Superior CST38MH User's Manual
Contents
1. 116 F 20 4 OMNI Test Laboratories Inc CONGRATULATIONS In selecting this SUPERIOR Wood Burning Appliance you have chosen the finest and most dependable fireplace to be found anywhere Its a beautiful prestigious alternative to a masonry wood burning fireplace Welcome to a Family of tens of thousands of satisfied SUPERIOR Fireplace Owners Please carefully read and follow all of the instructions found in this manual Please pay special attention to the safety instructions provided in this manual The Homeowner s Care and Operation Instructions included here will assure that you have many years of dependable and enjoyable service from your SUPERIOR product TABLE OF CONTENTS Safety Precautions c ccceceeeeee Page 2 General Information Page 2 FUE Sii ceee e EERE Page 3 Decorative Gas Log Sets 000 Page 3 Disposal Of AShES ccccceeeeeeeees Page 3 Softwood Vs Hardwood 000 Page 3 Starting A Fire cececeseseseeeeeeeee Page 4 Glass DOOS ss sdisceaun eceeeieis Page 4 Combustion Ail eecceceteteteteteeeeee Page 5 Damper Operation ccccceeeeeeeees Page 5 Lintel Extension 6 Refractories nann 6 Maintenance Guidelines 0 Page 6 Twice A Year CheCk Up ccceeceees Page 6 Creosote Formation And Removal Page 7 Troubleshooting iieii Page 7 Accessories amp Components Page 8 Replacement Parts ccceeeee Page 8 IMPORTANT GENERAL S2. Look up from inside the fireplace damper open to see any obstructions in the lower flue area If present shut the damper and glass doors if installed to seal the firebox and contain any sootthat might fall If your do not have glass doors installed adamp sheet covering the fireplace opening and sealed with masking tape will do Then clean the flue from the top down if an offset system clean per Step 2 using a proper size chimney brush with flexible pole sections Don t open the doors or remove the sheet until all soot has settled Vacuum don t sweep Check the metal flashing and seals around your chimney Seal any cracks or loose nailhead openings to prevent roof leaks Clean the firebox thoroughly by using a soft brush or equivalent N oo gt oa A WARNING Continued overfiring can perma nently damage your fireplace system Some examples of overfiring are e Burning quantities of scrap lumber pine branches paper or cardboard boxes which exceed the volume of the normal log fire e Burning trash chemicals or chemically treated combus tibles Creosote Formation and 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 Creosote makes an extremely hot fire when ig
3. as a supplemental heating device only it is not intended to heat your entire home je Less Than 10 Figure 7 WARRANTY e This fireplace is covered by a limited warranty detailed separately from this document e Retain this manual File it with your other documents for future reference PRODUCT REFERENCE INFORMATION If you encounter any problems or have any questions concerning the installation or application of this system please contact your distributor or installer For the number of your nearest Superior dealer please call 1 800 953 6669 LHP 1110 West Taft Avenue Orange CA 92865 REPLACEMENT PARTS A complete parts list is found at the end of this manual Use only parts supplied from the manu facturer Normally all parts should be ordered through your Superior distributor or dealer Parts will be shipped at prevailing prices at time of order When ordering repair parts always give the following information 1 The model number of the appliance 2 The serial number of the appliance 3 The part number 4 The description of the part 5 The quantity required 6 The installation date of the appliance Your Fireplace s Model Number Your Fireplace s Serial Number The Date On Which Your Fireplace Was Installed Your Dealer s Name NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 7 ACCESSORIES AND COMPONENTS MODEL CST38MH Aluminum Doors Your fireplace can be fitted with opti
4. 51 SUPERIOR RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE NATIONAL We recommend that our woodburning INSTITUTE hearth products be installed and serviced NFI by professionals who are certified in the U S by the National Fireplace Institute NFI as NFI Woodburning Specialists or who are certified in Canada by CERTIFIED Wood Energy Technical www nficertified org Training WETT Wood Energy HOMEOWNER S CARE AND OPERATION INSTRUCTIONS WOOD BURNING FIREPLACES MODEL CST38MH 36 Multi View Wood Burning Fireplaces P N 725 036M REV B 03 2006 MODELS CST38MH The information contained in this manual applies to all model fireplaces identified on this page This information will help you obtain safe and dependable service from your fireplace system Keep this document in a Safe place for future reference Before you start your first fire read this Care and Operations Manual carefully to be sure you understand your fireplace system completely Failure to follow these suggestions could result in hazardous operation or fireplace malfunction creating a serious potential for personal injury and or property damage If you have any questions regarding the safe use or operation of your fireplace contact your local distributor or your contractor builder Most chimney systems will require onsite completion after placement of the manufactured home Beaverton Oregon USA Tested amp Listed By OTL Report No
