Wood master CleanFire 400 Owner's Manual

Outdoor wood fired hydronic heater

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OWNERS MANUAL
Retain this manual
CleanFire
400
Outdoor Wood Fired
Hydronic HEater
Rev:2.1.4
www.woodmaster.com / 800-932-3629 / Manual PN: 7994-505
Northwest Manufacturing, Inc / 600 Polk Ave SW / Red Lake Falls, MN 56750

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Summary of Contents for Wood master CleanFire 400

  • Page 1 OWNERS MANUAL Retain this manual CleanFire Outdoor Wood Fired Hydronic HEater Rev:2.1.4 www.woodmaster.com / 800-932-3629 / Manual PN: 7994-505 Northwest Manufacturing, Inc / 600 Polk Ave SW / Red Lake Falls, MN 56750...
  • Page 2: Table Of Contents

    Table of Contents Safety ..................2-7 Fuel ................... 8 Features ..................9 Installation ................. 10-16 Operation ................17-22 Maintenance ..............23-34 Wiring Diagram ............... 35 Troubleshooting ..............36-38 Warranty ................39-42 Specifications ................43 Thank you for purchasing a quality wood boiler from WoodMaster. This product was designed to deliver easy, trouble free operation for years to come.
  • Page 3: Safety

    Safety • The chimney height may need to be adjusted depending on the installation and local codes. Do not connect this unit to a chimney flue serving another appliance. Follow all state/local codes. • Never open the tube access door or lower access door during operation! •...
  • Page 4 Safety instructions in this manual, or if the catalytic element is deactivated or removed. • The WoodMaster CleanFire will not function properly with the catalytic combustor removed. • This wood heater needs periodic inspection and repair for proper operation. It is against federal regulations to operate this wood heater in a manner inconsistent with operating instructions in this manual.
  • Page 5 800-932-3629 / www.woodmaster.com US ENVIRONMENTAL PROTECTION AGENCY Certi ed to comply with 2020 particulate emission standards using cord wood. Date Code:_____________________ CleanFire 400 .07 Lb/MMBTU emissions tested to EPA Method 28 WHH 2016 Crib Wood Serial #_____________ This Wood heater needs peri- odic inspection and repair for proper operation.
  • Page 6 Safety Safety Standards ASME H Stamp certified pressure boilers. CleanFire Owners Manual 2016...
  • Page 7 Safety 2016 CleanFire Owners Manual...
  • Page 8: Fuel

    Fuel All fuels must conform to certain quality standards to ensure trouble free operation of the boiler. Use of unapproved fuels may result in faulty operation and a voided warranty. DANGER: Risk of Fire for Explosion; NEVER use the following: trash, household garbage, plastics, gasoline, rubber, naphtha, leaves, and materi- als treated with petroleum products (ie: particleboard, railroad ties &...
  • Page 9: Features

    Features 1. Fire Door 2. Dry Fire Chamber 5. Negative Pressure Suction Fan 6. Isolators 7. Dampers - primary and secondary 8. Oxygen Injection Tube 9. Catalyst location FEATURES COMBUSTION PROCESS • ASME certified pressurized vessel • Primary and secondary air ducts equipped with 2 •...
  • Page 10: Installation

