Us environmental protection agency phase ii certified woodstoves (27 pages)
Summary of Contents for Osburn 900
Page 1
INSTALLATION AND OPERATION MANUAL OSBURN 900 US ENVIRONMENTAL PROTECTION AGENCY PHASE II CERTIFIED WOOD STOVE Safety tested according to ULC S627, UL 737 and UL 1482 Standards by Intertek Testing Services www.osburn‐mfg.com Stove Builder International Inc. 250, rue de Copenhague, St‐Augustin‐de‐Desmoures (Quebec) Canada G3A 2H3 Tel: (418) 878‐3040 Fax: (418) 878‐3001 This manual is available for free download on the manufacturer’s web site. It is a copyrighted ...
Page 2
Osburn 900 Installation and Operation Manual THANK YOU FOR CHOOSING THIS OSBURN WOOD STOVE As one of North America’s largest and most respected wood stove and fireplace manufacturers, Stove Builder International takes pride in the quality and performance of all its products. We want to help you get maximum satisfaction as you use this product. In the pages that follow you will find general advice on wood heating, detailed instructions for safe and effective installation, and guidance on how to get the best performance from this stove as you build and maintain fires, and maintain your wood heating system. We recommend that our wood burning hearth products be installed and serviced by professionals ® who are certified in the United States by NFI (National Fireplace Institute ) or in Canada by WETT (Wood Energy Technology Transfer) or in Quebec by APC (Association des Professionnels du Chauffage). ...
Table of content PART A ‐ OPERATION AND MAINTENANCE .......... 6 Safety Information ................ 6 Summary of Operation and Maintenance Cautions and Warnings ........ 6 General Information ................ 7 OSBURN 900 Specifications .................... 7 Zone Heating and How to Make it Work for You .............. 9 The Benefits of Low Emissions and High Efficiency ............... 9 The SBI Commitment to You and the Environment ............ 1 0 2.4.1 What is Your New Stove Made Of? ...
Page 4
Osburn 900 Installation and Operation Manual Maintaining Your Wood Heating System ........ 22 Stove Maintenance ...................... 2 2 5.1.1 Cleaning Door Glass ...................... 2 2 5.1.2 Door adjustment ...................... 2 3 5.1.3 Replacing the Door Gasket.................... 2 4 5.1.4 Replacing the Glass Gasket and/or the Glass .............. 2 4 5.1.5 Cleaning and Painting the Stove .................. 2 5 ...
Page 5
Osburn 900 Installation and Operation Manual Appendix 1: Installing the Fresh Air Kit (AC01331) ........ 42 Appendix 2: Installing the Fire Screen (AC01318) ......... 43 Appendix 3: Installation and Use of Optional Air Circulation Fan and Thermodisc .............. 44 Appendix 4: Exploded Diagram and PARTS LIST ........ 46 OSBURN LIMITED LIFETIME WARRANTY .......... 48 _ ______________________________________________________________________________ 5 ...
Osburn 900 Installation and Operation Manual PART A ‐ OPERATION AND MAINTENANCE Please see Part B for installation instructions. 1 SAFETY INFORMATION 1.1 SUMMARY OF OPERATION AND MAINTENANCE CAUTIONS AND WARNINGS • HOT WHILE IN OPERATION, KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT MAY CAUSE SKIN BURNS. GLOVES MAY BE NEEDED FOR STOVE OPERATION. • USING A STOVE WITH CRACKED OR BROKEN COMPONENTS, SUCH AS GLASS OR FIREBRICKS OR BAFFLES MAY PRODUCE AN UNSAFE CONDITION AND MAY DAMAGE THE STOVE. • OPEN THE AIR CONTROL FULLY BEFORE OPENING FIRING DOOR. • OPERATE ONLY WITH DOOR FULLY CLOSED OR FULLY OPEN WITH FIRE SCREEN IN PLACE. IF DOOR IS LEFT PARTLY OPEN, GAS AND FLAME MAY BE DRAWN OUT OF THE OPENING, ...
