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Horizontal and vertical fl ue terminal positioning
All measurements in millimetres
Note
•
All measurements are the minimum clearances required
•
Terminals must be positioned so as to avoid combustion products
entering the building
•
Support the fl ue at approximately one metre intervals and at a
change of direction, use suitable brackets and fi ttings.
Flue bracket part numbers:
7 716 191 092 (100mm dia.)
7 716 191 173 (100mm dia. x 6)
7 716 191 174 (125mm dia.)
7 716 191 177 (100mm dia.) – CDi Compact & Si Compact only
7 716 191 178 (100mm dia. x 6) – CDi Compact & Si Compact only
7 716 191 179 (125mm dia.) – CDi Compact & Si Compact only
42
42
3
600
1,500
2
1
300
1,500
Key to illustration
1.
2.
3.
4.
5.
6.
7.
8.
2
1,200
Boundary Line
300mm adjacent to a boundary line.
The dimension below eaves, balconies and car ports can be
reduced to 25mm, as long as the fl ue terminal is extended to
clear any overhang. External fl ue joints must be sealed with
suitable silicon sealant.
1,500mm between a vertical fl ue terminal and a window or
dormer window.
1,200mm between terminals facing each other.
Vertical fl ue clearance, 300mm adjacent to a boundary line.
600mm distance to a boundary line, unless it will cause a
nuisance. BS 5440:Part 1 recommends that care is taken when
siting terminal in relation to boundary lines.
600mm minimum clearance from a skylight to a vertical fl ue.
Vertical fl ue clearance, 500mm to non-combustible
building material, and 1,500mm clearance to combustible
building material.
25
5
300
600
6
4
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