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WARNING- RISK OF FIRE:

• Do not operate with flue draft exceeding .08 water column inches (19.9 Pa).

• Do not operate with fuel loading or ash removal doors open.

• Do not store fuel or other combustible materials within marked installation clearances.

• Inspect and clean flues and chimney regularly.

DANGER: Risk of Fire and Explosion.  Do not burn garbage, gasoline, naphtha, engine oil, or other flammable liquids/inappropriate 

materials.
WARNING: 

• NEVER use galvanized pipe in your chimney connection, it produces poisonous gases when subjected to extreme

temperatures.

• USE only lined masonry or manufactured Class “A” HT2100 All Fuel Chimney for your furnace.

• INSPECT chimney system periodically for structural integrity.

• CLEAN the chimney system regularly to prevent creosote accumulation.

• NEVER leave the ash pan in your furnace during operation.

• DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.

Duct 

Runs 

Ductwork should be designed so the external static pressure on high speed does not exceed .02 water column inches while developing 

air velocities of 450 - 600 feet per minute at the registers.  The heat outlet area should never be less than two 8-inch round pipes or 

100 square inches.  The furnace can be installed with a cold air return system, or the return air can be drawn from the basement.  If the 

return air is drawn from the basement, you will have to install 3 “open and close” air register vents in the return air duct connected to your 

existing furnace; the air will take the path of least resistance without using ductwork to connect the two together.  The return air system 

should be a minimum of 10% larger than the heat outlet to readily transfer the cold air back to the furnace.  Avoid using 90° elbows in 

duct runs; 45° elbows provide better airflow and less resistance.  CAUTION: The warm air supply outlet of the supplementary furnace 

should not be connected to the cold air return inlet of the central furnace, because a possibility exists for components to overheat and 

cause the central furnace to operate other than intended.

Canadian Requirements for Supplemental/Add-On Furnaces 

• DO NOT USE DUCT ELBOWS HAVING AN INSIDE RADIUS OF LESS THAN 6 inches (150mm) ON OIL,

ELECTRIC, OR GAS FURNACES.

• DO NOT CONNECT TO A DOWNFLOW FURNACE.

• DO NOT CONNECT DUCTWORK SO THAT A REVERSE FLOW IS POSSIBLE.

• OPERATE THE GAS/OIL/ELECTRIC/ FURNACE PERIODICALLY TO ENSURE THAT IT WILL OPERATE

SATISFACTORILY WHEN NEEDED.

• CERTIFIED FOR INSTALLATION WITH APPROPRIATE DUCTWORK CONFIGURATIONS ONLY.

• DO NOT RELOCATE OR BYPASS ANY OF THE SAFETY CONTROLS IN THE ORIGINAL GAS/OIL/ELECTRIC

FURNACE INSTALLATION.

• DO NOT CONNECT TO ANY GAS FURNACE THAT HAS NOT BEEN CERTIFIED INITIALLY AS COMPLYING

WITH CAN/CGA-2.3.

• THE OPERATION OF THE GAS FURNACE MUST BE VERIFIED FOR ACCEPTABLE OPERATION BEFORE AND AFTER

INSTALLATION OF THE ADD-ON APPLIANCE BY A GAS FITTER WHO IS RECOGNIZED BY THE

REGULATORY AUTHORITY.

• DO NOT CONNECT TO ANY GAS FURNACE THAT IS NOT EQUIPPED WITH AN AIR-CIRCULATION BLOWER,

OR TO A CHIMNEY OR VENT SERVICING A GAS FURNACE OR GAS APPLIANCE.

The add-on unit should only be installed on a furnace duct system and chimney that are in good operating condition.

If exhaust fans are installed in the storage area they should not create negative pressures in the room where the solid fuel-burning 

appliance is located.

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Summary of Contents for Shelter Furnace SF1000

Page 1: ...G INDOOR FURNACE MODEL SF1000 Manufactured by Shelter Furnace 10950 Linpage Place Saint Louis MO 63132 1 800 875 4788 MADE IN USA Revision II June 2017 Certified to UL391 Sept 2010 CSA B366 1 2014 Con...

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Page 3: ...ut Wood that is properly cut and stored to dry will produce more BTUs and higher heat output than wood that has a higher moisture content Wood with higher moisture content will create creosote in the...

Page 4: ...ve in perfect condition Any visible damage should be noted on the freight bill at the time of delivery If upon unpacking your Shelter Furnace you find damage has occurred during transit notify your su...

Page 5: ...12 14 14 14 15 15 15 15 15 Furnace Diagram with Parts List 17 Blower Motor Assembly Diagram 18 Wiring Diagram 19 Troubleshooting 20 Warranty Information 25 DOUBLE CHECK TO MAKE SURE YOU HAVE RECEIVED...

