Harman Oakwood User manual

H _ ~~~~ _ _ ~
INDEX
~~ ~---~~~~ --- ~--- ~
INDEX
.Introduction 4
Specifications 5
OperationlBuildingaFire 7
Installation 11
Venting 16
Maintenance
25
Options
27
Parts Diagram 28
Parts List
29
Appendix: FloorProtection 30
Warranty
31
Please read this entire manualbefore you install and use your new room heater.
Failure to follow instructions mayresult
in
property damage, bodily injury, or even death.
SAVE THESEINSTRUCTIONS
NOT APPROVED FOR MOBILE HOMES.
HarmanStove Company
352MountainHouse Road
Halifax,
PA 17032
U.S.A.
OakwoodWoodStove 3

~ _ .~~ _ H H~ __ ~_
, INTRODUCTION
Thankyou for purchasing the Harman Oakwood. We are confident that you will enjoy the warmth and conve-
nience
of your Harman Stove for decades to come.
TheHarmanOakwood will heatyourhome while also being multi-funcitonal and visually appealing. When
building your Oakwood we used only the best, precision castings that were designed so accurately that gaskets are used
(instead
of furnace cement) for assembly.
Harman's special FireDome Non-Catalytic Combustion System was created specifically for the Oakwood to
promote clean burning and even heat output. Whatthis equates to is unvarying heatthroughout yourhome over a longer
period
of time without the peaks and valleys of other wood stoves. The FireDome attains Harman's reputation of high
efficiency while saving you the expense associated with catalytic stoves. Top loading makes adding wood easier and
allows the Harman Oakwood to hold more wood than other stoves
of the same size. More wood means longer burn
times. You can view your beautiful fire through the extra large glass
cloor. The glass stays cleaner because of specially
coated glass and the exclusive Harman Air Wash System.
The Harman Oakwood has an ash pan with its own ash door that is used to.remove ashes while the stove is in
operation. This means you can keep a fire all winter
if you desire.
The Harman Oakwood offers a cooking grill that can
be placed inthe top of the stove while in operation. This
allows you to grill steaks and burgers etc. all year long even when the weather is not suitable for outside grilling.
If you
haven't already purchased the cooking grill, you can do so at your Harman Dealer.
Your Harman Oakwood is backed by ourHarman Gold Warranty, which means all material and workmanship is
covered for 6 years, and mechanical items are covered for 3 years.
We are confident that our products are built to our
strict Harman standards, so warranty will rarely
be an issue. .' ,$
Do to the fact thatthe Oakwood is hot while in operation, gloves should ~:'1 worn while tending to the fire.
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4 Oakwood Wood Stove

~ --
I SPECIFICATIONS
-- ~ --
1------26.235"------1\
T
20"
7"
Weight 4401bs
Flue Size 6inch
Log Length Recommended
21" Max
Heating Capacity 2,000 sq.
ft.
Average Emissions 2.32 Grams Per Hr.
Emissions onLow .8 Grams Per Hr.
Outside Airsize 3 inch
The Harman Oakwood meets the U.S. Environmental Protection Agency's emission limits for wood heaters
sold after July
1, 1990.
SAFETY NOTICE: IFTIllSHARMANOAKWOODWOOD STOVE
IS NOT PROPERLY INSTALLED. AHOUSE FIRE MAY RESULT.
FORYOUR SAFETY, FOLLOWTHE INSTALLATION DIRECTIONS
CONTACT LOCALBUll.DINGORFIRE OFFICIALS ABOUT RESTRICTIONS
AND INSTALLATION INSPECTION REQUIREMENTS INYOUR AREA.
OakwoodWood Stove 5

