Piazzetta 600 HT, Installation, Use And Maintenance Instructions

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E
n
g
li
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12 H07024510 / DT2000575 - Rev. 00
The flue must be fitted at the top with a flue terminal designed to aid
dispersion of the products of combustion in the atmosphere.
The flue terminal must comply with the following requirements:
- it must have an internal section and shape the same as the flue;
- it must have a useful outlet section of not less than twice that of the
flue;
- the part of the flue that emerges from the roof or remains in contact
with the outside (e.g. in the case of an open loft), must be covered
with brick or tile elements and well insulated. It must be built in such
a way as to prevent the penetration of rain, snow and foreign matter
into the flue and to ensure that in the event of winds from all directions
and angle, discharge of the combustion products is assured (flue
terminal with down-draught cowl);
- any buildings or other obstacles that are higher than the flue terminal
must not be too close to the actual terminal Fig. 9;
- the flue terminal must be positioned in such a way as to ensure
adequate dispersion and dilution of the angle of the roof and position
see Fig. 10.
Clearances to easily ignited roof coverings (e.g. thatch) need to be
increased in accordance with the building regulations part J.
6-8 m
A
B
*
*B free area is
twice that of A
A
B B
F
E
C
A
G
D
B
The illustration and table identify the
minimum requirements as dictated by
Building Regulations
CHIMNEY TERMINATION
Any adjacent
building structure
whether connected
or not
N.B. All dimensions relate
to the bottom edge of the
terminal opening
Fig. 7 Fig. 8
Fig. 9
Fig. 10
DT2030051-00
DT2030052-00
DT2011502-00
DT2030191-00
1.3 CHIMNEY STACK
DT2012091-00
Dimension Minimum distance measured from the top of the chimney construction, excluding any pot or terminal
A
2, 3 metres horizontally clear of the roof surface, eg. if the roof pitch is 45°, then the chimney should project 2, 3 metres
above it.
B 1 metre, provided A is satisfied, or 600 mm above the ridge if G is less than 600 mm.
C
1 metre above the top of any flat roof, and the top of any openable root light, dormer window or ventilator, etc.,
if it is located within 2, 3 metres.
D/E If D is less than 2, 3 metres, E shall be not less than 600 mm.
F 600 mm above the ridge.
G Edge of chimney to roof ridge.