Harman 300i Installation instructions
R2
“Ce manuel est disponible en Français sur demande”
#3-90-300101
Harman 300i Wood Insert
3
For Installation In Masonry Fireplace Only
Please read this entire manual before you install and use your new
wood burning insert. Failure to follow instructions may result in
property damage, bodily injury, or even death.
352 Mountain House Road
Halifax, PA 17032
Hearth & Home Technologies
disclaims any responsibility for, and
the warranty will be voided by, the
following actions:
• Installation and use of any damaged appliance.
• Modication of the appliance.
• Installation other than as instructed by Hearth &
Home Technologies.
• Installation of substitute materials or replacement
parts not approved by Hearth & Home Technologies
• Operating appliance without fully assembling all
components.
• Do NOT Overre.
Model:
Tested & Listed By:
Report #:
Tested to:
Harman 300i Wood Insert
4
For Installation In Masonry Fireplace Only
The Harman 300i meets the U.S. Environmental Protection Agency’s emission limits for wood heaters
sold after July 1, 1990.
SAFETY NOTICE: IF THIS WOOD INSERT
IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT.
FOR YOUR SAFETY, FOLLOW THE INSTALLATION DIRECTIONS.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS
AND INSTALLATION INSPECTION REQUIREMENTS IN YOUR AREA.
Weight 526 lbs
Flue Size 6 inch
Log Length Recommended 20" Maximum
Heating Capacity 1500 to 3000 sq. ft.*
Average Emissions 1.1 Grams Per Hr.
Emissions on Low 0.08 Grams Per Hr.
Blower Size 2 @ 120 cfm each
41" / 1042mm
40" / 1016mm
28"
711mm
Specications - Harman Model 300i
Harman 300i Wood Insert
5
For Installation In Masonry Fireplace Only
Air Control
Lever
Viewing
Glass
Flue pipe
adapter
Bypass Damp-
er Control
Door
Latch
The Safety/ Certication label is attached by a chain
under the ash lip. The label includes the appliance
serial number and important safety information.
Record the number here for future reference.
Andirons
Surround Top
Surround Side
Report #/ Raport # 135-S-18b-6.2
Test Date: July 2010
Tested to / Testé à: UL1482-10, UL 737-07 and ULC S628-00
Not Approved For Use in Mobile/Manufactured Homes
This appliance is also approved for installation into a shop.
“PREVENT HOUSE FIRES”
Install and use only in accordance with manufacturer’s installation and operation
instructions and local codes. In absence of local codes, installation must
meet minimum requirements of NFPA 211 in USA. Refer to manufacturer’s
instructions and local codes for precautions required for passing chimney
through a combustible wall or ceiling.
Flue connector pipe must be 6” diameter, minimum 24 MSG blue steel. Chimney
must be factory built 103HT or masonry construction with a tile liner.
Do not burn coal.
Electrical Rating 115 VAC, 60Hz, 1AMP Maximum
Route power cord away from unit.
Replace glass only with 5mm ceramic, available from your dealer.
Do not obstruct airow under the appliance.
B
C
D
Conforme à UL1482-10,
UL737-07 et ULC S628-00
Date d’essai: Juillet 2010
Cet appareil est également homologué pour être installé dans un atelier.
N’installez et n’utilisez cet appareil que selon le mode d’installation et le mode
d’emploi du fabricant et les codes locaux. En l’absence de codes locaux,
l’installation doit au minimum être conforme aux exigences de la norme NFPA
211 aux É.-U. Voir dans les recommandations du fabricant et dans les codes
locaux les précautions quant au passage d’une cheminée à travers un mur
ou un plafond combustible.
Le tuyau de raccord à la cheminée doit être d’un diamètre de 15,25 cm (6 po),
au minimum en acier bleu 24 MSG. La cheminée doit être en métal 103HT
d’usine ou construite en maçonnerie.
Ne chauffez pas
TROP. Si l’appareil ou le raccord de cheminée rougit, c’est que le feu est trop
puissant. Éloignez le cordon électrique de l’appareil.
