18” Inset Taper 010710
2.4.1
INSTALLING THE APPLIANCE (Flue)
18” Inset
Any permanent flue restriction must be removed and any variable dampers locked fully open or removed. If the flue has been used
previously for solid fuel, it MUST be swept PRIOR to installation.
This appliance is suitable for installation into CLASS 1 flues ONLY
.
2.4.2
INSTALLING THE APPLIANCE (Clearance to sides and shelves)
The minimum clearance to any combustible material to the side of the appliance must be 150mm (Fig. 10).
The minimum clearance to any non-combustible material around the perimeter of the appliance must be 75mm.
The minimal clearance to the underside of a 150mm depth combustible shelf from the hearth must be 790mm. Add 12.5mm to this
clearance for every 25mm increased depth of shelf (Fig. 10). A `SHELF CHART’ (Fig. 11) is provided to aid in calculating clearances to
shelves.
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540mm
415/445mm
560/590mm
Hatched area must be non-combustible.
Class 1
A conventional brick or stone chimney with a minimum effective
cross sectional dimension of 225mm x 225mm
A lined flue with a minimum diameter of 175mm having a chair brick
and throat lintel conforming to the current issue of BS 1251 (Fig.
9A).
When an existing refractory chair brick is fitted, the minimum
distance required between the rear of the opening and the front face
of the surround is 215mm. Any remedial work should be carried out
including levelling the base beneath the fire (Fig 9A).
Fig. 9
600mm
790mm
150mm
Add 12.5mm to clearance for every
25mm increased depth of shelf
Fig. 10
802.5
815
827.5
840
852.5
175 200 225
250
275
SHELF CHART
Shelf Depth 150
All dimensions are in MM
Shelf Height 790
Fig. 11
Fire
Max 65mm
surround or lintel.
Min 100mm
Fig. 9A
215mm
