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When installing the insert into a masonry fireplace DO NOT remove any
bricks or masonry, with the following exception; masonry or steel, including
the damper plate, may be removed from the smoke shelf and adjacent
damper frame if necessary to accommodate a chimney liner. Provided that
their removal will not weaken the structure of the fireplace and chimney,
and will not reduce protection for combustible materials to less than that
required by the national building code.
POSITIVE FLUE CONNECTION WITHOUT A FULL RELINE
(USA ONLY)
This unit does not require a full reline (in USA only) when installing
into a masonry fireplace, however, it is recommended to ensure
proper drafting of the appliance. This type of application is not
recommended.
IMPORTANT: Ensure the chimney and firebox are cleaned and free of
all debris, including soot and ashes, before proceeding with this instal-
lation. If it is not clean, soot may be blown into the room through the
unit's blower. Ensure the fireplace and chimney have not deteriorated in
any way. If there is any sign of corrosion or damage in the chimney the
unit can not be installed. This unit can be installed in a masonry fireplace
built to (UBC 37 or ULC S628 standards) or a factory built fireplace (built
to UL 127 or ULC S610 standards).
1. Install the hearth pad. The floor 6" (150mm) in front of the unit and
6" (150mm) to each side of the unit must be protected with a non-
combustible hearth pad.
2. The vent connector from the insert must extend a minimum of 18"
above the chimney seal plate. The chimney seal plate area must be
sealed to prevent the exhaust from the chimney from coming back
into the fireplace and prevent air from the fireplace from entering the
chimney which will affect proper drafting of appliance.
A qualified installer should evaluate the existing fireplace to determine
the best method for achieving a positive flue connection between
the vent pipe or liner and the chimney. Whatever method used must
effectively seal the area to prevent room air passage to the chimney
cavity of the fireplace. A couple examples of Approved Methods of
Achieving a Positive Flue Connection are:
a) Secure a seal-off plate (i.e. 22-gage sheet steel) in the masonry
fireplace throat using masonry screws.
b) Pack non-combustible material (i.e. rockwool) around the vent pipe
or using a flue adapter.
3. Set leveling leg to approximate height.
IMPORTANT: The chimney seal plate must be removed for the annually
chimney cleaning as ash will build up on top of the plate.
Be aware that this type of application may have a negative effect on
performance not covered under warranty.
Greenfire Pellet Insert Technical Manual
When installing the fireplace insert into a zero clearance fireplace, where
allowed by local codes, DO NOT cut or modify any factory firebox parts.
If the fireplace insert does not fit into a zero clearance fireplace we rec-
ommend you use an Greenfire freestanding model and install as a hearth
mounted unit. Install a 3" (76mm) flex pipe from the stove to the top of
the chimney. Refer to "Hearth Mount Installation".
Top of vent pipe
must be 18"
(45.7cm) minimum
above the chimney
seal plate.
Masonry Fireplace
Figure 29: Masonry fireplace positive flue installation
INSTALLATION
The existing chimney can
not be corroded or
damaged in any way.
Chimney must be completely
sealed with a non-combustible
material and maybe removed
annually for cleaning.
Mantel (8" deep)
Min. 8" from
top of stove
Min. 6"
Floor Protection
Combustible Floor
11
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