[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-431682-105":59,"doc-detail-431682-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","chimney-and-stove-cleaning","Chimney and Stove Cleaning","","Chimney and stove cleaning guidance explains why stoves and chimneys must be maintained: incomplete wood combustion produces unburned gases and vapors that condense into creosote or, for coal use, coal tar. The document details how creosote changes under heat, why chimney fires endanger buildings, and how hazards like sudden oxygen-fed flare-ups and structural cracking worsen risk. It also covers efficiency losses from soot and creosote insulation and provides inspection cues for determining when cleaning is needed.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/chimney-and-stove-cleaning/431682/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/chimney-and-stove-cleaning/431682.png","ImageObject",300,407,{"name":92,"@type":93},"eBook King","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-05","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",13,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"Why do stoves and chimneys require cleaning?","Question",{"text":113,"@type":114},"Wood combustion is never complete, so wood smoke contains unburned gases and vapors that condense into creosote on cooler surfaces. This accumulation reduces heating value and increases fire risk, and coal use deposits coal tar that also requires periodic cleaning.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What makes chimney fires dangerous beyond burning creosote?",{"text":118,"@type":114},"A chimney fire can cause stovepipe to glow intensely, burn through metal if prolonged, and launch burning debris from the top. Creosote acidity plus water condensation can damage steel and mortar, while sudden flare-ups can repeat rapidly and violently.",{"name":120,"@type":111,"acceptedAnswer":121},"How does cleaning affect heating efficiency and everyday use?",{"text":122,"@type":114},"Soot and creosote act as excellent insulators, reducing the amount of heat transferred and lowering heating efficiency. Cleaning also improves flue flow, helping prevent smoking, easing loading, and reducing backdrafting when the flue is partially blocked.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},431682,1790695625,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},962088006270,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","# Chimney&Stove \n\nCleaning  \nGarden Way Bulletin A-14  \nThe authors are professional chimney sweepsresiding in Stowe,VT.  \nAll rights reserved—no part of this bulletin may be reproducedin any form without permission in writing from the publisher,except by a reviewer who wishes to quote brief passages in con-nection with a review written for inclusion in a magazine ornewspaper.  \nCOPYRIGHT 1977 BYGARDEN WAY ASSOCIATES,INC.  \nPrinted in the United States  \n# CHIMNEY AND STOVE CLEANING\n\nDonald Post  \nStove and chimney cleaning traditionally have been thoughtof as despicable tasks relegated to those unfortunate individ-uals doomed to the role of chimney sweep.However,almostanyone who has a stove and chimney can clean them,using a  \nlittle elbow grease,and a lot of soap.Slightlysoiled hands are,after all,a small price to pay inreturn for the millions of BTUs your stove hasprovided you,so take heart,and when yourhands are black...smile.  \nMany people wonder why a stove ever needscleaning,so before we get to the HOW,let's lookat the WHY.When wood burns,its combustionis never complete.Wood smoke inevitably con-tains unburned gases and vapors which condenseon contact with any surface whose temperatureis below their dew point.This occurs when a coldstove is being fired or when smoke contacts the  \nChanged by Heat  \nRaw creosote condenses from flue gas as a liquid.It soondries to a shiny,hard coating.Creosote in this form is flam-mable,but does not cause chimney fires.Chimney fires usu-ally start after creosote has been pyrolyzed,or changed chemi-cally by heat to form a soft,black,crusty deposit on the insideof the chimney.If coal is burned in the stove,creosote willnot form,but a flammable substance,coal tar,is depositedin the stack.Periodic cleanings are required.  \nWhen a chimney fire occurs,the building is jeopardized inseveral ways:stovepipe can glow cherry red,threatening any-thing that will burn,especially flammable materials near wherethe pipe penetrates the ceiling or roof.Burning debris canshoot out of the top of the chimney,landing on the roof ornearby bushes.  \nThe metal walls of the stovepipe can burn through if thefire is prolonged or intense,especially f there is excessivecorrosion.Creosote is acidic,and if combined with waterattacks steel and mortar.Condensation of water can beavoided if a stack temperature of at least 150°F.is maintained.  \n## Another Hazard\n\nA less obvious but equally insidious hazard is presented by thechimney fire that ignites suddenly,consumes all the availableoxygen almost instantly and extinguishes itself,allowing oxy-gen to rush in and be ignited by glowing creosote.This on/offcycle is repeated two or three times a second,resulting in aviolent vibration in the stovepipe which may shake itself loose,showering the bewildered inhabitants with red hot steel andflaming creosote.  \nChimney fires in prefabricated chimneys such as the Metal-bestos brand may warp or burn on the inside with no signs ofdamage on the outside.  \nCeramic and masonry flue liners are susceptible to cracking  \n2  \nand buckling due to thermal expansion.Old chimneys may nothave tile flue liners and must be given more care than linedchimneys since they often develop cracks and holes as themasonry ages.  \n## Settle and Crack\n\nMasonry chimneys are heavy by nature,and some settling isinevitable.Many times cracks will result from settling.Chim-ney fires in old chimneys are particularly dangerous becauseof these holes as well as their method of construction,whichinvolved single brick walls,sometimes even single bricks laidedgewise.Cracks and holes can allow sparks and embers toignite dry,aged wood adjacent to the chimney.Thin walls ofolder chimneys can transmit the intense heat of a chimney fireto combustibles outside the chimney.  \nIf holes and cracks in an old chimney cannot be repairedsatisfactorily,it may be possible to install stovepipe inside thechimney.This is done by lowering stovepipe into the chimney,attaching section after sect","cbCaiuc6OB1liZLI","https://ap.wps.com/l/cbCaiuc6OB1liZLI","pdf",2037451,32,"English","# Chimney and Stove Cleaning\n## Why Cleaning Is Needed\n## Another Hazard\n## Settle and Crack\n## Efficiency Reduced\n## Less Smoke","[{\"question\":\"Why do stoves and chimneys require cleaning?\",\"answer\":\"Wood combustion is never complete, so wood smoke contains unburned gases and vapors that condense into creosote on cooler surfaces. This accumulation reduces heating value and increases fire risk, and coal use deposits coal tar that also requires periodic cleaning.\"},{\"question\":\"What makes chimney fires dangerous beyond burning creosote?\",\"answer\":\"A chimney fire can cause stovepipe to glow intensely, burn through metal if prolonged, and launch burning debris from the top. Creosote acidity plus water condensation can damage steel and mortar, while sudden flare-ups can repeat rapidly and violently.\"},{\"question\":\"How does cleaning affect heating efficiency and everyday use?\",\"answer\":\"Soot and creosote act as excellent insulators, reducing the amount of heat transferred and lowering heating efficiency. Cleaning also improves flue flow, helping prevent smoking, easing loading, and reducing backdrafting when the flue is partially blocked.\"}]","Chimney and Stove Cleaning | PDF",1790656312,81]