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USSC

INTRODUCTION

Thank You for your purchase of a U.S. Stove Wood/Coal 

Burning Gravity Style (Up-Flow) Furnace. Your decision to 

buy our Clayton Furnace was undoubtedly reached af-

ter much careful thought and consideration. We are very 

proud  you  chose  this  furnace  and  trust  you  will  receive 

the comfort and economy that others realize when heat-

ing with a U.S. Stove product.
Your dealer is important in your experience with the fur-

nace  not  only  with  the  purchase,  but  for  recommen-

dations  for  professional  installation  in  your  home.  The 

qualified  professional  installer  has  been  expertly  trained 

in  solid-fuel  furnace  installation  to  assure  the  safety  and 

comfort for your family while saving you money. Trust your 

experienced installer. He is a specialist in this field. 

IMPORTANT

Before installing and using your Clayton furnace, please 

read the following pages thoroughly and carefully. If you 

follow the instructions, your Clayton furnace will give you 

safe and more dependable service for years to come.

•  First step: Check your local codes. This installation must 

comply with their rulings.

•  Do Not install this furnace in a mobile home or trailer
•  Always have a smoke or ionization detector and a CO 

detector installed in your home.

•  To  prevent  injury  or  damage,  do  not  allow  anyone 

who is unfamiliar with the furnace to operate it.

•  This furnace 

must be

 installed ONLY in the prescribed 

manner  shown  in  illustrations  1,  2,  or  3  under  the 

In-

stallation  Examples

  in  this  manual.  It  is 

NEVER  to  be 

installed as a counter-flow or down-draft furnace

, or 

in any manner wherein the heated air is directed in a 

downward flow into the home or toward to an existing 

central furnace.

• 

NEVER INSTALL

 outside the home.

•  Spend adequate time with your furnace to become 

well  acquainted  with  the  different  settings  and  how 

each will affect its burning patterns. It is impossible to 

state just how each setting will affect your furnace be-

cause of the variations in each installation.

DISCLAIMER NOTICE

The BTU ranges and heating capacity specifications are 

provided as a guide and in no way guarantee the output 

or  capacity  of  this  unit.  The  actual  BTU  output  depends 

on the type of fuel being burned and its conditions, the 

thermostat setting, the draft adjustment and the chimney 

to  which  the  unit  is  attached.  The  actual  area  that  this 

unit will heat depends on factors such as the conditions 

of the building, heat loss, type of construction, amount of 

insulation, type of air movement, the location of the unit 

and more importantly the duct work and return air facility.

Warning:

Do not alter this appliance in any way other than speci-

fied in these instructions. Doing so may void your warranty.

LOCATING YOUR FURNACE

The furnace is to be installed maintaining the clearances 

specified in the following illustrations.

CLEARANCES

Model

1602 - 22”

1802 - 19”

Model

1602 - 12”

1802 - 8”

Model

1602 - 20”

1802 - 25”

Model

1602 - 15”

1802 - 28”

COMBUSTIBLE WALL

COMBUSTIBLE WALL

FLUE

(TOP VIEW)

MINIMUM CLEARANCES 

TO A COMBUSTIBLE 

WALL

CAUTION:

DO NOT store

combustible or

flammable materials or 

liquids near the

furnace.

REDUCED CLEARANCES

NFPA guidelines and most codes permit reduced clear-

ances  to  combustible  walls  and  ceilings  if  adequate 

protection  is  added.  A  common  mistake  is  to  assume 

that  sheet  metal,  masonry,  or  millboard  placed  directly 

against a wall protects it. Materials installed in this man-

ner actually provides very little protection. These materials 

are good heat conductors, so they will be almost as hot 

on their back side as they are on the exposed side. There-

fore, the combustible wall behind is still a fire hazard.
A wall can be kept cool using these items but only if they 

are mounted and spaced out from the wall by an inch 

or two to allow free air circulation behind the protective 

panel. The protective panel should also have a gap be-

tween the floor and ceiling.
Three rules to follow when constructing wall protectors:

1.  Non-combustibility of all materials including mount-

ing and supporting.

