Harman 300i Wood Insert
8
For Installation In Masonry Fireplace Only
3-90-300101
Harman® • 300i Wood Insert Owner’s Manual_R13 • 2010 -___ • 04/15
Floor Protector / Protecteur De Sol
FLOOR pROTECTION MUST
ExTEND UNDER THE INSERT.
NEvER bLOCk THE AIR
INLETS AT THE FRONT OF
THE INSERT bASE.
18"- 457mm
18"- 457mm
25-1/2" / 648mm
flush hearth or raised hearths less than 6" (152mm) -
The masonry hearth must measure a minimum of 12-
1/2" (318mm) from the face of the fireplace opening.
the
insert may not overhang the masonry hearth.
For raised
hearths less than 6" (152mm) in height, floor protection
meeting a minimum 2.02 R-value, must be installed in front
of the masonry hearth and may not exceed the height of the
masonry. If the masonry hearth is flush with the combustible
floor, floor protection must be placed under the insert,
extending to the required distance. It is not permissible
to place a floor protector in front of the insert base, as it
will block the air inlets and create a safety hazard. Floor
protection for these examples must be a minimum
of R=
2.02
Less Than 6" (152mm)
R = 2.02
Masonry fireplace requirements
1. The chimney must be at least 15 feet high but not more
than 33 feet high.
2. This room heater must be connected to; 1) a chimney
complying with the requirements for Type HT in the
Standard For Chimneys, Factory Built, Residential Type,
and Building Heating Appliance, UL103 or 2) a code
approved masonry chimney with a flue liner.
3. The entire fireplace and chimney must be clean and in
good condition. Any damage must be repaired before
installing the insert. A stainless steel liner must be installed
if the tile liner of the masonry chimney is damaged.
4. The fireplace and chimney must meet local building codes.
THE FIREpLACE FLUE DAMpER MUST bE REMOvED
OR LOCkED IN THE OpEN pOSITION.
Masonry direct connect Installation
This method is less expensive than a full re-line. However,
you'll need to check with your local codes to be sure that this
is an acceptable installation method, as most municipalities
require a full liner. Hearth & Home Technologies also
recommends the installation of a full liner.
The connector pipe must be made of stainless steel and be
rated for use with solid fuel burning appliances.
A steel block-off plate (not supplied) is used to seal off the
damper opening and allow the chimney connector to pass
through and extend beyond the first flue tile.
Kaowool, mineral wool or other non-combustible insulation
is recommended above the plate to reduce the possibility of
condensation.
A chimney cap is recommended to prevent the insulation
from being exposed to rain or moisture.
An external chimney can be no more than two times the
cross sectional area of the appliance flue outlet, or 56
square inches. If larger, an approved chimney liner of 6" or
7" diameter must be installed. Likewise, an internal chimney
can be no more than three times the cross sectional area of
the appliance flue outlet, or 84 square inches. If it is larger,
an approved chimney liner of 6", 7", or 8" diameter must be
installed.
Masonry positive connect Installation
This method is recommended, especially if the existing
liner is damaged beyond repair, or for chimneys that have
historically had low draft or smoke spillage problems. This
stainless steel liner, listed to UL-1777, can be rigid or
flexible with a chimney cap and top sealing plate or flashing
installed. Do not mix and match chimney components. Use
only materials or components from the same manufacturer,
that are designed to be used in conjunction with each other.
Follow manufacturer's guidelines for attaching and securing
each venting component.
do not connect to any aIr dIstrIbUtIon dUct
or systeM
