Clearances Reduction To The Walls And The Ceiling; Heat Shield Construction Rules - Drolet DB04800 Installation Manual

Clearances Reduction to the Walls and the Ceiling

It is often desirable to reduce the minimum clearances of installations by placing the appliance closer
to the walls to use less floor space. It is possible to securely reduce the minimum clearances by
permanently installing a heat shield between the appliance and the combustible material. The rules
applying to heat shields are sometimes complicated. These rules should be read and carefully followed.
Note that there could be slight regional differences in the clearance reduction rules. Check with a
building or fire inspector before starting.

Heat Shield Construction Rules

• Adhesives used in the shield construction must not inflame nor lose their adhesive properties to the
temperature that will be reached.
• The assembly hardware must allow a complete vertical ventilation.
• The assembly hardware that penetrates in the combustible material from the screen surface can
only be used on the edges of the screen.
Clearances Reduction Percentages Table
Screen types
Sheet metal, thickness 24 ga minimum (0.61mm)
spaced from the wall at least 25 mm (1 in)* by non
combustible spacers.
Ceramic tiles or from a non combustible equivalent
material placed on a non combustible panel spaced
from the wall at least 25 mm (1 in)* by non combustible
spacers.
Ceramic tiles or from a non combustible equivalent
material placed on non combustible panels covered
with sheet metal at least 24 ga (0.61mm) thick
spaced from the wall at least 25 mm (1 in)* by non
combustible spacers.
Brick, spaced from the wall at least 25 mm (1 in)* by
non combustible spacers.
Brick, in front of a sheet metal with a thickness at
least 24 ga (0.61 mm), spaced from the wall at least
25 mm (1 in)* by non combustible spacers.
* In Canada this space can be 21 mm (
Installation manual - Outback Chef Wood Burning Cookstove
Clearances reduction percentages
Sides and back
Can/
USA (%)
/ ")
7
8
allowed
Top (ceiling)
USA Can/
min. USA (%)
67 12" 50
50 18" 33
67 12" 50
50 18" N/A
67 12" N/A
USA
min.
18"
24"
24"
N/A
N/A
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