2.  A well ventilated air space between protector and wall.
3.  Sufficient strength and rigidity so that the protector 

and air space will be durable.

PROTECTIVE COVERING 

AND ALL SUPPORTS MUST 

BE NON-COMBUSTIBLE

CONSTRUCTING 

NON-COMBUSTIBLE 

WALLS

2” FROM FLOOR

2” FROM CEILING

1” AIR SPACE

Do not place the furnace directly on a combustible floor. 

If you are placing it on a combustible floor, an approved 

fire  retardant  material,  equivalent  to  3/8”  UL  Listed  mill-

board, should be placed under the unit. The material must 

extend at least 16 inches beyond the front of the unit and 

8 inches on either side of the fuel loading door opening. 

It  must  also  extend  underneath  the  chimney  connector 

and to each side of the connector by at least 2 inches.

Summary of Contents for Clayton 1602G

Page 1: ... 37380 www usstove com SAFETY NOTICE If this furnace is not properly installed a house fire may result For your safety follow these installation instructions Contact local building or fire officials about restrictions and installation requirements in your area This furnace must be installed by a qualified technician Keep these instructions for future reference Installation Operator s Manual Safety...

Page 2: ...himney to which the unit is attached The actual area that this unit will heat depends on factors such as the conditions of the building heat loss type of construction amount of insulation type of air movement the location of the unit and more importantly the duct work and return air facility Warning Do not alter this appliance in any way other than speci fied in these instructions Doing so may voi...

Page 3: ...EMOVAL 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 rela tively cool chimney flue of a slow burning fire As a result creosote residue accumulates on the flue lining When ignited this creosote makes an extremely hot fire The chimney connector and chimney should be inspected at least twic...

Page 4: ...mum of 1 4 to the foot At no time should the pipe turn downward toward the chimney or run horizontal 2 There should be no more than two 90 degree elbows 3 The connector pipe should never be longer than six feet If it is absolutely necessary to make a run of more than six feet not recommended use extra support brackets every 3 feet 4 The connector pipe should never be reduced to a smaller size than...

Page 5: ...sq in in order to insure proper furnace performance Failure to provide return air ducts of the specified size will void your warranty A filter should be installed in the cold air return Furnace fil ters should be checked and cleaned replaced regularly If return air is not provided the warm air distributed into your home will be restricted and the efficiency of the furnace is decreased Without a re...

Page 6: ...nting brackets on the left side of the door frames as illustrated The slots in the brack ets and latches are for door seal adjustment Make the proper adjustments then tighten the nuts The door s gas ket should be snug against the door frame on the furnace Feed Door Illustration Ash Door Illustration 1 Feed Door Latch 1 Ash Door Latch 4 1 4 20 x 3 4 Hex Bolt 4 1 4 20 Kep Nut SHAKER GRATE HANDLE BRA...

Page 7: ...back The conduit assembly should already be attached to the limit control otherwise do so then make the correct wiring con nections to the limit control See wiring diagram 4 Next mount the junction box and insulation using two of the 10 x 1 2 screws provided Make a small slice in the 5 x 5 in sulation to allow the wires from the draft blower to protrude then Install it between the cabinet back and...

Page 8: ...ront of the furnace Then mount and secure the draft blower to the adapter with the three 10 24 Kep nuts Plug the blower into the out let on the front of the furnace 1 Draft Blower 1 Draft Blower Adapter 2 1 4 20 x 1 Hex Bolt 2 1 4 20 Lock Nut 3 10 24 Kep Nut FIREBRICK AND BAFFLE REPLACEMENT BAFFLE BRICK REPLACEMENT If baffle replacement is necessary slide the baffle out until you can access the nu...

