UK/IRL
7
UK/IRL
6
fig. 1
table 1
Builders opening (mm)
Silva
Spectra
A
Opening width
600
770
B
Opening height
715
710
C
Opening depth (min.)
370
410
Shelf dimensions (combustible)
D
Min. height shelf from top frame
350
350
E
Depth shelf max.
150
150
Dimensions (mm)
F
Box width
578
755
G
Box depth
324
361
H
Box height
700
695
I
Frame width
629
790
J
Frame height
727
720
K
Frame thickness
15
23
L
Position flue (behind frame)
235
262
M
Position flue (from the back side box)
89
99
L
M
F
I
C
B
A
J
E
D
G
K
H
3.1 Builders opening and surround (continuing)
If the builders' opening is constructed of anything other than brick
e.g. stud work and rendered plaster then:
- Ventilate the space above the appliance (min. 1000 mm
2
).
- Always supply the appliance with a DC convection set.
- The plaster of the outside has to be resistant to a high
temperature. Use therefore the plaster materials especially made for
this such as Masterboard or Fibrelux, to prevent discoloring (min.
100 degrees temperature resistant).
If the appliance is to be fitted against a wall with combustible
cladding, the cladding must be removed from the area covered by the
surround.
The minimum height from the top surface of the fire to the underside
of any shelf made from wood or other combustible materials is as
follows:
- For a shelf up to 150 mm deep – Minimum height = 350 mm
(fig. 1).
- If the shelf depth is greater than 150 mm add 50 mm to the shelf-
clearance height for every 25 mm increase in shelf depth.
- Side clearance = Minimum distance from the side of the fire frame
to combustible material = 150 mm.
MEASUREMENTS BUILT IN AND APPLIANCE