USSC Wondercoal 2927 User manual

Owners Manual
Model 2927
WONDERCOAL
AUTOMATIC COAL BURNING CIRCULATOR HEATER
SAFETY NOTICE:
If this heater 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
inspection requirements in your area.
CAUTION:
Read all instructions carefully before starting the installation
or operation of this heater.
Improper installation may void your warranty.
DO NOT USE THIS HEATER IN A MOBILE HOME OR TRAILER
*ASSEMBLY
*INSTALLATION
*OPERATION
*REPAIR PARTS
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WARNOCK HERSEY
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85761C 1/95
HOW TO ORDER REPAIR PARTS
Thismanualwillhelpyoutoobtainefficient,dependableservice
from the heater, and enable you to order repair parts correctly.
Keep this manual in a safe place for future reference.
Whenwriting,alwaysgivethefullmodelnumberwhichisonthe
nameplate attached to the inside of the cabinet door of the
heater.
When ordering repair parts or options, always
givethefollowinginformationasshowninthelist:
1. The PART NUMBER
2. The PART DESCRIPTION
3. The MODEL NUMBER: 2927
4. The SERIAL NUMBER:________________
Before installing your heater, fill in the serial number of your
heater in the space provided above.
United States Stove Company
P.O.Box 151
227 Industrial Park Rd.
South Pittsburg, TN 37380
[phone]
United States Stove Company
P.O.Box 151
227 Industrial Park Rd.
South Pittsburg, TN 37380
[phone]

TOOLS AND MATERIAL NEEDED
TOOLS
Pencil
6 Foot Folding rule or tape
Tin Snips
Drill, hand or electric
Drill bit, 1/8" dia.
(for sheet metal screws)
Gloves
Screwdriver (blade-type)
5/16" Nut Driver or
5/16" Socket w/Ratchet
MATERIALS
Chimney Connection- 6" Dia. Black
Steel (24 Ga. minimum): Straight or
Elbow (as required)
1/2" Sheet Metal Screws
6" Inside Diameter Underwriters
Laboratories (UL) listed Residential
Type and Building Heating Appliance
Chimney or lined, 6" existing
Masonry Chimney.
Floor Protector Material: 3' x 4'-6" as
specified on page 4.
Furnace Cement (Manufacturer
recommends: Rutland Code 78 or
Equivalent)
219
CIRCULATOR DIMENSIONS
Fig. 1
32 1/4
16 1/8
33 1/2
4 1/8
8 5/16
19 1/4
Options for Wondercoal Circulator
Model 2927
F36 Blower

1.
2.
3.
4.
5.
6.
7.
8.
18 3
RULESFORSAFEINSTALLATIONANDOPERATION
Read these rules and the instructions carefully.
SAFETYNOTICE:Ifthisheateris notproperlyinstalled,ahousefiremayresult. For
your safety, follow the installation directions. Contact local building or fire officials
about restrictions and installation inspection requirements in your area.
Check local codes. The installation must
complywith theirrulings. Donot install this
heater in a mobile home or trailer.
Alwaysconnectthisheatertoachimneyor
vent to the outside. Never vent to another
room or inside a building.
Do not connect a COAL burning heater to
an aluminum Type B gas vent. This is not
safe and is prohibited by all codes. This
heater requires connection to approved
chimneys:Eitherafactorbuilt6"UL103HT
or a lined and approved and recently in-
spected and cleaned masonry chimney
with a 6" flue, preferably round. A larger
masonry flue may be used, so long as the
flue-sectiondiameterisnotgreaterthan50
sq. in.
Thechimneyportion(whetherfactory-built
ormasonry)mustbetallenoughtoprovide
sufficient draft and safe exit of smoke and
combustionproducts.PleaserefertoPage
5.
Be sure that your Chimney is safely con-
structedandingoodrepair.Havethechim-
ney inspected by the Fire Department or a
qualified inspector (such as a Chimney
sweep). Your insurance company may be
able to recommend a qualified inspector.
Inspect chimney connector and chimney
twice monthly during the heating season
for any deposit of creosote or soot which
must be removed.
Provideairforcombustionfromoutsidethe
house into the room where the heater is
located. If the intake is not in the same
room, air must have free access to the
room.
CAST IRON PARTS MUST BE "SEA-
SONED" TO AVOID CRACKING. BUILD
ONLY SMALL FIRES ON FIRST USE.
