Sime
Sime Main Heat Exchanger Door 6278857
Main heat exchanger door for the Sime Murelle HE 50 R M MET boiler, part number 6278857.
At a glance
- Part type: main heat exchanger door
- Appliance family: Sime Murelle HE 50 R M MET
£74.35
£61.96 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 main heat exchanger door is a manufacturer-supplied closure plate for the heat exchanger on Sime Murelle HE 50 R M MET boilers. It seals the heat exchanger body, retaining the combustion and water circuit boundary at that face. The door is listed under Sime part number 6278857.
Signs this part needs replacing
- Water weeping or tracking from the heat exchanger door face
- Visible corrosion, pitting or distortion on the door plate
- Staining or scale deposits around the door joint
- Unexplained pressure loss on the heating circuit
- Seal face damage found when the door is removed for inspection
Before you order
- Confirm the boiler model is the Sime Murelle HE 50 R M MET
- Check the existing door against part number 6278857
- Inspect the sealing face and any gasket or seal, as these may need separate attention
- Verify the door is the correct item for the heat exchanger variant fitted to the appliance
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME MURELLE HE 50 R M MET - 8111201 | — | — | — | |
| SIME SIME MURELLE HE 50 R M MET | — | — | — |
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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