36" and 42" FACTORY-BUILT WOOD BURNING FIREPLACES FOR MANUFACTURED HOMES INSTALLATION AND OPERATING INSTRUCTIONS MODELS BWBC400MHB BWBC500MHB FACTORY-BUILT FIREPLACES U.L. FILE NO. MH7603 These fireplaces have been tested to U.L. Safety Standard 127, and listed by Underwriters Laboratories, Inc. Look for the UL listing mark on your fireplace. CONGRATULATIONS! You have chosen the finest wood burning fireplace available. Your fireplace has been designed for years of heating and viewing enjoyment.
CONTENTS Listing and Code Approval .............................................. 2 Important Safety Information .......................................... 3 Fireplace Usage ................................................................ 4 Product Features .............................................................. 5 How This Fireplace Works ............................................... 6 Fireplace Location ............................................................ 8 Fireplace Dimensions ...........
IMPORTANT SAFETY INFORMATION WARNING OWNER Please retain these instructions for future reference. • Read these instructions entirely before beginning any part of the installation. Save these instructions for any future repairs. • Use these instructions as a guide during the installation of the fireplace. • Install all the parts used with this fireplace system in accordance with these installation instructions. Failure to do so may be hazardous and will void the warranty.
FIREPLACE USAGE These fireplaces are for use in manufactured homes. Burn solid wood fuel only or use only with one of the gas log appliances described below. These fireplaces are intended for supplemental heating only and are not intended for use as a primary heating system. WARNING Do not use this fireplace and chimney for venting a solid fuel heater or fireplace insert unless written authorization is given by Monessen Hearth Systems.
If a gas appliance is installed in one of the fireplaces, installation must be in accordance with nation fuel gas code ANSI Z223.1 Guidelines for safely installing and operating one of the gas appliances (gas lot set) described above are contained in the instructions provided with the gas appliance.The installer of the gas appliance must describe the operation of the fireplace and gas appliance to the individuals who will be operating them. Instruction manuals must be left with operator of the system.
HOW THIS FIREPLACE WORKS As wood is burned in the fireplace, room air enters the fireplace through its “cool air inlet”, circulates around the firebox, and exits the fireplace through its “warm air outlet.” See Figure 2. This air circulation cools the firebox. WARNING Do not block or restrict air circulation in any manner. Blocking or restricting the air flow will cause the firebox to reach hazardous temperatures.
HOW THIS FIREPLACE WORKS For large fires, the maximum heating benefit from the fireplace will be obtained with its glass doors fully open. The open doors will allow more radiant heat to be emitted out of the front opening of the fireplace. When the glass doors are open, close the fireplace’s mesh screens to help keep burning embers from popping out of the firebox. With a small fire, it is best to operate the fireplace with its glass doors fully closed to prevent excessive room air from being drawn up the chimney.
The following factors should be taken into consideration: CAUTION FIREPLACE LOCATION • This fireplace should have sufficient access for its safe operation and maintenance. • The SVTR firestop thimble allows chimney to be passed between joist and rafters or trusses placed 16" on center. See Chimney Installation, page 14. • Locate a position where the flue system of the fireplace can be properly installed without damaging the integrity of the building. e.g.
FIREPLACE DIMENSIONS Outside Connector Center Line A 71/2" 131/2" 10" TOP VIEW 213/4" Framing Dimension 21" A B C 400 Units 500 Units 243/4" 36" 401/2" 303/4" 42" 461/2" /2" or 5/8" Drywall Spacers 1 /2" or 5/8" Drywall Spacers 1 6 /2" 1 403/4" 343/8" Framing Dimension 211/2" BWBC400MHB BWBC500MHB 95/8" Air Kit 171/4" 61/2" 7" 25/8" 97/8" B C Gas 133/4" Framing Dimension FRONT VIEW Electrical SIDE VIEW Figure 7 - Fireplace Dimensions FIREPLACE INSTALLATION 1.
FIREPLACE INSTALLATION SAFETY STRIP INSTALLATION You must place the metal safety strip (packed with your fireplace in two pieces) beneath the fireplace front before installing hearth extension Slide safety strip approximately 11/2" under the fireplace. The hearth extension will install on top of the safety strip. See Figures 8 and 9.
FIREPLACE INSTALLATION *HEARTH EXTENSION EQUIVALENTS Hearth extensions are made of a 1/2" thick piece of **MICORE CV230 fiberboard covered with a sheet of 26 gauge galvanized steel. You may purchase these materials locally to fabricate hearth extensions. You can construct hearth extensions from any noncombustible material that is 1/2" thick with a “K” value (thermoconductivity) of 0.43 or lower. For example, an insulating material 1/2" thick with a “K” value of 0.35 would be acceptable.
FIREPLACE INSTALLATION UNPACKING FIREPLACE Unpack and check the fireplace and chimney for damage. If any items are been damaged or missing, contact your Monessen Hearth Systems dealer. Do not substitute parts. Use only parts listed for use with Monessen Hearth Systems Models BWBC400MHB and BWBC500MHB fireplaces. CLEARANCES Provide required clearances shown in Figures 10 through 12. Provide 2" minimum chimney air space clearance to combustibles.
