Flue Terminal Positions - Worcester GREENSTAR 24i junior Instruction Manual

Minimum dimensions of flue terminal positions for balanced room sealed flues with
fanned draught:
DRWG. TERMINAL POSITION
REF:
1
A Directly below an opening, air brick, opening windows, etc.
1
B Above an opening, air brick, opening window, etc.
1
C Horizontally to an opening, air brick, opening window, etc.
D Below gutters, soil pipes or drain pipes
E Below eaves
2
F Below balconies or car port roof (lowest point)
G From a vertical drain pipe or soil pipe
H From internal or external corner or to a boundary alongside the terminal
I Above ground, roof or balcony
J From a surface or boundary facing the terminal
K From a terminal facing the terminal
2
L From an opening in the car port (e.g. door, window) into the dwelling 1200mm
M Vertically from a terminal on the same wall
N Horizontally from a terminal on the same wall
O From a non combustible vertical structure on the roof
P Above intersection with the roof
1 In addition, the terminal should not be nearer than 150mm (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 Not recommended.
*
See instructions supplied with vertical flue kits.
**
Care should be taken to ensure terminal siting
does not cause a nuisance to adjacent properties.
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior
8 716 107 336b (11/05)

FLUE TERMINAL POSITIONS

• The flue must be fitted and terminated in
accordance with the recommendations of
BS5440 : Part 1.
• The flue must not cause an obstruction.
DISTANCE
• Discharge and any noise from the flue outlet
must not cause a nuisance.
300mm
• Flue gases have a tendency to plume and in
certain weather conditions a white plume of
300 mm
condensation will be discharged from the flue
300 mm
outlet. This could be a nuisance, for example,
near security lighting.
75mm
• The air inlet/outlet duct and the terminal of
200mm
the boiler must not be closer than 25mm to
any combustible material.
200mm
Detailed recommendations on protection of
150mm
combustible materials are given in
**
BS 5440:1.
300mm
• A protective terminal guard must be fitted if
300mm
the terminal is 2m or less above a surface
**
to which people have access.
600mm
The guard must be spaced equally (minimum
1200mm
50mm) around the flue and fixed to the wall
with plated screws.
See Contact Information (inside front cover).
1500mm
300mm
*
*
Terminals adjacent to windows or openings on pitched
and flat roofs.
The flue should not penetrate
the shaded area.
600mm
600mm
2000mm
FLUE TERMINAL POSITIONS
16