Osburn 900 Installation and Operation Manual 2 GENERAL INFORMATION 2.1 OSBURN 900 SPECIFICATIONS Fuel Type Cordwood Test Standards (safety) ULC S627, UL 737 and UL 1482 Test Standard (emissions) EPA Method 28 (40 CFR Part 60) Heating capacity range* 250 to 1000 sq. ft. (23,2 to 92,9 m ) Maximum heat output** 21 800 BTU/h (6,4 kW/h) (EPA test fuel) Maximum heat output** 40 000 BTU/h (11,7 kW/h) (natural hardwood fuel) Optimum efficiency 78,2 % Test Standard (efficiency) CSA B415.1 Approximate Burn Time 3 to 5 hours Shipping Weight 276 lb (125,2 kg) Firebox Volume 1,3 cu.ft. (0,037 m ) Maximum Log Length 17" east‐west*** Flue Outlet Diameter: 6" (150 mm) diameter (vertical) Baffle Material Stainless steel and firebrick * Burn time and heating capacity may vary subject to location in home, chimney draft, chimney ...
Your success with zone heating will depend on several factors, including the correct sizing and location of the stove, the size, layout and age of your home and your climate zone. Three‐season vacation homes can usually be heated with smaller stoves than houses that are heated all winter. 2.3 THE BENEFITS OF LOW EMISSIONS AND HIGH EFFICIENCY The low smoke emissions produced by the special features inside the Osburn 900 firebox mean that your household will release up to 90 percent less smoke into the outside environment than if you used an older conventional stove. But there is more to the emission control technologies than protecting the environment. The smoke released from wood when it is heated contains about half of the energy content of the fuel. By burning the wood completely, your stove releases all the heat energy from the wood ...
Osburn 900 Installation and Operation Manual instead of wasting it as smoke up the chimney. Also, the features inside the firebox allow you to reduce the air supply to control heat output, while maintaining clean and efficient flaming combustion, which boosts the efficient delivery of heat to your home. The emission control and advanced combustion features of your stove can only work properly if your fuel is in the correct moisture content range of 15 to 20 percent. See Section A3.0 of this manual for suggestions on preparing fuelwood and judging its moisture. ...
Osburn 900 Installation and Operation Manual 3 FUEL 3.1 MATERIALS THAT SHOULD NOT BE BURNED • GARBAGE OF ANY KIND, • COAL OR CHARCOAL, • TREATED, PAINTED OR COATED WOOD, • PLYWOOD OR PARTICLE BOARD, • FINE PAPER, COLORED PAPER OR CARDBOARD, • SALT WATER DRIFTWOOD • MANUFACTURED LOGS CONTAINING WAX OR CHEMICAL ADDITIVES • RAILROAD TIES • LIQUIDS SUCH AS KEROSCENE OR DIESEL FUEL TO START A FIRE 3.2 HOW TO PREPARE OR BUY GOOD FIREWOOD 3.2.1 WHAT IS GOOD FIREWOOD? Good firewood has been cut to the correct length for the stove, split to a range of sizes and ...
Osburn 900 Installation and Operation Manual only hardwoods are good to burn is outdated. Old, leaky cast iron stoves wouldn’t hold a fire overnight unless they were fed large pieces of hardwood. That is no longer true. You can successfully heat your home by using the less desirable tree species and give the forest a break at the same time. 3.2.3 LOG LENGTH Logs should be cut about 1” (25 mm) shorter than the firebox so they fit in easily. Pieces that are ...
Osburn 900 Installation and Operation Manual Wood should be split to a range of sizes, from about 3” to 6” (75 mm to 150 mm) in cross section. Having a range of sizes makes starting and rekindling fires much easier. Often, the firewood purchased from commercial suppliers is not split finely enough for convenient stoking. It is sometimes advisable to resplit the wood before stacking to dry. 3.2.5 HOW TO DRY FIREWOOD Firewood that is not dry enough to burn is the cause of most complaints about wood inserts. ...
Osburn 900 Installation and Operation Manual 3.2.6 JUDGING FIREWOOD MOISTURE CONTENT You can find out if some firewood is dry enough to burn by using these guidelines: • cracks form at the ends of logs as they dry • as it dries in the sun, the wood turns from white or cream coloured to grey or yellow, • bang two pieces of wood together; seasoned wood sounds hollow and wet wood sounds dull, • dry wood is much lighter in weight than wet wood, • split a piece, and if the fresh face feels warm and dry it is dry enough to burn; if it feels damp, it is too wet, • burn a piece; wet wood hisses and sizzles in the fire and dry wood does not. You could buy a wood moisture meter to test your firewood. 3.3 MANUFACTURED LOGS Do not burn manufactured logs made of wax impregnated sawdust or logs with any chemical ...
