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CW2900 Installation and Operation Manual 

 

 

10 

 

 

2.2  Zone Heating and How to Make it Work for You 

Your new CW2900 wood insert is a space heater, which means it is intended to heat the 
area  it  is  installed  in,  as  well  as  spaces  that  connect  to  that  area,  although  to  a  lower 
temperature.  This  is  called  zone  heating  and  it  is  an  increasingly  popular  way  to  heat 
homes or spaces within homes.  

Zone  heating  can  be  used  to  supplement  another  heating  system  by  heating  a  particular 
space  within  a  home,  such  as  a  basement  family  room  or  an  addition  that  lacks  another 
heat source. 

Houses  of  moderate  size  and  relatively  new  construction  can  be  heated  with  a  properly 
sized  and  located  wood  insert.  Whole  house  zone  heating  works  best  when  the  insert  is 
located in the part of the house where the family spends most of its time. This is normally 
the main living area where the kitchen, dining and living rooms are located. By locating the 
insert in this area, you will get the maximum benefit of the heat it produces and will achieve 
the highest possible heating efficiency and comfort. The space where you spend most of 
your time will be warmest, while bedrooms and basement (if there is one) will stay cooler. 
In this way, you will burn less wood than with other forms of heating. 

Although the insert may be able to heat the main living areas of your house to an adequate 
temperature, we strongly recommend that you also have a conventional oil, gas or electric 
heating system to provide backup heating. 

Your success with zone heating will depend on several factors, including the correct sizing 
and  location  of  the  insert,  the  size,  layout  and  age  of  your  home  and  your  climate  zone. 
Three-season vacation homes can usually be heated with smaller inserts 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  CW2900  firebox 
mean  that  your  household  will  release  up  to  90  percent  less  smoke  into  the  outside 

Summary of Contents for CW2900

Page 1: ... St Augustin de Desmaures 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 document Re sale is strictly prohibited The manufacturer may update this ual from time to time and cannot be responsible for problems injuries or damages arising out of the use of information contained in any manual obtained...

Page 2: ...nsfer or in Quebec by APC Association des Professionnels du Chauffage Congratulations on making a wise purchase If this insert is not properly installed combustible materials near it may overheat To reduce the risk of fire follow the installation instructions in this manual exactly Contact local building or fire officials about restrictions and installation inspection requirements in your area Ple...

Page 3: ...rials That Should Not be Burned 12 2 6 How to Prepare or Buy Good Firewood 12 2 6 1 What is Good Firewood 12 2 6 2 Tree Species 12 2 6 3 Log Length 13 2 6 4 Piece Size 13 2 6 5 How to Dry Firewood 14 2 6 6 Judging Firewood Moisture Content 15 2 7 Manufactured Logs 15 3 Operating Your Insert 16 3 1 The Use of a Fire Screen 16 3 2 Your First Fires 16 3 3 Lighting Fires 16 3 3 1 Conventional Fire Sta...

Page 4: ...Information 30 6 1 Summary of Installation Cautions and Warnings 30 6 2 Regulations Covering Insert Installation 30 7 Clearances to Combustible Material 32 7 1 Location of the Certification Label 32 7 2 The Masonry Fireplace Throat Damper 32 7 3 Compliance of a Combustible Mantel Shelf 33 7 4 Positioning the Unit 34 7 5 Minimum Masonry Opening Clearances to Combustibles and Floor Protector 39 8 Th...

Page 5: ...Appendix 5 Installing the Fire Screen AC01315 53 Appendix 6 Installation of Secondary Air Tubes and Baffle 54 Appendix 7 Removal Instructions 56 Appendix 8 Exploded Diagram and Parts List 57 CENTURY HEATING LIMITED LIFETIME WARRANTY 60 REGISTER YOUR WARRANTY ONLINE To receive full warranty coverage you will need to show evidence of the date you purchased your insert Keep your sales invoice We also...