    Installation Choosing Location When installing your WoodMaster, keep in Overhead Lifting mind the direction of the winds during heating months. Try to place the boiler in an area where exhaust will not be a problem for yourself or any surrounding neighbors. For either indoor or outdoor installation. Only lift the CleanFire by the overhead hanger, Forklift or with a fork lift from below, placing the forks inside of the loops on the legs. NEVER LIFT THE CLEANFIRE BY THE THROAT/FIRE CHAMBER. THIS WILL DAMAGE THE UNIT. Forks Clearances There must be a minimum clearnace from combustibe materials when the boiler is installed. There must be 6” from either side, 48” from the front, 36” from the rear and 18” from the chimney connector. More room should be allowed to make cleaning and maintenance easier. Keep the space underneath the boiler open. Keep the area in front of the door clear. This space must be at least 16” in the front and 8” on either side. For Outdoor Installation LOCATION: It is recommended that the unit be located with due consideration to the prevailing wind direction. • When using more that 4 feet of chimney extension external support is needed. • Should be located greater than 100 feet from any residence not served. • If located between 100 and 300 feet to any residence not served, it is recommended that the stack be at least 100% of the height of the peak of the residence, plus an additional 2 feet. • Should be located 10 feet from any combustible materials. Always remember to comply with all applicable state and local codes. Residence not 2 feet served by furnace Chimney height should be 2 feet above roof line Residence...
  • Page 11 Installation • Should be located greater than 100 feet from any residence not served. • Should be located 10 feet from any combustible materials. Always remember to comply with all applicable state and local codes. The CleanFire can be installed in the building that it serves, or an out building. The room where the boiler is placed should allow ample venting to ensure proper air flow for combustion. The vent should be a minimum of 31 square inches. If wood or kindling are stored in the same building, they need to be outside of the safety clearances listed in this manual. If a fan is installed in the room to circulate air in, or exchange air with the outside, then there must be ample vent- ing as to not create a positive or negative pressure inside of the building in relation to the outside. Chimney Specifications To insure proper insulation, use only a Class A Double Wall Insulated Chimney UL listed per UL 103 and rated for solid fuel. Chimneys are available from your local WoodMaster Dealer or Northwest Manufacturing, Inc.. The chim- ney must be 6” in diameter and cannot be reduced or enlarged. - A draft controller may be used to allow proper flow. The draft controller must be installed as close to the boiler as possible. - The chimney draw must be no greater than -.05 inches of water. - Measure the draft at the bottom of the chimney, just above the flue connector, by drilling a hole in the c himeny that is sized for your measuring device. Properly plug the hole when completed. -A chimney that has four or more feet of extension must be externally suppored by guy wires. Tie points for guy wires are located on the CleanFire and a kit is available from your dealer.
  • Page 12 Note: Use only approved water line insulation sold through your WoodMaster Dealer. Poor insulation will cause your Wood Master boiler to burn large amounts of fuel, and hurt the efficiency of the system. For best results use high quality insulation.
  • Page 13 Installation Building Being Heated Air Bleeder Water Flow Suppy To Heat Zone Pump Expansion Tank Return To WoodMaster Fill Installing the Water Pump Remove the cover on the pump. Then using an approved wire, connect the ground wire to the green ground screw on the pump. Connect the black wire to the yellow wire on the pump. Finally, connect the remaining two white wires together and replace the pump cover. The pump must be able to deliver 10-12 GPM of flow in one inch line to ensure the heat from the boiler can be properly delivered to the heating zones. The target temperature change between the supply and return line is 20°F under max draw. Return water temperature must remain above 140° during operation to prevent condensation. An expansion tank must be installed on the system along with an air bleeder. The expansion tank must be properly sized for the complete water volume in the entire heating system. Pressure relief valves come installed from the factory. An air bleeder or pressure relief valve must be installed on the water tank. A pressure gauge may be in- stalled on the boiler. It is recommened to install the pump inside the building that the boiler is serving.
  • Page 14 Installation Plumbing The water pump and expansion tank for the boiler loop should be located inside of the building that is served. Wa- ter connections for the boiler are accessed by removing the side panel on the bottom left side of the boiler. Make sure the boiler is off and cool, and the water pump is off and the pressure has be relieved from the sytem before attempting to service any part of the plumbing on the boiler. Pressure Relief Valves Pressure Relief Valves LWCO Location LWCO Location Cold Return Cold Return Hot Supply Hot Supply Drains Drains CleanFire Owners Manual 2016...
  • Page 15 Installation Entering the building with water lines can be done underground or over the sill plate. Once inside the building the typical hookup would run first to the Domestic Hot Water Supply and next to an existing heating system such as a forced air boiler or a hot water heating system. Finally, before leaving the building, a fill valve must be installed near a water supply for filling and flushing the boiler in the WoodMaster Boiler. Domestic Cold The following examples are as a secondary Water in heat source. Domestic Hot Water out Domestic Hot Water WoodMaster The Domestic Hot Water/Flat plate Kit consists of a Wa- water out ter to Water Heat Transfer unit and the fittings needed to hook it up. The unit mounts on the wall VERTICALLY in your utility room and is connected as shown. WoodMaster water in Existing Forced Air A water to air heat exchanger is inserted in the existing plenum. In most cases the heat exchanger is placed in a horizontal position, keeping all four sides level. The air must be forced through the finned area of the heat exchanger evenly. The hot water line coming from the...
  • Page 16 Installation Existing Hot Water Heat A Water to Water Heat Transfer Unit (0020-052) is used to connect to an existing hot water boiler system. Note: Any changes that are made to an existing boiler should be done by a qualified plumber and follow all state and local codes. Existing Heat Zone Return Cold Water Return to WoodMaster Existing Heat Zone Return Hot Water Supply from Cold Water Return to...
  • Page 17: Operation