Risque de décharge électrique. Débranchez la prise avant tout
entretien. Pour plus de détails, consultez le mode d’emploi.
Ne remplacez le verre que par du verre céramique de 5 mm à obtenir de
votre détaillant.
L’appareil doit être installé avec ses pieds xés. N’obstruez pas le passage
d’air sous l’appareil.
Risque d’incendie ou d’explosion. Ne brûlez pas d’ordures,
d’essence, d’huile de vidange ni aucun autre liquide inammable.
Risque de la amme ou fumée déversement, le combustible
chargement porte doit être complètement ouverts ou fermés pour l’opération.
Gardez le carburant et les matériaux combustibles
en dehors des dégagements prescrits.
Inspectez et nettoyez fréquemment les conduits et la cheminée.
008
Floor Protector / Protecteur de plancher
8” / 200 mm
18” / 450 mm
8” / 200 mm
C
D
B
Location Inches Millimeters
Location Inches Millimeters
8 200
Component Locations
Harman 300i Wood Insert
6
For Installation In Masonry Fireplace Only
FOR USE IN THE U.S. AND CANADA
Before you install and operate your 300i woodburning
insert, please read the entire contents of this
manual. Pay particular attention to the explanation
of draft and its effect on insert performance in
the Installation section. By following the installation
and operating guidelines, you will ensure proper draft
and gain maximum efciency and enjoyment from your
insert.
Your insert burns wood very efciently. Here are
some guidelines concerning log size and moisture
content that will help you obtain the best performance.
Select hardwoods if possible, as they are heavier
and contain more heating capacity (BTU’s) per load
than do softwoods. Wood should be split and stored
under cover for “seasoning", a year is recommended.
Your insert is not an incinerator-do not burn garbage,
painted or treated wood, plastic, or other debris.
Keep the area around the insert free from clutter.
Keep all combustibles, including fuel, beyond the
code-required clearance distance (48" or 1215 mm in
the U.S., 1525 mm or 60" in Canada). Never store fuel
in front of the insert where it could interfere with door
operation, safe loading, and ash removal
As you begin to operate your insert at higher
temperatures, you will notice a “hot” or unpleasant
smell; this is just the paint going through the curing
process, and will disappear after a few res.
Your insert has a large glass-paneled door for
loading and re viewing. To open the glass door, lift
the handle upward and pull open; to close the door,
push the door closed, and press down on the handle
to latch.
The door must be closed while the insert is in
normal operation, and the gaskets routinely examined
for wear and replaced when necessary. Good door
seals are important for maintaining control of the
insert. Operating the insert with the door inadequately
sealed, could create a serious over-ring condition
(discussed later in this section).
The glass used in your insert is manufactured to
exact standards to withstand the high heat of the re.
Like all glass, it must be treated with common sense
and care. Never abuse the glass by slamming the
door shut or striking the glass with a heavy object.
Do not clean the glass while it is hot. If the glass
is broken or damaged, do not operate the insert
until it has been replaced (See instructions in the
Maintenance section.)
To operate as a replace, open the damper and
keep it open. Next, open the door and place the
optional screen (part number 3-40-06960) over the
door opening. Check for smoke spillage into the
room. If smoke is escaping into the room, remove
the screen and close the door. Always wear gloves
when placing or removing the screen.
The andirons keep the fuel from coming in direct
contact with the glass, and keep hot coals and
embers from spilling out while reloading. Never build
a re directly against the glass. Always keep the fuel
load behind the andirons.
Do not use a grate or otherwise elevate the re.
Build the re directly on the insert's brick oor.
Harman 300i Wood Insert
7
For Installation In Masonry Fireplace Only
Controls
Two important controls - the damper bypass handle and the
air control lever regulate the operation and output of the stove.
To open the front loading door, you must open the damper
bypass, or smoke will spill into the room. In this mode of
operation the combustion gases go directly from the main
combustion chamber to the ue collar and exit into the
chimney.