Page 6: ...Y BE DRAWN OUT OF THE OPENING CREATING RISKS FROM BOTH FIRE AND SMOKE OPEN THE AIR CONTROL FULLY BEFORE OPENING THE LOADING DOOR THIS INSERT HAS BEEN TESTED FOR USE WITH AN OPEN DOOR IN CONJUNCTION WITH A FIRE SCREEN AC01315 SOLD SEPARATELY THE DOOR MAY BE OPEN OR FIRE SCREEN REMOVED ONLY DURING LIGHTING PROCEDURES OR RELOADING ALWAYS CLOSE THE DOOR OR PUT BACK THE FIRE SCREEN AFTER IGNITION DO NO...

Page 7: ...L TIMES IN ACCORDANCE WITH THESE INSTRUCTIONS DO NOT ELEVATE THE FIRE BY MEANS OF GRATES AND IRONS OR OTHER MEANS SOME JURISDICTIONS IN THE USA REQUIRE A SUPPLY OF OUTDOOR COMBUSTION AIR FOR THE INSERT IN CANADA AN OUTDOOR AIR SUPPLY IS NOT REQUIRED IF A CARBON MONOXIDE CO DETECTOR ALARM IS LOCATED IN THE ROOM IN WHICH THE INSERT IS INSTALLED THE CO DETECTOR WILL PROVIDE WARNING IF FOR ANY REASON ...

Page 8: ...ping Weight 409 lb 185 kg Firebox Volume 2 4 cu ft 0 0686 m3 Maximum Log Length 20 east west Flue Outlet Diameter 6 150 mm diameter vertical Baffle Material Vermiculite Heating capacity may vary subject to location in the home chimney performance heat loss factors climate zone or fuel burned The EPA test fuel is dimensional Douglas fir pieces stapled together into cribs with air spaces between We ...

Page 9: ...CW2900 Installation and Operation Manual 9 ...

Page 10: ...are located By locating the insert in this area you will get the maximum benefit of the heat it produces and will achieve the highest possible heating efficiency and comfort The space where you spend most of your time will be warmest while bedrooms and basement if there is one will stay cooler In this way you will burn less wood than with other forms of heating Although the insert may be able to h...

Page 11: ...ture almost the entire insert can be recycled into new products thus eliminating the need to mine new materials The paint coating on your insert is very thin Its VOC content Volatile Organic Compounds is very low VOCs can be responsible for smog so all the paint used during the manufacturing process meets the latest air quality requirements regarding VOC reduction or elimination The air tubes are ...

Page 12: ...woods are denser than softwoods People who live in the coldest regions of North America usually have only spruce birch and poplar other low density species to burn and yet they can heat their homes successfully Homeowners with access to both hardwood and softwood fuel sometimes use both types for different purposes For example softer woods make good fuel for relatively mild weather in spring and f...

Page 13: ...ey fit in easily Pieces that are even slightly too long make loading the insert very difficult The most common standard length of firewood is 16 400 mm The pieces should be a consistent length with a maximum of 1 25 mm variation from piece to piece 2 6 4 Piece Size Firewood dries more quickly when it is split Large unsplit rounds can take years to dry enough to burn Even when dried unsplit logs ar...

Page 14: ...akes a long time to dry firewood bought from a dealer is rarely dry enough to burn so it is advisable to buy the wood in spring and dry it yourself drying happens faster in dry weather than in damp maritime climates drying happens faster in warm summer weather than in winter weather small pieces dry more quickly than large pieces split pieces dry more quickly than unsplit rounds softwoods take les...

Page 15: ...ight 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 2 7 Manufactured Logs Do not burn manufactured logs made of wax impregnated sawdust or logs with any chemical additives Manufactured logs...

Page 16: ... paint cures and the internal components of the insert are conditioned As the paint cures some of the chemicals vaporize The vapors are not poisonous but they do smell bad Fresh paint fumes can also cause false alarms in smoke detectors So when you first light your insert be prepared by opening doors and or windows to ventilate the house As you burn hotter and hotter fires more of the painted surf...

