Baxi Potterton 24 Eco HE manual Likely flue positions requiring Flue terminal guard

7.0 SITE REQUIREMENTS

7.7 Flue

NOTE: Due to the nature of the boiler a plume of water vapour will be discharged from the flue. This should be taken into account when siting the flue terminal.

1. The following guidelines indicate the general requirements for siting balanced flue terminals. For GB recommendations are given in BS 5440 Pt 1. For IE recommendations are given in the current edition of I.S. 813 “Domestic Gas Installations”.

2. If the terminal discharges onto a pathway or passageway, check that combustion products will not cause a nuisance and that the terminal will not obstruct the passageway.

3. If a terminal is less than 2 metres above a balcony, above ground or above a flat roof to which people have access, then a suitable terminal guard must be provided.

L	B,C
K
	N
G	G
D	M
		D	H,I
J	A	A
E
	F	F
	G
Likely flue positions requiring
a flue terminal guard

Fig. 14

	Terminal Position with Minimum Distance (Fig. 14)	(mm)
A*	Directly below an openable window, air vent or any other
	ventilation opening.	300
B	Below gutters, drain/soil pipe.	25
C	Below eaves.	25
D	Below balcony/car port roof.	25
E	From vertical drain pipes and soil pipes.	25
F	From internal or external corners.	25
G	Above adjacent ground or balcony level.	300
H	From a surface or boundary facing the terminal.	600
I	Facing terminals.	1200
J	For opening (door/window) in car port into dwelling.	1200
K	Vertically from a terminal on the same wall.	1500
L	Horizontally from a terminal on the same wall.	300
M*	Above an opening, air brick, opening window etc.	300
N*	Horizontally to an opening, air brick, opening window etc.
		300

*In addition, the terminal should be no nearer than 150mm to an opening in the building fabric formed for the purpose of accommodating a built-in element such as a window frame. See BS 5440 Pt. 1.

300min

Terminal

Assembly

Top View Rear Flue

Fig. 15 Property Boundary Line

16 Publication No. 5111811