FIREPLACE INSTALLATION CLEARANCES (CONTINUED) WARNING Flue Outlet Height • You must use Model SVTR Thimble • It is recommended for safety and reducing heat loss that firestopping be used at the ceiling level for chase installation even if local codes do not require firestopping. • Do not insulate chase with blown or fill type insulation. Only allow insulation to come into contact with fireplace at points where fireplace would normally be contacted by framing materials.
CHIMNEY INSTALLATION INSTALLING CHIMNEY SAFETY INFORMATION You must properly install the chimney to assure safe and satisfactory performance of the fireplace. This is an important part of the installation. Review the Chimney Installation Section thoroughly. WARNING SMH Chimney Kit and SMH2 Chimney Kits are used most often in contemporary fireplace installations. If you plan to use the SMH or SMH2 Chimney Kit, check to make sure you have all parts.
CHIMNEY INSTALLATION FIRESTOP THIMBLE AND THIMBLE EXTENSION A firestop thimble is required in the chimney installation of all fireplaces safety-certified for installation in manufactured homes. For shielding purposes, the firestop thimble must pass through the manufactured home ceiling and extend up to the roof line of the manufactured home. See Figures 13 through 15. When an extension is needed, a thimble extension must be installed along with the firestop thimble.
CHIMNEY INSTALLATION FIRESTOP THIMBLE AND THIMBLE EXTENSION (CONTINUED) 3. For unventilated cathedral type ceiling on double-wide manufactured homes, the firestop thimble should extend through both the ceiling and roof structures. See Figure 15. SVTR Firestop Thimble May Be Trimmed Off Flush with Roof Line if It interferes with Flashing SVTR Firestop Thimble (Swivels 0 to 15°) • 7 ½° Pitch Requires 14½" x 14¾" Framed Opening • 15° Pitch Required 14½" x 15" Framed Opening.
CHIMNEY INSTALLATION ELBOW INSTALLATION Support Straps The following are important points that should be observed when installing elbows on the fireplace. 1. Securely nail down all four (4) support straps to the surrounding structure of all elbows not installed directly on top of the fireplace. IMPORTANT: Use a minimum of two (2) 8-penny nails per strap.
CHIIMNEY INSTALLATION OFFSET INSTALLATION SEQUENCE Determine the location and amount of offset required. Select the combinations of chimney sections and elbows required from the Chimney Height and Offset Charts.
CHIIMNEY INSTALLATION OFFSET INSTALLATION SEQUENCE (CONTINUED) 1. Install the first SE30 elbow by placing the male end of the 8" diameter flue elbow into the mating part of the fireplace or chimney section. Press down until the snap locks engage. 2. Insert the female end of the 11" diameter outer elbow onto the mating part of the fireplace or chimney section . Press down until the snap locks engage. 3. Nail the support straps to the framing member with a minimum of two (2) 8-penny nails per strap. 4.
CHIIMNEY INSTALLATION CAUTION CHIMNEY CAP INSTALLATION (CONTINUED) Standard Roofing Shingles Top of Flashing Be careful to avoid electrical shock hazard when contacting wires to metal chimney components. 1. Extend the regular chimney sections until the top of the chimney is 4" below the total flue height desired. 2. Remove the shingles from around the chimney so that the flashing may be installed and sealed. For metal roofs: Install flashing on top of roof covering.
Fireplaces in manufactured homes must be supplied with outside combustion air. These fireplaces are provided with model AK6A combustion air kit (for floor installation only) to supply outside combustion air to the fireplace. If outside wall installation or ceiling/soffit installation is preferred, purchase model AK6 combustion air kit from fireplace dealer. See Figure 10, page 12. PRECAUTION AND RECOMMENDATIONS 1.
The fireplace face may be left exposed or trimmed with material such as brick, stone, or marble. If trim is installed, fasten it securely to face of fireplace. Seal any cracks between trim material and face of fireplace. Cracks can cause a fire and prevent fireplace from working properly. Block the fireplace with framing and attach the base to the supporting floor to reduce the possibility of such a crack developing. • Place wall ties in mortar joints of masonry trim.
TRIM AND MANTEL INSTALLATION FOR WOOD BURNING FIREPLACES LOCATING MANTEL Combustible Wall Board Maximum depth of mantel is 12" Combustible Mantel A = 6½" - Minimum from top of fireplace opening to bottom of any combustible trim material sticking out no more than 1½" beyond face of fireplace 12"max.
REMOVING GLASS DOORS You need to remove the glass doors to replace a damaged glass panel, to replace a refractory component inside the fireplace, or to more easily access glass panels for cleaning purposes. WARNING GLASS DOOR INSTALLATION Always use gloves and eye protection when handling glass doors in case glass is accidentally broken while handling. Note: An adjustable spring clip is installed on each side of the top track for the glass doors.
GLASS DOOR INSTALLATION REPLACING A GLASS PANEL 1. After removing door assembly, place the door assembly face down on a solid flat surface protected by cloth, cardboard, etc. 2. Carefully remove any broken or damaged glass panel. Locate glass spring retainers which keep the glass panels in the upper and lower trim channels. See Figure 28. Each panel of glass is kept in place with four (4) glass spring retainers. If any of the retainers are lost, order them when you order replacement glass panels. 3.