Page 17: ...r the conditions 3 3 2 The Top Down Fire The top down fire starting method solves two problems with the conventional method first it does not collapse and smother itself as it burns and second it is not necessary to build up the fire gradually because the firebox is loaded before the fire is lit A top down fire can provide up to two hours of heating or more The top down method only works properly ...

Page 18: ...wood Do not expect steady heat output from your insert It is normal for its surface temperature to rise after a new load of wood is ignited and for its temperature to gradually decline as the fire progresses This rising and falling of temperature can be matched to your household routines For example the area temperature can be cooler when you are active such as when doing housework or cooking and ...

Page 19: ...normally contain some live charcoal that can stay hot for several days If the ashes are disposed of by burial in soil or otherwise locally dispersed they should be retained in the closed container until all cinders have thoroughly cooled Other waste should not be placed in this container NEVER STORE ASHES INDOORS OR IN A NON METALIC CONTAINER OR ON A WOODEN DECK 3 4 3 Raking Charcoal Rekindle the ...

Page 20: ...sert This heat surge is welcome when the room temperature is a little lower than desirable but not welcome if the space is already warm Therefore allow each load of wood to burn down so that the space begins to cool off a little before loading Letting the space cool before loading is one of the secrets to clean burning and effective zone heating 3 4 5 Turning Down the Air Supply Once the firewood ...

Page 21: ...eat demand Your house will need far less heat in October than in January to be kept at a comfortable temperature If you fill the firebox full in fall weather you will either overheat the space or turn the insert down so much that the fire will be smoky and inefficient Here are some suggestions for building fires to match different heat demand 3 5 1 1 Small Fires to Take the Chill off the House To ...

Page 22: ...e biggest pieces at the back of the firebox and place the rest of the pieces compactly A densely built fire like this will produce the longest burn your insert is capable of You will need to be cautious when building fires like this because if the air is turned down too much the fire could smoulder Make sure the wood is flaming brightly before leaving the fire to burn 3 5 1 4 Maximum Burn Cycle Ti...

Page 23: ...ad the firebox for a much longer burn Shorter burn cycles make it easier to match the heat output of the insert to the heat demand of the space 3 5 1 5 North South Fires Versus East West Fires In fireboxes that are roughly square wood can be loaded so that looking through the glass door you see the ends of the logs north south or the sides of the logs east west East west loads that are built compa...

Page 24: ...r try to clean the glass when the insert is hot In spring and fall when the insert is run at lower temperatures you may see some light brown stains forming especially at the lower corners of the glass This indicates that the fire has been smoky and some of the smoke has condensed on the glass When the weather is mild you may find that letting the fire go out is better than trying to maintain a con...

Page 25: ...e the screwdriver to scrape the old gasket adhesive from the door Now run a 1 4 6 mm bead of high temperature silicone in the door gasket groove Starting from the middle of the hinge side press the gasket into the groove Do not stretch the gasket as you place it Leave the gasket about 1 2 long when you cut it and press the end into the groove Tuck any loose fibres under the gasket and into the sil...

Page 26: ...ughen 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 paint that was originally used on the insert which is available in spray cans See your dealer for details 4 2 Chimney and Chimney Liner Maintenance 4 2 1 Why Chimney Cleaning is Necessary Wood smoke can condense inside the chimney liner and chimney forming a combustibl...

Page 27: ...shes The brush is forced up and down inside the chimney flue to scrub off the creosote The chimney should be checked regularly for creosote build up Inspection and cleaning of the chimney can be facilitated by removing the baffle CAUTION OPERATION OF YOUR CW2900 WITHOUT THE BAFFLE MAY CAUSE UNSAFE AND HAZARDOUS TEMPERATURE CONDITIONS AND WILL VOID THE WARRANTY NOTE Before installing the firebrick ...

