Flueing - Rinnai Neo Series Installation Manual

Flueing options
The below options detail the most common types of flue installations. If you have an
installation that varies from those below, please contact Rinnai.
Minimum flue length - 3.6 m: The minimum flue length is 3.6 m or three lengths of flue. This is required to ensure
adequate draw and to prevent spill-back of combustion products, which can cause the safety sensors to shut
down the fire. The minimum flue length before any bend or offset is 1.2 m (or one length of flue).
Maximum flue length - 8 m: Rinnai recommend a maximum flue length of 8 m with a maximum of two 45 ° bends.
Difference in flue lengths
For our inbuilt range flue lengths are 1.2 m. For the freestanding flues, those that are powder coated galaxy black
and brushed stainless steel, flue lengths are 1 . An easy way to remember is unpainted 1.2 m and painted 1 m.
32 | Neo RIB2312 installation guide: 12148-D 04-19
Masonry with flexiliner flue
For installations into a masonry cavity.
Minimum flue length is 3.6m.
Inbuilt mock chimney direct and offset
For installations into a combustible opening
with a zero clearance box, where the flue runs
vertically in-wall.
Inbuilt mock chimney offset wall penetration
For installations into a combustible opening
with a zero clearance box. Flue runs in-wall,
then penetrates the building before terminating
vertically.
Typically used in multi-storey dwellings where
the fire is installed on the ground floor.
Freestanding vertical
Straight vertical or with an offset in the roof
space.
Freestanding with offset wall penetration
Flue runs vertically, penetrates the building
before terminating vertically.
Typically used in multi-storey dwellings where
the fire is installed on the ground floor.
Flue components
- Flexiliner flue kit (R1756) 3.6 m
If flueing exceeds 3.6 m add:
- Flexiliner flue extension (R1761)
A: Flue component
- Zero clearance flue kit (R1762Z)
B: Flue components
- Zero clearance flue kit (R1762Z)
- 45 ° bend kit x 2 (R1764)
If flueing exceeds 3.6 m add the
galvanised or stainless steel flue
extension (R1763Z, R1763SS).
Flue components
- Zero clearance flue kit (R1762Z)
- Wall penetration kit (R1766)
If flueing exceeds 3.6 m add the
galvanised or stainless steel flue
extension (R1763Z, R1763SS).
Flue components
- FS galaxy black flue kit (R1762GL)
- FS brushed SS flue kit (R1762BS)
To offset the flue in the roof use
45 ° bends (R1764 x 2)
Flue components galaxy black
- FS galaxy black flue kit (R1762GL)
- Wall penetration kit blk. (R1766GL)
Flue components brushed SS
- FS brushed SS flue kit (R1762BS)
- Wall penetration kit galv. (R1766)