Ferroli
Ferroli Heat Exchanger 39846930
Ferroli 39846930 heat exchanger for Modena HE and T-ONE HE boilers.
At a glance
- Also known as 3510275
£668.33
£556.94 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 Ferroli 39846930 is a heat exchanger used in Ferroli Modena HE and T-ONE HE condensing boilers. It transfers heat from the combustion gases to the domestic heating and hot water circuit. This is the main heat exchanger assembly for the listed appliance variants.
Signs this part needs replacing
- Water weeping or dripping from the heat exchanger body or its connections
- Persistent kettling, banging or gurgling from the appliance during operation
- Visible corrosion, scale build-up or distortion on the heat exchanger
- Repeated loss of system pressure with no external leak found elsewhere
- Reduced heating or hot water performance that does not improve after servicing other components
Before you order
- Confirm the boiler model and GC number against the fitment list above
- Check the part number on the existing component matches 39846930
- Verify the appliance variant, as Modena HE and T-ONE HE models use different control configurations
- Inspect the seals and gaskets on the existing assembly and replace any that are perished or compressed
Compliance
| Alternative numbers | FER39846930, 3510275 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI FERROLI MODENA HE 18S | — | — | — | |
| FERROLI FERROLI MODENA HE 25S | — | — | — | |
| FERROLI MODENA 18S HE - 30K1141000 (01/07/2012) | 41-267-40 | 41-267-40 | — | — |
| FERROLI MODENA 25S HE - 30K1141000 (01/07/2012) | 41-267-41 | 41-267-41 | — | — |
| FERROLI T-ONE 18S HE | 41-267-43 | 41-267-43 | — | — |
| FERROLI T-ONE 25S HE | 41-267-44 | 41-267-44 | — | — |
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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