Page 28: ...ently exists no UL or ULC standard specific to that type of installation The factory built zero clearance fireplace must be listed that is safety certified by an accredited certification agency such as UL ULC Omni or Intertek It must be suitable for use with solid fuel and nothing in the owner s manual must specifically prohibit the installation of a fireplace insert When in doubt check with the f...

Page 29: ... fireplace should be inspected to make sure that there is adequate clearance to combustibles both exposed combustibles to the top side and front as well as concealed combustibles in the chimney and mantle area Your local inspector should have information on whether older fireplaces are of adequate construction 5 OPENING SIZE Refer to the MINIMUM MASONRY OPENING table in Section 8 5 for suitable si...

Page 30: ...Y AIR DISTRIBUTION DUCTWORK UNLESS SPECIFICALLY APPROVED FOR SUCH INSTALLATION DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE THE INSERT AND ITS STAINLESS STEEL CHIMNEY LINER ARE TO BE INSTALLED ONLY WITHIN A LINED MASONRY CHIMNEY AND MASONRY FIREPLACE CONFORMING TO BUILDING CODES FOR USE WITH SOLID FUEL DO NOT REMOVE BRICKS OR MORTAR FROM THE EXISTING FIREPLACE WHEN INSTALLI...

Page 31: ... the chimney The chimney liner must conform to the Class 3 requirements of CAN ULC S635 Standard for Lining Systems for Existing Masonry or Factory built Chimneys and Vents or CAN ULC S640 Standard for Lining Systems for New Masonry Chimneys NOTE The Insert is not approved for use with a so called positive flue connection to the clay tile of a masonry chimney ...

Page 32: ...fer to it in order to have a safe and compliant installation In addition you will find information about your insert model serial number etc You can find the certification label to the front on the outside of the air jacket of the insert To access the certification label the faceplate may need to be removed Therefore we recommend that you note the insert s serial number on this manual since it wil...

Page 33: ...lf can be installed at less than 22 559 mm above the top of the insert If the depth of the mantel shelf is not listed in the table below add 14 356 mm to the depth of your mantel shelf to obtain the safe positioning of your mantel shelf For example for a 9 229 mm mantel shelf the safe positioning would be 23 584 mm above the top of the insert 14 356 mm 9 229 mm Note that you can reduce the mantel ...

Page 34: ...ative or zero you do not have to add more floor protection in front of the unit because the masonry fireplace hearth extension is large enough If the value D is positive you will need floor protection in front of the hearth extension at least equivalent to the result D Here is a sample calculation to determine the need to add a non combustible materials floor protection For someone living in the U...

Page 35: ...sed at least 4 from the floor protection a non combustible material without an R factor is sufficient If non combustible material floor protection needs to be added in front of and level with the hearth extension of the masonry fireplace an R factor equal to or greater than 2 00 is required ...

Page 36: ...o or greater than the R value requirements the combination is acceptable To know the R values of some selected materials see table Thermal Characteristics of Common Floor Protection Materials Example Required floor protection R of 1 00 Proposed materials four inches of brick and one inch of Durock board Four inches of brick R 4 x 0 2 0 8 plus 1 inch of Durock R 1 x 0 52 0 52 0 8 0 52 1 32 This R v...

Page 37: ... Cement mortar 5 00 0 2 Common brick 5 00 0 2 Face brick 9 00 0 11 Marble 14 3 20 00 0 07 0 05 Ceramic tile 12 5 0 008 Concrete 1 050 0 950 Mineral wool insulation 0 320 3 120 Limestone 6 5 0 153 Ceramic board Fibremax 0 450 2 2 Horizontal still air 1 8 0 135 0 920 Information as reported by manufacturers and other resources For a 1 8 thickness You cannot stack horizontal still air to accumulate R...