Lift upward on the damper handle to open the bypass
damper and push down to close it.
NOTE: The bypass damper must be open for
smokeless loading.
Damper Closed
Damper Open
The Combustion Process
Combustion in the Harman 300i is precisely controlled
and is best explained in two parts.
During a wood re, combustion air enters at the bottom
front of the stove where it travels upward through channels
at either side of the front door. From the manifold located
above the front door, it is directed into the rebox as a sheet
of air owing between the glass and the wood. This concept
helps to keep the glass clean, while providing the oxygen
needed to sustain burning. This is what is known as "Primary
Combustion".
Additional air enters at the bottom rear of the stove body.
Some of this air enters through holes in the rear bricks where
it invigorates the re at the rear of the rebox. The remaining
air is delivered into the "Firedome" combustion package
where it combines with the heated exhaust gases. This re-
burning of the smoke is known as "Secondary Combustion".
During combustion, the burning of wood proceeds
through several stages. The initial or evaporation stage is
where the moisture in the wood is driven off in the form of
steam. A second stage is where the volatile gases contained
in the wood are released and burned. This represents most of
the wood's heating capacity. The nal stage is the charcoal
stage where the charcoal burns the remaining heat content
in the wood fuel. Ash remains after the burning is complete.
Within the primary rebox, two or more of these stages of
combustion are occurring at once.
Never build a re directly against the glass. Always
keep the fuel load behind the andirons.
Harman 300i Wood Insert
8
For Installation In Masonry Fireplace Only
Building and Maintaining the Fire
Begin with the bypass damper open, and the air control
lever at the maximum setting, all the way to the right.
Start with a bed of crumpled paper and kindling sized about
nger width; place several 1" - 2" (25mm - 50mm) split
pieces of dry wood on top of the kindling, followed by a
few 2" - 3" (50 mm - 80 mm) split pieces. Lay the wood
in a crossed pattern to allow maximum air ow. Ignite the
paper and close the loading door. Allow this start-up re to
burn for a few minutes, keeping the bypass damper open.
Add about ve more pieces of wood in the 2 to 3 inch (50
- 80mm) size range, making sure that the fuel bed is all the
way across the rebox and staggered to allow airow. Close
the door and allow this fuel to burn a few minutes.
Add increasingly larger pieces of wood to the re until you
have a thick bed of hot embers, approximately 2 to 3 inches
deep at the back, and at least an inch deep at the front. You
must have this charcoal bed established before you close the
bypass damper.
Providing you have the charcoal bed described above, close
the bypass damper by pushing downward on the handle.
This will begin the highly efcient mode of operation where
the exhaust gases get re-burned in the secondary combustion
package. If you cannot achieve a charcoal bed within the
rst 15 to 20 minutes, your wood is likely too wet, and you
may need to burn the re longer and/or hotter to compensate
for the extra energy needed to drive out the moisture.
If, after ve minutes of burning with the damper closed,
smoke is visible coming from the chimney, you probably
do not have the proper coal bed. Open the bypass damper
and continue with the process until a signicant coal bed is
formed.
Air Control shown in the full open
position which is to be used only for
start-up and refueling
Air Control Shown In The
Medium-High Position.
Air Control. The air control slide is located on the ash lip
below the rebox door. Using this lever you will be able to
vary the amount of air delivered to the re, creating a range
of heat outputs. The low heat output setting is with the control
located all the way to the left. The high setting is with the
control located all the way to the right. There are notches
cut into the ash lip to provide reference points for consistent
adjustments. Do not, under any circumstances, alter the
conguration or operation of the air control slide.
Air Control Shown In The
Medium-Low Position.
Harman 300i Wood Insert
9
For Installation In Masonry Fireplace Only
Medium-High Burn Rate - air control set between the
second and third notch. This setting may be used to burn
wood that is damp in order to keep it burning, but will
consume seasoned, dry wood very fast.