Osburn 900 Installation and Operation Manual 4 OPERATING YOUR STOVE 4.1 THE USE OF A FIRE SCREEN. This stove has been tested for use with an open door in conjunction with a fire screen (AC01318, sold separately). Make sure the fire screen is properly secured on the stove to avoid any risk of fire. When the fire screen is used, it is important not to leave the stove unattended to respond ...
Osburn 900 Installation and Operation Manual 4.3.1 CONVENTIONAL FIRE STARTING The conventional way to build a wood fire is to bunch up 5 to 10 sheets of plain newspaper and place them in the firebox. Next, place 10 or so pieces of fine kindling on the newspaper. This kindling should be very thin; less than 1” (25 mm). Next, place some larger kindling pieces on the fine kindling. Open the ...
Osburn 900 Installation and Operation Manual 4.3.3 TWO PARALLEL LOGS Place two spit logs in the firebox. Place a few sheets of twisted newspaper between the logs. Now place some fine kindling across the two logs and some larger kindling across those, log cabin style. Light the newspaper. 4.3.4 USING FIRE STARTERS Many people like to use commercial fire starters instead of newspaper. Some of these starters are made of sawdust and wax and others are specialized flammable solid chemicals. Follow the package directions for use. Gel starter may be used but only if there are no hot embers present. Use only in a cold firebox to start a fire. DO NOT USE FLAMMABLE LIQUIDS SUCH AS GASOLINE, NAPHTHA, FUEL OIL, MOTOR OIL, OR ...
Osburn 900 Installation and Operation Manual IF YOU MUST OPEN THE DOOR WHILE THE FUEL IS FLAMING, OPEN THE AIR CONTROL FULLY FOR A FEW MINUTES, THEN UNLATCH AND OPEN THE DOOR SLOWLY. 4.4.2 ASH REMOVAL Ash should be removed from the firebox every two or three days of full time heating. Do not let the ash build up in the firebox because it will interfere with proper fire management. The best time to remove ash is after an overnight fire when the stove is relatively cool, but there is still some chimney draft to draw the ash dust into the stove and prevent it from coming into the room. After ashes have been removed from the stove and placed in a tightly covered metal container, they should be taken outside immediately. The closed container of ashes should be placed on a non‐combustible floor or on the ground well away from all combustible materials pending final ...
Osburn 900 Installation and Operation Manual 4.4.4 FIRING EACH NEW LOAD HOT Place the new load of wood on and behind the charcoal and not too close to the glass. Close the door and open the air control fully. Leave the air control fully open until the firebox is full of flames, the wood has charred to black and its edges are glowing red. Firing each load of wood hot accomplishes a few things: • drives the surface moisture from the wood, • creates a layer of char on the wood, which slows down its release of smoke, • heats the firebox components so they reflect heat back to the fire, and • heats the chimney so it can produce strong, steady draft for the rest of the cycle. Although it is important to fire each new load hot to prepare for a clean burn, do not allow the fire to burn at full intensity for more than a few minutes. DO NOT LEAVE THE STOVE UNATTENDED WHILE A NEW LOAD IS BEING FIRED HOT. DO NOT OVERFIRE. When you burn a new load of wood hot to heat up the wood, the stove and the chimney, the ...
Osburn 900 Installation and Operation Manual 4.4.6 BUILDING DIFFERENT FIRES FOR DIFFERENT NEEDS Using the air control is not the only way to match the stove’s heat output to the heat demand. Your house will need far less heat in October than in January to be kept at a comfortable ...
Page 21
Osburn 900 Installation and Operation Manual 4.4.6.4 Maximum Burn Cycle Times The burn cycle time is the period between loading wood on a coal bed and the consumption of that wood back to a coal bed of the same size. The flaming phase of the fire lasts for roughly the first half of the burn cycle and the second half is the coal bed phase during which there is little or no flame. The length of burn you can expect from your stove, including both the flaming and coal bed phases, will be affected by a number of things, such as: • firebox size, • the amount of wood loaded, • the species of wood you burn, • the wood moisture content, • the size of the space to be heated, • the climate zone you live in, and • the time of year. The table below provides a very general indication of the maximum burn cycle times you are likely ...