- - ~
SPECIFICATIONS
--~
BypassDamper
Front LoadDoor
Grate
6 HannanOakwood

Always ~ear gloves ~hen ~" " 0" "P-ER A'T"~ "ION ~"~- ~"" ~- "
operating the stove. 1-\
GeneralConsiderations
Draft
Before you install and operate your Oakwwod
wood stove, please read the entire contents of this
manual. Pay particular attention to the;; explanation
of draft and its effect on stove performance in
thelnstallationsection. By following the installationand
operating guidelines, you willensureproperdraftandgain
maximum efficiency andenjoymentfrom your stove.
Fuel Your
Oakwood bums wood very efficiently.
Here are some guidelines concerning log size and mois-
ture content that will help you obtain the best perfor-
mance. Selectdry seasoned wood.
For example, itshould
be checked or cracked on the ends and not exposed to
rain
or extremely damp conditions. Hardwoods are fa-
voredbecause
they areheavier and contain moreheating
capacity
(BTU's) per load than do softwoods. Wood
should
be split and storedundercoverfor "seasoning" - a
year is
recommended~ Your stove is not an incinerator -
do
not burn garbage, painted or treated wood, plastic, or
other debris.
Keep the area around the stove free from clut-
ter. Keepallcombustibles,including fuel, beyondthecode-
required clearancedistance (48"
or 1215 mm in the U.S.,
1525 mm or 60" in Canada). Never store fuel in front of
the stove where it could interfere with door operation,
safe loading, and ash removal.
Do not burn garbage or flammablefluids such
as gasoline,
naptha, or engine oil.
CAUTION:
Always wear fire retardant gloves
when operating the stove.
SAFETY
NOTICE
IF THIS HARMAN OAKWOOD STOVE IS
NOT PROPERLY INSTALLED, OPERATED
AND MAINTAINED, A HOUSE FIRE MAY
RESULT. FOR YOUR SAFETY, FOLLOW
INSTALLATION DIRECTIONS. CONTACT
LOCAL BUILDING
OR FIRE OFFICIALS
ABOUT RESTRICTIONS AND INSTALLA-
TION INSPECTION REQUIREMENTS IN
YOURAREA.
" "
The Stove
Doors Your stove has a large glass-paneled door for
loading and fireviewing, a separate smaller door for re-
moving ashes and a top loading door.
Front Door
Beforeopening, always checkforwood, embers,
or ash that may be ready to fallout of the door.
To openthe glass door, openbypassdamperfirst,
then lift the handle and pull out; to close the door, push
door closed with handle in the open position, then push
handle down to engage the latch.
Ash Door
To open the ash door, lift up the handle and pull
out.
Close the door by pushing in andpushingthehandle
all the way down.
Top Load Door
To openthe top loaddoor, openthe bypass damper
and then open the top load door.
All doors must
be closed while the stove is in nor-
maloperation, andthegasketsroutinelyexaminedforwear
and replaced
when necessary. Good door seals are im-
portantfor maintaining control
of the stove. Never oper-
ate with the ash door open. Operating the stove with the
ash door open,
or with a doorinadequately sealed, could
create a serious overftring condition (discussed later
in
this section).
NEVEROPERATE WITH MORE THAN
ONEDOOROPENATATIME
The glass used in your Oakwood is manufactured
to exact standards to withstand the high heat
of the fire,
but like all glass, it must be treated with common sense
and care. Never abuse the glass by slamming the door
shut
or strikingthe glass with a heavy object. If theglass
isbroken
or damaged, do notoperatethe stove until ithas
been replaced
(See instructions
in the Maintenance section.)
Grates
The Harman Oakwood's unique grate system con-
sists
of one flat bottom grate, and two front andirons.
The
bottom gratehas slots whichallow the ashto fall into
the ash
pan by passing a poker back and forth across the
grate. The andirons keep the fuel from coming into di-
rect contact with the glass,
and keep hot coals and em-
bers from spilling outwhile reloading. Neverbuild a fIre
directly against the glass.
The grates and andirons
must remain in place at all
times.
Do not tamperwithorchangetheconfiguration of
this grate system.
Harman Oakwood 7

