2.MG.2A
ALL INSTRUCTIONS TO COMPLY WITH NZS5261:2003
Due to continued product improvement, The Fireplace Ltd reserves the right to change product specifications without prior notification
INSTRUCTIONS ARE FOR INSTALLATION INTO A COMPLETE MASONRY FIREPLACE CONSTRUCTION
I.E: CAVITY AND CHIMNEY CHASE (NO COMBUSTIBLES)
Masonry Definition: - Solid Concrete
- Concrete Block
- Brick
- Hebel Power Panel
Consult The Fireplace Ltd or your local agent for any variation of the installation specified below
Non Zero Clearance Box
JETMASTER IGC GAS CONVECTOR INSTALLATION INSTRUCTIONS
TYPICAL IN-BUILT MASONRY
9/2013
IMPORTANT: Read all instructions carefully before starting installation.
Failure to follow these instructions may result in a fire hazard and will void the warranty.
This appliance must be serviced every 12 months by a registered gas fitter.
Head Office & Showroom
12 Tawari St, Mt Eden, Auckland
0800 843 347 | 0800 The Fire
www.thefireplace.co.nz
2.MG.2B
GAS TRAY OPERATING OPTIONS
Front Back
Convector
Box
Gather
Y
Table 1
Fig. 2
JETMASTER IGC BOX DIMENSIONS
Drawings Not To Scale
Dimensions in mm
Fig. 1
SFB Manual *M.V. Wall Switch
700
850
1050
1200
1500
Table 2
MODEL A B Temporary
Lintel
X min*
Hearth
Y min*
Hearth
700 800 450 1200 300 1100
850 950 450 1200 300 1250
1050 1150 450 1200 300 1450
1200 1300 450 1200 300 1600
1500 1600 450 1200 300 1900
MINIMUM CAVITY SIZE
Table 3
Model A A1 A2 B C D E F G Y
700 700 800 750 341 650 290 200/250 630 265 280
850 850 950 900 341 650 290 250/300 630 265 280
1050 1050 1150 1100 341 570 290 250/300 550 265 280
1200 1200 1300 1250 341 570 290 250/300 550 265 280
1500 1500 1600 1550 341 570 290 250/300 550 265 280
Gather
C
E
G
D
A
A1
A2
B
F
2.MG.2C
CAVITY / FRAMING PREPARATION
Refer to Table 3 for the minimum cavity dimensions and temporary lintel height measurements, until the
convector box and flue system is installed.
Note: Temporary lintel height is measured from finished floor protector level.
Ensure suitable air vents (min. 2 x 80mm diameter or equivalent) in place to vent firebox cavity - these maybe
located in the floor or in the side wall space; make allowance (min. 2 x 80mm diameter or equivalent) at the
top of the chimney chase, See Fig. 3. Ensure vents are bird and vermin proofed.
PLAN
Drawings Not To Scale
A
B
Y
X
min 2 x 100 x 50mm or 80mm diam.
wall or floor mounted air vents
Air Vents
Air Vents
Allow gas line
into firebox
Floor Protector to be made of non-combustible material.
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’. Refer to Fig. 5
MAXIMUM RECESS = 100mm
It is important to ensure the Jetmaster gas convector is seated at the required finished floor protector level.
Fig. 3
Hearth
CROSS SECTION
FIREBOX INSTALLATION 2.MG.2D
650
110
Flue pipe casing
recommended
S/S Flue pipe
Rock-wool
insulation
min 2 x 100 x 50mm or
80mm diam. wall or floor
mounted air vents
All external air vents & ceiling
penetrations must be bird & rodent
proof with permanently fixed screens
20mm knockout discs,
access for gas pipes
Rock-wool
insulation
Min. 300mm Non combustible floor
protector on 6mm Hardiflex if floor is
made of combustible material
Secure firebox with 2 x 6mm
dynabolts for earthquake
restraints
Allow 2mm clearance for
expansion
Lintel Bar
Concrete Lintel or
Hebel Block (steel
lintel bar maybe
Temporary Lintel
1200mm or 1400mm
min 25 min 25
Drawings Not To Scale
570 = 1050 >1500
1. Fit and seal gather, using fire cement (exhaust cement) and bolts (supplied), to the convector box. Note:
Pop rivet back of gather to convector box if required.
2. Locate and position convector box and gather in cavity.
3. Attach rock wool to the sides & back of the convector box and gather. DO NOT BLOCK OFF the air entry
between the inner flue pipe and flue pipe casing or the air circulation between the vent holes in the cavity.
4. Drill a hole in the convector box for the Gas Line/ Wall switch cable (3m Supplied) or remove 20mm
knockout discs.
5. A minimum 300mm non combustible floor protector (hearth) is in front of the convector box. Ensure that
the base of the fire sits on the finished hearth level.
