Baxi Potterton Gold FSB 30 HE manual Flue, Min

	Terminal Position with Minimum Distance (Fig. 17)	(mm)
Aa	Directly below an opening, air brick, opening
Ba	windows, etc.	300
	Above an opening, air brick, opening window etc.	300
Ca	Horizontally to an opening, air brick, opening window etc.	300
D	Below gutters, soil pipes or drain pipes.	25
E	Below eaves.	25
F	Below balconies or car port roof.	25
G	From a vertical drain pipe or soil pipe.	25
H	From an internal (i) or external (ii) corner.	(i) 25 (ii) 115
I	Above ground, roof or balcony level.	300
J	From a surface or boundary line facing a terminal.	600
K	From a terminal facing a terminal (Horizontal flue).	1200
	From a terminal facing a terminal (Vertical flue).	600
L	From an opening in carport (e.g. door, window)
	into the dwelling.	1200
M	Vertically from a terminal on the same wall.	1500
N	Horizontally from a terminal on the same wall.	300

7.0Site Requirements

7.8Flue

NOTE: Due to the high efficiency 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. When siting the flue take into consideration the effect the
R	From adjacent wall to flue (vertical only).						300		plume of water vapour may have on neighbours .
S	From an adjacent opening window (vertical only).						1000
T	Adjacent to windows or openings on pitched and flat roofs						600		4. Adjacent surfaces close to the flue terminal may need
U	Below windows or openings on pitched roofs						2000		protection from the effects of condensation. Alternatively a flue
									deflector kit (part no. 248167) is available.
Table. 2
a	In addition, the terminal should be no nearer than 150 mm to an								5. For installation of the flue into an internal corner at the
opening in the building fabric formed for the purpose of accommodating									25mm dimension the flue plume deflector kit (part no. 248167)
a built-in element such as a window frame. See BS 5440 Pt. 1.									must be fitted.
NOTE: The distance from a fanned draught boiler terminal									6. * Reduction to the boundary is possible down to 25mm but
installed parallel to a boundary may not be less than 300mm*									the flue plume deflector kit (part no. 248167) must be fitted.
in accordance with the diagram below, unless the flue deflector									7. If a terminal is less than 2 metres above a balcony, above
kit is used (see 7.8.6 opposite)
									ground or above a flat roof to which people have access, then
			300 min
	Terminal				*				a suitable terminal guard must be provided.
	Assembly
									8. If required a suitable terminal guard (part no. 248484) is
									available from Potterton for use with the flue deflector. See
									also Section 8.8.
									9. For fitting under low soffits and eaves the Plume
									Displacement Kit or Flue Deflector Kit is recommended.
	Top View Rear Flue
									IMPORTANT:
Fig. 16a									• Only ONE 25mm clearance is allowed per installation.
									• Under car ports we recommend the use of the plume
						Property Boundary Line			displacement kit.
									• The terminal position must ensure the safe and
									nuisance - free dispersal of combustion products.
						IMPORTANT: If fitting a Plume
						Displacement Flue Kit, the air inlet
			T			must be a minimum of 150mm from
		J,K				any opening windows or doors.
				U
								Plume
								Displacement Kit

R N

M

I I

F B

L

A

G

I

Likely flue positions requiring a flue terminal guard

© Baxi Heating UK Ltd 2011

C	D	A
	E
I	S	I
	F	J,K
	A
H	H

Fig. 17

Air Inlet

	150mm
Fig. 17a	MIN.

Opening Window or Door

19