Showing results 101 - 130 of 130
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Whole house fans draw cool night-time air in through open windows and expel hot house air into the vented attic
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Whole-house fans draw outside air through windows into the home and exhaust it into a vented attic
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Without an exhaust fan ducted to the exterior, particles resulting from cooking can accumulate on walls and ceilings, and will be present in the air where they can damage occupants' respiratory systems
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Wrong - Code requires a kitchen exhaust fan duct to be a smooth metal duct (galvanized steel, stainless steel, or copper) and to terminate outside, not in an attic or crawlspace.
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Wrong - Exhaust fans should not have tight bends in duct work, especially right next to the fan as this can block airflow
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Wrong - If this kitchen exhaust duct had been extended a few inches, at least one bend could have been eliminated.
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Wrong - Kitchen exhaust ducts are prohibited from terminating within 3 feet of an operable window or near gable vents.
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Wrong - Kitchen exhaust fans must be located directly over the stove top to be effective at capturing and removing cooking pollutants.
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Wrong - The IRC prohibits the use of flex duct for kitchen exhaust and only permits PVC duct for downdraft systems that meet specific exceptions; also, gaps at the ceiling have not been air sealed.
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Wrong - This kitchen exhaust duct uses flex duct, which is prohibited by code, and the duct’s 22-foot length and multiple bends will slow the movement of pollutants out of the home.
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Wrong – Exhaust fan ducts must be smooth metal ducts; flex duct is not permitted by the IRC.
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Wrong – Overly powerful kitchen exhaust fans can backdraft other combustion appliances in the home
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Wrong – Roughly cut hole that is larger than the fan, making it difficult to seal
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Wrong – Roughly cut hole that is larger than the fan, making it difficult to seal
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Wrong – The duct for this kitchen exhaust fan is made of flex duct instead of smooth metal duct and the duct is not properly supported.
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Wrong – The kitchen exhaust fan duct is attached to flex duct, which is prohibited by code.
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Wrong – The position of this exhaust fan does not allow the duct to route directly outside in as straight a path as possible.
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Wrong – This exhaust duct extends far beyond what is needed to reach the roof; a short, straight, smooth rigid metal duct is best for exhaust ducts and exhausting to the soffit vent would be preferable.
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Wrong – This kitchen exhaust fan is not located directly above the stove top so it will be ineffective at removing cooking pollutants and it terminates within 3 feet of an operable window, which is prohibited by code.
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Wrong – This kitchen exhaust is a recirculating model; kitchens should use exhaust fans that duct out through the roof to remove moisture and odors from the home
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Wrong – Whole house fan installed with holes in surrounding platform that need to be air sealed
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