High Burn Rate - air control fully to the right. This setting is
for refueling and starting a re. Continuous burning at this
setting will cause premature failure of consumable parts
such as the "FireDome and/or the rebricks. If continuous
burning at maximum setting is needed, the appliance is
too small for the space you are heating, or the wood fuel
is too wet.
Note: At minimum burn rates the glass may get
dirty but will clean itself off again at higher burn rates.
Operating as a Fireplace.
The 300i is tested and approved to be burned with the
front load door open and the damper open. In this mode of
operation you get a true re sound as well as appearance. Due
to the crackling and popping of burning wood it is necessary
to place the optional screen over the door opening. This
prevents sparks from entering the room just like a screen over
a replace. Load only small amounts of fuel in this mode.
The insert is hot while in operation. Keep children,
clothing and furniture away.
Contact may cause skin burns.
Overring
Avoid overfiring your insert. Overfiring is a
potentially hazardous situation which can lead to overheating
of combustible materials, damage to the insert, and in extreme
cases, cause a re. Overring is caused by:
1. Too much air owing through the insert too
quickly.
2. You may have positioned the primary air control
lever too far to the right.
3. You may have, inadvertently, left the damper open.
4. Not keeping up with routine maintenance,
such as checking door gaskets for wear.
Overring results in excessive fuel consumption, and may
cause parts of the insert to glow red. If you notice signs of
overring, reduce the air supply to the re, and review the
Maintenance section in this manual.
Never leave the insert unattended with the door open.
Overring may result.
In the event of a chimney fire, call your local fire
department; make sure everyone is safely out of the house.
Reduce the air intake of the insert as much as possible using
the air control lever; close the bypass damper to further
restrict air ow. Do not throw water on the re; this can cause
insert damage and create an even more dangerous situation.
Have your chimney professionally cleaned and inspected
before resuming burning in your insert.
Always remember to open the bypass damper when you
are loading, this allows the exhaust gases to pass directly
into the ue outlet and reduces the chance of smoke spillage
into the room.
Reloading: Once you have prepared and maintained
a thick charcoal bed, and the secondary combustion is
established, you should be able to reload the stove at any time
by simply opening the bypass damper, then the load door,
add fuel and close the door then the damper. Depending on
coal bed size, load size and moisture content of fuel, you may
need to burn for a short period with the damper open and an
increased air control setting.
Removing Ashes: Do not allow ashes to accumulate more
than 2-3 inches in depth. Excessive ash buildup can restrict
air ow through the rebox. This will prevent proper venting
of exhaust gases.
Ashes should be placed in a steel container with a tight
tting lid. The container of ashes should be moved outside
immediately, and placed on a noncombustible oor or
the ground, well away from all combustible materials,
pending nal disposal. If the ashes are disposed of by
burial in soil or otherwise locally dispersed, they should
be retained in the closed container until all cinders have
completely cooled. Other waste shall not be placed in
this container.
Never use the ash disposal container for other trash. Wood
ash can be added to your garden or compost
Before opening the door for ash removal, open the bypass
damper. Using a re rake, scrape the hot coals to one side of
the rebox and the ashes to the other. Scoop the ashes out into
the metal container as described above. Once the majority of
ashes are removed, spread the hot coals back out across the
bottom of the rebox and add the appropriate sized fuel to
retain the re. Close the door before taking the ashes outside
for safe disposal.
Blower.
To regulate the speed of the convection blowers, adjust
from low to high by turning the knob located on the blower
cord. The blower speed should be matched to the air control
lever setting.
When the air setting is low, the blower should always be
at the minimum setting. At higher settings, above the rst air
slide indicator notch, the blower may be set to your desired
comfort level. Be sure that the blower cord does not run under,
over, above or in front of the insert.
The following guidelines for air settings can be used for
wood burning; as you become familiar with your insert, you
will know which settings best heat your home.
Minimum Burn Rate - air control fully to the left.
Medium-Low Burn Rate - air control at or below the rst
notch.
Harman 300i Wood Insert
10
For Installation In Masonry Fireplace Only
Like all ne equipment, your insert requires some
routine maintenance and inspection. Follow the
guidelines in this section to guarantee safe and ef-
cient operation.