To prevent injury, do not allow anyone to
use this heater who is unfamiliar with the
correct operation of the heater. Do not
allowchildren to use or inany way operate
this heater.
For further information on using your
heatersafely,obtainacopyoftheNational
Fire Protection Association (NFPA) pub-
lication "Using Coal and Wood Stoves
Safely" NFPA No. HS-10-1978. The ad-
dress of the NFPA is Battery March Park,
Quincy, MA. 02269.
Keep the ash pit section free of excess
ashes. Do not allow ashes to stack higher
than the sides of the ash pan.
DISPOSALOF ASHES- Ashes should be
placed in a metal container with a tight
fitting lid. Keep the closed container on a
non-combustible floor or on the ground,
well away from all combustible materials.
Keep the ashes in the closed container
until all cinders have thoroughly cooled.
Theashes may be buried inthe ground or
picked up by a refuse collector.
CAUTION: The special paints used on
your heater may give off some smoke
while they are curing during first few fires.
Build small fires at first. The metals used
in construction of the heater has a light
coating of oil. This could give off smoke
and/or odors when heater is used for the
first couple of times. This should disap-
pearaftera shortperiodof time.Once this
burn-off has occurred, it should not reoc-
cur.
CARING FOR PAINTED PARTS- This
heaterhasapaintedoutsidejacket,which
is durable but it will not stand rough han-
dlingorabuse.Wheninstallingyourheater,
usecare inhandling. Cleanwith soapand
warm water when heater is not hot. DO
NOT use any harsh chemicals (acids or
caustics) or scouring powder, as these
wear and dull the finish.
KEEP THE FEED DOOR, ASH DOOR
AND CABINET DOOR CLOSED AT ALL
TIMES EXCEPT WHILE TENDING THE
HEATER. DO NOT OVERFIRE THE
HEATER. THIS WILL HAPPEN IF THE
FEED DOOR, OR PARTICULARLY THE
ASH DOOR, IS LEFT OPEN DURING
OPERATION. UNDER EXTREME CON-
DITIONS THIS CAN PRODUCE DAN-
GEROUS RESULTS. AS A MINIMUM, IT
WILL ALLOW THE PAINT TO DIS-
COLOR.
Use coal only. DO NOT USE the coal
bricks that are manufactured from coal
dust and a wax-type binder.
CAUTION: DO NOT TOUCH THE
HEATER UNTIL IT HAS COOLED.
ALWAYS WEAR GLOVES WHEN
REFUELING THIS UNIT OR WORKING
WITH METAL CABINET PARTS.
9.
10.
11.
12.
13.
14.
15.
31
8
910 11 12
38
13
14
35
7
6
4
5
321
33
36
15
37 16
17 18
34
30
32
19
20 21
22
23
24
39
29 28
25
26
27
40
41
42
43
REPAIR PARTS AUTOMATIC COAL BURNING CIRCULATOR HEATER MODEL 2927 - INTERIOR

20"
26"
16"
8"
52 1/4"
20"
19 1/4"
44"
4 3/4"
NOTE: DASHED LINES SHOW
STRAIGHT UP AND THROUGH
THE WALL INSTALLATION
8" 32 1/4" 16"
FLOOR PROTECTOR
(TOP VIEW)
SIDEWALL
NON-COMBUSTIBLE
CONSTRUCTION IN
ACCORDANCE WITH
NFPA 211
LOCATING THE HEATER
AS A LOCATION IS SELECTED,
KEEP THE FOLLOWING IN MIND:
1. The chimney connection should be as
possible. The heater must have its own chim-
ney.Donotconnectthis unit to a chimney flue,
serving another appliance. If there is no chim-
ney near where you wish to place the heater,
youcan use aUL103HTResidentialType and
Building Heating Appliance Chimney (Fig. 5
&6).
2. Place the heater on solid masonry or solid
concrete. When the heater is used on a com-
bustible floor protector of one layer of 3/8"
millboard having a thermal conductivity of
K=0.84 BTU in./ft. 2 hr. Deg. F with 28-gauge
sheetmetaloraULListedfloorprotector.Have
the floor protector extend 16" beyond the door
sideoftheheaterandundertheconnectorpipe
in the back.
