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Potterton Combustion Chamber Door Insulation External COM17072173

Potterton

Potterton Combustion Chamber Door Insulation External COM17072173

External combustion chamber door insulation for Potterton Commercial NXR3 boilers.

Manufacturer part no.
COM17072173
Showing prices

£416.40

£347.00 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 Potterton combustion chamber door insulation (external) is a heat-insulating panel fitted to the outer face of the combustion chamber door on Potterton Commercial appliances. It forms part of the boiler's thermal barrier, limiting heat transfer away from the combustion chamber and protecting the surrounding casing. This item is supplied as a standalone insulation component under part number COM17072173.

Signs this part needs replacing

  • Visible cracking, crumbling or breakdown of the insulation surface
  • Discolouration or charring indicating prolonged heat exposure
  • The insulation panel becoming detached, loose or misaligned on the door
  • Loss of thickness or compaction reducing the thermal barrier
  • Heat damage or staining on adjacent casing components near the door

Before you order

  • Confirm the appliance is a Potterton Commercial NXR3 and note the section count
  • Check the existing insulation is the external door component, not an internal chamber panel
  • Verify the part number COM17072173 against the markings or documentation for the appliance
  • Inspect the door and fixings for damage before refitting new insulation

Not sure which part?

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