{"id":13058,"date":"2013-05-29T10:01:44","date_gmt":"2013-05-29T10:01:44","guid":{"rendered":"http:\/\/leedpoints.com\/?guid=f83746e8e68745aa8724dda7d5b1d245"},"modified":"2013-05-29T10:01:44","modified_gmt":"2013-05-29T10:01:44","slug":"why-do-we-measure-air-conditioner-capacity-in-tons","status":"publish","type":"post","link":"https:\/\/leedpoints.com\/green-building-blog\/why-do-we-measure-air-conditioner-capacity-in-tons\/","title":{"rendered":"Why Do We Measure Air Conditioner Capacity in Tons?"},"content":{"rendered":null,"protected":false},"excerpt":{"rendered":"<div>\n<div>Subtitle:&nbsp;<\/div>\n<div>\n<div>\n                    Like modern air conditioning, the expression has a cold-climate origin        <\/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\/why-do-we-measure-air-conditioner-capacity-tons\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/hvac-air-conditioner-capacity-tons-ice-finland-gba.jpg\" alt=\"\" title=\"Ice\" width=\"144\" height=\"192\"><\/a>        <\/div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/why-do-we-measure-air-conditioner-capacity-tons\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/Minnesota-ice-harvest-from-Robert-N-Dennis-collection-of-stereoscopic-views-1200.jpg\" alt=\"\" title=\"Minnesota ice harvest\" width=\"144\" height=\"75\"><\/a>        <\/div>\n<div>\n                    <a href=\"http:\/\/www.greenbuildingadvisor.com\/blogs\/dept\/building-science\/why-do-we-measure-air-conditioner-capacity-tons\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.greenbuildingadvisor.com\/sites\/default\/files\/imagecache\/blog-river\/abraham-lincoln-internet-quotes-air-conditioner-tonnage.png\" alt=\"\" title=\"Abraham Lincoln quote on quotes\" width=\"144\" height=\"115\"><\/a>        <\/div>\n<\/p><\/div>\n<\/div>\n<p>A few years ago, a <span>HERS<\/span><span>Index or scoring system for energy efficiency established by the Residential Energy Services Network (RESNET) that compares a given home to a Home Energy Rating System (HERS) Reference Home based on the 2006 International Energy Conservation Code. A home matching the reference home has a HERS Index of 100. The lower a home&rsquo;s HERS Index, the more energy efficient it is. A typical existing home has a HERS Index of 130; a net zero energy home has a HERS Index of 0. Older versions of the HERS index were based on a scale that was largely just the opposite in structure&#8211;a HERS rating of 100 represented a net zero energy home, while the reference home had a score of 80. There are issues that complicate converting old to new or new to old scores, but the basic formula is: New HERS index = (100 &#8211; Old HERS score) * 5.<\/span> rater student in a class I taught told a funny story. He was an <span>HVAC<\/span><span>(Heating, ventilation, and air conditioning). Collectively, the mechanical systems that heat, ventilate, and cool a building.<\/span> contractor and said he was installing a new air conditioner for an elderly woman. As he was explaining things to her, he mentioned that they would be installing a 4-ton unit. &#8220;Oh, my,&#8221; she said. &#8220;How are you going to get something so big into my back yard?&#8221;<\/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":[2721,10200,830,10201,10202,10203],"class_list":["post-13058","post","type-post","status-publish","format-standard","hentry","category-green-building-posts","tag-air-conditioning","tag-cooling-capacity","tag-hvac","tag-ice","tag-space-coolig","tag-tons-of-cooling"],"_links":{"self":[{"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/posts\/13058","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=13058"}],"version-history":[{"count":0,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/posts\/13058\/revisions"}],"wp:attachment":[{"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/media?parent=13058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/categories?post=13058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leedpoints.com\/green-building-blog\/wp-json\/wp\/v2\/tags?post=13058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}