    Operation Understanding the Boiler Controller The controller for the WoodMaster has an easy to read, backlit OLED display that can be read in extreme condi- tions. The user can input selections using three arrow buttons. The function of these buttons will change, depend- ing on what screen is active. The function for the buttons will be displayed at the bottom of the display. The Up and Down buttons scroll through the Manin Menu. Below is the main home screen that shows the Catalyst and water temperature, as well as the status of the boiler in the bottom center of the display. This will read Running, Cold Start, Reload and Standby. Pressing any button from the home screen will turn on the boiler light. Press and hold the button to activate the function. This is a safety feature meant to prevent accidental changes. Note: Do not use your fingernails or sharp objects to press the buttons as this will cause damage to the membrane. Water ºF Catalyst ºF 1800 Menu Running Reload Switching the Boiler On Once the boiler is properly plumbed and water has been added to the system, it can be switched on and fired. Press...
  • Page 18 Operation This screen will allow you to view the boiler water pressure. No changes can be made on this screen. Pressure: 13.1 PSI Exit Follow the on screen directions to change the light timer. The Timer can be set from 5 minutes to 60 minutes in 5 minute Light Timer: 5 Minutes intervals. The light can also be set to always off or always on. Modify Save Select Exit to return to the home screen. Main Menu Light Timer Exit Accessing the Diagnostics Menu Press and hold the button for 10-12 seconds. This menu is intended for diagnosing a problem, and any calibrating should be done by qualified persons. Controller Navigation Main Menu Once the Diagnistics Menu has be activated, use the and O2 Calibrate TC Calibrate buttons to scroll through the options, and press to select the Exit...
  • Page 19 Operation Firing Spread your firing material in the fire chamber making sure that it covers the entire bottom of the fire chamber. Note: A cardboard and newspaper combination works best at starting the fire. Caution: DO NOT use laminated or coated paper or cardboard in your CleanFire. Using laminated or coated products WILL damage the boiler and void your warran- ty.
  • Page 20 Operation Once the wood pieces have ignited and a good size fire established, more wood kindling pieces can be added. close the fire chamber door. Once the Catalyst has reached 750° on the display, the boiler should enter burn mode. more fuel can be added at this time. Make sure all fuel used meets the guidelines in this man- ual and is loaded parallel to the sides of the fire chamber. 125 lbs of seasoned hardwood such as oak or maple will give an 8 hour burn at max draw. Other hardwood and softwood species can be used, but may result in shorter burn times as these woods are less dense and have less energy by volume. The maximum fill level is 1” (2.54cm) from the top of the door opening. 1” CleanFire Owners Manual 2016...
  • Page 21 Operation Reloading the Boiler The WoodMaster CleanFire is designed for a continuous burn and can be reloaded at any time as long as certain parameters are met. Under low load conditions a full fuel load may be added. This will not affect the burn quality or efficiency of the boiler. The best time to reload the boiler is when there is a well established coal bed in the bottom of the boiler and the boiler is currently under load. Do not reload the boiler if the coal bed is too low to maintain a catalyst temperature of 600° F and above. This can be checked on the display. If the catalyst is below 600°F and the coal bed is low, then light the boiler according to the initial firing as explained on the previous pages. Do not reload the boiler if the water temp is at 185° or above and the load on the boiler is minimal. Reloading at this time may cause the boiler to go over temperature and lockout. The boiler may be reloaded when there is a well established coal bed or fire and the catalyst is at or above 600°F. Caution must be used when opening the fire chamber door since the WoodMaster CleanFire controls the oxygen to the fire at all times. At certain points in the burn the fire may chase oxygen out of the door when it is opened. The WoodMaster CleanFire is equipped with a two stage latch that will prevent burn back when used properly. It may be necessarry to rake and level the coal bed druing the burn cycle under heavy loads to maintain output. When raking, bring any large unburnt pieces of wood to the center of the fire chamber. If done properly, this will only have to be done once, midway through the burn. Since the CleanFire is a fully automatic boiler that can burn to match the heat load, it is not necessarry to load the fire chamber according to the heat load. Loading a part load or a full load will not affect the efficiency or the emis- sions output, it will only affect the burn time. It is imperative to use dry, seasoned wood that is properly split to maintain a good coal bed during all seasons and heat loads. During time of light heat load, check the boiler daily and rake the coal bed as needed. To reload the boiler, make sure the conditions are met as previously explained. Open the fire chamber door by turning the latch and opening to the first stop (Shown In Picture) on the latch. Wait for one minute before opening...
  • Page 22 Operation When the door is open, inspect the coal bed and remove any ash build up that may be present near the primary air ports on each side of the fire chamber. If there is an excess build up of ash clean the fire chamber according to the directions in the maintenance section of this manual. Level the coal bed if needed. Load the fire chamber with cut, split and seasoned wood, laying it parallel to the fire chamber sides. Close the door completely and activate the reload function on the controller. This will purge any excess oxygen from the boiler. Once the oxygen has been purged and the catalyst is at or above a set value, the boiler will automatically enter burn mode. On lower heat loads, the reload function may need to be activated more than once if the catalyst temperature is below 700F and falling. CleanFire Owners Manual 2016...
  • Page 23: Maintenance

