16
5.0
Installation - Page 15
5.4 Preparation of the Site
(cont)
16. Taking into consideration the dimensions in fig.13 and 14
on page 12 and the position of the pilot hole, cut a suitable
hole for the flue box assmebly.
17. Once the height of the flue has been determined make a
hole through the wall to accept a 150mm diameter sleeve.
Ensure that when the 150mm diameter hole is cut through
the wall and the rectangular recess is cut in the outer wall,
no timbers are cut.
18. Make sure that the vapour barrier is cut carefully and
made good to maintain its integrity.
19. A separate hole should be made towards the bottom
Right Hand corner of the fire location to enable the electric
cables to pass through the wall and connect the fire to the
flue box and allow for the 230V supply cable to the fan box.
20. The cavity should be sealed where the flue box hole has
been cut. Rockwool or equivalent may be used, it should be
fitted above and to each side of the opening to a thickness of
at least 100mm.
21. A sloping plate should be fitted above the 150mm
diameter sleeve in accordance with IGE Publications DM2
Section 6.1.5 (b).
22. Measure the length required for a 150mm diameter metal
wall sleeve, which should fit between the inside wall face
and the inside of the outer wall or the rear of the fan box,
which ever is the closer to the fire. Cut to length and fit into
the 150mm diameter hole. Seal any gaps with a suitable
sealant at each end.
Proceed to section 5.5 Fitting the Fan Box
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