Flue Regulations - FireBird System 90 Technical Manual

3
3.1 standards & regulatIons - Flue regulatIons
The terminal should be positioned to avoid combustion products entering the building or accumulating in
stagnant pockets around buildings. The terminal must be protected by a guard if it is less than 2 metres above
ground level or in a position where any person has access to it (i.e. a balcony). a heat protection shield should be
fitted if the terminal is less than 850mm from a plastic or painted gutter or less than 450mm from painted eaves.
always CHeCk For any BuIldIng regulatIons aMendMents wHICH May
Have Been Issued aFter tHe PuBlICatIon oF tHIs Manual
regular appliance (open, low level discharge and Balanced) Flue termination Clearance
The basic requirement with regard to flue positioning is that no hazard or nuisance is caused by the flue gases.
Diagram 20a
Boundary
Minimum distances to terminals in millimeters as measured from the top of the chimney
or the outer edge of where flue gases pass through low level discharge openings
A Directly below an opening, airbrick, opening window etc.
B Horizontally to an opening, airbrick, opening window etc.
C Below a gutter, eaves or balcony with protection
D Below a gutter or a balcony without protection
E From vertical sanitary pipe work
F From an internal or external corner or surface or boundary alongside the terminal
G Above ground or balcony level
H From a surface or a boundary facing the terminal
J From a terminal facing the terminal
K Vertically from a terminal on the same wall
L Horizontally from a terminal on the same wall
M Above the highest point of an intersection with the roof
N From a vertical structure on the side of the terminal
O Above a vertical structure less than 750mm from the side of the terminal
P From a ridge terminal to a vertical structure on the roof
Q Above or to the side of any opening on a flat or sloping roof
R Below any opening on a sloping roof
BalanCed Flue sItIng
Prevailing winds should be taken into account when siting a flue.
Clearances advised by Bs 5410-1: 2014
Diagrams 20a and 20b show clearances advised by BS 5410-1: 2014.
Regional requirements where flue clearances differ can be found in the
regional requirements section in OFTeC Book Four.
Boundary
F
J
H
Location
P
Q
Q
Q
M
C & D
B
A
E
G
6
O
Q
Q
Q
N
R
K
F
L
F
Appliance Burner Type
Pressure Jet
Non Condensing
ROI & NI
600mm
600mm
75mm
600mm
300mm
300mm
300mm
600mm
1200mm
1500mm
750mm
600mm
750mm
600mm
1500mm
300mm
1000mm
Q