    Maintenance To maintain the efficiency of your boiler the manufacturer recommends that you perform these checks. You may need to clean it more frequently depending on the heat load and the type of wood that you are burning. Cleaning Caution, the boiler will be requires the fuel load to be at the end of the burn, with only a coal bed remaining. hot during fire chamber ash removal, as shutting down the boiler is not needed. Ashes should be placed in a metal container with a tight-fitting lid. The closed container of ashes should be placed on a noncombustible floor or on the ground, well away from all combustible materials, pending final disposal.
  • Page 24 Maintenance Removing the Ash From the Fire chamber (weekly or as needed) Open the fire chamber door according to the directions in the operating section. When the ash buildup in the bottom of the fire chamber is at or higher than the primary air channels, it is nec- essary to remove the ash from the bottom of the fire chamber. Using your ash hoe, push the hot coals to the back of the fire chamber, separating the coals from the ash. Note: the hot coals can be removed and temporarily place in a metal container.
  • Page 25 Maintenance This wood heater contains a catalytic combustor, which needs periodic inspection and replacement for proper oper- ation. It is against federal regulations to operate this wood heater in a manner inconsistent with operation instruc- tions in this manual, or if the catalytic element is deactivated or removed. Cleaning of the Turbulators, Tube Box and Ash Box (every 6 months or as needed) Making sure the boiler is cool and power is discon- nected, remove the chimney coupling on the top of the heat exchanger top access box. Disconnect the draft fan wires. Take care not to damage the connectors. Unscrew the four knobs that secure the lid. 2016 CleanFire Owners Manual...
  • Page 26 Maintenance Lift the lid off and back, taking care not to damage the draft fan wires. Set the lid aside where it will not be dam- aged. Slide each turbulator up and down to loosen. Use a twist- ing motion to clean the transfer tubs. Remove and clean each turbulator. Take care not to damage the insulation and the sensors on the side of the box. Vacuum all ash from the tube box, including the door and any remaining ash in the heat transfer tubes. Make sure the turbulators are in place and close the top door when cleaning is complete. Reconnect the draft fan wires and the chimney coupling. CleanFire Owners Manual 2016...
  • Page 27 Maintenance Open the ash box door by unscrewing the two knobs. Vacuum or sweep the ash from the ash box. Replace the cover when finished. Monitor the pressure of the water in the boiler daily. If the pressure is low, add water. There is no need to drain and flush the boiler when proper boiler treatment is used. 2016 CleanFire Owners Manual...
  • Page 28 Maintenance Chimney Sweeping & Creosote Removal (twice a month) Creosote – Formation and Need for Removal – When wood is burned slowly, it produces tar and other organic va- pors, which combine with expelled moisture to form creosote. The creosote vapors condense in the relatively 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 twice monthly during the heating season to determine if a creosote buildup has occurred. If creosote has accumulated it should be removed to reduce the risk of a chimney fire. Since the CleanFire has a fire chamber that is surrounded by air, the metal surface of the chamber is allowed to heat up with the fire and will prevent creosote from building up during normal opertaion with seasoned wood. Due to the use of a catalytic converter, the smoke in the exhaust that would potentially create creosote buildup in the chimney is greatly reduced. However the chimney should be inspected twice a month and cleaned if needed. To check the chimney, turn the boiler off and remove the hose clamps that hold the flexible chimney coupling to the top of the tube access box. Remove any creosote buildup to reduce the risk of a chimney fire. Inspect the upper seal for damage. Replace if necessary as described later in this section.
  • Page 29 Maintenance Catalyst Replacement If the catalyst cannot reach and maintain a temperature above 700o F, and if the boiler is not maintaining normal heat ouput, the catalyst may be failed and in need of replacement. To access the catalyst, remove the heat exchang- er top lid as described previously in this manual. See the warranty section to determine if your catalyst is covered under warranty. Do not attempt to burn the CleanFire without a working catalyst, as this will cause the heat ex- changer to plug and will greatly reduce the heat output of the unit. Burning the CleanFire without a catalyst will void the boiler warranty. Remove the heat exchanger lid as previously described. Remove the cap screws that secure the catalyst housing lid in place and carefully remove the lid, taking care not to damage the seal or drop any debris onto the catalyst. Carefully remove the insulation pieces from the catalyst housing. Inspect for cracks or damage and replace if needed. 2016 CleanFire Owners Manual...
