3.OD.3c
crOss sEctiOn
min. 25mm clearance
25
25
min. 25mm clearance
B + recessed
Masonry or Hebel block
minimum ‘A’
‘X’ - Refer to Table 2 for Floor Protector dimension
Allow gas line into
firebox
(if applicable)
RECESS REQUIRED (40mm Min. 100mm Max)
‘Y’ - Refer to Table 2 for
Floor Protector dimension
Air Vent
Air Vent
min. 2 x 100 x 50mm or 80mm diam
wall of floor mounted air vents
100
Flue pipe casing
recommended
S/S Flue pipe
Rock-wool
insulation
(Glue rock-wool
using fire cement
to the firebox and
gather)
B + recessed
Secure firebox with 2 x 6mm
dynabolts for earthquake
restraints
Maintain the air intake
unobstructed
Concrete Lintel
or Hebel Block
Rock-wool
insulation
Allow 5mm gap around all
four sides of the firebox to
fit Stainless Steel cover &
allow for firebox expansion
RECESSED REQUIRED
40mm Min. - 100mm Max recess
IMPORTANT
No combustible material into chimney chase
Refer
Table 2. for temporary lintel height
Jetmaster
Flange
Allow 5mm gap between plaster and flange to
ensure stainless steel cover can be fitted to the box.
DO NOT PLASTER OVER THE FLANGE
* A minimum 75mm thick Floor protector is only required if finished surface is combustible e.g: timber
decking
Please note that these dimensions (based on Masonry margins) are the absolute minimum sizes - widths
(A & B) maybe increased if desired. If you intend on recessing the firebox, please add the recess value to
Dimension ‘B’. MINIMUM RECESS = 40 / MAXIMUM RECESS = 100mm
It is important to ensure the Jetmaster firebox is seated at the required finished floor protector level.
WArninG:
Minimum cavity sizes leave NO MARGIN FOR ERROR. If the cavity is larger than minimum
dimensions (A & B) close up the lateral sides (see Fig. 3) using hebel block, concrete block or similar
(do not use any combustible material).
AllOW 5mm GAp ArOunD All fOur siDEs Of thE firEBOX tO fit stAinlEss stEEl WEAthEr
COVER, i.e. do not plaster up to the flange of the firebox, see Fig 5.
Drawing Not
To Scale
Fig. 4
Fig. 5
plAn
Drawings Not
To Scale
Fig. 3