Osburn 900 Installation and Operation Manual 5 MAINTAINING YOUR WOOD HEATING SYSTEM 5.1 STOVE MAINTENANCE Your new stove will give many years of reliable service if you use and maintain it correctly. Some of the internal components of the firebox, such as firebricks, baffles and air tubes, will wear over time under intense heat. You should always replace defective parts with original parts (see Appendix 4: Exploded Diagram and Parts List). For firing each load hot to begin a cycle as ...
Osburn 900 Installation and Operation Manual 5.1.2 DOOR ADJUSTMENT In order for your stove to burn at its best efficiency, the door must provide a perfect seal with the firebox. Therefore, the gasket should be inspected periodically making sure to obtain an air tight fit. Airtightness can be improved with a simple latch mechanism adjustment. To adjust: 1. Remove the lock pin (spring pin) by pulling and turning it using pliers. 2. Turn the handle counter clock wise one turn to increase pressure. 3. Re‐install the lock pin (spring pin) with a small hammer. _ _____________________________________________________________________________ 2 3 ...
Osburn 900 Installation and Operation Manual 5.1.3 REPLACING THE DOOR GASKET It is important to maintain the gasket in good condition. After a year or more of use, the door gasket will compress and become hard, which may allow air to leak past it. You can test the ...
Osburn 900 Installation and Operation Manual Do not abuse the glass door by striking or slamming shut. Do not use the stove if the glass is broken. To change the glass, perform the same operation described above. 5.1.5 CLEANING AND PAINTING THE STOVE Do not attempt to clean or paint the stove when the unit is hot. Painted surfaces can be wiped down with a damp cloth. Plated surfaces may be scratched by abrasive cleaners. To maintain the finish at its original brilliance, use only a damp soft cloth to clean plated surfaces. If the paint becomes scratched or damaged, you can give your wood stove a brand new look by repainting it with heat‐resistant paint. Before painting, roughen the surface with fine sand paper, wipe it down to remove dust, and apply two thin coats of paint. For best results, use the same ...
Osburn 900 Installation and Operation Manual 5.2.3 CLEANING THE CHIMNEY Chimney cleaning can be a difficult and dangerous job. If you don’t have experience cleaning chimneys, you might want to hire a professional chimney sweep to clean and inspect the system for the first time. After having seen the cleaning process, you can decide if it is a job you ...
• DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE. • DO NOT INSTALL IN A MOBILE HOME 6.2 REGULATIONS COVERING STOVE INSTALLATION When installed and operated as described in these instructions, the Osburn 900 wood stove is suitable for use as a freestanding heater in residential installations. The Osburn 900 wood stove is not recommended for installation in a sleeping room. In Canada, the CSA B365 Installation Code for Solid Fuel Burning Appliances and Equipment and the CSA C22.1 Canadian National Electrical Code are to be followed in the absence of local code requirements. In the USA, the ANSI NFPA 211 Standard for Chimneys, Fireplaces, Vents and Solid Fuel‐Burning Appliances and the ANSI NFPA 70 National Electrical Code are to be followed in the ...
Osburn 900 Installation and Operation Manual 7 CLEARANCES TO COMBUSTIBLE MATERIAL The clearances shown in this section have been determined by test according to procedures set out in safety standards ULC S627 (Canada), UL1482 (U.S.A.) and UL737 (U.S.A.). When the stove is installed so that its surfaces are at or beyond the minimum clearances specified, combustible surfaces will not overheat under normal and even abnormal operating conditions. No part of the stove or flue pipe may be located closer to combustibles than the minimum clearance figures given. ...
Page 29
Osburn 900 Installation and Operation Manual CLEARANCES (SINGLE WALL PIPE) CANADA USA A 15¼" (387 mm) 15" (381 mm) B 18" (457 mm) 18" (457 mm) C 10" (254 mm)* 10" (254 mm)* D 18" (457 mm) 17¾" (451 mm) E 26¼" (667 mm) 26¼" (667 mm) F 18" (457 mm) 18" (457 mm) K 48" (1219 mm) 48" (1219 mm) L 84" (213 cm) 84" (213 cm) Note: These clearances are also valid for an alcove installation. *If ceiling height (L) is between 68’’ and 84’’, clearance (C) changes to 12’’ (305 mm). CLEARANCES (DOUBLE WALL PIPE) ...
