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7

G

ETTING TO 

K

NOW 

Y

OUR 

F

URNACE

 

 

C

OMMON 

Q

UESTIONS

 

 

I

S IT SAFE

Having the furnace outside eliminates the possibility of causing a fire in your home. Also the oversize 
door makes loading easier. 
 

W

HAT CAN 

I

 SIT THE FURNACE ON

A 4 to 6 inch concrete pad is recommended, whether preformed or poured. 
 

H

OW FAR AWAY CAN IT BE

1. Safety First! 2. Check with your insurance company to make sure you are in compliance with your 
policy. Normally you should visit your wood furnace twice a day to check the fire and fill with wood.  You 
will want to have easy access to this location with a truck or tractor to replenish the wood when 
needed.  

 

W

HAT IF THE ELECTRICITY GOES OUT

The Earth Outdoor Wood Furnace uses very little electricity which can be supported by a small 
generator. You can run a regular inexpensive extension cord to the unit and unplug the furnace from 
the outlet on the back of the furnace and plug into a small generator. Problem solved. However, when 
most homes lose electricity they have no way to power the indoor blower for their duct work.  Either way 
you will need something to back up your existing home as well as the wood furnace.  Another option 
would be to use an extension cord on a box style fan and place the fan so that it would blow into the 
return vent of your duct work.  Then close off the vents to rooms you can afford to let go cold.  
Otherwise you will need to look into a system that will power your indoor blower.  Consult electrical 
contractors for most of that type of work. 
 

W

HAT COMES WITH THE FURNACE

Fan Control Center comes wired and ready for your connection. 

460 cfm Fan Blower 

Front door forced air damper assembly, wired and ready. 

Snap-disc thermostat on out-going duct; wired to 460 cfm fan. 

 

W

HAT DOES NOT COMES WITH THE FURNACE

Chimney extension and spark arrestor/chimney cap 

Rear fan duct box and all duct work. 

In home thermostat and thermostat wire. You will need enough thermostat wire to run 
from your thermostat to the fan control center on the back of your furnace. 

110 electric wire from your power source to the back of the furnace. 

 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for Bear Cub 305-FA Series

Page 1: ...Bear Cub 305 FA 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: ...E 4 SAFETY PRECAUTIONS 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 12 WARRANTY INFORMATION PAGE 13 WARRANTY EXCLUSIONS PAGE 14 WARRANTY DOCUMENTATION FORM PAGE 15 ...

Page 4: ... 1 8 round chimney Sets near the back of the firebox causing burn 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 Snap Disc High Limit Switch Completely wired Unit MUST BE grounded DOORS ALWAYS KEEP DOORS AND HINGES ORDERED Wood Door 20 x 20 easy ope...

Page 5: ...l 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 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 applia...

Page 6: ...TIL 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 building codes The Earth furnace is not intended to be the only source of heat However a back up system should always be in place and ready for use The manufacturer is not liable for damages or property in the case of mis...

Page 7: ...ved However when most homes lose electricity they have no way to power the indoor blower for their duct work Either way you will need something to back up your existing home as well as the wood furnace Another option would be to use an extension cord on a box style fan and place the fan so that it would blow into the return vent of your duct work Then close off the vents to rooms you can afford to...

Page 8: ... automatic forced air fan damper system is on the wood door It is activated by the indoor thermostat Your thermostat can be adjusted to various temperature settings The damper unit is actually a double damper system in that the inside damper drops shut when the fan is off Forced Air Automatic Damper Wood Door ...

Page 9: ...9 FURNACE OVERVIEW BACK Service Duct to house 12 w x 7 h Note Serial is located on top of Service Duct Fan Control Center 460 cfm Blower Return Air Duct Flange 19 w x 22 h ...

Page 10: ...your out going heat duct straight into your home through a window or a wall as near the center of your home as possible and into your largest room family living dining etc Put a register where the duct comes into your home Now connect your return duct system to the bottom left back where the 460 cfm fan is see diagram B Important Bring your return duct only from the furthest ends of your house awa...

Page 11: ...11 ...

Page 12: ...himney is a 5 heavy wall rolled steel that sticks straight down into the fire box Do not worry about hitting it with wood It should be cleaned about once a month A 5 round chimney brush will work for this job You may use a chimney cap with the furnace to keep rain out It is recommended that you at least cover the chimney during the summer months when the furnace is not in use to keep rain birds an...

Page 13: ...s which covers parts and labor If we cannot repair the leak we will send you a new furnace 6 Years 4 10 are pro rated as follows for coverage of parts labor Year 4 60 Year 5 50 Year 6 40 Year 7 35 Year 8 25 Year 9 15 Year 10 10 7 The cost of a service call is not covered after 3 years Service calls for installation related problems and not problems with the furnace itself will be charged to the ow...

Page 14: ...tion that exceeds use limits 9 Transportation and or packaging costs 10 Warped doors 11 Damage to the unit due to over heating from intensive and non approved use such as wood door left open or the fan left off during high fires 12 Heat temperature shall not exceed 200 degrees 13 Misuse or incorrect use 14 Insufficient or inadequate relation between the nominal power of the equipment and the heat ...

Page 15: ...____________________ Earth Model ____________________________________________ Serial Number __________________________________________ Date of Purchase ________________________________________ Date of Installation _______________________________________ Installer _______________________________________________ Purchased from _________________________________________ Please keep this manual with al...

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