25
Mantle and Mantle Shelf Clearances:
All combustible trim projecting less than one and
one-half inch (1 1/2”) must be kept eight inches (8”) from
the sides of the fireplace opening. All combustible trim
projecting more than one and one-half inch (1 1/2”) must
be kept twelve inches (12”) from the fireplace opening.
(Figure 35)
Parts of the combustible mantle assembly located
along the sides of the fireplace opening, which project
more than one and one half inches (1-1/2”) from the face of
the fireplace, shall have additional clearance equal to that
of the projection.
Parts of the combustible mantle assembly located
above and projecting more than one and one half inches
(1-1/2”) from the fireplace opening shall not be placed
less than twelve inches (12”) from the top of the fireplace
opening.
(Figure 36)
Adjoining Walls:
Side walls and walls to rooms adjoining the Isokern
fireplace installation cannot be closer than twenty four
inches (24”) to the finished fireplace opening.
(Figure 35)
Ceilings:
The minimum clearance from the top of the fireplace
opening to a ceiling is forty-two inches (42”).
(Figure 34)
NOTE:
“Clearance to Combustible Trim” are those
distances required to ensure that a fireplace mantle or
facing will not catch fire. In most cases the distances
should also be adequate to prevent any discoloration or
warping due to heat. However each installation presents
a unique and completely different set of circumstances
involving many variables.
These include paint or finish composition, previous
exposure to heat, methods and quality of construction,
air flow patterns, etc. Because of these variables, the
manufacturer does not guarantee that heat warping or
discoloration will never occur.
Earthcore Industries
08/2017
BVETTO B-Vent Gas Fireplace
Clearance to Combustible Trim
Combustible
Floor System
(non-flammable)
Combustible
Floor System
(non-flammable)
Ceiling
42”
minimum clearance
from opening
to ceiling
Hearth
Extension
(non-combustible)
Adjoining Room Wall
Hearth Extension
(non-combustible)
1‘ 0”
24”
20”
12”
4“ 8“
FIGURE 29
FIGURE 30
FIGURE 31