~ - ~ ~ ~
I Always~eargloveswhen OPERATION
operating the stove.
The Combustion Process
Combustioninthe Harman Oakwoodis precisely
controlledand is divided into twoparts.
During a wood fire, primary combustion air en-
ters at the bottom front
of the stove and travels up chan-
nels at either side
of thefront door pre-heating it. It then
entersthe manifoldlocated above the front doorwhere
it
is releasedinto the primaryfirebox as a sheet of airflow-
ing between the glass and the wood to support primary
combustion
in thefirebox.
Secondarycombustionair enters the stove at the
bottom rear of the stove and is delivered into the
"Firedome" secondary combustionpackage, and the rear
bricks toprovide a critical additional source
of oxygenat
several locations within the combustion package to sup-
portsecondarycombustionnecessary to achieve and sus-
taincleanburning.
Duringcombustion, theburning
of woodproceeds
through several stages. Theinitial
or evaporation stageis
where the moisture in the wood is driven off in the form
of steam. A second stage where the volatile gases con-
tained in the wood are released and burned. This repre-
sents most
of thewood's heating capacity. Thefinal stage
is the charcoal stage where the charcoal
bums the re-
mainingheatcontent inthe woodfuel. Ashremains after
the burning is complete. Within the primary firebox two
or more of these stages of combustion are occuring at
once.
8 Oakwood Wood Stove
Two importantcontrols -the damperbypass handle
andthe aircontrolleverregulate the operation and output
of the stove.
To open the top or front loading door, you must
openthe damperbypass,
or smokewillcome in theroom.
In this mode of operation the combustion gases go di-
rectlyfrom themaincombustion chamberto the flue col-
larand exit into the chimney.
NOTE: The bypass damper must be open for
smokeless loading. Open the bypass damper
by turn-
ing the handle clockwise while facing handle.
DamperOpen
Damper Closed
Top LoadDoorOpen

~-- - - ~~ - ~~ --
Always~eargloveswhen BUILDING A FIRE
operatmg the stove.
Minimum '~.' i ~ , Maximum
Primary Air .....-- ----,..- PrimaryAir
~------~~------~
Air Control
The air control lever is located directly below the
ash lip
of the stove. Using this lever you will be able to
vary the amount of air delivered to the fire, creating a
range
of heat outputs. The low heat output setting is to
the left, and high is to the far right. Do not, under any
.circumstances, alter the configuration
or operation of the ,
aircontrol lever.
For low bum, slide the air control to the left 2 or 3
notches. For medium bums, use notches 4,5 & 6. Maxi-
mum heat is attained with the air control all the way to
theright. Donot
bum the stoves continuously atthe maxi-
mum setting.
If maximumheat is required day after day,
the stove is too small for the area you are trying to heat.
If yourwoodis notseasonedlong enough or ishigh
in moisture, you mayhaveto adjust the primary air 1 or 2
notches higherto sustain a low bum rate withthe cleanest
possible exhaust.
Building and Maintaining the Fire
Do notuse chemicals or fluids to
start the fire.
Neverusegasoline, gasoline-typelanternfuel, kerosene,
charcoallighterfluid,
or similarliquidstostart or "freshen
up" a fIre in thisheater. Keep all such liquidswell away
from the heaterwhile it is in use.
Building a fire
First open the bypass damper then set the air
control
lever at the maximum heat output setting, all
the way to the right.
Build a bed of paper and kindling; place
several 1 " - 2" (25 mm - 50 mm) split pieces of
dry wood on top, followed by a few 2" -3" (50 mm
- ·80 mm) split pieces; Ignite the paper.
. Allow the fire to bum until a goodcharcoal bed,
2" - 3" (50 mm -80 mm) is formed; close the bypass
damper by turning the damper bypass handle counter-
clockwisewhilefacing thehandle. (You mayneedto leave
theloaddooropen a crackto gettheblaze going properly,
but never leave the stove unattended.)
Add more wood
to create a deeper charcoal base (3" -4",
or 80 mm -100
mm thick); remember to open the bypass damper when
youare loading, This will allowthe exhaustgases to pass
directly into the flue outlet·and reduce smoke spillage
during refueling.
Once the charcoal bed is established you may
add a full load of dry wood. Afteradding the fuel, leave
the damperopen and the air setting atmaximumfor 1 to
5 minutes; close the damper and allow the air setting to
remain on high for an additional 5 to 10 minutes (these
times will vary depending onwhattemperaturethe stove
has reached prior to loading, along with the moisture
content
of thefuel) thenadjustthe airleverforthedesired
heatoutput. .
Reloading: Once' you have prepared and
maintained a thick charcoal bed, you should be able to
reloadthe stove, allow some burning atthemaximum air
settingwith the damper closedabout5-10minutes before
resetting the air control. This depends on coal
bed size,
load size and moisture content
of fuel.
Removing Ashes: Before reloading, empty the ashpan
(rememberto close the ashdoorwhile emptying the pan).
The ashes should be the coolest at this time. Remove
ashes from the fire chamberperiodically byraking apoker
across the bottom grates. 0 k d W d
St n
a woo 00 ove d7