3. CheckFigures2,3,and4.Besureyouhave
the clearances shown from the heater and the
connector pipe to combustible surfaces. If you
have a solid brick or stone wall behind your
heater, you can place the heater as close as
youwishtothewall.Ifthewallisonlyfacedwith
brick or stone, treat it as a combustible wall.
NOTE: BEFORE FIRING
HEATER
Slide firebricks toward the rear
so no gaps remain between
them.
CAUTION:
Keep furnishings and other
combustible materials away
from the heater.
4
REPAIR PARTS LIST - MODEL 2927 (SEE PAGE 18)
AUTOMATIC COAL BURNING CIRCULATOR
17
Fig. 3
Fig. 2
Fig. 4
Key No. Description Qty. Part No.
1 Shaker 1 40045
2 Ash Pan 1 68574
3 Base 1 67859
4 Draft Damper Hinge Pin 1 17200
5 Draft Damper Frame 1 40075
6 Draft Control Plate 1 68583
7 Clip 2 83818
8 Glass Brass Trim (LH/RH) 2 89382
9 Glass Brass Trim (TOP/BOTTOM) 2 89381
10 Glass Frame 1 68452
11 Glass Gasket 66" 88047
12 Glass (20 1/2"x12 1/2") 1 89409
13 Front Half Brick 1 23782
14 Front Coal Grate 1 40283
15 Flue Collar 1 40287
16 Fire Box Weldment 1 68655
17 Firebrick Retainer 1 40132
18 Firebrick 7 89066
19 Door Hinge Pin 1 83114
20 Feed Door 1 68605
21 Feed Door Rope Gasket 44" 88033
22 Machine Screw (1/4-20x1) 1 53227
23 Draft Wheel 1 40056
24 Door Handle 2 40091
25 Flat Washer 1 83045
26 Hex Nut (1/4-20) 2 83250
27 Latch 1 22108
28 Ash Door Rope Gasket 29" 88033
29 Ash Door 1 67781
30 Hex Nut (1/4-20) 1 83250
31 Front Liner 1 40100
32 Coal Grate Frame 1 40102
33 Coal Grate 1 40101
34 Rear Half Brick 1 23785
35 Back Brick Retainer 1 23145
36 Flue Baffle 1 23249
37 Flue Collar Gasket 1 88032
38 Air Wash Deflector 1 23547
* Grate Support 2 22536
* Corner Key (Brass Trim) 10 89419
* Blank Key (Brass Trim) 10 89420
39 Wood Handle (Optional) 2 89523
40 Door Hinge Pin 1 23441
41 Two Step Latch 1 22434
42 Latch Spacer 1 21467
43 Smoke Curtain 1 22090
* Smoke Curtain Bracket 2 22171
* NOT SHOWN

CHIMNEY CONNECTION
Two basic types of chimneys are approved for use with solid fuel: Factory-built and
masonry. Factory-built chimney must comply with UL103HT standard.
Do not expect your stove or furnace to create draft. Draft is not a function of the
appliance. Draft is purely a function of the chimney. Modern stoves and furnaces
are much more airtight and efficient than those of the past; and, therefore require
greater draft. A minimum of .05, measured in water column (gauges to measure
chimney draft are readily available at stove shops and are economical to purchase
or rent) is required for proper drafting to prevent back-puffing, smoke spillage, and
to maximize performance.
Chimneys perform two functions - one of which is apparent: The chimney provides
ameansforexhaustingsmokeandflue gases resulting from combustion of the fuel.
Secondarily, though, the chimney provides "Draft" which allows oxygen to be
continuously introduced into the appliance, so that proper combustion is possible.
As of April 1, 1987, all heaters and furnaces manufactured by United States Stove
Companyshould be installed usingafactorybuiltchimneythat meets the "TypeHT"
requirement of UL 103 (when a factory - built chimney is used).
IMPORTANT
*Size the chimney to the flue outlet on the stove. (6" outlet = 6" I.D. chimney)
*Avoid using elbows except as necessary (they reduce draft).
*Make sure all horizontal runs of connector pipe go up hill (1/4" elevation for each
horizontal foot).
THIMBLE
COLLAR
PIPE
ELBOW
PIPE
NON-COMBUSTIBLE
WALL
FLOOR PROTECTOR
FLUE CONNECTION - NON-COMBUSTIBLE WALL
PIPE
FLOOR PROTECTOR
REFER TO CHIMNEY
MANUFACTURERS PARTS
AND INSTRUCTIONS
2 FT MIN.
10 FT. 3 FT.
MIN.