Page 30
Osburn 900 Installation and Operation Manual Clearances to combustible materials and floor protection 30 _ _____________________________________________________________________________ ...
Osburn 900 Installation and Operation Manual 7.3 FLOOR PROTECTOR If the stove is to be installed on top of a combustible floor, it must be guarded by a non combustible material as shown on figure 1.3 (see the dotted line area). FLOOR PROTECTOR* CANADA USA G 8’’ (203 mm) – Note 1 N/A (Canada only) H 8’’ (203 mm) N/A (Canada only) I 18’’ (457 mm) 16’’ (406 mm) From door opening ...
Osburn 900 Installation and Operation Manual 7.4 REDUCING WALL AND CEILING CLEARANCES SAFELY It is often desirable to reduce the minimum installation clearances by placing the stove closer to walls so the installation takes up less floor space. You can safely reduce the minimum clearances by permanently installing a shield between the stove and combustible material. The rules for safe shields can be complicated, so read them carefully and follow ...
Page 33
Osburn 900 Installation and Operation Manual Clearances for shield construction _ _____________________________________________________________________________ 3 3 ...
Osburn 900 Installation and Operation Manual 7.4.2 TABLE OF CLEARANCE REDUCTION PERCENTAGES Clearances may be reduced by these percentages Sides Top % Type of shield and rear % (ceiling) Can/USA USA Can/USA USA (%) min. (%) min. Sheet metal, a minimum of 24 gauge (0.61 mm) in thickness , spaced out at 67 12 po 50 18 po least 25 mm (1 in)* by non‐ combustible spacers Ceramic tiles, or equivalent non‐...
Osburn 900 Installation and Operation Manual 8 THE VENTING SYSTEM 8.1 GENERAL The venting system, made up of the chimney and the connecting pipe between the stove and the chimney, acts as the engine that drives your wood heating system. Even the best stove will not function safely and efficiently as intended if it is not connected to a suitable chimney. The heat in the flue gases that pass from the stove and chimney connector into the chimney is not waste heat. This heat is what the chimney uses to make the draft that draws in combustion air, keeps smoke inside the stove and safely vents exhaust to outside. You can think of heat in the flue gas as the fuel the chimney uses to make draft. 8.2 SUITABLE CHIMNEYS Your wood stove will provide optimum efficiency and performance when connected to a 6‐inch ...
Osburn 900 Installation and Operation Manual 8.2.2 MASONRY CHIMNEYS The stove may also be connected to a masonry chimney, provided the chimney complies with the construction rules found in the building code enforced locally. The chimney must have either a clay liner or a suitably listed stainless steel liner. If the masonry chimney has a square or rectangular liner that is larger in cross ...
Osburn 900 Installation and Operation Manual 8.4 THE RELATIONSHIP BETWEEN THE CHIMNEY AND THE HOUSE Because the venting system is the engine that drives the wood heating system, it must have the right characteristics. The signs of bad system design are cold backdrafting when there is no fire in the stove, slow kindling of new fires, and smoke roll‐out when the door is opened for loading. There are two guidelines to follow. First, the chimney should be installed up through the heated space of the house, not out and up an outside wall. Second, the chimney should penetrate the top of the building at or near the highest heated space. 8.4.1 WHY INSIDE CHIMNEYS ARE PREFERRED Venting systems that rise straight up from the stove flue collar provide the best performance. ...
Osburn 900 Installation and Operation Manual shorter than the warm space inside the house, the slight negative pressure low in the house will compete against the desired upward flow in the chimney. There are two reasons why the chimney in the house at right will cold backdraft when it is cold outside and there is no fire burning in the stove. First, the chimney runs up the outside of the house, so the air in it is colder and denser than the warm air in the house. And second, the chimney is shorter than the heated ...
Osburn 900 Installation and Operation Manual Some jurisdictions in the United States require that wood stoves have a supply of combustion air from outdoors. If you do install an air supply through the wall of the house, be aware that its pressure can be affected during windy weather. If you notice changes in wood stove performance in windy weather, and in particular if smoke puffs from the stove, you should disconnect the outdoor air duct from the stove and remove the duct. In some windy conditions, negative pressure ...
