Showing results 1 - 19 of 19
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Air seal around kitchen and bathroom exhaust fans to keep conditioned air from leaking into unconditioned space.
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Right - This ceiling-mounted mini whole-house fan has built-in insulated covers to reduce heat loss when the fan is not in use
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Right – Fan with a cleanly cut and properly sized hole has been air sealed to drywall
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Right – The exhaust fan duct is sealed to the fan with mastic and the fan opening is covered with cardboard to keep out dust during construction.
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The polyethylene ceiling vapor barrier is sealed to form an air barrier around the exhaust fan in this very cold climate location (≥ CZ 6).
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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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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 – Whole house fan installed with holes in surrounding platform that need to be air sealed
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