Dimensions; Installation; Masonry Fireplace Requirements; Factory-Built Fireplace Requirements - Jøtul C 450 Kennebec Installation And Operating Instructions Manual

139684_Rev_7 / C 450 Kennebec 7 / 17

Installation

Masonry Fireplace Requirements

• The entire fireplace and chimney must be cleaned
and inspected before installation. The system
must meet local building code requirements.
• The structure and components must be free of
any defects such as cracks or broken bricks or
flue tiles. Any damage must be repaired before
installation.
Any joint or gap that may exist between the
hearth extension/fireplace facing and the fire
chamber must be permanently sealed with
medium-duty refractory mortar.
• The chimney must have a clay tile liner or a
stainless steel liner utilizing a positive connection.
• DO NOT REMOVE BRICKS OR MORTAR FROM THE
FIREPLACE OR CHIMNEY STRUCTURE. However,
masonry or steel may be removed from the
smoke shelf and adjacent damper frame area
to accommodate installation of a chimney liner,
provided that their removal will not weaken the
structure of the fireplace or chimney, and will not
reduce protection for combustible materials.

• CHIMNEY HEIGHT:

Minimum - 15 ft. ( 4.57 meters)
Maximum - 33 ft. (10.5 meters)
Minimum Fireplace Dimensions
A: FRONT WIDTH * ..........................27 1/2" (698 mm)
B: HEIGHT .............................................. 23" (584 mm)
C: REAR WIDTH .............................. 25 1/2" (648 mm)
D: REAR HEIGHT ............................. 21 1/2" (546 mm)
E: DEPTH .................................................14" (355 mm)
*
NOTE: Width dimension accommodates clearance for
Surround attachment to the front of the firebox.
E
C
A
Figure 5. Minimum Fireplace Dimensions
6
D
B

Factory-Built Fireplace Requirements

The Jøtul C 450 may be installed into a factory-built
fireplace with the following conditions:
• The factory-built fireplace must be listed per
UL 127 or ULC S610.
• Installation must include a full height, listed
chimney liner meeting type HT requirements
(2100F) per UL 1777 (U.S.) or ULC S635 (CAN).
The liner must be securely attached to the insert
flue collar and the chimney top.
Some liner manufacturers require insulation in
order to achieve a UL 1777 or ULC-S635 listing. Check
with the manufacturer of the liner being used to
determine if insulation is required. Insulation is
recommended particularly if the chimney flue is
located in a chase outside of the building envelope.
• The top plate of the liner system MUST NOT block
the air flow between the cooling walls of the zero-
clearance fireplace air-cooled chimney system.
These cooling walls MUST remain open under all
conditions to maintain proper circulation of cooling air.
• The damper or fireplace opening must be sealed to
prevent passage of room air into the chimney cavity.
• The convection chamber and/or air circulation
louvers of the zero-clearance fireplace MUST NOT
be blocked-off. This requirement may preclude use
of the cast iron surround panels. A custom-built
surround panel system may be used provided it
does not interfere with air circulation through the
convection chamber.
• Alteration of the zero-clearance fireplace
functionality or structure is not permitted; i.e.
firebrick or refractory panels MUST NOT be be
removed to accommodate the fireplace insert
installation. Alteration of the zero-clearance
fireplace is limited to:
a) removal of the damper for liner installation
b) removal of external, nonfunctional trim which
then must be stored within the fireplace for
potential future re-assembly.
• Fireplace Conversion Notice PN 220508 must be
permanently attached to the back of the fireplace.
This metal label is included in the bag containing
this manual.
• Means must be provide to properly support
the front of the insert if it projects from the
fireplace front. The weight of the insert must not
compromise the structural integrity of the zero-
clearance fireplace.
• Means must be provided to remove the insert or
baffle to facilitate cleaning the chimney flue.
• Final approval is contingent on the authority having
local jurisdiction.