FLUE SYSTEM INSTALLATION - WOOD
Note These instruction apply to 225mm dia ue pipe systems as tested to
AS/NZS 2918:2001
1. Either locate the appliance in position or by measuring at the ceiling mark the ue pipe centre
position. Check that the outer casing is unobstructed through the attic space or roof area.
2. Spike the centre with a nail. Transfer this position to the next surface above. Plumb bob/laser.
3. Cut out the ceiling penetration hole – square or rectangle – short axis equals outer casing
diameter plus 50mm, long axis as required. See Table 4 . Perform the same at the roof
penetration.
4.
requirement at roof penetration see NZ Building Code E2 Acceptable Solution (from 01/07/05).
5. Install the outer casing so that :-
(i) lower end is ush with the underside of the ceiling material and
(ii) with the addition of metal “L” brackets, afx to the outer casing at 90 degrees secure the
outer casing centrally to the ceiling and roof nogs. Alternatively substitute the “L” brackets for
25mm thick non heat sensitive packers. Secure the outer casing through the packers with hori-
zontal xings to the nogs. Refer to the General Instruction for termination height. The option of
outer casing slips to be taken into account.
6. Flash the outer casing to the roof material with the appropriate approved ashing.
7. If using an outer/inner casing combination, now install the inner casing ensuring it extends a
minimum 200mm above the high side of the roof penetration. If not using a combination see
‘11’ below.
8. Refer to Firebox Installation, points 1 & 2.
9. Prepare the ceiling plate and place upside down over the ue spigot.
10.Install the ue pipes by preferred method – either up or down the outer casing. Afx each
length per the notes in General Instructions (above). Extend the ue pipe above the outer
casing to suit the casing cover/cowl assembly.
11. If the inner casing has not been installed, install now. Refer to 7 above for minimum height.
12.Install the cowl assembly, i.e. Top spacer, casing cover and cowl.
13.Position and secure the ceiling plate with the screws and spacers.
14.Wipe the ue pipe to remove nger marks.
15. Refer to Firebox Installation, points 3 & 4.
GENERAL INSTRUCTIONS FOR FLUE SYSTEM
▪ Flue pipe installed crimp/narrow end down
▪ Outer casings installed crimped/narrow end up. (Critical when exposed above the roof)
▪ Inner casings - direction not critical
▪ Flue pipes - seal all joints including rebox spigot.
- x with a minimum of 3 stainless steel rivets
▪ Flue pipe spacers - afx to ue pipe
▪ Flue system termination point - Refer to AS/NZS 2918:2001 4.9.1, see Fig. 9.
▪ Façade or Chase systems - same rule applies as above.
▪ Roof penetration and ashing method refer to NZ Building Code E2.(From 01/07/05)
1.FS.1E
