
Ferroli
Ferroli O-Ring 39837700
Ferroli 39837700 O-rings supplied in a pack of 20 for sealing DHW heat exchanger connections on compatible Ferroli gas boilers.
At a glance
- Also known as 1211189
£9.65
£8.04 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 39837700 is an O-ring supplied in a pack of 20. It seals the domestic hot water (DHW) heat exchanger connections on Ferroli gas boilers, preventing water loss at the joint. Seals of this type are consumable items and are renewed whenever the heat exchanger connection is disturbed.
Signs this part needs replacing
- Water weeping or dripping from the DHW heat exchanger connections
- Staining, corrosion or scale build-up around the joint
- O-ring hardened, flattened, cracked or perished
- Leak returns after the connection has been re-tightened
- Water loss or pressure drop traced to the heat exchanger joint
Before you order
- Confirm your boiler model against the fitment list above
- Check that the part number 39837700 matches the existing component or the manufacturer's parts list
- Inspect the mating surfaces for damage before fitting new seals
- Note the pack contains 20 O-rings, so check how many joints need resealing
Compliance
| Alternative numbers | 1211189 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI DOMICONDENS F24 | 47-267-50 | 47-267-50 | — | — |
| FERROLI DOMICONDENS F28 | 47-267-76 | 47-267-76 | — | — |
| FERROLI DOMICONDENS HE 26C - 30K0949000 | 47-267-54 | 47-267-54 | — | — |
| FERROLI DOMIPROJECT F18 - 30K0935000 (11/10/2010) | — | — | — | |
| FERROLI DOMIPROJECT F32D - 30K1032000 (12/09/2011) | — | — | — | |
| FERROLI FERCONDENS 25 HE - 30K1239000 (01/05/2014) | — | — | — | |
| FERROLI FERROLI DOMICOMPACT F24D | — | — | — | |
| FERROLI FERROLI DOMICOMPACT F30D | — | — | — | |
| FERROLI FERROLI DOMICONDENS 24 | — | — | — | |
| FERROLI FERROLI DOMICONDENS 28 | — | — | — |
Showing 10 of 12 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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