The insert’s exterior surface should be dusted peri-
odically with a soft cloth. For more thorough cleaning,
wait until the insert is cool before using a damp cloth
to clean any blemishes.
If the door needs to be cleaned, wait until the insert
is completely cool, then use a sponge, soap and water
to gently remove dirt and stains. Before relighting the
insert, remove all soap residue and wipe dry.
To avoid a rust buildup on the inner surfaces of the
controls, work the controls back and forth several times
during the summer, or any prolonged period when you
are not using your insert.
The inside of the re chamber should be examined
for damage to the refractory lining material, or bricks. If
any of these parts have been damaged, replace them
only with Harman supplied replacement parts.
Sometimes it will be necessary to clean accumulated
ash from the glass surface; allowing this ash to remain
on the glass for long periods can result in “etching” due
to the acidity of the ash. Any creosote which accumu-
lates on the glass should burn off during your hot res.
Never clean the glass while it is hot, and do not use
abrasive substances. Wash the surface with cool
water, and rinse thoroughly. You may wish to use
a nonabrasive cleaner specically designed for use
on stove glass. In any case, dry thoroughly before
relighting your insert.
The viewing glass is a specially designed 5 mm
ceramic material. If the insert’s glass is cracked or bro-
ken, you must replace it before operating your insert.
Remove pieces carefully. Replace the glass only with
Harman supplied replacement glass, part # 3-40-06932;
do not use substitutes.
To replace the glass panel, you will need to remove
the door. To do this, open the door, lift it straight up and
place it face down on a at surface.
Carefully remove damaged glass, gasket material,
and hold down clips (set aside).
Referring to the diagram, note how the various com-
ponents of the door system t together. Lay the load
door face down on the at surface. Install the self ad-
hesive 1/4"” gasket material around the front face of the
glass. Note: This glass has a special IR coating on one
side. This coating must be to the of the insert.
The coated side has a label on it. Do not remove the
label before installing the glass. Remove label before
burning the unit. If the label has been removed, you can
determine which side has the coating by using an OHM
meter. The side with the coating will show resistance.
Set the glass panel and gasket gently onto the
door. Install the hold down clips and tighten with bolts
as shown. Reinstall door on insert.
Door
Glass
Hold Down
Clips and Bolts Glass Gasket
Handle glass with care.
• Avoid striking, scratching, or slamming glass.
• Do NOT Clean Glass When Hot.
• Do NOT use abrasive cleaners.
• Inspect gasket, replace if necessary.
Harman 300i Wood Insert
11
For Installation In Masonry Fireplace Only
Gaskets are used at strategic positions for controlling
the path that incoming and outgoing air and gases take
through the insert. You must check these gaskets from
time to time, and replace them when necessary. You
can test the seal by closing the component onto a piece
of paper. When closed, the paper should not pull out of
the seal without resistance. The gaskets are made of
berglass of different sizes (obtainable from your Harman
dealer) and are xed in place with a high temperature
gasket cement. To change a gasket, rst remove the worn
berglass and clean the area with a wire brush. Also
clean any other surfaces that come into contact with the
gasket. Place a small bead of cement in the area under the
gasket, then press new gasket material into the channel;
do not overlap the ends. Seat the gasket rmly by applying
pressure when possible; for example, after changing the
door gasket, close the door. Allow the cement to dry before
using your insert.
Gaskets are located on the door and between the
damper and the damper frame.
After a period of time, you may nd that the front
door does not close as rmly as when your insert was
new. This is mostly due to a natural compression of
the gaskets. To adjust the latch, loosen the two bolts,
and bump
the retainer
back.
Adjust as
necessary
to acheive a
good seal.
When wood is burned slowly, it produces tar and other
organic vapors, which combine with expelled moisture
to form creosote. The creosote vapors condense in the
relatively cool chimney ue of a slow burning re. As a
result, creosote accumulates on the ue lining. When
ignited, this creosote makes an extremely hot re.
