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| See note 2 |
See note 3
T
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 - in. (mm) | ||
| Appliances up to 50 MJ/h input | 12 | (300) | |
| Appliances over 50 MJ/h input | (500) | ||
b | - From the ground or above a balcony | 12 | (300) | |
c | - From a return wall or external corner | (500) | ||
d | - From a gas meter (M) | 39 | (1000) | |
e | - From an electricity meter or fuse box (P) | (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 | (500) | |
h - From any other flue terminal, cowl, or combustion air intake | (500) |
j- Horizontally from an openable window, door,
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Appliances up to 150 MJ/h input | (500) | |
Appliances over 150 MJ/h input | 60 | (1500) |
k - From a mechanical air inlet, including a spa blower | 60 | (1500) |
n- Vertically below an openable window,
inlet or any other opening into a building, with the exception of | See table | |||
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| below | ||
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| CLEARANCE |
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Space Heaters |
| All other appliances |
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Up to 50 MJ/h input | Up to 50 MJ/h input | Over 50 MJ/h input and | Over 50 MJ/h input | |
Up to 150 MJ/h input | ||||
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6 in. (150 mm) | 20 in. (500 mm) | 39 in. (1000 mm) | 59 in. (1500 mm) | |
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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 6.3 Minimum Clearances for Termination
Heat & Glo • | 25 |