Page 6: ...cognized safety standard and within clearances specified on the nameplate When in a parallel installation the static pressure of the central furnace plenum may not exceed 0 15 water column inches and...

Page 7: ...coming off the top of the appliance can only go up or horizontal to connect into the main supply duct Never run the plenum down as this will create a heat buildup in the furnace causing the blower to...

Page 8: ...your convenience your Shelter Furnace has been factory assembled and the electrical control assembly pre wired 1 Fasten the right and left side angle brackets to the circulation blower using 4 20 bolt...

Page 9: ...ke sure the filter box is tightly pressed to the back of the furnace Use 4 1 4 bolts included to firmly attach the filter box to sides of furnace Filter Box 1 4 Bolts Panel A Panel B Panel C Panel A 8...

Page 10: ...should point toward the furnace to form drip free connections thereby reducing the possibility of creosote leakage from the joints Installing a non UL listed heat reclaimer in the pipe is not recomme...

Page 11: ...discharge When using a brick chimney you must line the entire chimney with stainless steel liner The liner must be 6 for the SF1000 The diameter of the chimney stack should be consistent throughout th...

Page 12: ...gether The return air system should be a minimum of 10 larger than the heat outlet to readily transfer the cold air back to the furnace Avoid using 90 elbows in duct runs 45 elbows provide better airf...

Page 13: ...t Firewood should be stacked to provide a free flow of air between the logs thus allowing more rapid seasoning of the wood If wood is stored outdoors it should be completely covered year round to prot...

Page 14: ...on of these substances may release harmful toxic gases Do Not Burn Garbage Lawn clippings or yard waste Materials containing rubber including tires Materials containing plastic Waste petroleum product...

Page 15: ...firing your furnace This type of occurrence is usually symptomatic of heat demands in excess of furnace capacity Contact an authorized professional to determine if your Shelter Furnace has been improp...

Page 16: ...With the cover closed no air is introduced into the firebox then the fire dies preventing the furnace from possible overheating and damage Creosote Formation and Need for Removal When wood is burned...

Page 17: ...d will produce a higher BTU output and a longer burn time Refer to the nameplate on furnace for additional information WARNING RISK OF FIRE Do not operate with the flue draft exceeding 08 water column...

Page 18: ...SEMBLY FCE FDA 3 1 FURNACE SHELL FC10SHELL 4 2 SIDE PANEL ASSEMBLY FCE 10SP 5 1 BLOWER ASSEMBLY FC3SPMOTOR 5a 1 BLOWER MOTOR FCDD037P 5b 1 BLOWER HOUSING FCBH 6 1 FILTER BOX BOTTOM WAF FBB 7 2 FILTER...

Page 19: ...ram PARTS LIST DESCRIPTION QTY ITEM BLOWER WHEEL 1 1 BLOWER HOUSING 1 2 MOTOR CAPACITOR 1 3 BLOWER MOTOR 1 4 2 1 2 3 PARTS LIST DESCRIPTION QTY ITEM BLOWER WHEEL 1 1 BLOWER HOUSING 1 2 MOTOR CAPACITOR...

Page 20: ...A B B FAN LIMIT CONTROL WALL THERMOSTAT 120V AC 24V AC TRANSFORMER RELAY DRAFT BLOWER MOTOR BLOWER MOTOR 120V AC POWER SUPPLY WHITE BLACK GREEN BLACK WHITE RED RED RED YELLOW BLACK ORANGE WIRING DIAGR...

Page 21: ...r vibrates during operation Screw on squirrel cage is not tight Check squirrel cage alignment and position so that it does not drag on the housing during rotation then tighten the screw sufficiently t...

Page 22: ...rn air duct system Install filter box on furnace Install filter in filter box Filter box not installed or no filter in filter box 5 Problem Smoke from the fire chamber is puffing back through the forc...

Page 23: ...nstall flue gas thermometer and maintain stack temperatures between 300 and 400 F See 9 Insufficient chimney draft 8 Improper connection in stove pipe causing air leakage or a structural defect in the...

Page 24: ...truction outside chimney such as a tree Flue is located too close to the peak of the roof or does not rise above it to provide the proper draft Backdraft damper is in the closed position 9 Problem Odo...

Page 25: ...of insect infestation such as burrows or holes avoid using if possible Do not store wood indoors Possible Causes Remedies 13 Problem Circulation blower will not turn on Defective fan limit control Che...

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Page 27: ...ick and door gaskets are excluded from this warranty In order to exercise the aforementioned warranty a certified professional must determine the appliance part to be defective He or she must submit a...

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