The FireDome Combustion system cuts creosote to
almost nothing when properly burned with dry seasoned
wood.
The chimney connector and chimney should be
inspected at least once every 2 months during the heating
season to determine if a creosote buildup has occurred.
Checking your chimney and chimney connector more
frequently, especially while you are getting used to
your insert, is recommended. To inspect this system, let
the insert cool. Using a ashlight and mirror, check the
interior of the chimney connector, and the chimney itself.
If creosote has accumulated (3mm or more) it should be
removed to reduce the risk of a chimney re.
To clean deposits from the surface of the connector,
open the bypass damper to prevent debris from falling
into the FireDome, and clean using the appropriate
brush. When cleaning the stainless steel connector, it is
recommended to use a non-metal brush.
To clean the chimney, use a specially designed
brush sized to t your particular ue opening, or call an
established chimney cleaning service. It is recommended
that you have your chimney professionally cleaned and
inspected annually. Any cracks or damage should be
repaired before further use of the insert.
Occasionally, it will be necessary to remove the insert
to inspect the appliance and the replace. To remove
the insert, you will rst need to remove the two bolts that
secure the ue adapter to the top of the insert. Slide the
insert out of the replace for inspection. Have any cracks
or damage repaired before further use of the insert.
Do not burn any fuel other than wood, such as charcoal,
which can cause increased carbon monoxide production
or overring. Never use highly volatile substances in your
insert, such as gasoline, which could cause an explosion.
When solid fuels are burned completely, they produce
water and carbon dioxide. However, in long slow burns, a
substantial amount of carbon monoxide may be produced.
If allowed to build up, carbon monoxide (which is odorless)
can prove fatally poisonous. Proper ventilation and draft
will prevent this from happening. If you smell smoke,
increase the air control lever setting, and thoroughly
ventilate your dwelling. During future burns, be careful not
to overload the insert with fuel, so you will not be tempted
to constantly operate at a low air control setting.
Other causes of poor draft are icing, exhaust fans, and
room air starvation, which may occur in tightly constructed
homes. If your insert is sluggish and you get an occasional
odor, check these possibilities and increase the air ow in
your home. Dryer vents and other appliances operating
in close proximity to the insert may also create negative
pressure.
Always provide a source of fresh air to the room when
the insert is operating.
The blowers on your insert require very little
maintenance. You should, however, keep the air inlets
and the motors and fan blades free of dust and pet hair.
Harman 300i Wood Insert
12
For Installation In Masonry Fireplace Only
A
BC
D
E
Inches Millimeters
Minimum Width 28.5
24
18
Minimum Depth
Minimum Height*
Minimum Hearth Height**
Minimum Hearth Depth
6
12.5
The depth of the masonry hearth must measure a
minimum of 12.5 inches (318 mm) from the face of
the replace opening, to support the insert body.
Depending on the overall depth of the hearth, additional
oor protection may be necessary. If the depth of the
hearth measures 25.5 inches (648 mm) or more, from the
replace facing, no additional oor protection is needed. If
the hearth depth is less than 25.5 inches (648 mm), oor
protection must be installed.
Floor protection in front of the raised hearth must be a
minimum 3/8" (9.5 mm) of 0.84k material. An R value of
0.45 or higher is also acceptable. The standards call for
oor protection to extend a minimum of 18 inches (457
mm) in front of the appliance door opening, and 8 inches
(200 mm) to each side.
8"
200 mm 18" (457mm)
TOP VIEW
8"
200 mm
18"-457mm
18"-457mm
25.5"- 648 mm
25.5"- 648 mm
724
457
610
152
318
Harman 300i Wood Insert
13
For Installation In Masonry Fireplace Only
The insert bottom is equipped with rollers to aid in
moving. There are two stationary rollers toward the rear
of the appliance, and one engaging roller in the front.
To engage the front roller for movement, you'll rst
need to remove the lower base cover. As shown above,
the cover is installed with a screw at each end of it.
