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HARDY MANUFACTURING CO., INC                          (MODEL KB125)                        PAGE  2 

 

 

1-2   Heater Component Parts  

Model KB125 

         Standard Components 

Legend 

 Part No. 

Description 

 
1   

9125.50 

Continuity Probe 

2   

2004.00 

Ground Fault Interrupter Receptacle 

3   

2004.30 

Terminal Block Assy. 

4   

506.30 

SS Anti-Stratification Circulator 

 

 

(Can Not Be Used To Supply System Loop) 

5   

2002.69 

Combustion Blower 

6   

2065.10 

Temperature Logic Controller 

(Not Visible)

 

7   

2000.65 

Time Delay Relay 

8   

2001.05 

Damper Solenoid 

9   

2000.53 

(2) Low Water Lockout Relay 

10   

2000.55 

(2) Socket For Low Water Lockout Relay 

11   

607.42 

3/4” Boiler Fill/Drain 

(Not Visible)

 

12   

607.45 

(3) 1” Brass Ball Valve 

6

12 

12 

11 

10 

12 

System Loop 

Return 

System Loop 

Supply 

Summary of Contents for KB125

Page 1: ...ION AND OPERATING INSTRUCTIONS FOR THE HARDY OUTSIDE WOOD BURNING HEATER Model KB125 HARDY MANUFACTURING COMPANY INC 12345 ROAD 505 PHILADELPHIA MS 39350 PHONE 601 656 5866 FAX 601 656 4559 www hardyheater com Rev 9 22 2014 ...

Page 2: ...THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 3: ...is manual will provide you with a good basic understanding of the installation and operation of this heater THIS MANUAL INCLUDES IMPORTANT SAFETY INFORMATION Your new heater should have the following 1 Owner s manual complete with installation and hook up instructions 2 Warranty return warranty card 3 2 double wall sections of smoke stack ring 4 Ash shovel 5 2 flue brush with handle 6 Fire poker 7...

Page 4: ...ANY INC 12345 ROAD 505 PHILADELPHIA MS 39350 PHONE 601 656 5866 www hardyheater com Please keep this manual with all other important papers The information in this manual is necessary for the installation operation and proper use of this unit If you should ever have a problem or question please refer to this manual or have it available when you call your Hardy Dealer or Hardy Manufacturing Company...

Page 5: ...um based product charcoal starter lighter fluid or any other flammable accelerant to start your unit Fuel Clean seasoned oak hardwood Clean wood means wood that has no paint stains or other types of coatings and wood that has not been treated with preservatives including but not limited to copper chromium arsenate creosote or pentachlorophenol Never leave the door open always latch the door secure...

Page 6: ... MODEL KB125 iv THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 7: ...ions for recommended loading times and amounts 4 STARTERS Do not use lighter fluids gasoline or chemicals 5 LOCATION It is recommended that the unit be located with due consideration to the prevailing wind direction 6 Always remember to comply with all applicable state and local codes Outdoor Furnace Manufacturers Caucus Furnace should be located no less than 100 feet from any residence not served...

Page 8: ...late heat exchangers can be used for pools dairies and other domestic hot water needs How do the Thermostat Controls work The only visible addition to the heating system inside your home is the thermostat which is located next to your existing thermostat The two thermostats are installed so that if the outside wood burning heater is not in operation your existing unit can be used to maintain your ...

Page 9: ...a gov burnwise How to Use a Moisture Meter Video http www youtube com watch v jM2WGgRcnm0 EPA offers tips on how to properly use a moisture meter to test firewood before using in a wood burning stove or fireplace Wet wood can create excessive smoke which is wasted fuel Split Stack Cover and Store Video http www youtube com watch v yo1 Zrh11s EPA offers four simple steps to properly dry firewood be...

Page 10: ...7 Installation of Smoke Stacks and Condenser Stack 10 2 8 Filling the Heater with Water 11 2 9 Priming the Pump 12 SECTION III Connection to Central Heating AC System 3 1 Connection to Central Unit with Existing Blower Relay 13 14 3 2 Location of Heating Coil 15 16 SECTION IV Connection to Hydronic Heating Systems Baseboard 4 1 Connection to Hydronic System 17 SECTION V Plumbing Options for Domest...

Page 11: ...r Burning 21 7 5 Ash Removal 21 7 6 Water Circulation System 22 7 7 Combustion Air Blower Assembly 22 7 8 Low Water Sensor 22 7 9 Temperature Logic Controller 22 7 10 Low Water Lockout Relay 22 7 11 Timer 22 7 12Time Delay Relay 22 SECTION VIII Heater Maintenance 8 1 Weekly Maintenance 23 8 2 Monthly Maintenance 24 8 3 Extended Period Shut Down and Start Up 25 ...

