Figure 4.3.2 Minimum Space Requirements For Flue Terminals - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

4.3 Flue Terminal Locations
The diagram below details the minimum spacing requirements for flue terminals from other building features when
using horizontal flue terminals with C53 twin pipe flue systems.
It is recommended that air supply inlet terminals are positioned no closer than 300mm to any flue terminal when
using C53 twin pipe flue systems. Air supply inlets should preferably be positioned lower than flue terminals.
Figure 4.3.2
Dim
A Directly below an opening, air brick, opening window etc
B Above an opening, air brick, opening window etc
C Horizontally to an opening, air brick, opening window etc
D Below gutters, soil pipes or drain pipes
E Below eaves
F Below balconies or car port roof
G From a vertical drain pipe or soil pipe
H From an internal or external corner
I Above ground roof or balcony level
J From a surface facing the terminal
K From a terminal facing the terminal
L From an opening in the car port (e.g. door, window) into the dwelling
M Vertically from a terminal on the same wall
N Horizontally from a terminal on the same wall
O From the wall on which the terminal is mounted
P From a vertical structure on the roof
Q Above intersection with roof
HAMWORTHY HEATING LTD
Note: Flue Installation should comply with BS5440 Part 1
Terminal Position
10
MILBORNE
Min Distance
(mm)
300
300
300
75
200
200
150
300
300
600
1200
1200
1500
300
N/A
N/A
N/A
500001130/J