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Potterton Combustion Chamber Door Insulation COM17003630

Potterton

Potterton Combustion Chamber Door Insulation COM17003630

Internal combustion chamber door insulation for Potterton Commercial NXR3 boilers.

Manufacturer part no.
COM17003630
Showing prices

£45.60

£38.00 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 COMBUSTION CHAMBER DOOR INSULATION (INTERNAL) is a Potterton Commercial spare, listed by the manufacturer under part number COM17003630. It sits on the inner face of the combustion chamber door on NXR3 commercial boilers, where it provides the thermal barrier between the combustion chamber and the door itself. It is also referenced as the NXR3 combustion insulation, internal.

Signs this part needs replacing

  • Visible cracking, crumbling or breakdown of the insulation surface
  • Insulation detached from the combustion chamber door
  • Discolouration or heat damage extending beyond the normal face of the material
  • Combustion readings that cannot be brought into specification after servicing

Before you order

  • Confirm the boiler is an NXR3 and note the number of sections fitted
  • Check the existing insulation on the door for damage before removal
  • Have the combustion chamber door gasket and fixings to hand if the door is being disturbed
  • Verify the part number COM17003630 against the appliance documentation

Not sure which part?

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