Page 12: ...4 in Length 15 30 Moisture Cured between 6 to 9 months Any round wood over 7 in diameter must be split at least once Wood Load Capacity 10 to 15 pounds cubic ft Firebox is approximately 7 Cubic Feet Wood weight is approximately 80 to 100 pounds For Outdoor Use Only Electrical Rating 115 VAC 60 HZ 1PH MFS 20 AMP MCA 20 AMP Clearance to Combustibles Top Rear Sides 18 Chimney Connector 18 Front 48 Fl...

Page 13: ...06 30 SS Anti Stratification Circulator Can Not Be Used To Supply System Loop 5 2002 69 Combustion Blower 6 2065 10 Temperature Logic Controller Not Visible 7 2000 65 Time Delay Relay 8 2001 05 Damper Solenoid 9 2000 53 2 Low Water Lockout Relay 10 2000 55 2 Socket For Low Water Lockout Relay 11 607 42 3 4 Boiler Fill Drain Not Visible 12 607 45 3 1 Brass Ball Valve 6 5 3 2 1 7 12 8 12 11 10 9 12 ...

Page 14: ...HARDY MANUFACTURING CO INC MODEL KB125 PAGE 3 1 2 Heater Component Parts Model KB125 Standard Components continued Legend Part No Description 1 2065 50 15 Turbulators 2 7165 99 Bypass Damper 2 1 ...

Page 15: ...Y MANUFACTURING CO INC MODEL KB125 PAGE 4 1 2 Heater Component Parts Model KB125 Standard Components continued Legend Part No Description 1 3105 17 4 Refractory Grates 2 2165 31 2 Front Back Fire Bricks 1 2 ...

Page 16: ...uld be installed on a concrete pad with a recommended minimum dimension of 34 W x 61 L x 4 D On the plumbing end of the heater you will need to bring up through the pad a 4 water tight chase pipe to route your water lines and electrical lines from the structure to be heated to the furnace Reference the illustration below for pad layout and ideal placement of 4 pipe Concrete Pad Top View 4 pipe sho...

Page 17: ... a trench wide enough to accommodate a 4 water tight pipe or other insulation means All plumbing and electrical lines should be installed inside the 4 water tight pipe or other insulation means for a standard installation This pipe will run from the rear of the unit to the location to be heated Contained inside the 4 watertight pipe is 2 water lines and electrical supply wire The listing below des...

Page 18: ...tall a 20 amp circuit with 12 2 W Gnd NM Type UF wire from the power source through the 4 watertight pipe or other means to the heater This wire will connect to the LINE Terminals on the GFCI Receptacle located on the rear of the Heater The breaker installed at the power source should be a 20 amp GFCI 2 5 Wiring Diagram This equipment must be installed in accordance with the National Electrical Co...

Page 19: ...HARDY MANUFACTURING CO INC MODEL KB125 PAGE 8 2 5 Wiring Diagram continued ...

Page 20: ...er with 1 fittings Heater with hull and stacks removed to show connections 2 6 Plumbing Connections Connection to Heating System 1 The pipe that will supply the heating system is connected to the first tee connection above the pump 2 The pipe that will carry the return water from the heating system is connected to the second tee fitting after the pump ...

Page 21: ...e another Then place the stack ring onto the top section Last install the combined stacks into the units flu gas exit hole on the roof Pay close attention while working above the unit top when installing the stacks Don t apply to much pressure or drop any tools as the stainless steel roof can be scratched and bent F Smoke Stack Do not seal Vent Cap To Vent Pipe Vent Pipe Smoke Stack Collar ...

Page 22: ...per million of chloride salt in the water as acceptable for drinking experience has shown that chloride levels as low as 45 parts per million will eventually cause stress corrosion cracking in stainless steel tanks when water is heated It is therefore required to use rain water or bottled water with chloride content of less than 15 parts per million or test the water supply for chloride to assure ...

Page 23: ...uously This circulator should not be modified and must not be used in conjunction with any other application You will need to open the supply valves and the return valves on the pump Plug the power cord for the circulator pump into the GFCI receptacle and listen for the air bubbling back into the water tank Once you no longer hear air bubbling slowly close the supply valve above the pump until you...

