has been cleaned and inhibited, as debris is a common cause of heat exchanger failure
Compliance
| Alternative numbers | FER3980H850, 3510335 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI BLUEHELIX HITECH RRT 24C | 47-267-74 | 47-267-74 | — | — |
| FERROLI BLUEHELIX HITECH RRT 28C | 47-267-75 | 47-267-75 | — | — |
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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