Fig. 5 Fig. 6
516
21 11
20
10
22
1
2
16 14
15
12 18
6
17
89
4
13
3
5
19
7
REPAIR PARTS AUTOMATIC COAL BURNING CIRCULATOR HEATER MODEL 2927 - EXTERIOR

CAUTION:
NOT ALL FIREPLACES
ARE SUITABLE FOR
INSTALLATION OF A COAL
HEATER.
REPAIR PARTS
AUTOMATIC COAL BURNING CIRCULATOR HEATER
MODEL NUMBER 2927
(SEE PAGE 16)
KEY NO. PART NO. DESCRIPTION QTY.
1 89411 Mesh Brass Trim (LH/RH) 2
2 89410 Mesh Brass Trim (TOP, BOTTOM) 2
3 89413 Cabinet Front Trim (LH) 1
4 68439 Cabinet Left Side 1
5 68213 Cabinet Top 1
6 68505 Cabinet Back 1
7 68573 Cabinet Right Side 1
8 89065 Door Hinge 1
9 68236 Cabinet door 1
10 89062 Door Knob 1
11 83093 Spring Latch 1
12 89503 Thermostat Linkage Adjuster 1
13 89414 Cabinet Front Trim (TOP) 1
14 23377 Cabinet Front 1
15 89412 Cabinet Front Trim (RH)d 1
16 23106 Cabinet Front Mesh 1
17 67743 Thermostat 1
18 89687 Thermostat Knob 1
19 23332 Flue Collar Ring 1
20 83033 Machine Screw (8-32x1/4) 1
21 83244 Nut (KEP, 10-24 PLAIN) 1
22 83005 Machine Screw (10-24x1/2) 1
REPAIR PARTS LIST
615
Many people may wish to convert an
existingfireplacetoheateruse.Usually,
safe connection of stovepipe to a ma-
sonrychimneyrequiresmoreeffortthan
connection to a prefabricated chimney.
Thefireplacemustbeclosedandsealed
atthedamperintheflue.Goodsealants
arehigh temperature caulking,ceramic
wool, and furnace cement. Always re-
member to inspect the masonry chim-
ney and fireplace. If necessary, clean
the flue and smoke shelf before begin-
ning your installation. Install the heater
intothechimneyso that the system can
be dismantled for cleaning and inspec-
tion.
Before deciding to convert your fire-
placeor existing chimney, keepinmind
thatolderfireplaces and their chimneys
are unsafe. They must be structurally
sound,andthefluelinermustbeingood
condition.Do notusea chimneyif it is
unlined (should have a tile clay liner
to protect brickwork), have it relined
professionally.Clearancestocombus-
tiblesare explainedintheprevious sec-
tion on masonry chimneys. If you have
any questions regarding the condition
ofthe chimney,consultaqualified engi-
neer,competentmason,certifiedChim-
ney Sweep, or knowledgeable inspec-
tor.
Many prefabricated fireplaces fall into
the"zero-clearancefireplace"category.
This is a factory metal fireplace with
multilayeredconstruction.Itisdesigned
to provide enough insulation and/or air
coolingsothatthebase,backandsides
can be safely placed in direct contact
with combustible floors and walls. Al-
though many prefabricated fireplaces
have been tested by nationally recog-
nized organizations for use as fire-
places, they have not been tested to
acceptheaters.Infact,theiruseassuch
may void the manufacturer's warranty.
Steel-lined fireplaces, on the other
hand, can be used with heaters. These
unitsuse a 1/4-inchfireboxlinerand an
airchamberinconnectionwith8inches
of masonry to meet code. They contain
all the essential parts of a fireplace,
firebox, damper, throat, smoke shelf,
andsmokechamber.Manyofthemlook
exactly like a masonry fireplace and
must be checked closely for above re-
quirements before installing a coal
heater into them.
Another method frequently used by
some people is to vent the heater di-
rectly into the fireplace. This does not
meet code since the heater is being
vented into another appliance - the
fireplace. This method should not be
attempted because combustion prod-
ucts will deposit and build up in the
firebox or fireplace. Be certain not to
install a hazard in you house. You will
void your warranty with this installa-
tion.
