Clearance Requirements; Hearth Requirements; Fireplace Clearances - Jøtul GI 450 DV Installation And Operation Instructions Manual

Clearance Requirements

The following clearances and hearth specifications are
the minimum requirements for installing the GI 450
Katahdin Insert into a solid fuel-burning fireplace. See
figs. 5 through 8.
A combustible surface is anything that can burn
(i.e. sheet rock, wallpaper, wood, fabrics etc.). These
surfaces are not limited to those that are visible and
also include materials that are behind non-combus-
tibles.
If you are not sure of the combustible nature of a
material, consult your local fire officials. Remember,
"Fire Resistant" materials are considered combustible;
they are difficult to ignite, but will burn. Also, "fire-
rated" sheet rock is considered combustible.
Always maintain the proper clearances to allow for
the proper flow of ventilation air around the insert.

Fireplace Clearances

Measure clearances from the center and finished floor
of the fireplace opening.
A = 40" (1016 mm) to a Side Wall, (any combustible
surface that extends more than 1 1/2" from the
fireplace face)
B = 22" (559mm) to Side Trim that extends 1 1/2" or
less from the fireplace face. If the side trim extends
more than 1 1/2" from the fireplace opening then Side
Wall clearance applies.
C = 36" (867mm) to Top Trim that extends 1 1/2" or less
from the fireplace face.
D = 38" (915mm) to a Mantel that extends no more
than 14 1/2" from the fireplace face.
NOTE: MANTEL AND TOP TRIM CLEARANCES ARE
NOT AFFECTED BY THE USE OF THE 2" RISER BAR.
A
Figure 5. Fireplace clearances to combustible materials.
10

Hearth Requirements

Flush Hearth: requires a non-combustible hearth in front
of the fireplace that extends a minimum of 18" (457mm)
and is a minimum of 32" (813mm) wide.
Figure 6. Flush
hearth dimensions
Raised Hearth: A raised hearth that is at least 6" high
requires a non-combustible hearth in front of the fire-
place that extends a minimum of 12" (305mm) from the
fireplace face and is a minimum of 32" (813mm) wide.
NOTE: USE OF THE 2" RISER BAR DOES NOT EFFECT THE
HEARTH REQUIREMENTS LISTED ABOVE.
D
C
B
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Hearth must be minimum 6" high to
extend only 12" in front
18"
32"
Figure 7. Raised
hearth dimensions
12"
6"
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