{"product_id":"ken-brown-20-in-shutter-exhaust-fan-high-flow-ventilation","title":"KEN BROWN 20 in Shutter Exhaust Fan - High Flow Ventilation","description":"\u003cp\u003eIn this review the KEN BROWN 20 in Shutter Exhaust Fan is judged as a practical, heavy duty ventilation option for workshops, garages, attics and greenhouses where strong airflow and simple installation matter most. The single biggest reason to buy is its high airflow capacity paired with a plug-and-play setup: the preinstalled 1.65 m power cord and automatic aluminum shutters make it quick to mount and start moving air without electrical work. For anyone needing to remove heat, dust or humidity from medium to large spaces, this fan delivers dependable performance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultipurpose design:\u003c\/strong\u003e Works equally well in attics, workshops, greenhouses and barns to expel heat, moisture and odors from enclosed spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh airflow:\u003c\/strong\u003e Rated at approximately 3500 CFM, it provides strong ventilation to cool and exchange air in large volumes quickly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion resistant construction:\u003c\/strong\u003e Aluminum shutters and blades resist moisture and high temperature, extending service life in damp or hot environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic aluminum shutters:\u003c\/strong\u003e Gravity-operated shutters open when the fan runs and close when off to limit backdrafts and debris entry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-use convenience:\u003c\/strong\u003e A 1.65 m power cord is preinstalled so installation requires mounting only, not hard wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial-grade motor:\u003c\/strong\u003e Runs at about 120 V, 60 Hz with robust RPM for continuous operation in commercial or agricultural settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis fan is best for homeowners and tradespeople who need a straightforward way to ventilate garages, workshops, small factories or greenhouses without running new wiring. Its strong airflow and corrosion resistant aluminum parts suit spaces that build up heat, fumes or moisture.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for those needing whisper-quiet residential fans for living rooms or bedrooms, or for installations that demand integrated smart controls; this model focuses on raw airflow and durability rather than low-noise luxury features.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery good air movement for the size, making it effective at cooling work areas and venting heat.\u003c\/li\u003e\n\u003cli\u003eDurable aluminum shutters and blades reduce corrosion risk in moist or hot settings.\u003c\/li\u003e\n\u003cli\u003eEasy installation with a preinstalled 1.65 m power cord - no wiring required for most users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMotor can run hot during heavy use, so continuous-duty environments should monitor temperature and duty cycle.\u003c\/li\u003e\n\u003cli\u003eNot optimized for noise-sensitive living spaces; it is designed as a worksite-grade exhaust fan.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e20 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow\u003c\/td\u003e\n\u003ctd\u003eApprox. 3500 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower cord\u003c\/td\u003e\n\u003ctd\u003e1.65 m (5.4 ft) preinstalled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eAluminum shutters and blades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage \/ Frequency\u003c\/td\u003e\n\u003ctd\u003e120 V, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed\u003c\/td\u003e\n\u003ctd\u003eAbout 1309 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KEN BROWN 20 in Shutter Exhaust Fan is a practical, value-focused choice for garages, workshops and agricultural buildings where high airflow and durability are priorities. It offers strong ventilation, corrosion-resistant components and quick plug-and-play setup, making it a sensible buy for users who need reliable air movement rather than refined residential aesthetics.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fan require wiring?\u003c\/strong\u003e\u003cbr\u003eNo, the fan comes with a preinstalled 1.65 m power cord so most installs need only mounting and a nearby outlet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in damp environments?\u003c\/strong\u003e\u003cbr\u003eYes, the aluminum shutters and blades are corrosion resistant and suitable for moist or warm spaces like greenhouses and barns.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it quiet enough for home living areas?\u003c\/strong\u003e\u003cbr\u003eIt is designed as an industrial\/work fan with strong airflow, so it may be louder than fans intended for bedrooms or living rooms.\u003c\/p\u003e","brand":"KEN BROWN","offers":[{"title":"Default Title","offer_id":48246730588379,"sku":"B0BK134B67","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71fz2mnxs1L._AC_SL1500.jpg?v=1770964888","url":"https:\/\/gearmusthave.com\/products\/ken-brown-20-in-shutter-exhaust-fan-high-flow-ventilation","provider":"GearMustHave","version":"1.0","type":"link"}