VENTING INTO A FIREPLACE

FIREPLACE INSTALLATION
Connectionofthestovepipedirectlyinto
the existing masonry chimney over the
fireplace opening is the only approved
method. This installation performs bet-
ter, yielding easy to clean and inspect
forcreosote.Before beginning this type
of installation plan carefully; a high de-
gree of skill is required to insure safety.
An entry port for the stovepipe must be
cut through the chimney with minimum
damage to the fire clay liner. Some
involvedmeasurementsmayberequired
to locate the flue liner exactly. Before
cutting, take time to mark the size and
position of the entry port. Position the
entryport so that at least 8 inches ofthe
flue liner remains below the port.
Keep in mind that coal mantels and
combustible trim around the fireplace
must have adequate clearances from
the heater and stovepipe or must be
protectedinanapprovedmanner.Also,
be sure to leave at least 24" clearance
between the top of the stovepipe and
the combustible ceiling or other com-
bustibles.Placingthecenteroftheentry
port 2 feet below the ceiling will insure
proper clearance for 6 inch, 8 inch, and
10 inch stovepipes. Next, install a fire
clay (at least 5/8 in. thick) or metal
thimble, being sure that the thimble is
flush with the inner flue lining, secure
thethimbleinplacewithrefractorymor-
tar. The thimble should be surrounded
on all sides with 8 inches of brickwork
(solid masonry units) or 24 inches of
stone.
7
INSTRUCTIONS FOR TWO-STEP LATCH OPERATION
1. Followtheseinstructionstooperate youunitsafely whenoperatingthefeeddoor.
2. Turn handle clockwise to the 12 o'clock position, pull the door open until you
engage the second step (Fig. 11).
3. Hold the door in that position for approximately 10 seconds.
4. Thentoopendoor,turn thehandlecounter clockwisetothe9o'clockpositionand
then continue to pull the door open. (Fig. 11A)
5. To close and latch the door, reverse steps 2 thru 4.
NOTE:
THIS NEW LATCHING MECHANISM MEETS CODES AND
PROVIDES MORE SAFETY FOR THE USER OF THIS STOVE.
14
NOTE:
DURING OPENING AND CLOSING OF THE FEED AND ASH DOORS
OF THIS HEATER, IT MAY SEEM THAT THE FIT OF THE DOOR IS
"TOO TIGHT". AS THE HEATER IS FIRED, THE GASKETING
"SETTLES" OR "SEATS" ITSELF IN THE DOOR. THE TIGHT FIT AT
THE FACTORY AND BEFORE THE HEATER'S INITIAL FIRING IS TO
INSURE A GOOD SEAL AFTER THE GASKETING "SETTLES".
Install the stovepipe as far as possible
into the thimble, but not past the inside
of the flue lining. There should be a
smallairspace(approximately1/2inch)
between the stovepipe and thimble,
allowing for expansion of the stove-
pipe. Seal this airspace with high-tem-
perature caulking or ceramic wool. Fi-
nally, be sure to wire the damper close
andapplythesamesealant youusedat
the stovepipe and thimble junction.
Do not use the Type B installation (not
illustrated in this manual), that is, vent-
ing up through the fireplace opening,
regardless of whether the fireplace
opening is closed.
Masonry chimneys have several posi-
tive attributes: If properly built, they are
quite durable, and most homeowners
consider them more attractive perhaps
than a non-enclosed factory built chim-
ney.
And,if the chimneyislocated within the
confines of the house (that is, not at-
tached to an exterior wall), its mass
alone will store heat longer and con-
tinue to release the heat long after the
fire has died. Masonry chimneys have
many disadvantages though.
Masonry chimneys constructed on an
exterior wall are exposed to cold out-
door temperatures, promoting greater
heater loss, higher accumulations of
creosote,andreduceddraftwhichleads
to poorer heater or furnace perfor-
mance.
Concrete block chimneys (when not
protected by a brick veneer) are inher-
entlyunsafe,resultinpoordraft,andare
subject to rapid deterioration. They do
not meet code and are not recom-
mended.
Fig. 11 Fig. 11A

SERVICE HINTS
Do not expect a heater to draw. It is the
chimney that creates the draft. Smoke
spillage into the house or excessive
build-up of water or creosote in the
chimneyare warnings that the chimney
is not functioning properly. Possible
causes are:
1. Theconnection pipe maybepushed
into the chimney too far, stopping the
draft (Fig. 8).