_~ H ~ ~ _ _ _ _ H ~_ ~ _ _ ~
Always~eargloveswhen BUILDING A FIRE
I operatmg the stove.
Never let the ashes build up to over 2" in depth.
Excessive ash buildup can prevent properventing
of ex-
haustgases. Also do
not overfillthe ashpan. Ashbuildup
between the ashpan and the bottom grate can cause the
bottom grate to overheat and wear out prematurely.
The Oakwood was designed to provide access to
the ashpan without the need for opening the main door.
Before opening the ash door and removing the ashpan,
openthebypass damper. Wearingheavyprotectivegloves,
open the ash door and remove the ashpan
by pulling it
forward
by the handle. Close the ash door and damper
bypass before taking the ashes outside for safe disposal.
Ashes should be placed in a metal container with a
tight fitting lid. The closed container
of ashes should be
placed on a noncombustible floor or on the ground, well
away from all combustible materials; pending final dis-
posal.
If the ashes are disposed of by burial in soil or
otherwiselocallydispersed, they should be retained in the
closedcontaineruntil allcinders have thoroughly cooled.
Neveruse the ash disposal cont.ainerfor othertrash.
Wood ash can
be added to your garden or compost.
Overfirin&:
Avoidoverfiringyourstove, a potentiallyhazard-
ous situation which can lead to overheating
of combus-
tiblematerials, damage to the stove, and
in extremecases,
cause a fire. Overfiring is caused by:
1. Too much air
flowing through the stove too quickly. 2. You may have
positionedthe primary aircontrollevertoofar to theright.
3. Inadvertently left the damper open or 4.
Not kept up
withroutine maintenance, suchas checking doorgaskets
for wear.
Overfiringresults
in excessivefuel consumption, and
may cause parts of the stove or chimney connector to
glowred.
If you notice signs of overfiring, reduce the air
supply
to thefire, and review the Maintenance section in
this manual.
In the event
of a chimney fITe, call your local fITe
department; makesure everyoneis safelyout of thehouse.
Reduce the air intake
of the stove as much as possible
using the air control lever; close the bypass damper to
further restrict air flow.
Do not throw water on the fITe;
this can cause stove damage and create an even more
dangerous situation. Have your chimney professionally
cleaned and inspected before resuming burning in your
stove. As youbeginto operateyourstove
at highertem-
peratures, you willnotice a "hot"orunpleasant smell; this
is
just thepaint goingthrough the curingprocess, and will
disappear after a few fires.
10 Oakwood Wood Stove
CAUTION
The stove is hot while in operation. Keep
children, clothing
and furniture away. Contact
tmay cause skin burns.
WARNING
Never leave the stove unattended if either
the ash
or load door is open. Overfiring
may result.

-~- --~ ~ ~ - ~ -~ ~-~- - -~ . ~--
I INSTALLATION
- - ~-
Required Floor Protection (UL)
The Oakwood must have a floor protector with a
k-value
of .84 or higher to meet UL safety standards (un-
lesspurchased withoptionalbottomshield).
In all installations, the areaunder and around the stove
must
be protectedfrom falling ash and live coals. The area
under a horizontal run
of chimney connector must also
be protected. This protector must
be of noncombustible
material, andpositioned as shownin the accompanying il-
lustration. The guidelines for floor protection are as fol-
lows:
In the U.S. the floor protector must be completely
underthe stove,
16" in front of the dooropening, 8" to each
side and
8" to the back. If there are any horizontal runs of
the stove pipe the ash protector must extend 2" on each
side
of the pipes shadow.
In Canada, the ash protectormust extend 18" in front
of the door opening, 8" to each side and extend to the wall
behind the stove.
Clearances
Clearanceis the empty space requiredbetweenthe
stove
or chimneyconnectorto thenearestcombustible sur-
face
or object, such as walls,
ceilings, floors,
or furniture. Clearancedistances may only
be reducedby using methods approvedby either the CAN!
CSA B365 standard (Canada)
or NFPA 211 (U.S.) Con-
tactyourbuildingauthorityfor information
if you areinter-
ested inreducing clearance distances other than those pre-
sented here.
nX G
Parallel versus Corner Installations
A parallelinstallationis onein which thebackand
sides
of the stove are parallel to the walls behind and to the
'side
of the stove. A cornerinstallation is one in which the
back
of the stoveis positioneddiagonally across a corner of
the room. Each installation requires its own set of clear-
ances. Forparallelinstallations, therequired clearancedis-
tances from the stove are:
1) to the side wall, 26" (661 mm);
2) to the backwall, 28" (712 mm).
3)Fromthechimney connectorto the wall,
33" (839mm)
4) Hortizontal pipetotheceiling, 15"(381 mm).
NOTE: Fora vertical chimney connector in a parallel
installation the distance
of the connector to the side wall
must
be 32"(813 mm), due to the required side clearance of
the stoveitself. Fireplaceinstallationsmustmeetthese same
clearancerequirements; specificallyfollow these guidelines
for mantel and trim clearances.
For corner installations, the clearance distances from
the stove are 24"(609 mm) from each corner
of the stove
measured straightbackto the nearest combustible material,
and 32" (813 mm)from the chimney connector
to the walls.
From the front
of the stove, clearance to combustible
materials such
as furniture, curtains, fuel, etc., is: 48"(1220
mm) inthe U.S. and 60"(1524 mm)
in Canada.
Harman Oakwood 11

