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7.4 Reducing Wall and Ceiling Clearances Safely
It is often desired to use as little space as
possible when installing a woodstove. To do
this, it is possible to reduce the clearances
safely and install the stove closer to the walls
by permanently installing a heat shield between
the stove and the flammable material. The rules
for heat shield are sometimes complicated.
Read
and
apply
the
Some regions may have different regulations.
Consult the local building code or contact the
fire department for restrictions, inspection and
installation requirements in the area.
7.4.1 Shield Construction Rules
− 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.
See figures on next page for shield construction to match each letter to a clearance.
A)
Minimum clearance between the appliance top and an unshielded combustible ceiling: 1180 mm
(46 ½").
B)
Shield extension above appliance: 500 mm (20").
C)
Minimum space behind shield: 25 mm (1"). In Canada 21 mm (⅞").
D)
Clearance along the bottom of shield: minimum 25 mm (1") and maximum 75 mm (3").
E)
Minimum clearance along the top of shield at ceiling: 75 mm (3").
F)
Mounting hardware must not be located closer than 200 mm (8") from the vertical centre line of
the appliance.
G) Edge clearance for ceiling shields to side and back walls: 75 mm (3").
H)
Shield extension beyond each side of appliance: 450 mm (18").
Installation and Operation Manual - Harmony 2.3
instructions
carefully.
Figure 19: Heat shield
Page 33
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