2. Do not connect two heaters into the
same chimney flue.
3. The chimney used for a heater must
not be used to ventilate the cellar or
basement.Ifthereisacleanoutopening
at the base of the chimney, it must be
closed tightly.
4. If the chimney is too cool, water will
condense in the chimney and run back
into the stove. Creosote formation will
be rapid and may block the chimney.
Operatetheheateratahighenoughfire
to keep the chimney warm preventing
this condensation.
5. If the fire burns well, but sometimes
smokes or burns slowly, it may be
caused by the chimney top being lower
than another part of the house or a
nearby tree. The wind blowing over a
house or a tree falls on top of the chim-
ney like water over a dam, beating
downthesmoke.Thetopofthechimney
shouldbeatleast3feethigher thanany
point of the roof within 10 feet (Fig. 6).
When coal is burned, the products of
combustion combine with moisture to
form a soot residue which accumulates
onthefluelining.Whenignited,thissoot
makes an extremely hot fire.
The chimney connector should be in-
spected at least twice monthly during
the heating season to determine if a
creosote buildup has occurred.
If creosote has accumulated, it should
be removed. Failure to remove creo-
sote or soot may cause a house fire.
Creosote may be removed by using a
chimneybrushorothercommonlyavail-
able materials.
Chimney fires burn very hot -- up to
2100 degrees F. If you experience a
chimney fire, immediately call the fire
department.Theyhavetheprofessional
meansfor extinguishing a chimney fire.
Onceachimneyfirehasoccurred,itcan
only be extinguished by removing its
sources of oxygen. This can be accom-
plishedbyshuttinganymechanicaldraft
device such as dampers, discharging a
CO2 (carbon dioxide) or halon fire ex-
tinguisherdirectlyintothestovethrough
an appropriately placed cleanout. If us-
ing a Halon extinguisher, please re-
memberthat is totally displacesoxygen
and could become a hazard in itself if
enough were discharged into a living
space.
CAUTION
A chimney fire may cause ignition of wall studs or rafters which you thought
were safe distance from the chimney. If you have a chimney fire, have your
chimney inspected by a qualified person before using again.
NOTE:
A draft reading of .05 to .06 w.c. is suggested for proper burning of this unit
when using bituminous coal as fuel. When using anthracite coal, this draft
readings is a minimum reading.
CHIMNEY MAINTENANCE
CREOSOTE-FORMATION AND NEED FOR REMOVAL
138
Most masonry chimneys have a cleanout. If yours does, make sure it is gasketed or
otherwise sealed. A loose fitting door will contribute greatly to the draft problems.
If you have any question regarding venting your appliance, feel free to contact the
factory at the address and phone number on this Owner's Manual. You may also
contact NFPA (National Fire Protection Association) and request NFPA Standard
211 (1984 Edition). Their address is Battery March Park, Quincy, Massachusetts
02269. Another helpful publication is NFPA Standard 908, available at the same
address. Specify 1984 Edition on either of the above publications.
5/8" FIRECLAY
FLUE LINER
STOVEPIPE CONNECTOR
SEALED AT THIMBLE
HORIZONTAL 6" STOVEPIPE
(24 GAUGE) WITH 1/4"
RISE PER FOOT
6" STOVEPIPE ELBOW
CLEARANCE REDUCER
(FOR MANTEL)
6" STOVEPIPE - HAVING
THREE SHEET METAL SCREWS
PER JOINT OF STOVEPIPE
U.L. LISTED
FLOOR PROTECTOR
DAMPER THROAT
CLOSED AND SEALED
TYPE "A"
FIREPLACE
CONVERSION
Fig. 7

SUGGESTIONS FOR BURNING ANTHRACITE COAL
1. With coal it is important to maintain a
clean chimney. The chimney connector
and chimney should be inspected at least
twice monthly during heating season.
2. Keepthegrateclearofashandcinders.
Use the shaker grate to keep the ashes
from building up in the firebox.
3. Do not operate the unit with the ash
door, feed door, or cabinet door open.
4. Anthracitecoalburns with a short,blue
flamewith the coalshavinga glowing, red
color. Before adding coal, when starting
the fire, have a good hot log fire burning.