and
115"*
1--34'!.-
}-
"-
G
~
~ t
I- 22"
II
~
Top Vent to vented out side
wall with 9O"elbow
28" 32"
Top Vent to vented out side
wallwith 90° elbow
21" 25"
25"
21"
Top ventvented outbackwall
with 90° elbow.
34"
22"
21'
Top ventvented outbackwall
with 90° elbow.
24"
32"
21"
*Check with your
localbuildingcodes
for clearance.
protection, etc.

~:2J22"
withtwo 90° elbows
f=iJ~ 31"
o 20"
Rear Vent: ventedoutbackwall
withtwo 90° elbows
31"
~
~
t:J 20"
23"
Rear Vent: ventedoutceil-
ing withone 90° elbow
23"
Rear Vent: vented out ceil-
ing with one
90° elbow
38"
~ f-l4
0 26"
38"
26"
Rear vent ceiling and
sidewall clearances
l"
38"
r-t~
0 26"
*Check with your .
Pipe through 45°elbow out Pipe through 45°elbow out
local building codes
side wall _~si;;;;:d;;;e...;w;.;a~ll~ ___ ...... _______ fo_r_c_le_ar_an_c_e_._ ........
See NFPA 211 for more installation clearance reductions when using USM wall protection, etc. Harman Oakwood
13

1--34"-
""-
(j
:y:
t t
22'!..
I
Top vent ceiling and
sidewallclearances
17" 13"
Top Vent to vented out side
wallwith
90° elbow
17" 13"
34" 17"
Top vent: ceiling and
sidewall clearances with
shielding
Rear Vent: vented
out ceil-
ingwith one 90° elbow with
shieldin
Rear Vent:
vented out
back wall with shielding
27"
19"
Top Vwt withPipe
through ceiling
13"
Top ventvented outbackwall
with
90° elbow. .
34"
o 22"
17"
RearVent: ventedoutbackwallwith
two 90° elbows withshielding
See NFPA 211 for more installation clearance reductions when using USM wall protection, etc.

" ~ ~~ __ H __ _ ~ ~ _ H ~ ~_ ~ H ~ ~~ _ _~ _ ~ ~
INSTALLATION/CLEARANCES
- - - ~
Fireplace Insert Installation -Rear Flue -6"Single Wall Pipe
SideWall
37"
26":""'--I!!!!I---1111
2.75"
NOTICE: Not for use in factory built fireplaces
with hearth weight limitations.
The Oakwood should not be installed into factory
builtfireplace unless the hearth areais designedto take
the maximum weight
of the stove. The Oakwood,
loadedwith woodweighs approximately 500pounds.
Mantel: extends over
3/4" from the wall.
Trim: extends less than
3/4" fromthewall.
If the fireplace floor can hold the 500 lb. Oakwood,
thestove should only beplacedintothefireplace open-
ing to the point that operation
of the damper bypass
control andthe toploaddoor operation is not compro-
mised or unsafe. (See above illustration.)
Installing in front of a fireplace with Mantel
Combustible
22"
16"
Harman Oakwood 15

