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Where a room-sealed appliance is in-
stalled in a room containing a bath or
shower, any electrical switch or appli-
ance control, utilising mains electricity
should be so situated that it cannot be
touched by a person using the bath or
shower.
The location must permit the provision of an
adequate flue and termination.
For unusual locations special procedures
may be necessary and BS 6798 gives de-
tailed guidance on this aspect.
A compartment used to enclose the appli-
ance must be designed specifically for this
purpose. This appliance is not suitable for
external installation.
5.3
Flue system
The provision for satisfactory flue termina-
tion must be made as described in BS 5440
part 1. For Ireland (IE), refer to I.S.813.2002.
The appliance must be installed so that the
flue terminal is exposed to external air.
It must not be installed so that the terminal
discharges into an other room or space as
an outhouse or lean-to. It is important that
the position of the terminal allows a free pas-
sage of air across at all times.
The terminal should be located with due
regard for the damage or discoloration that
might occur to building products in the vi-
cinity. In cold and/or humid weather water
vapour may condense on leaving the flue
terminal; the effect of such "steaming" must
be considered.
Pluming may easily occur at the terminal.
Where possible, terminal position which
could cause a nuisance should be avoided.
The minimum acceptable spacing from
the terminal to obstructions and ventilation
- 26 -
- 26 -
GENERAL REQUIREMENTS
openings are specified in Fig. 5.1.
BC
G
E
L
JK
I
Fig. 5.1
Terminal position
A Directly below the window or
other opening
B Below gutters, soil pipes or
drain pipes
C Below eaves
D Below balconies*
E Below car port roof
F From vertical drain pipes and
soil pipes
G From internal corners**
H From external corners
I
Above ground or balcony lev-
el***
J From a wall or surface
K From a terminal facing a termi-
nal
L From an opening in the car port
(e.g. door, window) into dwell-
ing
M Vertically from a terminal in the
same wall
N Horizontally from a terminal in
the same wall
O Above the roof pitch with roof
slope less than or equal to 30°
O Above the roof pitch with roof
slope more than 30°
O
H
P
I
F
A
D
Q
I
M
N
I
I
mm
300
75
200
600
NO
150
450
300
300
600
2500
NO
1500
300
350
600
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