{"id":57344,"date":"2014-11-12T09:57:25","date_gmt":"2014-11-12T09:57:25","guid":{"rendered":"http:\/\/leedpoints.com\/?guid=ce5453815be316abcd42b6013b3601ec"},"modified":"2014-11-12T09:57:25","modified_gmt":"2014-11-12T09:57:25","slug":"calculating-heating-degree-days","status":"publish","type":"post","link":"https:\/\/leedpoints.com\/green-building-blog\/calculating-heating-degree-days\/","title":{"rendered":"Calculating Heating Degree Days"},"content":{"rendered":null,"protected":false},"excerpt":{"rendered":"<div>\n<div>Subtitle:&nbsp;<\/div>\n<div>\n<div>\n                    A lot of people know the number of HDD for their location &mdash; but where does that number come from?        <\/div>\n<\/p><\/div>\n<\/div>\n<div>\n<div>Images:&nbsp;<\/div>\n<div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/calculating-heating-degree-days\"><img decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/thermometer-heating-degree-days.jpg\" alt=\"\" title=\"Thermometer\"><\/a>        <\/div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/calculating-heating-degree-days\"><img decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/heat-flow-equation-conduction.png\" alt=\"\" title=\"Eq. 1: Rate of heat flow\"><\/a>        <\/div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/calculating-heating-degree-days\"><img decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/heat-flow-equation-conduction-heating-temperature-time.png\" alt=\"\" title=\"Eq. 2: Quantity of heat flow\"><\/a>        <\/div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/calculating-heating-degree-days\"><img decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/heat-flow-equation-conduction-heating-heating-degree-days.png\" alt=\"\" title=\"Eq. 3: Quantity of heat flow using heating degree days\"><\/a>        <\/div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/calculating-heating-degree-days\"><img decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/heating-degree-days-graph-atlanta-2007-13.png\" alt=\"\" title=\"Heating degree days for Atlanta\"><\/a>        <\/div>\n<\/p><\/div>\n<\/div>\n<p>Let&#8217;s say you did some work on your home to make it more energy-efficient: air sealing, more attic insulation, and a duct system retrofit. You&#8217;ve got your energy bills for 12 months before and 12 months after you did the work, and now you want to see how much energy you saved. So you sit down with all 24 months worth of utility bills, <a href=\"http:\/\/www.energyvanguard.com\/blog-building-science-HERS-BPI\/bid\/20376\/What-s-Your-Number\" title=\"convert everything to a common unit\">convert everything to a common unit<\/a> if you use more than one type of fuel, and take a look at the numbers.<\/p>\n<p><a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/calculating-heating-degree-days\" target=\"_blank\">read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[12854,12855,12058,12856,12424],"class_list":["post-57344","post","type-post","status-publish","format-standard","hentry","category-green-building-posts","tag-degree-days","tag-hdd","tag-heat-flow","tag-heating-degree-days","tag-temperature"],"_links":{"self":[{"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/posts\/57344","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/comments?post=57344"}],"version-history":[{"count":0,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/posts\/57344\/revisions"}],"wp:attachment":[{"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/media?parent=57344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/categories?post=57344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/tags?post=57344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}