5. AFETY PRECAUTIONS READ AND UNDERSTAND THESE SAFETY RULES BEFORE YOUR FIRST FIRE SAFETY PRECAUTIONS A WARNING To avoid the risk of damaging fireplace materials and increas ing the risk of fire do notuse the fireplace to cook or warm food 1 NEVER LEAVE CHILDREN UNATTEND ED WHEN THERE IS A FIRE BURNING IN THE FIREPLACE 2 When burning wood use SOLID NATURAL DRY WELL SEASONED WOOD ONLY Hardwoods are recommended soft woods tend to burn very quickly e DO NOT burn treated wood charcoal coal trash driftwood woods dipped in tar Christ mas tree greens pitch pine tar creosote chemical chimney cleaners flame colorants polystyrene packaging wood products with synthetic binders i e plywood Plywood lumber and other misc materials can produce abnormally hightemperatures sputtering and smoking fires and may contain hazardous chemicals to treat insects and fungus e When using newspapers to start a wood fire remove and do not burn the colored comic or ad sections The colored inks may contain lead and can produce toxic gases If Artificial Logs are burned it is required that the logs are UL safety listed see labeling or documention provided with logs Read and followthe log manufacturer s instructions Do not treat artificial logs made from sawdust and wax the same way you treat real natural wood logs Use only one at a time IMPORTANT Burning unapproved fuels can produce excessive temperatures bey
6. Each Use s Clean the firebox of excessive ashes Some owners prefer to leave a small layer to insulate the cold refractory below the grate which helps fire starting If your particular model fireplace has a fac tory supplied grate attached itis permissible to remove the grate for cleaning however the grate must be re attached to the fireplace before the next burn 2 Keep the fireplace screens clean so combus tion air flows freely 3 Spot check the brick like refractory for small cracks Heat from the fire expands it slightly When it cools it contracts NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Twice A Year Check Up Normally twice a year you should inspect your fireplace following this list 1 Inspect the opening in your chimney top and remove any debris that could clog it The cap is usually held in place by four 4 screws which remove easily for checking or cleaning the full length of the flue from above Remove the chimney top while wear ing gloves to guard against any sharp metal edges Inspect the entire flue from the top down for obstructions suchas birds nests leaves etc This may be done by using a flexible handled chimney cleaning brush If the chimney contains offset return elbows a soft brush cleaning from the top down to any elbow and then from the firebox up to the offset return section is the proper method The beam from a powerful flashlight will help in this inspection
7. a tarp or under a roof d Do not stack wood directly against the walls of your home Be a knowledgeable wood buyer e There is a difference in cord sizes A standard cord stack of logs is 4 ft high by 8 ft long by 4 ft deep or the equivalent of this cubic footage A face cord is the same height and length as a standard cord but the depth is only the length of the logs 12 18 or 24 inches A face cord can contain as little as 25 ofthe wood found ina standard cord e lf you buy by the ton remember that wood becomes lighter as it dries When buying green or wet wood ask for some extra poundage to allow for the extra water you will be getting When comparing woods of the same mois ture content and same species we find most woods have approximately the same heating potential per pound However most wood is sold by volume not by weight To determine the best heating source look at the density of various wood types Density is the weight for a given size The higher the density the more potential heat output A standard cord has a volume of 128 cubic feet This figure also includes the air space between and around the wood The actual volume ina standard cord is between 60 and 100 cubic feet depending on how tightly the wood is packed Assuming that you are comparing two standard cords of different species but the same volume and moisture content the denser species will provide more BTU s The table of wood species de
8. ance For the first few uses build small fires not roaring infernos The materials used in the refractories contain and absorb moisture It is important to cure the refractories by building only modest fires Under normal usage it is expected that hairline cracks will appear in the refractory surface These hairline cracks do not affect the safe operation of the fireplace Refractories should be replaced when 1 The crack opens more than 1 4 19 mm 2 Pitting in the surface is extensive and pits become deeper than 3 16 4 76 mm 3 Any piece of refractory larger than 2 51 mm in radius and 3 16 deep becomes dislodged If your refractory has a crack less than 1 4 19 mm in width a simple Refractory Patch Kit Model RPK can easily be used to fill the crack and repair the refractory If conditions 1 2 or 3 occur the refractory should be replaced For minor defects repair as noted above MAINTENANCE GUIDELINES Yourfireplace is designed to operate trouble free with minimum maintenance However like any fine appliance it deserves and requires some housekeeping attention Your fireplace will perform better and certainly look more attractive to family and friends if it is cleaned before each use Before the first seasonal use in Autumn and after the last fire in Spring itis important to inspect the fireplace system carefully We recommend at least two complete fireplace inspections a year Before