Page 24: ...arked R and the white wire to the screw terminal marked W At the central air handler where you added the relay connect the white wire that is going to the new heat only wall thermostat to terminal 7 of the new relay along with a short jumper wire that will connect to terminal 6 of the new relay Next find the red wire going from the air handler control wiring to the original wall thermostat Cut thi...

Page 25: ... 115V 24V TR TC R1 R2 T2 FS 1 2 4 5 6 7 8 R2 R2 R2 TG CONNECTION DIAGRAM SCHEMATIC DIAGRAM G R LOW VOLTAGE FIELD WIRING White Red White Red Green Green Red Legend R1 existing blow er relay R2 new control relay FS existing thermostat T2 New thermostat TC terminal strip C connection TR terminal strip R connection TG terminal strip G connection R existing thermostat R connection G existing thermostat...

Page 26: ...d Insulate Heating Coil in supply side of system and in a protected environment Package System Supply Air 3 2 Location of Heating Coil The following diagrams and pictures on this page and the following page show various methods of installing the heating coil in a forced air system ...

Page 27: ...cation of Heating Coil continued Supply Return Air Flow Air Flow Air Must be Filtered before passing through Heating Coil Supply Return Air Flow Air Flow Air Must be Filtered before passing through Heating Coil Vertical Flow System Horizontal Flow System ...

Page 28: ... the National Electrical Code The preferred method for connecting the Hardy KB125 Hydronic Heater to an existing hydronic system is by installing a p n 300 01 40 plate heat exchanger w 1 fittings into the return line of the existing boiler system Run 2 1 potable hot water lines from the wood heater to the existing hydronic system Add a properly sized circulator to the supply line and connect to th...

Page 29: ...xchanger for Domestic Hot Water To add domestic hot water to the KB125 hydronic heater a plate heat exchanger and pump can be added This plate heat exchanger will provide preheated water to the domestic hot water The preferred method is to mount a plate heat exchanger at the water heater and connect it as shown in the following drawing The pump will circulate heater water through the plate continu...

Page 30: ...per located on front left side of the heater and open the firebox door 6 Verify the blower switch is in the off position Put paper in the firebox over the grates 7 Add approximately 10 lbs of small kindling on top of the paper 8 Light the paper and close the firebox door 9 Flip the blower switch on Let it burn between 15 to 20 minutes 10 Open the firebox door and add 4 to 6 sticks of 2 to 4 split ...

Page 31: ... light will turn on This will begin the off delay timer that is set for 5 minutes 4 Open the ash door 5 Remove the ashes with the provided shovel 6 Close the ash door 7 Rake the coals around in the firebox 8 Confirm that the two holes in the fire grates are open 9 Load the heater firebox with the amount of wood needed for your application 10 Close the firebox door 11 Close the bypass damper 12 Fli...

Page 32: ...ure in the Firebox During startup of a new heater or the first time you operate an existing heater each year you will probably notice moisture in the firebox This is normal and should not cause alarm 7 4 Improper Burning Improper burning during the normal operation of the heater is normally caused by lack of combustion air or fuel in the firebox chamber 7 5 Ash Removal Ashes must be removed from i...

Page 33: ...ors water temperature as well as water level of the heater 7 10 Low Water Lockout Relay The low water lockout relay turns all combustion systems off until the heater is filled with water 7 11 Timer delay on break When the Temperature Logic Controller satisfies or the control switch is switched off it begins timing This prevents short cycling of the unit 7 12 Time Delay Relay The time delay relay i...

Page 34: ...r that is set for 5 minutes 5 Open the ash door and shovel the ashes out with the provided shovel 6 Close the ash door 7 Stir the coal bed in the firebox with the provided fire poker 8 Poke out the holes in the grates verifying the loose powder ash has been raked down through the grates with the provided fire poker 9 Load the heater with the amount of wood needed for your application 10 Close the ...

Page 35: ...l and burning wood to the left side of the firebox with the provided shovel 8 Remove the powder ashes on the right side of the firebox with the provided shovel 9 Open the ash door and remove the ashes with the provided shovel 10 Close the ash door 11 In rear of heater place ash scoop into slot below flue box door 12 Open flue box door on rear of heater 13 Close the bypass damper 14 Remove the tubu...

Page 36: ...tem control switch also turn off supply breaker from power source 4 Perform normal monthly maintenance schedule see monthly maintenance schedule section 8 2 Start Up of Heater After Extended Shut Down 1 Verify no creosote ash or other debris is obstructing air flow into or out of the combustion air blower air distribution tubes secondary heat recovery tubulators or smoke stacks 2 Confirm all door ...

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