~ -~ ~ - ~ ~- - ~~
VENTING '
ChimneyComlectors and Chimn,us
Draft Draft is widely misunderstood.
It is important
thatyou, the stove operator, realizethatdraftis a variable
effect, not a given quantity. Stoves and chimneys do not
have draft, yet draft is the key to your stove's perfor-
mance. Draft is aforce, produced by
an operating stove
and the chimney to which
it is attached. It is created by
hot gases rising up the chimney, creating a pressure dif-
ference betweenthe inside
of your home and the outside
air. It continually moves fresh combustion air into the
stove, andhotexhaustgases out
of the stove; withoutthis
constantflow, thefire will go out.
Otherfactors, suchas barometric pressure, winds,
the airtightness of thehome, the total insidechimney vol-
ume, chimneyheight andthepresence
of venting devices
such as exhaust fans also play a role in maintaining an
adequate draft. Low barometric pressures, super insu-
lated homes and exhaust fans
can reduce draft; winds
can play havoc with draft; and too large or too small a
chimney volume cancause reduced
draft due to the excessive
cooling
or not enough room to vent exhaust gases ,j
Introducing outside air directly to the stove may help
remedy a low draft problem. Some signs
of inadequate
draftare smoking, odor, difficultyinmaintainingthe fire,
and low heat output. Overdraft
can be caused by a very
tall chimney even if itis the recommended size, and can
cause overfiring of your stove. Signs of an overdraft
includerapidfuel consumption, inability to slow the fire,
andparts
of the stove or chimneyconnectorglowing red.
It is important that youfollow the chimney guidelines in
this manual, including size, type, andheightto avoiddraft
problems.
When installed and operated according to this
manual, the Oakwood will produce enough hot gases to
keep the chimney warm so that adequate draft is main-
tainedthroughout the
bum cycle.
ChimneyConnectors
In general, following these guidelines willensure
compliancewith allnational and provincialcodes; priorto
beginningyourinstallation,checkwithyourlocalbuilding
codeofficialto checkonadditionallocalregulations which
may influence the design and placement
of your venting
system. The Harman Oakwood
may be installed with
(.6 mm) 24 gauge chimney connector pipe. Size
of the
connectorshould correspondto the size
of theflue collar
opening. Do not use makeshiftcompromises. No part
of
the chimney connector may pass through an attic or roof
space, closet or otherconcealed space, or through a floor
orceiling. Wheneverpossible, avoidpassing the
COnnec-
16 OakwoodWoodStove
tor through a combustible wall; if you must, use an ap-
provedwall pass-through, described laterinthis section.
Assemble the connector beginning
at the flue
collar, with the crimped ends pointing towards the stove
(to keep debris and creosote flakes inside the system).
Eachjoint, including the one to the stove's flue collarand
the
one to the chimney itself should be secured with at
least three sheet metal screws. Screws may be a maxi-
mum of 3 inches apart. A 1-114" (30 mm) overlap is
requiredateachjoint,includingthe flue collarattachment.
No more than two
90 degree elbows shouldbe used,.and
the total length
of connectorshould not exceed 10 feet (3
m). All horizontal runs of connector must have a mini-
mum upward slope of 114"(6 mm) per foot (20 rom per
weter).
Chimney connector should correspond to the size
of the flue collaropening. Do not use makeshiftcompro-
mises. Nopart
of the chimneyconnectormaypassthrough
an attic or roof cemented in place with refractory ce-
ment.
For details on the other three options, refer to the
most recent edition
of the NFPA 211 code.
WallPass-througbs
Occasionally itis necessary to pass the chimney
connectorthrough a combustible wall to reachthechim-
ney. Depending on your local building codes, and the
pertinent provincial
or national codes, there are several
choicesfor accomplishing this safely. Before beginning
yourinstallation, contactlocalofficials, andalso the chim-
neyCOnnector and chimney manufacturerfor specific re-
quirements.
Canada. Three methods are approved by the
Canadian Standards Association. The diagram shows
one methodrequiring an 18"(450 rom) air spacebetween
the connector and the wall.
It allows use of one or two
covers as described
in the diagram. The twoother meth-
ods are described in detail in the current issue
of CAN/
CSA B365, the national standard.
United States In the U.S., the national code is
NFPA 211. Whilemanylocalities adoptthis standard,
be
sureto checkwithlocal authoritiesbefore beginningyour
installation.
The NFPA (National Fire Protection Associa-
tion) permits four methods for passingthrougha combus-
tible wall. A commonly used method to pass through a
wall directly to a masonry chimney is tocleara minimum
12"(300 rom) around the entire chimney connector, and
fill it with brick masonry which is at least 3.5"(90 mm)
thick. A fireclay liner, minimum3/8" (9 mm) wall thick-
ness mustrunthrough the brickwall to the chimney liner
(butnotbeyondthe innersurface
of theliner). It mustbe
cemented
in place with refractory cement. This method
is illustrated.
For details on the other three options, refer
to the most recent edition
of the NFPA 211 code.

