Infinity 800 HD UBL, Instruction For User, Installation & Servicing

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LT 7941 Issue No 3 (04/22)
800 HD with UBL INSTALLATION INSTRUCTIONS
Open the aperture size to accommodate the fire box as out lined at the beginning of the
section. With the height of the opening established and support for the fire box in place, take
out a further area of the plaster board lining to expose the inner brick work face of the chimney
breast as out lined in Fig 1.
The exposed area should be 1080mm from the base of the fire and 980mm in the width. With the
slip bracket attached to the fireplace frame. Secure the fire box back against the inner brick
work face of the chimney breast using rawl plugs and wood screws.
New plaster board can now be fitted to cover the exposed metal work, making sure that no
plater joints are positioned directly above the unit as highlighted in the Fig 2 above.
C-Wet plaster hole in the wall.
When the chimney breast front has been finished using wet plastered method and the total
thickness of the bonding plus finishing plaster is less than 12mm. The following method will need
to be applied.
Fit the fire box using the guidance stipulated earlier in the section when fitting the fire box with
none combustible slips. With the fire box secured fit 15mm thick heat resistant board section to
cover the complete front area of the chimney breast up to the forward projected edge of the
firebox frame. Please note avoid any board joints directly above the unit.
15mm heat
resistant board
Board