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3.2.2. Installation of Burley Magiglo Elite 16” Models (only) into a
125mm (5”) Class 2 Metal Flue system
16” Elite Thermobox pack incorporating Trim Switch control should not be
installed on a 5” (125mm) flue system due to increased switch temperatures
caused by the reduced flue flow.
Burley Magiglo Elite 16” models may be installed into a flue system where the minimum
dimension of the flue is 125mm, provided that the following criteria are met:
1. The flue must have a minimum equivalent height of 3 metres (10ft).
2. All metal flues must comply with the requirements of BS EN 1856 “Chimneys -
Requirements for metal chimneys - System chimney products”.
3. Any metal flue box must comply with BS 715 and have minimum dimensions as shown in
Figure 31
. There must be a minimum of 50mm clearance from any combustible material;
alternatively the box may be insulated with 25mm Rockwool or equivalent. The top of the
box must be insulated with 25mm Rockwool or equivalent.
Where minimum and maximum dimensions are shown, these must be adhered
to. These are examples only, and may not accurately represent your particular
installation.
On completion, the installation must be thoroughly tested for spillage using a
smoke match as detailed in the Commissioning section of the Installation
instructions.
3.2.3. Installation Example using Metal Flue Box
(16” Elite 6.9kW Models Only)
PROPRIETARY
FIRE SURROUND
25mm INSULATION
300mm
min
HEARTH
125mm
TWIN WALL
METAL FLUE
min 90mm
( E.G. MARBLE)
FALSE CHIMNEY
BREAST
TWIN-WALLED
METAL FLUE
BOX
260mm
Maximum
Figure 30
125 mm MIN
5
8
5
m
in
375
6
7
5
Figure 31 – Minimum Dimensions of Metal Flue Box
