Glow-worm
Glow-worm Heat Exchanger Door/Mixing Arm Gasket 0020018821
Heat exchanger door and mixing arm gasket for the Glow-worm Xtramax HE gas boiler, part number 0020018821.
At a glance
- Appliance family: Xtramax HE
- Also known as 1337623
£9.53
£7.94 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 Glow-worm 0020018821 is a heat exchanger door and mixing arm gasket. It seals the joint at the heat exchanger door and mixing arm on the Xtramax HE gas boiler. The gasket is a service item that is renewed whenever that joint is disturbed.
Signs this part needs replacing
- Water or condensate weeping at the heat exchanger door joint
- Staining or corrosion around the mixing arm area
- Gasket hardened, flattened or brittle on inspection
- Gasket split, torn or deformed
- Joint disturbed during heat exchanger work, requiring a new seal
Before you order
- Confirm the appliance is a Glow-worm Xtramax HE
- Check the part number 0020018821 against the old gasket or the manufacturer's parts list
- Inspect the heat exchanger door and mixing arm faces for damage before refitting
Compliance
| Alternative numbers | 1337623 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM XTRAMAX HE | 47-047-29 | 47-047-29 | — | — |
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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