5. After having a log fire burning, add
smallamounts of coal until a bed of coalis
built up.
6. A draft reading of -.05 to -.06 in w.c. is
required for anthracite to burn.
The draft wheel located on the feed door should be opened when burning coal. The
draft wheel provides a source of secondary air that is needed when burning coal.
Secondary air is needed because when coal burns, it gives off large quantities of
volatile gases that need additional air before complete combustion can occur. This
draft wheel may be adjusted to give the best performance depending on the
particular needs of the user.
TROUBLE SHOOTING TIPS FOR MODEL 2927
LIST OF PROBLEMS POSSIBLE CAUSE SOLUTION
1. Smoking when feed A) Insufficient Draft. A) Set Thermostat high
door is open. B) Clogged chimney or B) Clean Chimney
chimney connector. C) Add raincap to chimney
2. Flame spillage when A) Insufficient Draft. A) Set Thermostat high
feed door is open. B) Smothering fire when B) Add fuel so as not to
adding fresh fuel. smother fire.
3. Creosote build-up A) Burning green wood A) Burn only seasoned
wood.
B) Thermostat setting too B) Set thermostat higher to
low type fuel. attain higher fuel temp-
eratures. This will aid in
preventing build-up of
creosote.
4. Heater does not heat. A) Wood not seasoned A) Allow wood to season
in a dry, well ventilated
area for 6 months.
B) Blower control set too B) Set blower control to a
low. higher temperature.
C) Insufficient flue draft. C) Set flue draft
(See Page 9)
RULES FOR CONNECTOR PIPE INSTALLATION
1. Thecrimpedendofthestovepipefits
insidetheheaterfluecollar.Installaddi-
tionalpipeandelbowwiththeCRIMPED
ENDTOWARDTHEHEATER.Thiswill
allowanycondensationinthefluetorun
back into the heater.
2. Slope any horizontal pipe upward
toward the chimney at least 1/4 inch for
each foot of horizontal run.
3. You must have at least 18 inches of
clearance between any horizontal pip-
ing and the ceiling.
4. The pipe cannot extend into the
chimney flue. (Fig. 8)
5. Seal each connector pipe joint with
furnace cement. Also seal the pipe at
the chimney.
6. Use 3 Sheet Metal screws at each
joint to make the piping rigid.
7. Itis recommended thatnomorethan
two 90 degree bends be used in the
stovepipe installation as more than two
may decrease the amount of draw and
possible, use only corrugated (nonad-
justable) elbows. They are much more
airtight.
8. The chimney connector must not
pass through an attic or roof space,
closet,oranyconcealedspace,orfloor,
ceiling, wall or combustive construc-
tion.
RIGHT WRONG WRONG
Fig. 8
912
C
L
O
S
E
D
O
P
E
N
Fig. 10

OPERATING INSTRUC-
TIONS
FUEL
Eggsize Bituminous coal forresidential
furnaces, or any of the specially pack-
aged fireplaces coals can be used.
Coal with a low ash content (2% to 6%)
is recommended.
NOTE:Storecoalinadry,well-venti-
lated area.
LIGHTING
1. Set the thermostat on "High" for
maximum draft.
2. Open the feed door and place paper
andkindling on the grate for startingthe
fire.
3. Light fire and close feed door.
4. Add about 15 pounds of coal de-
pending on model after fire is burning
briskly. Use care not to smother the
kindlingfire.Sethigheror lowerforyour
comfort.
5. Set thermostat for desired tempera-
ture.
ADDING FUEL
Whenstartingafire,addsmallamounts
of fuel periodically as required (enough
toburnfor3to5hours).Asyou become
more familiar with the operation of your
heater, it is possible to add coal to burn
for longer durations of between 8 to 12
hours, but doing so carelessly will pro-
mote incomplete combustion and con-
siderable sitting, along with a very dirty
inefficient fire.
1. SetthermostattoHIGHbeforeopen-
ing feed door.
2. Coal Fire- Never smother the fire
when adding coal (see CAUTION be-
low). Gas accumulation and a mild
smoky explosion will occur:
a. Add fresh kindling if the bed of
coals has cooled.
b. Add up to 20 lbs. of coal. Never
add coal above top of the firebrick.
c. Stir the coal and watch the fire.
Be sure the new coal is burning
before you close the doors and turn
the thermostat down.