  • Page 30 Maintenance Remove the old catalyst by gently prying it out of the heat exchanger with a screwdriver. The old seal will fall apart when the catalyst is removed. Clean any debris out of the bottom ash box after completing installation. Remove all of the old seal and inspect the ceramics below the catalyst. Replace if damaged. Install the new seal as shown. Place a new, clean catalyst in the housing as shown. Small gaps in the seal are acceptable as the seal will expand the first time the boiler is fired. Do not allow any debris to sit on the catalyst, as this can create hot spots and will reduce the life of the catalyst. Replace all insulation and the catalyst cover. Make sure the turbulators are in place and close the top door. Reconnect the draft fan wires and the chimney coupling. CleanFire Owners Manual 2016...
  • Page 31 Maintenance Door Seal (Daily-Yearly) The front door as well as the rear access doors must seal properly to ensure proper combustion. The front door seals should be inspected for damage or fatigue each time the boiler is loaded. The heat exchanger access doors should be checked each time the heat excahnger is cleaned. The door seals are made of fiberglass rope and prop- er personal protective equipment should be worn, including but not limited to, gloves, eye protection and long sleeves. The front door should seal tightly with no visible signs of air leakage. If a leak is detected or if the rope becomes hard and is no longer flexible, the seal should be re- placed. To replace the outer door seal, locate the joint of the rope and start to remove one end by simply pulling the rope out of the channel on the door. Clean any debris from the channel once the rope is removed. Start the new rope in the same location as the old one and press the rope into the channel on the door. Clean the sealing surface on the boiler before closing door. 2016 CleanFire Owners Manual...
  • Page 32 Maintenance To replace the inner seal loosen, but do not remove, the two nuts that hold the inner protection plate to the door. Slide the old rope out from under the plate. Slide a portion of the new rope under the plate, making sure to leave enough of the rope exposed to ensure a good seal. Once the rope is in place, secure the two nuts to 8 ft/lbs. The heat exchanger doors should seal tightly with no vis- ible signs of air leakage. If a leak is detected or if the rope becomes hard and is no longer flexible, the seal should be replaced. The same process is used for the upper door. CleanFire Owners Manual 2016...
  • Page 33 Maintenance To replace the seals from the top and bottom doors on the heat exchanger, locate the joint of the rope and start to remove one end by simply pulling the rope out of the channel on the door. Scrape out any old caulking and clean any debris from the channel once the rope is removed. Once the debris is cleaned, lay a small bead of silicone in the corner of the dorr as shown. the Silicone must remain behind the rope, so use the smallest amount needed to hold the rope in place. Start the new rope in the same location as the old one and press the rope into the channel on the door. Clean the sealing surface on the heat exchanger before replac-...
  • Page 34 Maintenance Low Water Cutoff - Testing The LWCO is located on the top left side of the rear enclosure. To test for proper function the boiler must be empty of water. With the boiler empty, power on the CleanFire. The Control should not allow operation, and the Indication LED on the LWCO should be red. Fill the boiler with water. Once the LED changes from red to green, the control will allow for operation. To test during normal operation, press the test button on the side of the LWCO The light should turn red and the boiler operation should stop. Release the button to restart normal operation. The LWCO should be tested once a year, or any time the boiler is fired after an extended down period. Low Water Cutoff - Cleaning The LWCO should be cleaned every 5 years or if indi- Clean cated by a red service light. To clean, remove the LWCO from the boiler line and remove all oils, fluxes and scale build up with a clean cloth. Take care not to damage the teflon insulator. Te on Sleeve CleanFire Owners Manual 2016...
  • Page 35: Wiring Diagram

