13
Heat & Glo • 350X-AU, 550X-AU Installation Manual • 2279-980
• 12/17
B. Chimney Diagram
Figure 4.3 Minimum Clearances for Termination
NOTES:
1. All distances are measured vertically or horizontally along the wall to a point
in line with the nearest part of the terminal.
2. Prohibited area below electricity meter or fuse box extends to ground level.
3. Flue terminal under covered area:
a) The covered area or recess shall be open on at least two sides.
b) Fan assisted flue appliance shall have at least one side open and the terminal shall be
within 500 mm of the opening and discharging in the direction of the opening.
4. Clearance from a flue terminal to a LP cylinder shall be a minimum of 1 meter.
MINIMUM CLEARANCES REQUIRED FOR BALANCED FLUE TERMINALS
OR THE FLUE TERMINALS OF OUTDOOR APPLIANCES
T
= Flue terminal
M
= Gas meter
Shading indicates prohibited
I
= Mechanical air inlet
P
= Electricity meter or fuse box
areas for flue terminals
f
c
n
I
openable
window
j
j
j
door
h
h
h
T
e
e
P
T
g
k
k
d
b
d
M
a
c
g
See note 2
See note 3
T
a - Below eaves, balconies or other projections:
MIN. CLEARANCE - in. (mm)
Appliances up to 50 MJ/h input .................................................................................... 12 (300)
Appliances over 50 MJ/h input ...............................................................................20-1/2 (500)
b - From the ground or above a balcony ............................................................................... 12 (300)
c - From a return wall or external corner .........................................................................20-1/2 (500)
d - From a gas meter (M) ...................................................................................................... 39 (1000)
e - From an electricity meter or fuse box (P) ...................................................................20-1/2 (500)
f - From a drain or soil pipe .................................................................................................... 6 (150)
g - Horizontally from any building structure (unless appliance approved
for closer installation) or obstruction facing a terminal ............................................... 20-1/2 (500)
h - From any other flue terminal, cowl, or combustion air intake
.................................... 20-1/2 (500)
j - Horizontally from an openable window, door, non-mechanical air
inlet, or any other opening into a building, with the exception of
sub-floor ventilation:
Appliances up to 150 MJ/h input ............................................................................20-1/2 (500)
Appliances over 150 MJ/h input ................................................................................... 60 (1500)
k - From a mechanical air inlet, including a spa fan
............................................................. 60 (1500)
n - Vertically below an openable window, non-mechanical air
inlet or any other opening into a building, with the exception of ...................................... See table
sub-floor ventilation
................................................................................................................ below
CLEARANCE
Space Heaters
All other appliances
Up to 50 MJ/h input
Up to 50 MJ/h input
Over 50 MJ/h input and
Up to 150 MJ/h input
Over 50 MJ/h input
6 in. (150 mm)
20 in. (500 mm)
39 in. (1000 mm)
59 in. (1500 mm)