9. eculiarities average ambient air pressure and humidity may effect the performance of this fireplace If an unac ceptable amount of smoking occurs while the doors are open the adjustable lintel can be moved to correct the smoking condition The lintel extension can be lowered using a predrilled hole located at the top of the lintel extension See Figure 6 To lower the lintel extension on Model CST38MH remove the screw from each end of the lintel extension located behind the screen assembly Slide the lintel extension down and align the upper holes in the lintel extension with the holes in the lintel frame Reattach using the screws previously removed Repeat this procedure for the lintel extension on the opposite side of the fireplace See Figure 6 Front Frame Lintel Frame a ON Lowest Position 2 50 mm Original Position Lintel Extension Figure 6 REFRACTORIES All fireboxes contain a furnace refractory floor Some models also have refractory sides and backs These refractories are reinforced with steel but can be broken by improper use Dropping logs on the bottom refractory and building fires directly againstthe refractories can cause premature burnout of these components It may easily be repaired or replaced at costs far below repair and maintenance for masonry fireplaces Proper care and burn in of the firebox will prolong the period of enjoyment without extensive mainten
10. ed to heat your entire home Their unique designs are intended for architectural decorating and aesthetic considerations Using this fireplace to heat large areas may lead to overfiring and void your warranty FUELS Never Use Coal in Your Fireplace Your fireplace system is not designed to be used with coal derivative products The com bustion process of certain types of coal can deposit corrosive materials in the fireplace and chimney system which can lead to premature product failure Never use coal as a fuel in this fireplace system DECORATIVE GAS LOG SETS If your fireplace system was installed with a gas line and you wish to install a decorative gas appli ance gas log set it must contain an automatic shut off device and be installed in accordance with A CAUTION When using the decorative gas appliance the fireplace damper must be set in the fully open position A WARNING This fireplace has NOT been tested with an unvented gas log set To reduce risk of fire or injury do not install an unvented gas log set into this fireplace Wood Fuel Pointers Wood is a wonderful renewable fuel source Normally it burns clean leaving only a minimum of waste ash provides comforting heat and can provide a variety of aromas and visual images You will want to know which woods are best for use Sometimes you may wanta quick shortfire to offset a morning chill Soft woods are prefer able in this case Other times you
11. er or distributor for a list of Lennox fireplace inserts approved for installation into your fireplace DO NOT install a fireplace insert from any another manufacturer 13 If you are using your fireplace as a decora tive appliance such as with a permanently installed vented gas log set oo a gt o o the fireplace damper must be permanently fixed in the open position A WARNING This fireplace has not been tested with an unvented gas log set To reduce risk of fire or injury do not install an unvented gas log set into this fireplace 14 Always ensure that an adequate supply of replacement combustion air from the outside of the house is accessible to the fire to support normal combustion Fireplaces consume large volumes of air during the normal combustion process Inthe eventthe home is tightly sealed with modern energy efficient features an optional combustion air kit may not provide all the air required to support combustion The manufacturer is not responsible for any smoking or related problems that may result from the lack of adequate combustion air Itis the responsibil ity of the builder contractor to ensure that adequate combustion air has been provided for the fireplace 15 The manufacturer does not warranty smoke free operation nor are we responsible for in adequate system draft caused by mechanical systems general construction conditions inadequate chimney heights adverse wind co