Page 38: ... compliance with the building code requirements To determine the minimum and maximum projection of the insert refer to table Data for floor protection calculation Data for Floor Protection Calculation MAXIMUM EXTENDED A B Note 1 C D E AIR JACKET INCHES Dimension of the hearth extension CAN 18 USA 16 5 3 16 D B A C 8 13 16 Flush with fireplace facing MILLIMETRES CAN 457 mm USA 406 mm 132 mm D B A C...

Page 39: ...CW2900 Installation and Operation Manual 39 7 5 Minimum Masonry Opening Clearances to Combustibles and Floor Protector ...

Page 40: ...e mantel shelf clearance with the use of a Heat Shield sold separately See Appendix 4 Top Surround and Mantel Shelf Heat Shield Installation AC01317 for détail Where a fresh air intake is needed we suggest you add a minimum of 4 to the width of the minimum masonry opening Note 1 From door opening The depth of hearth extension in front of the insert is included in the calculation of the floor prote...

Page 41: ...Plate To reduce the possibility of a cold air draft from the masonry chimney to get into the room when the insert in not working the installation of a sheet metal block off plate A in the drawing below is recommended Once you have made the block off plate to the proper dimension cut the pipe hole slightly larger than the liner s diameter and then install the liner through this hole Set the Block o...

Page 42: ...ner rigid or flexible to ensure satisfactory performance To ensure an optimal draft we also strongly recommend adding a minimum of 12 rigid liner between the top of the masonry chimney and the rain cap In all cases liners should be installed in accordance with the liner manufacturer s instructions including instructions for extension above the masonry Use Listed Chimney Liners UL 1777 CAN ULC S635...

Page 43: ...liner Follow the chimney liner starter adapter manufacturer s instructions In order to connect the chimney liner starter adapter to the flue outlet you can install the brackets with the screws that are in the owner s manual kit Using a powered driver secure the three brackets with the three screws provided 30131 on top of the insert in the three holes in front of the flue outlet The long end of th...

Page 44: ...ases and may result in smoke roll out from the insert when it s door is opened for loading Only use an offset adaptor if a there is no other alternative and b if the total height of the fireplace and chimney is at least 20 feet If you must install a liner offset adapter secure the three brackets with the three screws provided 30131 on top of the insert in the three holes in front of the flue outle...

Page 45: ...ir in the house is buoyant so it tends to rise This tendency of warm air to rise creates a slight pressure difference in the house Called stack effect it produces a slightly negative pressure low in the house relative to outside and a slightly positive pressure zone high in the house If there is no fire burning in a heater connected to a chimney that is shorter than the warm space inside the house...

Page 46: ...ffected by wind pressures on the house Contrary to commonly expressed concerns almost all tightly sealed new houses have enough natural leakage to provide the small amount of air needed by the insert The only case in which the wood insert may not have adequate access to combustion air is if the operation of a powerful exhaust device such as a kitchen range exhaust causes the pressure in the house ...

Page 47: ...tion Manual 47 Appendix 1 Blower Installation Position the blower assembly under the ash lip and push it against the insert Fasten the blower assembly with 2 Torx type screws provided with the insert using a ratchet and a Torx bit ...

Page 48: ... rectangular knock out plate A located on the left or right side of the convection air jacket Choose the side that is best for your installation Then install the fresh air kit adapter B using 4 screws C Secure the flexible pipe E part AC02090 not supplied to the adapter B using one of the adjustable pipe clamps D Secure the other end of the pipe to the outside wall termination F using the second a...

Page 49: ...he finished side down on a flat soft non abrasive surface Line up the holes from of the upper panel with the holes of side panel and secure them together using the bolts and nuts provided Repeat this operation to assemble the other side panel Note If the installation of a heat radiation shield is required to reduce clearances from the shelf and top surround refer to Appendix 4 Top Surround and Man...

