Genuine Brivis replacement flue fan outlet joiner, 100mm, part number 80065087. It connects the combustion (flue) fan outlet to the standard 100mm flue pipe on Brivis gas ducted heaters.
Why Replace It
The joiner sits on the hot flue fan outlet, and heat ages it over time. A cracked or loose joiner can let flue gases and condensate leak inside the heater cabinet, causing rust and poor venting. A new joiner restores a tight, reliable seal.
Suits
- Brivis (and Rinnai-built Brivis) gas ducted heaters with a standard 100mm flue
Check before ordering: measure your flue pipe. This joiner is for 100mm flues. High-efficiency (HE) heaters with a reduced 65mm flue need the 65mm joiner (PN B021341).
Colour may vary (black or white). Same part.
Specifications
| Brand | Brivis (Rinnai) |
| Part number | 80065087 |
| Flue size | 100mm |
| Fits | Combustion / flue fan outlet to flue pipe |
Installation
This is a gas appliance flue part. It must be installed by a licensed gasfitter, and the heater should be checked for correct venting after fitting.












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