3. Shake Grates vigorously back and
forth to dump ashes into ash pan. Do
this at least once every 12 hours of
operation.
4. Empty ash pan regularly. Do not
allowashestobuilduptograte,asgrate
will warp and burn out, and you might
spill the ashes when removing the pan.
Dispose of hot ashes properly. (See
note 11 on page 3)
CAUTION: BUILD A FIRE ON INTE-
GRAL GRATE THAT IS PROVIDED
WITH THE HEATER.
MINIMUM FIRE
The burning rate at the low setting can
be further adjusted by opening or clos-
ing the minimum fire air shutter (Fig. 9)
on the draft control door.
1. Partiallyclosetheshuttertomakethe
fuel burn longer.
2. Open the shutter, exposing a large
opening, to reduce the formation of
creosote on soot (see notes on Chim-
ney Maintenance).
3. Do not operate the heater with the
minimum fire air shutter completely
closed.
CAUTION: DO NOT OVERFIRE THE
HEATER,ASSTATEDEARLIER,THIS
CAN PRODUCE A DANGEROUS
CONDITION AND EVEN CAUSE A
HOUSE FIRE. IF ANY PORTION OF
THE HEATER OR ANY CHIMNEY
CONNECTOR GLOWS RED OR DIS-
COLORS, THE HEATER IS BEING
OVERFIRED.
CAUTION: DO NOT OPERATE THIS
HEATER WITH FEED OR ASH DOOR
OPEN. THIS HEATER IS DESIGNED
FOR THERMOSTATIC OPERATION.
OPERATION WITH EITHER DOOR
OPEN WILL OVERHEAT AND DAM-
AGE THE HEATER.
CAUTION:NEVER STORE FLAM-
MABLE LIQUIDS, ESPECIALLY
GASOLINE,IN THEVICINITY OFTHE
HEATER.
CAUTION: NEVER USE THE MANU-
FACTURED COAL BRICKS THAT
ARE MADE FROM COAL DUST AND
A WAX-TYPE BINDER.
WARNING: THE USE OF WOOD IN
THIS STOVE EXCEPT FOR COAL IG-
NITIONPURPOSES,ISA VIOLATION
OF FEDERAL LAW.
CAUTION: GASES THAT ARE
DRIVEN FROM FRESH COAL MUST
BE BURNED OR THEY WILL ACCU-
MULATE AND EXPLODE. NEVER
SMOTHER A FIRE WHEN ADDING
FRESH COAL.
CAUTION: NEVER USE GASOLINE,
GASOLINE-TYPE LANTERN FUEL,
KEROSENE, CHARCOAL LIGHTER
FLUID, OR SIMILAR LIQUIDS TO
STARTOR"FRESHENUP"AFIRE IN
THE HEATER.
ADJUSTING THE THERMOSTAT
The thermostat control was calibrated
atthefactory.Theoperationoftheheater
may require a change in calibration.
Calibrationadjustmentsshouldbemade
at room temperature.
If the room temperature is not satisfac-
tory, the thermostat operating range
may be changed as follows:
A. To increase the amount of heat at a
"HIGH" setting, adjust the wire link-
age to increase the draft damper
opening (Fig. 9).
1. Unhook linkage wire at point C
2. Take point A in left hand and B
right hand then turn B clockwise
about 3 turns.
3. Then hook linkage wire back to
draft control damper door at
point C.
B. To decrease the amount of heat at
"LOW" setting:
1. Check feed and ash doors to be
sure that they are closed tightly.
2. Check the connector pipe to see
that it is sealed in the flue collar
and at all joints.
3. If no air leaks are found, adjust
linkage the same as above,
except turn B counterclockwise
about 3 turns.
C. Adjusting the minimum Air Shutter:
The minimum air shutter has an
infinite number of settings. Several
adjustments may be necessary for
the unit to work most effectively for
your particular installation.
1. The minimum air shutter may be
adjusted to the closed position in
installations where the draft is
"above normal". Generally, .06
w.c. or above would be consid-
ered "above normal".
2. In installation where the draft is
"below normal", the minimum air
shutter would be adjusted toward
the open position.
10 11
MINIMUM FIRE
AIR SHUTTER
B
A
Fig. 9
NOTE: More than one recalibration
may be necessary. At room temp.
(72*F) and "Low" setting, the draft
damper door should be closed.
(C)