12. ering should be removed after instal lation of the fireplace before its use Under the plastic covering is a protective lacquer coating which should not be removed In some instances ifitis removed irreversible damage to the brass finish could occur Refer to the following for specific information onplated polished brass Please understand that the heat of the fire will cause the protective lacquer finish to slightly change to a light caramel color Do not be alarmed as this is a normal occurrence COMBUSTION AIR Aproper amount of combustion air is important for your fireplace Fireplaces consume large amounts of oxygen It is important to allow an adequate supply of air If the fireplace is not equipped with an outside air kit it may not obtain sufficient amounts of combustion air from inside the house or structure in which it is installed Therefore the fire may draw from an outside air source and pull air in through the chimney This may cause smoke spillage into the room Smoke spillage often occurs when a fire is first started until the fireplace and the chimney has had the opportunity to come up to temperature and to begin to function normally If smoke spillage problems persist a window may be opened just a crack to allow the proper flow of combustion air to the fireplace If your fireplace is equipped with an outside combustion air kit keep open at all times when fire is burning and close when fire is out
13. kindling and newspaper in conjunction with starting a fire with split hardwood logs Here are some guidelines to remember _ 2 oo gt ai o Softwoods produce fast warming and shorter fires Hardwoods burn less vigorously have shorter flames and produce steady glowing coals Asageneral rule denser woods contain more potential heat per pound Most softwoods offer moderate heat value per pound Different woods vary widely in flame heights flame intensities smoke characteristics and in sparking Most hardwoods do not spark Most freshly cut green wood will not burn welland will smoke Green wood can be from 10 to 40 percent less efficient than air dried seasoned wood Moisture and resin found inside unseasoned wood cells will build up pressure under heat and explode as sparks Most wood needs to be seasoned 9 to 12 months to reduce the moisture content and produce good steady fires When moisture content is reduced from 60 to 20 the gain in heat potential is nearly 7 Proper storage of wood especially during seasoning is essential We recommend that you a Never store wood on the ground This will cause rotting and insect infiltration Raise wood on flat rock or scrap wood NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE oo b Stack wood loosely to allow air circulation c Store wood where it will not be exces sively exposed to weather such as under
14. mage the finish of your glass door Inmostcases aclean dampened towel followed by a dry towel will clean the glass To remove any stubborn stains from the glass use a mild soap solution and a towel dampened with clean water and then dry with a clean dry towel Glass Door Operating Safety Precautions and Instructions e The fire must always be confined within the boundaries of the fuel grate The fireplace screens must always be closed whenever the fireplace is operated Never slam the glass door since it could cause the glass to break e Do not build excessively large or hot fires Scorching or discoloring of the solid brass or plated brass trim could result Extreme temperature changes can cause glass breakage do not build a hot fire and close the glass doors if the doors are cold e f the tempered glass pane becomes scratched or chipped it creates a weakness in the glass which can cause the glass to break when heated Replace the pane of glass by contacting your nearest dealer or distributor A WARNING These fireplaces should be oper ated only with the doors fully closed Figure 3 Ay CAUTION Do not touch the doors with your hands while the fireplace is in use Always use door handles Doors will become very hot when fireplace is in use A IMPORTANT Plated polished brass glass doors may have a plastic cov ering over all brass pieces for protection during shipping and handling The plastic cov
15. nditions and or unusual environmental factors or conditions beyond our control GENERAL INFORMATION l The all steel multi wall firebox is the heat center of the system It is well insulated for safe clearance to combustibles The hearth floor of the firebox is a brick pat tern reinforced refractory base for your fire On certain models the sides and rear of the firebox are also refractory for authenticity and safety The metal chimney sections extending from the firebox top to beyond your roof are two walled and air cooled The inner passage or flue provides the exit for smoke and gases The flue damper is either fully open or fully closed by the handle you find in the center and top of the firebox It must be open when fire is present so smoke and gases can escape It should be closed only when the fire is completely out keeping room air from being lost up the flue Closed screens prevent fire sparks and embers from popping out of the firebox while a fire is burning Pull screens back when adding wood to the firebox Why use a fuel grate Besides positioning the firebed properly it protects the refractory floor back and sides of the fireplace Further it ensures a proper flow of combustion air into and around the firebed The grate must be used at all times when burning Your warranty may be voided without the use of this grate N oo gt ol a n Remember your fireplace is not intend
