{"id":38891,"date":"2022-11-21T12:00:22","date_gmt":"2022-11-21T17:00:22","guid":{"rendered":"https:\/\/roofvents.com\/uncategorized\/af-20-c06-cmf-aura-fan-20-inch-diameter-6-inch-collar-curb-mount-flange"},"modified":"2022-11-21T14:47:11","modified_gmt":"2022-11-21T19:47:11","slug":"af-20-c6-cmf-aura-fan-20-inch-diameter-6-inch-collar-curb-mount-flange","status":"publish","type":"product","link":"https:\/\/roofvents.com\/roof-exhaust-fans-aura-fan-curb-mount-flange\/af-20-c6-cmf-aura-fan-20-inch-diameter-6-inch-collar-curb-mount-flange\/","title":{"rendered":"Aura Roof Exhaust Fan with Curb Mount Flange | CFM: 3300 20&Prime;&nbsp;Diameter 6&Prime;&nbsp;Tall&nbsp;Collar | Model AF-20-C6-CMF"},"content":{"rendered":"<h3>20 Inch Aura Attic Fan with Curb Mount Flange | AF-20-C6-CMF | 3,300 CFM<\/h3>\n<p>The <a href=\"https:\/\/roofvents.com\/roof-exhaust-fans-aura-fan-curb-mount-flange\/af-20-c6-cmf-aura-fan-20-inch-diameter-6-inch-collar-curb-mount-flange\/\">20 inch Aura Attic Fan with Curb Mount Flange<\/a> is 20 inches in diameter and has a 6 inch tall collar. The model number is AF-20-C6-CMF and exhausts air out at 3,300 CFM. All 20 inch gravity fans come with a standard 24 x 24 inch curb mount 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 the motor is off<\/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>: For low slope or <a href=\"https:\/\/roofvents.com\/Attic-Ventilation-Flat-Roof\">flat roof ventilation<\/a><\/h4>\n<p>The Aura Gravity Fan exhausts air continuously even when the motor is off. This attic fan works passively because of the Venturi Effect. Wind blows against the outer louvers creating an upward draft that allows air to freely flow out of the vent. This Attic Fan is also available with an optional Shut-Off Switch, Thermostat and Humidistat (THSOS).<\/p>\n<p>The curb mount flange allows for easy installation on <a href=\"https:\/\/roofvents.com\/roof-curbs-all\/\">roof curbs<\/a>. In addition, the curbed flange can be used as a hatch to access the ductwork below. We recommend installation on roofs with a pitch of 2\/12 or less.<\/p>\n<p>20 inch Aura Gravity Fans are compatible with AVP's <a href=\"https:\/\/roofvents.com\/roof-curbs\/roof-curb-fits-20-vent-or-fan-with-cmf-model-rc-20-h6\/\">6 inch tall<\/a>, <a href=\"https:\/\/roofvents.com\/roof-curbs\/roof-curb-fits-20-vent-or-fan-with-cmf-model-rc-20-h12\/\">12 inch tall<\/a>, and <a href=\"https:\/\/roofvents.com\/roof-curb-fits-20-inch-vent-or-fan-with-cmf-model-rc-20-h18\/\">18 inch tall roof curbs<\/a>.<\/p>\n<h4><strong>Motor Type:\u00a0 PSC \u2013 Open Ventilation<\/strong><\/h4>\n<p>With 3\/4 horsepower and 3,300 CFM, this 20 inch vent is perfect for ventilating large attic spaces or plenums.<\/p>\n<h4><strong>How it works<\/strong>:<\/h4>\n<p>Even when the motor is off, the attic fan will still ventilate passively. In other words, even the smallest breeze can create exhaust ventilation to draw air out of the fan.<\/p>\n<p>This movement of air is proportional to the wind speed and is measured in <u>cubic feet per minute (CFM)<\/u>. Therefore, wind speeds of 11 mph for a 20 inch attic fan produces 881 CFM of air exhaust for attic ventilation.<\/p>\n<p><span style=\"color: #666666; display: inline !important;\">For any questions please see the\u00a0<\/span><a style=\"background-color: #ffffff;\" href=\"https:\/\/roofvents.com\/frequently-asked-questions\/\">frequently asked questions page<\/a><span style=\"color: #666666; display: inline !important;\">. If you still have questions, email the sales team at\u00a0<\/span><a style=\"background-color: #ffffff;\" href=\"mailto:sales@roofvents.com\">sales@roofvents.com<\/a><span style=\"color: #666666; display: inline !important;\"> or call 845-565-7770<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The 20 inch Aura Attic Fan with Curb Mount Flange exhausts air continuously even when the motor is off | Exhausts air out at 3,300 CFM<\/p>\n","protected":false},"featured_media":40758,"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":[39],"product_tag":[],"diameter":[229],"height":[214],"product_line":[211],"nfa":[],"diameter_nfa_combo":[],"flange_type":[255],"attic_fan_cfm":[230],"solar_fan_cfm":[],"pipe_cap_type":[],"shingle_vent":[],"curb_height":[],"acf":[],"yoast_head":"<!-- This site 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