Sime
Sime Main Heat Exchanger Body 6278915
Main heat exchanger body for Sime Murelle HE 110 R and Planet DEWY 100 BFR boilers, part number 6278915.
At a glance
- Also known as 8922120
Showing prices
£4,255.54
£3,546.28 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Sime 6278915 is a main heat exchanger body for Sime gas boilers. It transfers heat from the combustion gases to the heating and hot water circuit. It is used on Murelle HE 110 R and Planet DEWY 100 BFR models.
Signs this part needs replacing
- Water leaking from the heat exchanger body or its joints
- Repeated pressure loss requiring frequent topping up
- Corrosion, scale build-up or visible cracks on the exchanger body
- Reduced heating or hot water output
- Kettling or banging noises from the boiler
Before you order
- Confirm your boiler model and serial number against the fit list above
- Check whether your appliance is the Murelle HE 110 R or the Murelle HE 110 R M variant
- Verify the part number 6278915 on the existing component or against the manufacturer's parts list
- Heat exchanger work should be carried out by a competent heating engineer
Compliance
| Alternative numbers | 8922120 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME MURELLE HE 110 R - 8104960 | 41-283-28 | 41-283-28 | — | — |
| SIME MURELLE HE 110 R M - 8104990 | — | — | — | |
| SIME PLANET DEWY 100 BFR - 8104950 | 41-283-11 | 41-283-11 | — | — |
| SIME SIME PLANET DEWY 100 BFR | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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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Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.