16. nited The chimney should be inspected at least twice yearly during the heating season to determine if a creosote build up has occurred If creosote has accumulated it should be re moved to reduce the risk of a chimney fire If creosote build up is found do not use chemical chimney cleaners that are poured on a hot fire The manufacturer considers them dangerous and they generally only work on the flue section nearest the fire leaving the rest of the flue unaffected It is best to take the time to clean the flue as previously described or have the chimney professionally cleaned by a qualified chimney sweep TROUBLESHOOTING Note Smoke Free operation is not warranted nor are we responsible for inadequate system draft general construction conditions inad equate chimney heights adverse wind condi tions and or unusual environmental factors or conditions beyond our control Ifyou do experience a problem here are several things to check 1 Remember always check to ensure your flue damper is in the open position before lighting a fire When lighting your fire a little smoke may escape into the room more likely if the chimney is cold To correct this hold a lighted newspaper up inside the firebox near the open flue damper This will turn around any downdraft and clear the flue of cold air As your log fire burns below the updraft will improve as the chimney heats up Is your fire too far forward Move it t
17. nsities reveals more helpful guidelines Figure 1 HARDWOODS DENSITY Alser Red Al Ash 49 60 Aspen Basswood American Beech American Birch Butternut Cherry Black Chestnut American Cottonwood Elm Hackberry Hickory Pecan Hickory True Honey locust Locust Black Magnolia Maple Oak Red Oak White Poplar Sassafras Sweet gum Sycamore American Tanoak Tupelo Walnut Black Willow Black SOFTWOODS Bald cypress Cedar Douglas Fir Fir Hemlock Larch Western Pine Redwood Spruce Tamarack STARTING A FIRE 1 To start a fire in your fireplace properly first check the operation of the flue damper To open the damper on the CST fireplaces push the center damper handle straight up To close pull handle down See Figure 5 2 The grate in the firebox should be centered on or over the bottom hearth so your fire can breath properly Crumble and twist plenty of newspapers UNDER the grate and criss cross some small dry kindling sticks on top of the paper or on the bottom of the grate oo Build a pyramid of three split logs split will start much faster Arrange the uneven wood to provide plenty of air space between Now light the paper at both sides of the firebox Close the screens to prevent the escape of sparks and embers Close the damper only when your fire is completely out and ashes are cold Keep closed when fireplace is notin use to prevent unnecessary lo
18. onal doors with either a Bright Brass or Brushed Stainless finish e Model 38ABF doors are black and are provided as a standard part with these fireplaces Bi Fold Doors e Model 38ABF BB doors are optional and have a 12M07 38ABF 38 Bi Fold Door Black beautiful bright brass finish 12M08 38ABF BB 38 Bi Fold Door Bright Brass e Model 38ABF BS doors are optional and have a 12M09 38ABF BS 38 Bi Fold Door Brushed Stainless beautiful brushed stainless finish To ensure warranty and to prevent a potential fire hazard do not use any other doors on these appli ances REPLACEMENT PARTS Fireplace Assembly Grate Model SGR 38B Paint Touchup Black FTPK B NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE The manufacturer reserves the right to make changes at any time without notice in design materials specifications prices and also to discontinue colors styles and products Consult your local distributor for fireplace code information LHP Printed in U S A 2006 by LHP 1110 West Taft Avenue P N 725 036M REV B 03 2006 Orange CA 92865
19. ond the design capabilities of the fireplace and may produce excess sparks or may contain hazardous chemicals Burning unapproved fuels can resultin a chimney fire ahousefire personal injury death or loss of property NEVER use gasoline gasoline type lantern fuel kerosene charcoal lighter fluid or similar liquids to start or freshen up a fire in this fireplace Keep any flammable liquids a safe distance from the fireplace Keep the chimney damper open while any fire or smoldering embers are present Never block or restrict the room air intake grille across the bottom front or the warm air outlet grille across the top front of the fireplace With the fire burning close the protective mesh screens to keep sparks and embers INSIDE the firebox 7 Keep any combustible furniture or decorative pillows at least 36 914 mm on the sides and 60 1524 mm to the front from the fireplace opening Never leave your fireplace unattended while it is burning Be careful adding wood fuel to the fire or handling fireplace tools such as shovels tongs or pokers 10 Never modify or alter your fireplace system in any way To do so may create a potential fire hazard and void the Limited Warranty 11 The bottom refractory can be cracked by excessive abuse such as tossing heavy logs onto the grate or gouging with fireplace tools Exercise caution when adding wood to your fireplace 12 Fireplace Inserts Contact your deal
