Flue Termination Position - Keston HEAT 2 45 Installation & Servicing

2.9 FLUE TERMINATION POSITION

Twin Flue Positions
A Below an opening (1)
B Above an opening (1)
Horizontally to an opening
C
D Below gutters,soil pipes or drain pipes
E Below eaves
F Below balcony or car port roof
G From a vertical drain pipe or soil pipe
H From an internal or external corner or to a boundary
alongside the terminal (2)
I Above ground,roof or balcony level
J From a surface or boundary facing the terminal
K From a terminal facing a terminal
L From an opening in the car port into the building
M Vertically from a terminal on the same wall
Horizontally from a terminal on the same wall
N
O From the wall on which the terminal is mounted
P From a vertical structure on the roof
Q Above intersection with roof
,(1) In addition, for temperature and structural reasons, the terminal should not be nearer than 150 mm (fanned draught) to an
opening in the building fabric formed for the purpose of accommodating a built-in element such as a window frame
,(2) The reference to external corners does not apply to building protrusions not exceeding 450 mm, such as disused chimneys on
external walls for: fanned draught appliances
Pitched roof with structure
3 0 0 m m
m in
150mm
min
Vertical termination must have an
elbow with terminal fitted directed from
roof, 150mm above roof intersection
Note. Recomend to fit deflector,
with air taken from side wall or low level
preventing rain ingress
(min 500mm separation).
If chimney penetrates dotted area such that
A is less than 300mm,
B shall not be less than 300mm.
GENERAL INSTALLATIONS
All parts of the system must be
constructed in accordance with BS
5440 Part 1, except where specifically
mentioned in these instructions.
All pipe work must be adequately supported.
All joints other than approved push-
on or plastic compression connectors
must be made and sealed with solvent
cement suitable for muPVC pipes and
conforming to BS 6209.
20
SECTION 2 - INSTALLATION
When Flue & Air Terminals are
Flue min. spacing Air min. spacing Flue min. spacing Air min. spacing
When running flue pipes vertically
they MUST be a minimum of 140mm apart
Air Terminal
and termination MUST comply with Sections 2.8
A = 600mm
B = 2000mm
The flue terminal shall not penetrate
the shaded area of the roof
Consideration must be given to Gas
Safe bulletin TB200/TB008 regarding
flues in voids.
The boiler casing must always be
correctly fitted to the boiler when leaving
the appliance operational.
External wall faces and any internal
faces of cavity walls must be good.
less than 500mm apart
300mm 50mm
300mm 50mm
300mm 50mm
75mm 75mm
200mm 50mm
200mm 50mm
150mm 50mm
200mm 50mm
300mm 100mm
600mm 100mm
1200mm 1200mm
1200mm 100mm
1500mm 1500mm
300mm 300mm
40mm 40mm
NA NA
NA NA
A
A
A
B
Acceptable
range of air
pipe siting
AIR SUPPLY
The Keston Heat is a room-sealed
appliance and therefore does not require
purpose provided ventilation to the boiler
room for combustion air.
COMPARTMENT INSTALLATION
Due to the low casing temperatures
generated by the boiler, no compartment
ventilation is required. However, the
cupboard or compartment must not be
used for storage.
When Flue & Air Terminals are
more than 500mm apart
300mm 50mm
300mm 50mm
300mm 50mm
75mm 75mm
200mm 50mm
200mm 50mm
150mm 50mm
200mm 50mm
300mm 100mm
600mm 100mm
1200mm 1200mm
1200mm 100mm
1500mm 1500mm
300mm 300mm
40mm 40mm
300mm NA
150mm NA
TERMINAL POSITIONS
Minimum Separation
Flue
140mm
Pipe Elbow
Air Pipe
Terminal
Installation & Servicing