7
Heat & Glo • SL-550TRSI-AUE • 2079-902 Rev. K • 10/08
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. See clause 5.13.6.6 for restrictions on a fl ue terminal under a roofed area.
4. See Appendix J, Figure J1(a) and J2(a) for clearances required from a fl ue
terminal to a LP Gas cylinder. A fl ue terminal is considered to be a source of ignition.
MINIMUM CLEARANCES REQUIRED FOR BALANCED FLUE TERMINALS
OR THE FLUE TERMINALS OF OUTDOOR APPLIANCES
Figure 4.
a - Below eaves, balconies or other projections:
MIN. CLEARANCE (mm)
Appliances to 50 MJ/h input ...................................................................................................300
Appliances over 50 MJ/h input ...............................................................................................500
b - From the ground or above a balcony .........................................................................................300
c
- From a return wall or external corner .........................................................................................500
d - From a gas meter (M) ..............................................................................................................1000
e - From an electricity meter or fuse box (P) ...................................................................................500
f
- From a drain or soil pipe ............................................................................................................150
g - Horizontally from any building structure (unless appliance approved
for closer installation) or obstruction facing a terminal ...............................................................500
h - From any other fl ue terminal, cowl, or combustion air intake ....................................................500
j
- Horizontally from an openable window, door, non-mechanical air
inlet, or any other opening into a building, with the exception of
sub-fl oor ventilation:
Appliances up to 150 MJ/h input ............................................................................................500
Appliances over 150 MJ/h input ...........................................................................................1500
k
- From a mechanical air inlet, including a spa blower ...............................................................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-fl oor ventilation ................................................................................................................ below
T
= Flue terminal
M
= Gas meter
Shading indicates prohibited
I
= Mechanical air inlet
P
= Electricity meter or fuse box
areas for fl ue 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
CLEARANCE 'n' (mm)
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
150
500
1000
1500