20. oward the back with your poker Keep the fire well within the confines of your fuel grate Keepyourfire up onthe grate and the refractory below free of excessive ashes The fire needs plenty of air movement around the logs If smoking occurs an hour or two after lighting the fire perhaps your well insulated house is too airtight and there is scarcely any way for replacement air to enter and feed the fire Check to see if your outside combustion air kit if installed is open Check outside to ensure no obstructions are in front of exterior air entry Open a window slightly open doors to one or two rooms and see if this stops the smoking N oo gt ol 6 Is a vent fan exhaust hood or central heating cooling system stealing combustion air from your fireplace If their volume is high enough this can cause negative pressure and an unwanted downdraft and smoking 7 Is your wood fuel too wet or unseasoned Or does it contain some chemical substance that causes sputtering smoking and toxic fumes 8 Figure 7 illustrates the correct height of your chimney top It is unlikely that your installation does not adhere to the installation instructions However if not correct you could experience an unusual downdraft Usually the best solution is to increase the chimney height This may also be necessary if nearby trees adjoining roof lines or a hill is causing a downdraft condition 9 Remember your fireplace has been designed
21. ss of heated or cooled air GLASS DOORS O oO A These fireplaces come standard with bi fold design glass door enclosures with tempered glass panes Removal or modifications to the standard glass doors may void your warranty and cause a smoking condition A CAUTION If a smoking condition exists glass doors should be closed during fireplace operation A CAUTION Glass and metal frames get hot Always use handles to open and close the doors A WARNING Be aware that safety glass is unpredictable when hot and may break expelling hot glass into the room Advise all family members to remain well away from the fireplace when operat ing with doors closed to avoid any possible personal injury A WARNING These fireplaces should be oper ated with both sets of glass doors fully closed If the doors are left open or partially closed gas and flame may be drawn out of the fireplace opening creating risks of both fire and smoke Refer to Figures 2 and 3 for proper operating conditions NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Spring Clip Upper Door Guide Track Pivot Pin a Both Sets of Glass Doors Fully Closed Figure 3 Bi fold Doors top view Care and Cleaning of Your Glass Doors Never clean the glass when the doors are hot Do not use ammonia or ammonia based glass or household cleaner to clean the glass or the door frame An ammonia based cleaner will da
22. to prevent cold air intrusion Combustion Air Control The operation and location of the outside air control lever varies to some extent on different fireplace models On the Custom Series fireplaces the control lever that operates the outside combustion air valve is located on one lower side behind the screen panel Push the lever all the way in to close the air valve and pull the lever all the way out to open the air valve Figure 4 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE sl The outside air damper should be kept closed on all fireplaces except when the fireplace is in operation If there is no heat present in the firebox the air damper should be closed at night before retiring to prevent intrusion of outside air into the home Figure 4 DAMPER OPERATION The damper is controlled through the use of a control lever located within the firebox opening at the top center just behind the firebox lintel Figure 5 The control lever snaps into place at the extreme range of motion up and back in the closed position When pulled forward and down the damper is open Damper j Damper Closed Open Lintel Figure 5 LINTEL EXTENSION These Custom Multi Open Factory Built Fireplaces were designed tested and listed with an 18 457 mm high viewing area floor to lintel However varying conditions such as altitude climate wood type moisture content of fuel dwelling design p
23. would want more slow burning and a uniform heat output Hardwoods are preferable for this use The amount of heat available from the logs will be about equal ona weight basis However logs are generally not weighed so the amount of heat will depend on 1 The type of wood used 2 How dry it is 3 How many logs you put in 4 The size of the logs The last statement means that one big log weigh ing 10 pounds has as much heating potential as 10 pounds of twigs However air cannot get at the solid log to feed the fire so the solid log will burn slowly While you would get the same amount of heat out of either fire the smaller the pieces of wood and the more air space around them the faster the fire will burn DISPOSAL OF ASHES Ashes should be placed ina metal container with a tight fitting lid The closed container of ashes should be placed on anon combustible floor or on the ground well away from all combustible materials pending final disposal If the ashes are to be disposed of by burial in soil or other wise locally dispersed they should be retained in the closed container until all cinders have thoroughly cooled SOFTWOOD VS HARDWOOD Softwoods contain about 15 percent highly flammable resin which generates creosote soot in the chimney flue Burning softwood exclu sively may not be as desirable nor as safe as burning denser hardwoods Many experienced fire builders use small amounts of softwood
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