Athena Technologies A88028 manual Metal Flue BOX/125mm Diameter Flues Figs a and 3B

2.2.3METAL FLUE BOX/125mm DIAMETER FLUES (Figs. 3A and 3B)

This fire may be installed in a double walled or insulated metal box built to the requirements of B.S. 715 e.g. Selkirk, Product Code Number 0404805, using our fixing kit G.C. Number 159 634 ÿ Number 992137. The box must be lagged as detailed in Fig. 3B and mounted on a non-combustible plinth at least 25mm thick. Ensure that the base of the opening is level with the hearth. A larger box built to the requirements of B.S. 715 and insulated as in Fig. 3B may be used. The front opening must be as shown in Fig. 3A. The flue should be twin walled e.g. Selkirk IL flues, or insulated type of at least 125mm internal diameter and with a minimum effective height of 3 metres. The depth of the opening must be at least 200mm.

NOTES:

1.If the flat area around the front opening of the box is less than as specified in Fig. 1, it may be necessary to use additional sealing material to achieve a good seal.

2.The flue spigot restrictor MUST NOT be fitted.

	125 I/D
			45	7
98
UE
FL	RE
NT
CE
	560		0
			20
				610
	40	7		2
				21
FREESTANDING
GAS FLUE BOX				Fig. 3A
SELKIRK CODE 0404805

Refer to the following illustrations for configuration.

Cover the top, rear and sides of the fire housing as shown with 100mm (4in) loft insulation material as shown. If the gap between the fire housing and any combustible material is less than 100mm, squeeze the insulation material between the two surfaces.

The minimum distance from any studding or other combustible material and the flue pipe or any part of

the fire housing must be

Fire housing

25mm (1in).

Sealant

Note: The plaster board does not overlap the edge of the fire housing. Any non-combustible fire surround material used overlaps as shown. The non-combustible fire surround material must be sealed to the fire housing.

Non-combustible fire surround material

Non-combustible fire

surround material

The non-combustible material must be sealed to the fire housing to form an air tight seal all around.

Fig. 3B

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