    Wiring All wiring should be done by qualified persons. Inducer Fan Catalyst Thermocouple Return RTD 3210 Side Supply RTD View Master 3210 Solenoid Earth Air Box OLED Front Display 10X10 Junction 0-50 Water LED Light Cutoff Snap Disc 200ºF LED Light 120 VAC 60Hz Service IN (14-2 w/ground)
  • Page 36: Troubleshooting

    Troubleshooting If Boiler Is Not Heating: 1. Check fire. 2. Check pump. If pump is not running, shut off power supply to pump and inspect. 3. Check water pressure. If water is low, inspect for leaks in the system. 4. Check the ash box for ash buildup. If opening is reduced fire cannot burn properly. 5. Check the draft fan and air dampers. Make sure they are operating properly. 6. Check that the controller is not in lockout mode. 7. If water temperature is reading 120° F or lower, initiate the start process 8. Boiler cannot produce enough energy for heat demand with wood being burned. Wood or system need to be addressed. Thermal storage may be added. 9. Check the catalyst temperature. If the catalyst is not able to maintain a temperature of 700o F or higher. then the catalyst may be plugged or failed. If Boiler Pressure Valve Releases: 1. Check fire chamber door. Be sure door was not left open. 2. Check fire chamber door seal. Make sure the door has a tight seal. 3. Check the draft fan and air dampers. Make sure they are operating properly. 4. In extremely warm weather, there may not be enough of a load to function properly. In the Event of a Runaway Fire: 1. Close the door if not already closed. 2. Disconnect Power.
  • Page 37 Troubleshooting 8. If no errors are found, check and clean the firebox. 9. Check the firebox and door seals for damage. If no damage is found, restart the boiler according to this manual. NOTE: If any damage is found, contact your WoodMaster Dealer. In the Event of Power Loss: 1. Leave the door closed until power is restored. 2. Once power is restored, check the unit for visible damage. 3. Check the dispay for errors. 4. If no errors are found, check the fire chamber for fire and restart the unit according to this manual. In the Event of Lock Out: 1. Wait for the unit to come out of lockout mode. 2. Before proceeding, check the boiler for damage. 3. Check the display for errors. 4. If no errors are present, check the fire chamber and inspect the door seals. 5. If no damge is present, restart the unit according to this manual. NOTE: If boiler boiled water out and air entered lines this could damage pump. Be sure to remove air from system.
  • Page 38 Troubleshooting Error Codes Below is a list of errors that the controller can display and the course of action that should be taken to rectify the issue. All repairs must be made by qualified persons. Error Cause Solution O2 Reads 0% for 60 consecutive Disconnect power and check the O2 sensor connec- minutes tions. Remove the O2 sensor and check for damage. O2 Error Calibrate the 02 sensor as described in the opera- O2 Reads Over 18% while Catalytic tion section.
  • Page 39: Warranty

    Warranty WOODMASTER CLEANFIRE LIMITED WARRANTY This Warranty is provided by Northwest Manufacturing, Inc. only for the bene t of the initial purchaser (Original Owner) of the Northwest Manufacturing, Inc. WoodMaster CleanFire (the “Boiler”) on the original site of installation (the “Site of Original Installa- tion”).
  • Page 40 Warranty damage to the Boiler due to ash corrosion. III. The workmanship, repairs or replacement of parts of the Certi ed Contractor will not be covered under this warranty. IV. Components of the heating system not furnished by Northwest Manufacturing, Inc. are not covered under this Warranty. Damages to the Boiler caused by components of the heating system not supplied by Northwest Manufacturing, Inc.
  • Page 41 Northwest Manufacturing Inc. PLACE POSTAGE 600 Polk Ave. SW HERE Red Lake Falls, MN 56750 Northwest Manufacturing Inc. 600 Polk Ave. SW Red Lake Falls, MN 56750...
  • Page 42: Warranty

    WoodMaster CleanFire 400 Warranty Registration Card Please fill out the warranty registration card below and mail it back to us. Failure to register may delay warranty claims. Serial Number (Located on UL Sticker) Owners Name Address City State Fold Fold...
  • Page 43: Specifications

    Model Number ........
  • Page 44 www.woodmaster.com / 800-932-3629 / Manual PN: 7994-505 Northwest Manufacturing, Inc / 600 Polk Ave SW / Red Lake Falls, MN 56750...

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