Page 9: ...ng with a good bed of coals in the morning Open by pass damper 1 Innormalshaking onlyrockthegratesasmallamount to sift ash through Do not agitate the fire bed too often This practice will waste coal If glowing coal is visible in the ash pan you have shaken to much 2 Remove all ashes every day from ash pit CAUTION Ashesshouldbeplacedinametalcontainerwith a tight fitting lid The closed container of ...

Page 10: ... extinguisher into the firebox After chimney fire is over completely inspect system for damage before further use NEVERthrowwateronthefireoratthefurnace asrapidly expanding steam could result in a severe scalding Slow fires It is not recommended burning the Clayton furnace any more than necessary early in the fall and late spring as you cannot keep the firebox hot enough without overheating your h...

Page 11: ...cap is not too close to the top of the chimney D Check chimney draft make sure chimney flue pipe is clean and chimney is of adequate height E Make sure you re not suffocating the fire with exces sive amounts of unburned wood F Slide baffle should be pulled out prior to load door opening 4 Problem Distribution blower vibrating Solution A Tighten blower wheel to motor shaft B Check for bad fan beari...

Page 12: ...12 USSC PARTS DIAGRAM 11 12 13 16 15 17 14 7 10 5 2 3 6 32 31 4 3 2 1 37 3 8 9 24 26 25 27 17 16 3 19 18 20 28 29 30 36 21 22 34 34 35 23 33 ...

Page 13: ...3 86607 1 1 20 Lock Nut 1 2 13 83444 2 21 Gasket Flue Collar 88032 1 22 Flue Collar 40246 1 23 P Flue Collar Ring Flue Collar Ring 1800 22761 23958 1 1 24 Smoke Curtain 23800 1 25 Smoke Door Clip 23787 2 26 Carriage Bolt 1 4 20 x 1 1 4 Long 83445 2 27 Kep Nut 1 4 20 83250 2 28 P Cabinet Side Left Cabinet Side Front Left 1800 68821 68962 1 1 29 P Insulation Side Insulation Side 1800 C98771 23977 2 ...

Page 14: ...urn and or filter box should be incorporated into your furnace in stallation A cold air return or filter box will increase the life of your blowers and offer filtered distribution air for your home U S Stove offers the model UFB908 as an option and can be purchased from your local dealer The UFB908 utilizes a standard 16 x 20 filter that can be purchased from your local dealer or any hardware duct...

Page 15: ...l The installation is now ready to be plumbed to your exist ing hot water system Choose one of the three methods described in the Hot Water Coil instructions 6 Remove knockouts from the access panel and re attach to the furnace enclosure Have a qualified plumber connect your domestic hot water pipe to the coil with the appropriate fittings DR6 6 DRAFT REGULATOR KIT OPTIONAL KIT In the unlikely eve...

Page 16: ... method with the highest portion of your fire bed in the center of the firebox The first flames will be long and generally orange or yellow and produce quite a bit of smoke As the gases burn off the flames become shorter change color and produce less smoke Once the fire is WELL ESTABLISHED add coal to the center of the firebox forming the cone Burning in this fashion allows heat to drive off the v...

Page 17: ...ew minutes until the volatile gases have burned off It is not necessary to shake down the ashes each time you refuel the furnace Experience will be your best teacher BULLETIN RC454 A GUIDE TO BURNING COAL IN YOUR FURNACE BANKING THE FIRE For extended operation such as overnight the fire will need to be banked To do so heap coal up along the sides and back of the firebox so that the fire gradually ...

Page 18: ...18 USSC NOTES ...

Page 19: ...19 USSC NOTES ...

Page 20: ...uture reference When placing an order or for warranty claims please provide the following information found on the Certification Plate located below the ash door PART NUMBER PART DESCRIPTION MODEL NUMBER 1602 1802 SERIAL NUMBER______________ United States Stove Company 227 Industrial Park Road P O Box 151 South Pittsburg TN 37380 423 837 2100 Customer Service 800 750 2723 Repair Parts 888 299 1440...

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