{"id":38703,"date":"2022-12-12T12:00:22","date_gmt":"2022-12-12T17:00:22","guid":{"rendered":"https:\/\/roofvents.com\/uncategorized\/asf-18-c12-aura-solar-fan-18-inch-diameter-12-inch-collar"},"modified":"2022-12-12T15:40:34","modified_gmt":"2022-12-12T20:40:34","slug":"asf-18-c12-aura-solar-fan-18-inch-diameter-12-inch-collar","status":"publish","type":"product","link":"https:\/\/roofvents.com\/solar-attic-fans-aura-solar-fan\/asf-18-c12-aura-solar-fan-18-inch-diameter-12-inch-collar\/","title":{"rendered":"Aura Solar Attic Fan | CFM: 1740 18&Prime;&nbsp;Diameter 12&Prime;&nbsp;Tall&nbsp;Collar | Model ASF-18-C12"},"content":{"rendered":"<div id=\"model-description-ASF\">\n<h3>18 inch Aura Solar Attic Fan | Model ASF-18-C12 | 1,375 CFM<\/h3>\n<p>The <a href=\"https:\/\/roofvents.com\/solar-attic-fans-aura-solar-fan\/asf-18-c12-aura-solar-fan-18-inch-diameter-12-inch-collar\/\">18 inch Aura Solar Attic Fan<\/a> is 18 inches in diameter and has a 12 inch tall collar. The model ASF-18-C12 exhausts air out at <strong>1,740<\/strong><strong> CFM<\/strong>. All 18 inch solar gravity fans come with a standard 23\u2033 x 23\u2033 square flange.<\/p>\n<h4><strong>Benefits:<\/strong><\/h4>\n<ul>\n<li>Keeps your home comfortable and energy efficient<\/li>\n<li>Works passively with the wind when there is no sunlight<\/li>\n<li>Inner louvers prevent insects and animals from entering the vent<\/li>\n<li>Round aerodynamic design can withstand harsh weather<\/li>\n<\/ul>\n<h4><strong>Installation<\/strong>:<\/h4>\n<p>Exhaust fans with a collar height of 12 inches or greater are typically for low slope or flat roof ventilation. However, if installed less than 4 feet from the peak, this fan can go on a <a href=\"https:\/\/roofvents.com\/roof-pitch\/\">0\/12 to 5\/12 pitch roof<\/a>\u00a0in\u00a0<a href=\"https:\/\/roofvents.com\/exhaust-vent-clearance-for-all-climates\/\">climate zones 1-6.<\/a><\/p>\n<p>The Aura Solar Fan is ideal for ventilating steep slope roofs. It will remove heat during the summer and moisture during the winter to provide ventilation all year. Keeping the attic dry and cool during the winter will preserve attic insulation and prevent ice dams.<\/p>\n<p>18 inch diameter fans are considered a commercial size and therefore should be used in commercial settings. For those looking to ventilate their homes, please view roof vents with a smaller diameter.<\/p>\n<h4><strong>How it works<\/strong>:<\/h4>\n<p>The Aura Solar Fan uses both solar and wind to power the ventilator. Fan only works with solar power when in bright, direct sunlight on South facing roofs.<\/p>\n<p>However, it exhausts air continuously even without the sun. It works passively due to the Venturi Effect. When the wind blows against the outer louvers this creates a vortex of air within the head. As a result, creating an upward draft which allows air to flow out of the vent.<\/p>\n<p>The 1\/8 inch louvers prevent rain, snow, insects, and animals from entering inside the fan.<\/p>\n<p>For any questions please see the\u00a0<a href=\"https:\/\/roofvents.com\/frequently-asked-questions\/\">frequently asked questions page<\/a>. If you still have questions, email the sale<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>18 inch Aura Solar Attic Fan | Model ASF-18-C12 | 1,375 CFM The 18 inch Aura Solar Attic Fan is 18 inches in diameter and has a 12 inch tall collar. The model ASF-18-C12 exhausts air out at 1,740 CFM. All 18 inch solar gravity fans come with a standard 23\u2033 x 23\u2033 square flange. [&hellip;]<\/p>\n","protected":false},"featured_media":69923,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":""},"product_cat":[29],"product_tag":[],"diameter":[227],"height":[216],"product_line":[260],"nfa":[],"diameter_nfa_combo":[],"flange_type":[212],"attic_fan_cfm":[],"solar_fan_cfm":[268],"pipe_cap_type":[],"shingle_vent":[],"curb_height":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.6 (Yoast SEO v22.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>18 inch Solar Fan | 18 inch Diameter Aura Solar Attic Fan<\/title>\n<meta name=\"description\" content=\"The 18 inch diameter Aura Solar Attic Fan uses both solar and wind to power the ventilator. 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