-~ ~-
VENTING
Holewith a minimum clear-
anceoflS" (450 mm)be-
tween connector and wall
Noncombustible cover, one
side only.
If two covers are
used, each must be mounted
on noncombustible spacers at
least
7/8" (21 mm) away from
thcwall.
1"(2Smm)
AN APPROVED CANADIAN
WALL PASS-THROUGH
TheChimney
The Oakwood must be installed into a chimney
approved for use with solid-fuel appliances. In the U.S.,
the Oakwood must be connected to (1) a prefabricated
chimney complying
with the requirements for Type HT
chimneys in the Standard for Chimneys, Factory-Built,
Residential Type and Building Heating Appliances, UL
103, or (2) acode-approvedmasonry chimneywitha flue
liner.
In Canada, the Oakwoodis listedfor use with pre-
fabricated chimneys
~ested and listed to the,high tem-
perature (650 degrees C) chimney standard, ULC S-629,
or with a code approved masonry chimney.
Theminimumrecommendedheightfor any chim-
ney is 16
ft (4.8 m) above flue collar height. For non-
mobile homeinstallations, a roundflue (eithermasonryor
approved prefabricated),
of either 6" (150 mm), 7" (180
mm) or 8" (200 mm) may be used. For square or rectan-
gularmasonry chimneys, nominal sizes
of 8" x 8" or 8"x
12" (200 mm x 200mm, 200 mm x 300mm) may be used.
Codes require that solid-fuel chimneys extend 3
ft
(0.9 m) above the point at which they exit fromthe roof,
provided that no part
of any structure is within the top of
the chimney, then the chimney must extend 2 ft (6 m)
above the highest point with the 10
ft (3 m) radius top
height.
If there is hot ten feet of clearance from the top
of the chimney, then the chimney must extend 2 ft (6m)
above the highestpoint withthe 10
ft (3m) radius.
" - ~ -~ ~~- ~ -
Minimum 12" (300
mm)tocombustibles
Minimum2" (SOmm)
Minimum 12"
Liner
(300mm)tobrick
~ /FireClay
;;:: ,......... ~ thimble
~
C: ___ i""o::"
.S Chimney
t5 connector
MlnrYchimnev
builttoNFPA211
specifications
AN APPROVED U.S.
WALL PASS-THROUGH
Do not connect this unit to a chimney flue
servicing another appliance.
NOTE: Therestriction of not venting morethan
one applianceto the same flue appliesto the
U.S. specifi-
cally. While it isnotrecommendedthatyou use the same
chimneyfor more than one appliance, in Canada certain
exceptions may be made. Be sure to contact yourbuild-
ingcodeinspectionofficialto see
if this optionis allowed
inyour area, andto find outthe specific requirements for
suchaninstallation.
More than 10ft (3 m)
THE 2-FOOT, 3-FOOT, 10-FOOT RULE
OakwoodWoodStove 17