Remove these screws using a 5/16 socket or driver.
Slide the cover toward the front and set aside.
To engage the roller; begin by lifting the roller up
and forward in its brackets. This will get the roller
in its ready position. Lift the front of the insert body
approximately 1/4 inch. If needed, the front leveling
bolts can be tightened in to lift the insert. With the body raised,
pull the roller down and hold it forward to lock it in the down
position. You will need to hold the roller into place while the insert
is lowered.
Once the insert is in place, lift the front of the body approximately
1/4 inch and the roller will disengage when you lower the body.
It is up to you if you want to raise the roller and lock it in to the
disengaged position.
Lower Base
Cover
Front Roller
Leveling bolt
Locked position
Ready position
Roller
Floor Protector / Protecteur De Sol
18"-457mm
18"- 457mm
25.5" / 648mm
The masonry hearth must measure a minimum of 12.5" (318 mm) from the face of the replace opening.
For raised hearths less than 6 inches (152 mm) in height,
oor 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 ush with the
combustible oor, oor protection must be placed under the insert, extending
to the required distance. It is not permissable to place a oor 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” (152 mm)
R = 2.02
Harman 300i Wood Insert
14
For Installation In Masonry Fireplace Only
The Bottom Hole is Threaded
Standard Surround #1-00-300130
Oversize Surround #1-00-300134
Custom Surround #1-00-300130-SPL
The surround is made up of six (6) pieces;
• Left Side
• Right Side
• Top
• Top cap
• (2) Support brackets
Begin by installing the support brackets on each end of the
top panel as shown. Notice the bottom hole is the one that
is threaded.
Next, install the top panel by inserting the
four (4) studs through the holes in the n on
the insert. Secure with the provided nuts and
a 11/32" nut driver.
Place the top cap down onto the top, aligning
the two (2) studs with the holes in the top
panel. Secure from underneath with two (2)
nuts.
Install the side panels as shown at left using two button-head
screws at the top, and one self-tapping (Tek) screw at the
bottom.
Harman 300i Wood Insert
15
For Installation In Masonry Fireplace Only
The blowers are already mounted to the insert for installer
convenience. Each blower is secured to the insert body with three
screws, as shown.
First, make a determination of which side you'll want the power
cord coming from. On the determined side, install the short ground
wire with ring terminal to the ash lip below and behind the blower,
using the green screw and tooth washer from the hardware kit.
Notice the high temperature insulated wire pair that runs across the
back of the air chamber beneath the insert, and attaches to each
blower. This is what links the two blowers together. On the side that
you want the power cord, remove the knockout from the surround
panel and insert the power cord connectors through it. Pull the
insulated wire connections from the blower motor and in their place,
hook up the two female connectors from the cord. Next, attach the
two male connectors from the cord to the insulated wire ends that
were removed from the blower. Plug the green wire from the power
cord into the short green wire that you installed. Secure the excess
cord wires behind the surround using the wire ties and install the
cord clamp into the knockout hole in the surround.
Cord Knockout
Hi-Temp Wire
(White)
Hi-Temp Wire
(White)
2 Female
Disconnects
Blower Blower
5 Female
Disconnects
3 Male
Disconnects
Green
White Power
Cord
Speed
Control
Black
6 Inch Green
Ground Wire
Grounded to
Stove Body
300i Fireplace Insert
Blower Wiring Diagram
120 V AC / 60 Hz, 110 Watt , 1.0 Amp Maximum
3-90-300141
Harman 300i Wood Insert
16
For Installation In Masonry Fireplace Only
Clearance is the empty space required between the insert and the nearest combustible surface or object,
such as walls, ceilings, oors, or furniture. Clearance distances may only be reduced by methods listed in the
standard CAN/CSA B365 (Canada) or NFPA 211 (USA). Contact your local building authority prior to attempting
any clearance reduction.
From the front of the insert, the clearance to combustible materials such as furniture, curtains or fuel is; 48 inches
(1215 mm) in the U.S. and 60 inches (1525 mm) in Canada.
