7
3.0
Site Requirements – Page 7
I
3.1 Site Requirements
1. The Baxi Wentworth Deluxe and Kingston 2 Deluxe
gas fires can be fitted to an installation with the following
flue systems:
•
Fabricated steel
•
Conventional brick or stone
3.2 Ventilation
1. No purpose provided ventilation is normally required
for the appliance, normal adventitious room ventilation
being sufficient. Reference should be made to BS 5871
Part 2. For Ireland refer to IS 813 Section 10 of the Irish
Ventilation Requirements.
3.3 Masonry Flues
1. Any chairbrick must be removed if necessary to
achieve the minimum depth. The fireplace opening must
be a minimum of 408mm (16
1
/
16
in) wide (Fig. 2).
2. A conventional brick or stone chimney must have
minimum effective cross-sectional dimension of 225mm x
225mm (9 in x 9 in) or be a lined flue of minimum
diameter 125mm (5 in). The liner should be terminated at
the top of the builders opening and sealed from the
chimney. The minimum depth is shown in Fig. 3. If
necessary remove either the knee or the whole chairbrick.
3. The fireplace must have a flat vertical surface
measuring 605mm (23
13
/
16
in) high by 517mm (20
1
/
8
in)
wide (Wentworth) or 660mm (26 in) high by 563mm
(22
5
/
32
in) wide (Kingston 2), centrally placed about the
opening. This allows an effective seal to be made
between the wall and fire.
Also this area must be of
non-combustible
material, If a fire surround is to be
fitted its rear section must meet the same requirements.
Any gaps between the wall and surround must be sealed
(Fig. 4).