GLASS DOOR INSTALLATION A B C Door Pivot Pin Space Washer Nylon Retainer Washer Figure 30 - Inserting Bottom Pivot Pin into Pivot Bushing REINSTALLING GLASS DOOR 1. Insert the doorʼs bottom pivot pin into the appropriate pivot bushing located in the bottom panel of the fireplace. See Figure 30. 2. With the door assembly folded together, gently maneuver the door assemblyʼs upper pivot pin into the hole in the adjustable spring clip located in the top track for the glass doors. 3.
ADVANTAGES OF A WOOD BURNING FIREPLACE These are practical and ecological advantages of using wood as a fuel. Also to be considered is the aesthetic appeal. Most of us consider a wood fire with nostalgia. We enjoy the aroma and find the flickering light of a cozy hearth reminding us of things past. Wood has a low ash content. The little ash that remains after burning is useful in home gardening as a fertilizer and soil conditioner.
FIREPLACE OPERATION BUILDING AND TENDING A FIRE WOOD VS. FOSSIL FUELS The first three fires should be of moderate size to allow the fireplace to adjust and cure before being subjected to larger fires. Compared to fossil fuels, a full cord of dry hickory weighs about two tons and is approximately equal in heating value to a ton of hard coal. On a per pound basis, heavy hardwoods have about half the heating value of coal. The table below shows the relative densities and heat values of a variety of dry woods.
FIREPLACE OPERATION If a fire gets too large at any time: • Open both glass doors to quickly reduce the heat in the firebox • Push wood to the rear of the firebox and rearrange it into a single layer • Let the fire burn to a smaller size before closing the glass doors again. Glass doors should be FULLY OPEN or FULLY CLOSED when operating fireplace. Partially opened doors may allow gas and flame to be drawn out of the fireplace opening. This creates a risk of both fire and smoke.
MAINTENANCE At the end of each heating season or when the fireplace will not be in use for an extended time, the ashes should be removed and the hearth area should be swept clean. The slow absorption of moisture into the ashes over a long period of time could corrode metal fireplace parts. WARNING FIREPLACE MAINTENANCE Disconnect the electric supply to the fireplace beforeservicing or repairing the fan to avoid an electrical shock hazard.
MAINTENANCE REFRACTORY COMPONENTS MAINTENANCE Over time, expansion and contraction will cause minor cracking of the hearth, back, and side refractory components. This is normal and unavoidable. If the cracks become large enough or parts dislodge and metal behind the refractory is exposed, the refractory components should be replaced with new components obtained from your fireplace dealer. REMOVING AND INSTALLING FIREPLACE REFRACTORY COMPONENTS (BRICK PANELS AND HEARTH) Grate 1. Remove glass doors.
MAINTENANCE CHIMNEY MAINTENANCE Creosote, Formation and Need for Removal When wood is burned slowly, it produces tar and other organic vapors 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.
MAINTENANCE AND SAFETY CHECKLIST OF DO’S AND DON’Ts DO’s DON’Ts 1. Do check with local building officials to be sure the installation of the fireplace complies with all building codes and requirements. Obtain required building permits. Do plan your installation with safety as you primary consideration. 1. Donʼt install the fireplace on a poorly constructed base or fail to fasten down or attach the fireplace to prevent it from shifting out of position. 2.
REPLACEMENT PARTS REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER 3 1 4 5 19 20 15 21 16 13 7 11 22 12 14 6 17 18 8 17 9 WARNING 10 34 2 Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury.
REPLACEMENT PARTS Item Description * Qty BWBC400MHB BWBC500MHB 1 Weldment Air Door Rod 1 031867 031867 2 Firescreen Panels 2 61D0001 61D0003 3 Back Firebrick Assembly 1 61D0102 61D0107 4 Side Firebrick Assembly 2 61D0101 61D0101 5 Painted Grate Assembly 1 61D0020 61D0022 6 Hearth Refractory Assembly 1 61D0100 61D0106 7 Rocker Switch 1 32D0232 32D0232 8 Cord Set Assembly 1 26D0619 26D0619 9 Motor Assembly 2 077996 077996 10 Fan Base Bracket 2 029935 02993
REPLACEMENT PARTS REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER REPLACEMENT PARTS Item Part No.
NOTES 61D0087 37
NOTES 38 61D0087
NOTES ATTENTION APPLIANCE INSTALLER PLEASE RETURN THESE OPERATING AND INSTALLATION INSTRUCTIONS TO THE CONSUMER! 61D0087 39
LIMITED WARRANTY FACTORY-BUILT FIREPLACE AND COMPONENTS (EXCEPT BLOWERS) WHAT IS COVERED AND FOR HOW LONG • Five-Year Coverage: For five years from the date this fireplace and components are first purchased for use, Monessen Hearth Systems will, at its option, repair or replace any defective part of this fireplace or components, or refund to you a sum not to exceed the factory retail price in effect at the time of purchase.