Page 50: ...nd Operation Manual 50 Once the faceplate is assembled align the notches located at the top of each side of the faceplate opening with the top of the insert and slide the assembly toward the front of the insert see DETAIL A ...

Page 51: ...f the convection air jacket box until the faceplate is properly seated on the floor of the hearth extension Then install one faceplate retainer spring on each side of the faceplate and attach the other end of the spring to the brackets on the left and right sides of the insert as shown in DETAIL A Push the faceplate against the fireplace s front ...

Page 52: ...mpliance of a Combustible Mantel Shelf for additional details MAXIMUM MANTEL SHELF DIMENSION X MANTEL SHELF CLEARANCES I TOP SURROUND CLEARANCES H 8 203 mm 12 305 mm 11 279 mm Install the heat shield on the faceplate assembled with the faceplate extension using 3 self drilling screws included in the kit The heat shield should be pointing upwards Once the heat shield is positioned install the facep...

Page 53: ...ing 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 Warning Never leave the stove unattended while in use with the fire screen ...

Page 54: ...t end of the tube into the rear left channel 2 Align the notch in the left end of the tube with the key of the left air channel hole Using a Wise grip hold the tube and lock it in place by turning the tube as shown in DETAIL A Make sure the notch reaches the end of the key way 3 Repeat steps 1 and 2 for the two tubes in the back then install the baffle before installing the two front tubes 4 To re...

Page 55: ...r tubes A can be replaced without removing the baffle board B Important Notes The air tubes are identified for placement as follows Model Type of tube CW2900 Insert Front 30 holes of 0 147 Middle front 30 holes of 0 136 Middle rear 20 holes of 0 128 Rear 15 holes of 0 128 ...

Page 56: ...e removed To remove your insert follow these instructions Remove the faceplate retainer springs B holding the faceplate C to the Insert Remove the faceplate by pulling it towards you Remove the blower assembly D Remove the three screws securing the pipe connector A Unscrew the leveling bolts E located on each side of the insert Move the insert to perform maintenance ...

Page 57: ...CW2900 Installation and Operation Manual 57 Appendix 8 Exploded Diagram and Parts List ...

Page 58: ...A X 1 1 2 LONG 2 10 SE63001 REPLACEMENT GLASS WITH GASKET S31141 1 11 AC06400 BLACK SELF ADHESIVE GLASS GASKET KIT 6 1 12 PL55105 LOWER GLASS RETAINER 1 13 PL55106 UPPER GLASS RETAINER 2 14 30124 SCREW 8 32 X 5 16 TRUSS QUADREX ZINC 7 15 PL65582 ASH LIP 1 16 30060 THREAD CUTTING SCREW 1 4 20 x 1 2 F HEX STEEL SLOT WASHER C102 ZINC 6 17 SE65584 FAN ASSEMBLY 120 CFM 115V 60Hz 1 18 44070 CROSSFLOW BL...

Page 59: ...TE KIT 32 X 50 1 41 30472 SPRING 1 2 OUTSIDE DIA X 3 LONG 2 42 21387 TOP AIR DEFLECTOR INSULATION 1 43 PL65505 TOP AIR DEFLECTOR PROTECTOR 1 44 29010 4 1 2 X 9 X 1 1 4 REFRACTORY BRICK 17 45 PL36021 2 1 8 X 9 X 1 1 4 REFRACTORY BRICK 2 46 PL36103 3 1 2 X 4 X 1 1 4 REFRACTORY BRICK 1 47 PL65514 FRONT SECONDARY AIR TUBE 1 48 PL65515 MIDDLE FRONT SECONDARY AIR TUBE 1 49 PL65516 MIDDLE REAR SECONDARY ...

Page 60: ... not exceed the wholesale price of the replacement part All parts and labour costs covered by this warranty are limited according to the table below The manufacturer at its discretion may decide to repair or replace any part or unit after inspection and investigation of the defect The manufacturer may at its discretion fully discharge all obligations with respect to this warranty by refunding the ...

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