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Sime Main Heat Exchanger Door 6278852

Sime

Sime Main Heat Exchanger Door 6278852

Sime 6278852 main heat exchanger door for Murelle and Planet DEWY gas boilers.

At a glance

  • Also known as 2042052
Manufacturer part no.
6278852
Showing prices

£68.81

£57.34 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 6278852 is a main heat exchanger door used on Sime gas boilers. It closes the main heat exchanger housing on the listed Murelle and Planet DEWY appliance families, sealing the joint between the exchanger body and the combustion side of the appliance.

Signs this part needs replacing

  • Water weeping or staining around the heat exchanger door joint
  • Corrosion, pitting or scale on the door face
  • Soot or combustion deposits tracking past the door seal
  • Distortion or warping of the door preventing it seating flat
  • Repeated seal failure at the same joint

Before you order

  • Confirm your appliance model and code against the manufacturer's parts list
  • Check whether the door gasket or seal is supplied separately for your model
  • Inspect the mating face on the heat exchanger for corrosion or damage before refitting
  • Verify the number 6278852 matches the marking on the existing door

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.