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5

S

AFETY 

P

RECAUTIONS

 

WARNING! 

 

 

  Make sure you read this manual and follow the recommendations contained in it to have 

the joy of operating your furnace for years to come. 

 Improper use and/or installation 

may void warranties.

  Always follow local code requirements and seek the help of 

qualified craftsmen when installing the furnace or systems associated with your furnace.   

 

  Do not operate this equipment for other than its intended purpose nor other than in 

accordance with the instructions contained in this manual and all other instructions 
accompanying the furnace.  

Do not modify the furnace in any manner! Any 

modification without express written consent of manufacturer will void warranty.

  

 

 

Failure to treat water properly will void your warranty. 

Earth Manufacturing pays for 

the water test for the 1

st

 3 years. 

 

  For furnaces covered by this instruction book, it is important to observe safety precautions 

to protect yourself from possible injury.  Among the many considerations, you are advised 
to:  

 

  Observe all safety stickers on the furnace.  

 

  This furnace must be wired by a qualified electrician in accordance with local and/or 

National Electric Codes and must have a power ground.  

 

  Never use any type of petroleum product, petroleum based product, charcoal starter, 

lighter fluid, lantern fuel, kerosene or any other flammable accelerant to start your furnace. 

  

  KEEP ALL SUCH LIQUIDS WELL AWAY FROM FURNACE WHEN IN USE 

 

  Keep antifreeze, which is flammable, well away from the furnace.  Use only non-toxic 

antifreeze in the unit.  Test antifreeze and other chemicals annually. 

 

  The use of treated wood (painted, treated, etc) and any other salvaged material that can 

emit toxic gases into the environment and may be corrosive toward the components of the 
appliance is NOT ALLOWED and eliminates the rights of the warranty. 

 

  DO NOT BURN GARBAGE, HOUSEHOLD WASTE OR YARD WASTE IN THE 

FURNACE.  In most areas, this is illegal.  The furnace is designed to burn seasoned 
cordwood and coal.  

Burning non-approved materials can reduce the life of the 

furnace and will void your warranty.

 

 

  Open-loading door – when opening the door, pause momentarily between the first latch 

and the safety latch to allow any combustion gases to burn off. 

 

  Earth Manufacturing strongly recommends using a spark arrestor with your furnace. 

 

  DO NOT OPERATE THE FURNACE WITH THE DOOR OR ASH RECEPTACLE DOOR 

OPEN.  Always latch the doors securely.  If the ash door is open for any extended period 
of time, it will cause over-firing of the fire and boiling. Always remember to keep your 
hinges oiled. 

 

  Always use proper care when installing, operating and maintaining the furnace. 

Summary of Contents for Bear Cub 305 Series

Page 1: ...Bear Cub 305 Series ...

Page 2: ...should enjoy for many years Please take time to read over the information in this manual and follow the recommendations contained in it to have the joy of operating your furnace for years to come Improper use and or installation may void warranties Always follow local code requirements and seek the help of qualified craftsmen when installing the furnace or systems associated with your furnace We t...

Page 3: ...CAUTIONS PAGE 5 GETTING TO KNOW YOUR FURNACE COMMON QUESTIONS PAGE 7 FURNACE OVERVIEW PAGE 8 HOW DOES IT WORK PAGE 10 INSTALLATION PAGE 10 STARTING THE FURNACE PAGE 11 MAINTENANCE PAGE 11 TROUBLE SHOOTING PAGE 12 WARRANTY INFORMATION PAGE 14 WARRANTY EXCLUSIONS PAGE 15 WARRANTY DOCUMENTATION FORM PAGE 16 ...

Page 4: ... off of rising gases before air exits the fire area Easy straight up down cleaning No elbows or angle areas to clean or collect condensation or rust out INCLUDED WITH FURNACE Automatic Damper system Ranco digital thermostat Handy front panel water level check and fill system Light switch on the front Completely wired plumbed Unit MUST BE grounded DOORS ALWAYS KEEP DOORS AND HINGES ORDERED Wood Doo...

