{"id":817,"date":"2022-01-10T14:32:18","date_gmt":"2022-01-10T14:32:18","guid":{"rendered":"https:\/\/theyardable.com\/?p=817"},"modified":"2022-01-19T11:02:56","modified_gmt":"2022-01-19T11:02:56","slug":"firewood-weight-btu-chart","status":"publish","type":"post","link":"https:\/\/theyardable.com\/firewood-weight-btu-chart\/","title":{"rendered":"Firewood Weight and BTU Chart (160+ Trees)"},"content":{"rendered":"\n<ul><li>MC- Moisture content<\/li><li>BTU- British Thermal Unit<\/li><\/ul>\n\n\n<div id=\"footable_parent_828\"\n         class=\" footable_parent ninja_table_wrapper loading_ninja_table wp_table_data_press_parent semantic_ui \">\n                <table data-ninja_table_instance=\"ninja_table_instance_0\" data-footable_id=\"828\" data-filter-delay=\"1000\" aria-label=\"new2\"            id=\"footable_828\"\n           data-unique_identifier=\"ninja_table_unique_id_972537882_828\"\n           class=\" foo-table ninja_footable foo_table_828 ninja_table_unique_id_972537882_828 ui table  nt_type_legacy_table selectable striped vertical_centered  footable-paging-right\">\n                <colgroup>\n                            <col class=\"ninja_column_0 \">\n                            <col class=\"ninja_column_1 \">\n                            <col class=\"ninja_column_2 \">\n                            <col class=\"ninja_column_3 \">\n                            <col class=\"ninja_column_4 \">\n                            <col class=\"ninja_column_5 \">\n                            <col class=\"ninja_column_6 \">\n                            <col class=\"ninja_column_7 \">\n                            <col class=\"ninja_column_8 \">\n                    <\/colgroup>\n        <thead>\n<tr class=\"footable-header\">\n                                                                                                                                                        <th scope=\"col\"  class=\"ninja_column_0 ninja_clmn_nm_commonname \">Common Name<\/th><th scope=\"col\"  class=\"ninja_column_1 ninja_clmn_nm_ft3lbs \">ft3\/lbs<\/th><th scope=\"col\"  class=\"ninja_column_2 ninja_clmn_nm_ft3lbsmc2 \">ft3\/lbs, MC 20%<\/th><th scope=\"col\"  class=\"ninja_column_3 ninja_clmn_nm_1cordofstackedgreenwoodlbs \">1 cord of stacked green wood (lbs)<\/th><th scope=\"col\"  class=\"ninja_column_4 ninja_clmn_nm_1cordstackedwoodmc2lbs \">1 cord stacked wood MC 20% (lbs)<\/th><th scope=\"col\"  class=\"ninja_column_5 ninja_clmn_nm_12cordstackedfirewoodmc2lbs \">1\/2 cord stacked firewood MC 20% (lbs)<\/th><th scope=\"col\"  class=\"ninja_column_6 ninja_clmn_nm_14cordstackedwoodmc2lbs \">1\/4 cord stacked wood MC 20% (lbs)<\/th><th scope=\"col\"  class=\"ninja_column_7 ninja_clmn_nm_btuspercordmc2 \">BTUs per cord MC 20%<\/th><th scope=\"col\"  class=\"ninja_column_8 ninja_clmn_nm_btuspercord7fireplaceefficencymc2 \">BTUs per cord 70% fireplace efficency & MC 20%<\/th><\/tr>\n<\/thead>\n<tbody>\n\n<\/tbody><!--ninja_tobody_rendering_done-->\n    <\/table>\n                    <style type=\"text\/css\" id='ninja_table_custom_css_828'>\n                        #footable_828  {\n    font-family: ;\n    font-size: px;\n    }\n\n\n#footable_parent_828 table.ninja_table_pro > tbody > tr > td {\r\n  font-size: 12px;\r\n  \/* Write More css properties if you want *\/\r\n}\r\n#footable_parent_828 table.ninja_table_pro > thead > tr > th {\r\n  font-size: 12px;\r\n  font-weight: bold;\r\n \/* Write More css properties if you want *\/\r\n}                <\/style>\n                \n    \n    \n<\/div>\n\n\n\n\n<p>Please note that the table describes the average volume of one net cord&#8217;s weight, which in this <strong>case is 85<em> ft<sup>3<\/sup><\/em> (a stacked cord of wood)<\/strong><\/p>\n\n\n\n<p>Calculating the correct number of BTUs for each tree is a tricky process because each tree produces a slightly different amount of heat due to sap and resin content.<\/p>\n\n\n\n<p>However, the amount of heat generated per pound of firewood is very similar. In ideal conditions one pound of wood, with 0% moisture content can produce 8600 to 9000 BTUs per pound depending on the resing content. Wood with higher resin burns slightly hotter.<\/p>\n\n\n\n<p>Furthermore, the combustion process itself can reduce the amount of potential BTU amount about 6%. If we take that into account, we will get two numbers:<\/p>\n\n\n\n<p>8084 BTUs per pound for non-resinous woods<\/p>\n\n\n\n<p>8460 BTUs per pound for high resinous woods<\/p>\n\n\n\n<p>Since we are doing calculations on bulk to get a general ballpark, let\u2019s take an average of that number, which would be<strong> 8272<\/strong><\/p>\n\n\n\n<p>Now all that\u2019s left to do is to calculate how the moisture content inside the wood affects its efficiency.<\/p>\n\n\n\n<p>The results are as follows:<\/p>\n\n\n\n<p><strong>At 65% Moisture content the wood would output BTUs 5013 per pound<\/strong><\/p>\n\n\n\n<p><strong>At 20% moisture content, the average heat output would be 6893 BTUs per pound<\/strong>. <\/p>\n\n\n\n<p>Another factor that affects the heat output of the wood is the efficiency of your fireplace. For example, if your fireplace efficiency rating is at 70% it will reduce the amount of BTUs received by 30%.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Elaborating on BTU and Net Cord<\/h2>\n\n\n\n<p>BTU &#8211; this unit of measurement is most commonly used for evaluating the thermal output of timber. 1 BTU is the amount of energy it takes to heat 1 lb of water by 1 F. <strong>Cord of firewood measures 4x4x8 ft equaling 128 cubic feet in dimensions. <\/strong><\/p>\n\n\n\n<p>However, the net cord is the actual amount of wood in a cord. It is calculated by subtracting the bark and air space from the cord of wood. Usually, in one cord of stacked <a href=\"https:\/\/theyardable.com\/firewood\/\" target=\"_blank\" rel=\"noreferrer noopener\">firewood<\/a>, around 75 to 100 cubic feet of is the actual amount of wood, or &#8216;net cord&#8217;<\/p>\n\n\n\n<p>To elaborate more, 1 BTU is the amount of energy that is released when lighting a match. In contrast, 1 Million BTU is equal to the energy generated by 179 gallons of oil or 7,283 kW of electricity. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>MC- Moisture content BTU- British Thermal Unit Please note that the table describes the average volume of one net cord&#8217;s weight, which in this case is 85 ft3 (a stacked cord of wood) Calculating the correct number of BTUs for each tree is a tricky process because each tree produces a slightly different amount of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":819,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[9],"tags":[],"_links":{"self":[{"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/posts\/817"}],"collection":[{"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/comments?post=817"}],"version-history":[{"count":13,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/posts\/817\/revisions"}],"predecessor-version":[{"id":954,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/posts\/817\/revisions\/954"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/media\/819"}],"wp:attachment":[{"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/media?parent=817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/categories?post=817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/theyardable.com\/wp-json\/wp\/v2\/tags?post=817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}