{"product_id":"tjernlund-products-ef-10","title":"Tjernlund Products EF-10 Duct Fan","description":"\u003cp\u003eThe \u003cstrong\u003eTjernlund EF-10 Duct Fan\u003c\/strong\u003e is an industrial-grade \u003cstrong\u003eaxial duct booster\u003c\/strong\u003e engineered to increase airflow in problematic 10-inch branch ducts. Built for professional HVAC applications, this \u003cstrong\u003ein-line duct fan\u003c\/strong\u003e features a 24-gauge \u003cstrong\u003egalvanized steel housing\u003c\/strong\u003e with ribbed duct stops and crimped ends for a secure fit in both \u003cstrong\u003eflexible and rigid metal ducting\u003c\/strong\u003e. Powered by a 1500 RPM shaded pole motor, it delivers a reliable \u003cstrong\u003e475 CFM airflow\u003c\/strong\u003e at 0.00\" SP to resolve temperature imbalances in residential or commercial zones.\u003c\/p\u003e\n\n\u003cp\u003eFor precision system integration, the EF-10 is fully compatible with the \u003cstrong\u003eSC-1 speed controller\u003c\/strong\u003e and can be automated using the \u003cstrong\u003ePS1503 duct airstat\u003c\/strong\u003e to cycle with the primary air handler. The assembly includes an external junction box to streamline hardwiring. Designed for durability, the \u003cstrong\u003ehigh-velocity duct booster\u003c\/strong\u003e handles air temperatures up to 150°F, making it suitable for both ambient supply and general exhaust runs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eDelivers \u003cstrong\u003e475 CFM airflow\u003c\/strong\u003e to eliminate hot or cold spots in long branch runs.\u003c\/li\u003e\n    \u003cli\u003eHeavy-duty 24-gauge \u003cstrong\u003egalvanized steel construction\u003c\/strong\u003e ensures structural integrity under pressure.\u003c\/li\u003e\n    \u003cli\u003eEngineered for versatile mounting in both \u003cstrong\u003e10-inch flex and metal ducts\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSpeed controllable\u003c\/strong\u003e motor allows for fine-tuning of air delivery and acoustics.\u003c\/li\u003e\n    \u003cli\u003eRated for maximum inlet temperatures of 150°F for reliable HVAC performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I automate the Tjernlund EF-10 to turn on with my furnace?\u003c\/strong\u003e\u003cbr\u003e\nContractors typically wire the EF-10 in parallel with the furnace blower (120 VAC) or install a pressure-sensing switch like the Tjernlund PS1503 to activate the fan only when airflow is detected.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this fan be used in main trunk lines?\u003c\/strong\u003e\u003cbr\u003e\nThe EF-10 is optimized for branch ducts. For main supply lines or \"trunk lines,\" larger models like the EF-12 or EF-14 are recommended to maintain sufficient static pressure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the motor reversible for intake and exhaust?\u003c\/strong\u003e\u003cbr\u003e\nWhile the motor direction is fixed, the unit is bi-directional based on installation orientation; simply flip the housing to switch between supply and exhaust configurations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Tjernlund Products","offers":[{"title":"Default Title","offer_id":43465315057842,"sku":"EF-10","price":211.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_a034f09d-e46e-4a6b-911c-94b096fdacc8.png?v=1701818250","url":"https:\/\/www.gsistore.com\/products\/tjernlund-products-ef-10","provider":"GSIstore","version":"1.0","type":"link"}