Metal Flue Box And Hearth - Vision Ezi-Slide V150 B Installation & User's Instructions

INSTALLER GUIDE
the base of the fireplace opening in the wall to the finished floor level shall be at
least 100mm. Where there is no floor covering or carpet, and the floor is of a
type that is likely to be covered in such a way in the future, then the distance
from the base of the fireplace opening in the wall to the floor level should be
increased to at least 175mm.
If fitting a fascia that does not have a separate firefront and a hearth is not fitted,
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the heat engine must be installed so that distance from the base of the fireplace
opening in the wall to the finished floor level shall be at least 100mm. Where
there is no floor covering or carpet and the floor is of a type that is likely to be
covered in such a way in the future then the distance from the base of the
fireplace opening in the wall to the floor level should be increased to at least
175mm.
To protect from the risk of burns and ignition of clothing a tactile separator shall
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be used. The hearth detailed in section 3.8 meets the requirements for a tactile
separator. If this is not used then a 672mm long fender, kerb, horizontal bar, or
other barrier, being fixed not less than 50mm above floor level and positioned
300mm in front of the fixing plane of the fire will meet the requirement.

3.10.2 Metal flue box and hearth.

To a fireplace incorporating a metal flue box complying with the constructional
requirements of the current edition of BS715. The dimensions of the flue box must
conform to those shown in
figure 2. The top of the metal
flue box must be covered with
a 100mm layer of mineral wool
or equivalent insulation (See
figure 5).
Important Note: Where the
flue box has a base sheet that
is single wall (i.e. a single
metal sheet) the flue box must
be mounted on a non-
combustible hearth. The hearth
material must be at least
12mm thick.
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INSTALLER GUIDE
Figure 5. Metal flue box dimensions