~ ~ ~ - - ~- ~- ~ - ~- ~~ ~ ~
VENTING i
~~ ~ ~
ExistingMasonryChimneys
If youplanonusing a pre-existingmasonry chim-
ney, haveit thoroughly inspected and cleaned. Any faults
which make the chimney unsafe and unusable must be
.repairedpriorto use. Thesecanincludeimproperheight,
structural defects, blockages, inadequate clearance to
combustibles, unsealed openings into other rooms
of the
.house, signs of creosote or smoke leakage, a loose or
absent clean-out door, or absence
of a liner.
Do not connect to any air distribution
duct or system
Ventingtoa Masonry Chimney
Whenconnectingto a masonry chimney, several
provisions are standard. First, whetherthe chimney con-
nector is vented to the chimney through a thimble or a
breech pipe, neither must pass beyond the inner surface
of the chimneyliner, andbothmustbefirmly cementedin
place with refractory cement. (A thimble is a masonry
pipe which is inserted through the chimney wall, and is
frequently the preferred method; a breech pipe isa piece
of steel pipe used the same way.) In Canada, a breech
pipe has ridges or protrusions to lock
it firmly into the
refractory cement. In either case, the chimney connec-
tor vents to the chimney through the thimble or breech
pipe. Using athimble, the connector slides completely
inside the masonry tothe inneredge
of the flue liner, and
may be easily removed for chimney and connector in-
spection. A breechpipe must extend at least
2" (50 nun)
into the room, so the connector can be attached with
sheetmetal screws.
Venting to a Masonry FireplaceChimney
In some situations, a code compliant chimney
originally used for a masonry fireplace may be used to
install your Oakwood. In addition to the requirements
found in the previous paragraphs,
it is important to be
aware that all clearances must be met, including those
fromthe chimney connector to combustibles
-18" (360
mm)to sides and 18" (450nun) to ceiling. Donot forget
to includefloor protection inyourplans. (See Clearances
and Floor Protection
in this section.) Since many fire-
places have exposed wooden mantels and trim, pay spe-
cial attention to the clearances necessary to these mate-
rials.
If your fireplacechimney is behind a combustible
wall, you must use an approved wall pass-through sys-
tem to gain access to the masonry chimney. The chim-
ney connector must enter the chimney at a place where
it is lined, and the fireplace must be made inoperable.
18 Harman Oakwood
Mechanical
fasteners
(minimum of
fhree) but not at
bottom of
connector
Chimney
connector
~:~~~ri~:ttothe
inSide ofthe
chimneyliner
High-temperaturesealant used
to cement the claythimble
CONNECTION TO A MASONRY CHIMNEY
USING A CLAY
THIMBLE
Forexample, you might remove the damper, replacing it
with a secure, airtight, noncombustible seal (removable
for inspection); this also satisfies the requirement thatno
room air mustbe allowed to enter the chimney.
Installingto a PrefabricatedChimney
When venting your Oakwood using a prefabri-
catedchimney, be sure to contactlocal building code au-
thorities, andtofollow the manufacturer's instructions ex-
actly. Use only the manufacturer's parts; do not use
makeshiftinstallationtechniques. Allprefabricatedchim-
neys must
betested to either the U.S. orCanadian high-
temperature standards, UL 103 or ULC-629.

~ ~_ _ _~ ~ __ ~H ~ __ ~ ~~ ~ _ "'!
: VENTING '
~ ""~ ~ --~ ~ "-" ~ -~ ~~ ~ ~
Warning: Do not install in sleeping room.
The Harman Oakwood was tested with fuel
door open
and closed. Keep door closed for nor-
mal operatiJlg conditions.
If you operate with doors open, open the by-
pass
and put a screen over the opening.
Do notburnany fuel otherthan wood, suchas char-
coal, which can cause increased. carbon monoxide pro-
duction oroverfrring. Neverusehighlyvolatile substances
in your stove, such as g;soline, wHich copld cause an
explosion.
.'
When solid fuels are burned completely, tliey pro-
duce water and carbon dioxide. However, in long slow
burns, a substantial
8.mo~nt of -carbon monoxide may be
produced. If allowedto buildup, carbonmonoxide (which
is odorless) canprove fatally poisonous. Proper ventila-
tion and draft will prevent this"from happening.
If you
smell smoke, turn uptheaircontrollever setting, andthor-
oughly ventilate your dwelling. During future burns,
be
carefulnotto overloadthe stovewithfuel, so you will not
be tempted to constantly operate at a low air control set-
ting. Other causes
of poor ventilation or draft are icing,
exhaust fans, a blocked outside
air inlet, and room air
starvation.
If your stove is sluggish and you get occa-
sional odor, checkthese possibilities and increase the air
flow
in yourhome.
Caution: Always wear fire-resistant gloves ,;
to operate the stove. The air control is hot
while in operation.
OakwoodWood Stove 19

Chimney
20 OakwoodWoodStove
- ~ ~~
VENTING
---- Chimney Cap
Chimney
Support
Roof Radiation
Shield
Chimney Cap
Sealed Storm Collar