7
Heat & Glo • SL-350TRSI-AUE • 2089-902 Rev. B • 6/06
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 flue terminal under a roofed area.
4. See Appendix J, Figure J1(a) and J2(a) for clearances required from a flue
terminal to a LP Gas cylinder. A flue terminal is considered to be a source of ignition.
MINIMUM CLEARANCES REQUIRED FOR BALANCED FLUE TERMINALS
OR THE FLUE TERMINALS OF OUTDOOR APPLIANCES
Figure 5.
CLEARANCES 'n' (mm)

Space heaters All other appliances

Up to 50 MJ/h
input UP to 50 MJ/h
input Over 50 MJ/h &
up
to 150 MJ/h
Over 150 MJ/h
input
150 500 1000 1500
T = Flue terminal M = Gas meter Shading indicates prohibited
I = Mechanical air inlet P = Electricity meter or fuse box areas for flue terminals
a - Below eaves, balconies or other projections: MIN. CLEARANCE (mm)
Appliances to 50 MJ/h input ................................................................................................ 300
Appliances over 50 MJ/h input ............................................................................................5 00
b - From the ground or above a balcony...................................................................................... 30 0
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......................................................... 5 00
h - From any other flue terminal, cowl, or combustion air intake ............................................... 50 0
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 ......................................................................................... 5 00
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-floor ventilation............................................................................................................. below