Fig. 4
650 = 700 & 850
2.MG.2E
RECESS PLAN
RECESS SECTION
Min 300 mm. Non Combustible
Floor Protector on 6 mm Hardiflex
if floor made of Combustible Material
min 2 x 100 x 50 mm
or 80 mm diam. wall
or floor mounted air
vents
SS Flue pipe
All external air vents & ceiling
penetrations must be bird & rodent
proofed with permanently fixed screen
20mm knockout
discs, access for
gas pipes
Flue pipe casing
recommended
Lintel where required
Concrete Lintel
or Hebel Block
B + recessed
650
25 25
110
Secure firebox with 2 x 6 mm
dynabolts for earthquake
restraints
Rock-wool
insulation
(Optional) Allow gas line
into firebox
Masonry or Hebel block
In Fill where requires
maximum 100 mm recessed
B + recessed
A
min 2x80 mm diam. or equal square or rectangle
shape area wall or floor mounted air vents
Y
Air Vents
Air Vents
X
Hearth
570 = 1050 >1500
650 = 700 & 850
Fig. 6
Fig. 5
2.MG.2F
FLUE INSTALLATION
Pr ojection (mm)
25 25
25
Air Ventilation Through Chimney Chase Air Ventilation Through Top Flashing
Drawings Not To Scale
Air Vent
min 2 x 80mm diam. or equal square or rectangle shaped area
Non combustible material
Hebel Block or
12 mm Promina board
or similar under the flashing
Oversize
Casing cover
is necessary
120 mm
minimum
200 mm
minimum
Spigot flashing to suit
flue pipe casing
Note: All external air vents & ceiling penetrations must be bird & rodent proofed with permanently fixed screens
Drip
Line
Drip
Line
Minimum 25mm gap between
flue pipe casing
& combustible surface
CHIMNEY CHASE AIR VENTILATION
1. Install first length of flue pipe crimped end down, inside gather collar. Rivet flue pipe in 3 places around
gather collar. Place bottom flue spider bracket around gather flue pipe collar, secure in position by
tightening up coach bolt/screw (supplied).
2. Install second length of the flue pipe crimped end down and fix by riveting in at least 3 places around the
flue pipe joint.
3. Install first length of the flue pipe casing by positioning on installed bottom flue spider bracket crimped
end up.
4. Position flue spacer at the flue pipe joint.
5. Repeat steps 1 - 4. As per manufacturers recommendation, the flue pipe shall extend not less than 3.6m
above the fire box.
6. The flue is required to be at least 500mm above the nearest point on any part of the buildings roof and
neighbouring buildings if within a 3m radius. Refer to NZS 5261:2003; 2.6.13 for further information.
7. The last length of flue pipe needs to extend past the flue pipe casing by at least 150mm or flush with the
top of the casing cover spigot when fitted - sizing/measuring and cutting down should be carried out prior
to the flue pipe casing being fitted over the flue pipe.
8. Before fitting casing cover, place the spider in opposition with the spider post facing down between the
flue pipe and flue pipe casing. Secure spider in position. Place the casing cover over the flue pipe, press
down firmly onto the spider. Check airway around the casing cover is clear, then secure in position using
three stainless steel rivets.
9. Fit cowl to top of flue - DO NOT RIVET IN POSITION. In high wind areas, it is recommended that the cowl
be secured in position with a stainless steel self tapping screw, this will enable the cowl to be removed for
cleaning. Discuss Bird Proofing needs with your installer. N.B. in extreme wind areas it may be necessary
to consult The Fireplace Ltd or your local agent for further technical assistance.
10. If flue is concealed in a chase, allow for air vents (2 x 80mm diam. or equivalent) at the highest possible
point on the chimney chase or alternatively, allow a min 25mm air space between the casing cover spigot
and the outer casing. Refer to Figure 7 and 8.
Fig. 7 Fig. 8
2.MG.2G
Drawing Not To Scale
FLUE PENETRATION
or less
Any nearby structure
1000
1000
500
500
min. 200 between
flue terminals
increase as necessary until
nothing within 500mm of flue
terminal
end of the flue shall
be at least 500mm
from the nearest part
of the roof
flue pipe
flue pipe casing
25
Approved Flashings
to S2
Cowl
Casing Cover
Air Gap
Top Spider
min. 2 x 80mm diam.
or equal square or
rectangle shape area
Air Vents
Note: All external air vents & ceiling penetrations must be bird & rodent
proofed with permanently fixed screens
Minimum 25mm gap
between flue pipe casing &
combustible surface
External Requirements
Refer to NZS 5261:2003
MINIMUM HEIGHT OF FLUE SYSTEM EXIT
As per NZS 5261:2003 2.6.1.3 Flue Terminals
Fig. 9
Fig. 10
Fig. 12
Drawing Not To Scale
CLEARANCE TO COMBUSTIBLE MANTELS
2.MG.2H
Mantel / Surround projection from wall
Top Clearance (mm)
Height from top of firebox to underside of mantel/surround
Projection (mm)
Combustible
Materials
Non-Combustible
Materials
0
25
45
50
90
100 150
170
200 250 300
350
100
200
300
400
500
230
320
380
425
460
483
X
Y
X
Y
X
Y
Flue Pipe
Min. 25mm Clearance
Min. 25mm Clearance
Flue Pipe Casing
Fig. 11
Note: A minimum 25mm clearance from flue pipe casing to combustible material must be maintained.
If you are using a decorative surround constructed of combustible material, it must be located within the
shaded area defined in Fig. 12.
Dimensions in mm
CHIMNEY CHASE MINIMUM TRIM OUT
MODEL FLUE SYSTEM MINIMUM TRIM OUT DIMENSION
X (min) Y (min)
700 200/250 300 300
850 250/300 350 350
1050 250/300 350 350
1200 250/300 350 350
1500 250/300 350 350
Table 4
Head Office & Showroom
12 Tawari St, Mt Eden, Auckland
0800 843 347 | 0800 The Fire
www.thefireplace.co.nz
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