Navien
Navien Packing Exhaust Duct 20040241A
Navien exhaust duct packing for LCB 700 combi, regular and system boilers.
At a glance
- Part type: packing for the exhaust duct
- Appliance family: LCB 700
£5.94
£4.95 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 Navien exhaust duct packing is a sealing component used within the flue and exhaust duct assembly of Navien LCB 700 boilers. It seals the joint between duct sections to contain flue gases and prevent condensate escape. It is listed by Navien under part number 20040241A.
Signs this part needs replacing
- Visible cracking, hardening or flattening of the packing material
- Condensate weeping or staining around the exhaust duct joint
- Soot marks or discolouration at the duct connection
- Flue gas odour or draughts detected at the duct joint
- The packing is missing or has been disturbed during duct work
Before you order
- Confirm the boiler is a Navien LCB 700 and note the model variant and output
- Check the serial number against the appliance data plate to confirm the correct build
- Inspect the exhaust duct assembly to confirm the packing is the component required
- Confirm how many packings the duct joint requires before ordering
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — |
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Documents & drawings
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