Matrix Installation and Operation Manual
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7.4
REDUCING WALL AND CEILING CLEARANCES SAFELY
It is often desirable to reduce the minimum
installation clearances by placing the stove
closer to walls so the installation takes up less
floor space. You can safely reduce the minimum
clearances by permanently installing a shield
between the stove and combustible material.
The rules for safe shields can be complicated, so
read them carefully and follow them exactly.
Note that there may be minor regional
differences in clearance reduction rules so be
sure to check with your building or fire inspector
before proceeding.
7.4.1
SHIELD CONSTRUCTION RULES
See figure
Clearances for shield construction
to match each letter to a clearance.
-
Adhesives used in shield construction must not ignite or lose adhesive qualities at
temperatures likely to be encountered.
-
Mounting hardware which extends from the shield surface into combustibles may be used only
at the edges of the shield.
-
Mounting hardware must allow full vertical ventilation.
A
Minimum clearance between the appliance top and an unshielded combustible ceiling:
890 mm (35 in.)
B
Shield extension above appliance: 500 mm (20 in.).
C
Minimum space behind shield: 25 mm (1 in.). In Canada 21 mm (7/8 in).
D
Clearance along the bottom of shield: minimum: 25 mm (1 in.) and maximum: 75 mm (3 in.).
E
Minimum clearance along the top of shield at ceiling: 75 mm (3 in.).
F
Mounting hardware must not be located closer than 200 mm (8 in.) from the vertical centre
line of the appliance.
G
Edge clearance for ceiling shields to side and back walls: 75 mm (3 in.).
H
Shield extension beyond each side of appliance: 450 mm (18 in.).
