Ferroli
Ferroli Expansion Vessel 39846250
Ferroli 10 litre expansion vessel, part 39846250, for Lamborghini Extrema, Modena HE, T-ONE and Twist PRO gas boilers.
At a glance
- Also known as 3510267
£165.47
£137.89 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 39846250 is a 10 litre expansion vessel used in Ferroli gas boilers. It absorbs the volume change of the heating water as it heats and cools, holding system pressure steady and protecting components from excessive pressure swings. It is fitted across the Lamborghini Extrema, Modena HE, T-ONE and Twist PRO ranges.
Signs this part needs replacing
- Boiler pressure falls repeatedly and needs topping up
- System pressure rises sharply once the boiler heats up
- Water weeping from the vessel's air valve when the cap is removed
- Vessel feels heavy or sounds full of water when tapped
- Visible corrosion, staining or damp patches around the vessel
Before you order
- Confirm your boiler model and product code against the fit list above
- Check the existing vessel's capacity and connection arrangement match the 10 litre unit
- Verify system pressure and vessel charge pressure before condemning the part
- Check for leaks elsewhere in the heating circuit that could also cause pressure loss
Compliance
| Alternative numbers | FER39846250, 3510267 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI FERROLI LAMBORGHINI EXTREMA 38C | — | — | — | |
| FERROLI FERROLI MODENA HE 32C | — | — | — | |
| FERROLI FERROLI MODENA HE 32S | — | — | — | |
| FERROLI FERROLI T-ONE 30C | — | — | — | |
| FERROLI LAMBORGHINI EXTREMA 38C - 30K0798000 (18/05/2009) | 47-267-49 | 47-267-49 | — | — |
| FERROLI MODENA 30C HE NG | 47-267-56 | 47-267-56 | — | — |
| FERROLI MODENA 32C HE LPG - 30K1045001 (09/07/2012) | 47-267-55 | 47-267-55 | — | — |
| FERROLI MODENA 32C HE LPG - 30K1045003 (01/12/2013) | 47-267-55 | 47-267-55 | — | — |
| FERROLI MODENA 32C HE NG - 30K1045001 (09/07/2012) | 47-267-55 | 47-267-55 | — | — |
| FERROLI MODENA 32C HE NG - 30K1045003 (01/12/2013) | 47-267-55 | 47-267-55 | — | — |
Showing 10 of 15 compatible appliances.
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.
FERROLI appliance manual — LAMBORGHINI EXTREMA 38C - 30K0798000 (18/05/2009) (GC 47-267-49)
manualmanualFERROLI appliance manual — MODENA 30C HE NG (GC 47-267-56), MODENA 32C HE LPG - 30K1045001 (09/07/2012) (GC 47-267-55), MODENA 32C HE LPG - 30K1045003 (01/12/2013) (GC 47-267-55), MODENA 32C HE NG - 30K1045001 (09/07/2012) (GC 47-267-55), MODENA 32C HE NG - 30K1045003 (01/12/2013) (GC 47-267-55)
manualmanualFERROLI appliance manual — MODENA 32S HE - 30K1141000 (01/07/2012) (GC 41-267-42)
manualmanualFERROLI appliance manual — T-ONE 30C HE (GC 47-267-60)
manualmanualFERROLI appliance manual — T-ONE 32S HE (GC 41-267-45)
manualNo technical questions yet for this part.
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