The clearance from the top of the insert to a 12 inch (305mm) mantel is 30 inches (762 mm), and to facing trim,
1.5 inches (38 mm) thick, is 20 inches (508 mm).
The clearance from the side of the insert to facing trim, 1.5 inches (38 mm) thick, is 13.6 inches (345 mm) and
from the insert to a side wall is 29.6 inches (752 mm).
Harman 300i Wood Insert
17
For Installation In Masonry Fireplace Only
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 rst ue 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 ue outlet, or 56 square inches. If
larger, an approved chimney liner of 6 or 7 inch diameter must be
installed. Likewise, an internal chimney can be no more than three
times the cross sectional area of the appliance ue outlet, or 84
square inches. If it is larger, an approved chimney liner of 6, 7, or 8
inch diameter must be installed.
Steel Plate
Tile Liner
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 exible with a chimney cap and top
sealing plate or ashing 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.
Sealing Plate
Chimney
Cap
For direct connect and positive connect
installations, ensure that the liner is
securely connected to the insert ue
collar.
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 ue liner.
3. The entire replace 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 replace and chimney must meet local building codes.
Harman 300i Wood Insert
18
For Installation In Masonry Fireplace Only
When installing the insert, you'll need to connect the
ue liner to the insert collar with a minimum of three
fasteners. The ue adapter is removable for ease of
installation in tighter replaces.
Remove the ue collar from the insert by loosening
the two bolts in the top. Attach the ue collar to the liner
using three sheetmetal screws. There are two lines
etched into the top of the ue collar bracket. These lines
should line up with the front of the replace opening.
Keep the height of the bracket at approximately 24"
from the oor. While sliding the insert into the rplace,
guide the ue collar bracket onto the top of the insert.
The bracket will pull itself into position as the stove
body comes back. The bend on the front of the ue
bracket, and the hooks on the rear will secure the ue
collar tightly to the insert. When the ue is in its proper
position, install the two bolts down through the bracket
to secure it.
The door latch handle and the damper handle are
left off for shipping, and will need to be installed. Both
handles and their bolts are packaged in the hardware
bag. The shorter bolt (2-1/4") will be used for the
damper handle, and the longer bolt (2-1/2") is for the
door handle. Insert the bolt through the open end of the
handle, then thread the bolt into the latch or the damper
drive arm. Tighten only hand tight to prevent cracking
of the wooden knob.
09/11
09/11
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
1 Rear Air Jacket 2-00-300103W
2 Combustion Package Cover 2-00-06922L
3 Damper Frame Assembly 1-10-249106
Gasket, 3/8 4 Strand White 30 Ft 1-00-00888
Damper w/Adjuster 1-10-249107
Adjuster w/Hardware Pre 008700287 1-00-249142
Post 008700287 1-00-250153
4 Damper Linkage 1-10-249146
5 Damper Shaft Cover 1-10-06918W
6 Flue Plate 1-10-300122W
3/8 Round White LD PSA Gasket 10 Ft 1-00-00999
7 Linkage Kit 1-00-300101
8 Damper Arm Cover 2-00-300121P
9 Left Rear Side 2-00-300104B
10 Left Blower Bracket 2-00-300106-1B
Screw -HWH TEKS 10 X 3/4 Pkg of 100 3-30-5004-100
11 Blower Left Side 3-21-55416
12 Left Side Shield 2-00-300123P
Screw -HWH TEKS 10 X 3/4 Pkg of 100 3-30-5004-100
13 Load Door Latch Assembly 1-00-06903
Includes Screws, Steel Sleeve Bushing, Latch Adjuster Plate, Reverse Lock Nut
14 Andiron And Extension Kit w/Hardware 1 Set 2-00-05222-1
15 Airslide Cover 1-00-300132
16 Standard Wing
Black 1-00-300130-1
1-00-300130-2
1-00-300130-3
Hardware Pack 1-00-300
17 Lower Base Cover 2-00-300125P
Additional service part numbers appear on following page.
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