Page 40
Osburn 900 Installation and Operation Manual The best flue pipe assembly is one that rises straight up from the stove to the base of the chimney with no elbows. Straight assemblies are less likely to cause problems like smoke roll‐out when the door is opened for loading. They are also more stable and easier to maintain than assemblies with elbows. Horizontal runs of flue pipe should be avoided where possible because they reduce chimney draft. Use 45 degree elbows where possible, instead of 90 degree elbows. 40 _ _____________________________________________________________________________ ...
Page 41
Osburn 900 Installation and Operation Manual The rules below are based on those found in the CSA B365 installation code. Please carefully follow these installation instruction rules, or those enforced where you live. • Maximum overall length of straight pipe: 3 m (10 ft.) including elbows. • Minimum clearance from combustible material: 450 mm (18 in.). The minimum clearance may be reduced by 50 percent to 225 mm (9 in.) if suitable shielding is installed either on the pipe or on the combustible surface. • The assembly should be as short and direct as possible between the stove and chimney. The use of two 45 degree elbows is often preferable to a single 90 degree elbow because less ...
Osburn 900 Installation and Operation Manual APPENDIX 1: INSTALLING THE FRESH AIR KIT (AC01331) When installed with a fresh air kit, the stove must be anchored to the floor The installation instructions are provided with the Fresh Air Kit (AC01331), sold separately. 42 _ _____________________________________________________________________________ ...
Osburn 900 Installation and Operation Manual APPENDIX 2: INSTALLING THE FIRE SCREEN (AC01318) Open the door. Hold the fire screen by the two handles and bring it close to the door opening. Lean the upper part of the fire screen against the top door opening making sure to insert the top fire screen brackets behind the primary air deflector as in (Detail A). Lift the fire screen upwards and push the bottom part towards the stove then let the fire screen rest on the bottom of the door opening. ...
An optional fan can be installed on the back of the stove to increase the flow of air past heat exchange surfaces and to help circulate warm air in the room. When used regularly, the fan can provide a small increase in efficiency, up to 2 percent. However, the use of a fan should not be used as a way to gain more output from a stove that is undersized for the space it is intended to heat. You can purchase this option through your OSBURN dealer. Make sure to specify this part number: # AC02050. ...
Page 45
Osburn 900 Installation and Operation Manual When using the optional fan, allow the stove to reach operating temperature (approximately one hour), before turning it on. The increased airflow from the fan cools the firebox and could affect the start‐up combustion efficiency if the fan is turned on too early. You can also install a thermodisc to enable the blower to start or stop automatically when the stove is hot or too cold. The thermodisc part number is AC05530 for a basic model and ACO2055 for a quick connect model. Installation instructions are supplied with the blower and the thermodisc. ...
Osburn 900 Installation and Operation Manual APPENDIX 4: EXPLODED DIAGRAM AND PARTS LIST 46 _ _____________________________________________________________________________ ...
Page 47
Osburn 900 Installation and Operation Manual Qty per # Item Description stove 1 AC01318 FIRE SCREEN 1 2 30569 ROUND WOODEN HANDLE BLACK 2 3 30450 OSBURN DOOR LOGO 1 4 30124 SCREW #8 ‐ 32 X 5/16'' TRUSS QUADREX ZINC 9 5 AC07868 1/2 " BLACK COIL HANDLE 1 6 SE24220 DOOR ASSEMBLY 1 7 AC07900 DOOR HANDLE AND LATCH KIT 1 8 AC09185 DOOR LATCH KIT 1 ...
*Pictures required Shall your unit or a components be defective, contact immediately your OSBURN dealer. Prior to your call make sure you have the following information necessary to your warranty claim treatment: Your name, address and telephone number; Serial number and model name as indicated on the nameplate fixed to the back of your unit; Bill of sale and dealer’s name; Nature of the defect and any relevant information. Before shipping your unit or defective component to our plant, you must obtain from your OSBURN dealer an Authorization Number. Any merchandise shipped to our plant without authorization will be refused automatically and returned to sender. 48 _ _____________________________________________________________________________ ...
Need help?
Do you have a question about the 900 and is the answer not in the manual?
Questions and answers