Page 5: ...troleum product petroleum based product charcoal starter lighter fluid lantern fuel kerosene or any other flammable accelerant to start your furnace KEEP ALL SUCH LIQUIDS WELL AWAY FROM FURNACE WHEN IN USE Keep antifreeze which is flammable well away from the furnace Use only non toxic antifreeze in the unit Test antifreeze and other chemicals annually The use of treated wood painted treated etc a...

Page 6: ...TAINER OF ASHED SHOULE BE PLACED ON A NON COMPUSTIBLE FLOOR OR ON THE GROUND ALL COMBUSTIBLE MATERIALS SHOULD BE DISPOSED OF BY BURIAL IN SOIL OR OTHERWISE DISPERSED ASHES SHOULD BE RETAINED IN THE CLOSED CONTAINER UNTIL ALL CINDERS HAVE THOROUGHLY COOLED Installation to include wiring and plumbing and operation must follow Federal Provincial State and Local Codes electrical plumbing fire and buil...

Page 7: ...furnace is hooked up correctly leave your pump on your existing indoor furnace will back heat the wood furnace preventing it from freezing The cost of your indoor furnace back heating your outdoor is very minimum cost if everything is very well insulated Here are a few more options for you 1 You can set up your unit with a bypass to not heat the home and circulate the water within itself and the b...

Page 8: ...ther conditions The light is a 150 watt halogen light for illuminating the area around the front of the furnace 4 The wood fill door Model 305 has a 20 x 20 door with double latch safety and heat shield 5 The automatic forced air fan damper system is on the wood door on all models It is activated by the digital read out thermostat to kick on and off at the factory pre set temperature Your thermost...

Page 9: ...to ground your furnace Note This picture shows the pump already installed If you ordered the furnace with a pump from the factory the pump will be installed and wired If you did not order a pump with your furnace then you will need a qualified installer to install all fittings and wire the pump 3 Shown is a Wasser 3 speed pump pulling water out of the upper port Based on the needs of the home owne...

Page 10: ...installation and start up There can be many variations in proper installation Here are some general guidelines to follow Setting the Furnace Depending on your application and site conditions you may choose a pre poured pad or you may choose to pour a concrete pad Pad size will depend on customer preference It should be no smaller than 4 foot by 5 foot You may choose to pour a larger one based on y...

Page 11: ...asier to repair the lines while they are cold than when you have hot water flowing through them When first starting up the furnace build a manageable fire to get the water up to temperature Once the water has gotten to your desired temperature setting then you can fill it full of wood and start a normal operation Water will come out of the overflow as it expands MAINTENANCE The front wood door has...

Page 12: ...hole The fire may be getting too much air This is a trial and error situation adjust the tear drop damper Ashes may be built up too much in the fire chamber Before you stoke the fire make sure you take a shovel or some device and rake the coals towards the middle of the furnace Ash build up around the edges work to insulate the fire box from the fire and do not let it heat like it was designed to ...

Page 13: ... time can be based on length of run to the house and back Shut the water off and close the drain Tighten the flange and open all valves LINES NOT GETTING HOT THROUGHOUT ENTIRE SYSTEM If you have put a tee into the system then water may not be flowing through one of the appliances You may have to re plumb the system so that there is a continuous loop from the furnace to the house and back The pump ...

Page 14: ...wner 8 The life of your furnace depends upon proper maintenance You must submit a water sample to Wood Boiler Solutions LLC for professional lab analysis You must follow their recommendations for chemicals and brands Earth Outdoor Wood Furnaces will provide the test kit for the 1st 3 years You may purchase the water sample analysis kit from their store at www diswebsites com woodboilersolutions st...

Page 15: ...portation and or packaging costs 11 Warped doors or grates 12 Damage to the thermostat due to over heating from intensive and non approved use such as ash door left open or the fan left off during high fires 13 Failure of the water pump resulting in an over heating of the furnace 14 Misuse or incorrect use 15 Insufficient or inadequate relation between the nominal power of the equipment and the he...

Page 16: ..._________________________ Serial Number __________________________________________ Date of Purchase ________________________________________ Date of Installation _______________________________________ Installer _______________________________________________ Purchased from _________________________________________ Please keep this manual with all other important papers The information in this man...

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