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A powered flow hood is used to measure outside air flowing into the inlet terminal of a whole-house ventilation system

A powered flow hood is used to measure outside air flowing into the inlet terminal of a whole-house ventilation system
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A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States

A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States
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A properly sized high-efficiency heat pump is located in conditioned space in a closet inside the home.

A properly sized high-efficiency heat pump is located in conditioned space in a closet inside the home.
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A reversible window fan can operate via thermostatic or remote control and can selectively exhaust air or bring in outdoor air

A reversible window fan can operate via thermostatic or remote control and can selectively exhaust air or bring in outdoor air
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A screened-in porch will protect windows from rain, provide shade, and allow more airflow through windows than window screens would

A screened-in porch will protect windows from rain, provide shade, and allow more airflow through windows than window screens would
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A shallow, open floor plan allows free flow of cross ventilation through the house

A shallow, open floor plan allows free flow of cross ventilation through the house
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A single ductless heat pump heats and cools the country’s first DOE Zero Energy Ready certified manufactured home.

A single ductless heat pump heats and cools the country’s first DOE Zero Energy Ready certified manufactured home.
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A small, single-zone cooling system such as this ductless mini-split heat pump can be a very effective way to provide emergency cooling with a low power draw on a backup power system.

A small, single-zone cooling system such as this ductless mini-split heat pump can be a very effective way to provide emergency cooling with a low power draw on a backup power system.
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A technician conducts a duct blaster test

A technician conducts a duct blaster test
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A variety of battery-powered fans can be used for a cool room without electric power; most charge off a USB charger so they can be solar charged

A variety of battery-powered fans can be used for a cool room without electric power; most charge off a USB charger so they can be solar charged
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A wall-mounted ductless air handler for a ductless heat pump system

A wall-mounted ductless air handler for a ductless heat pump system
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A water-source heat pump with a closed-loop in-pond piping system

A water-source heat pump with a closed-loop in-pond piping system
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After securing the inner coil, cover the draw band and the seam with a generous amount of mastic

After securing the inner coil, cover the draw band and the seam with a generous amount of mastic
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Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities

Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities
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Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions

Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions
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Air speeds generated by a typical ceiling fan are in the ideal range for providing occupant cooling without causing disruption

Air speeds generated by a typical ceiling fan are in the ideal range for providing occupant cooling without causing disruption
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Airflow can be directed across thermal mass in the ceiling, floor, or elsewhere inside the home through various window and louver configurations

Airflow can be directed across thermal mass in the ceiling, floor, or elsewhere inside the home through various window and louver configurations
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An energy recovery ventilator draws in fresh outside air that is filtered and circulated by the central air handler, while stale air from central returns is routed through the ERV to exchange heat before being exhausted outside.

An energy recovery ventilator draws in fresh outside air that is filtered and circulated by the central air handler, while stale air from central returns is routed through the ERV to exchange heat before being exhausted outside.
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An innovative U-shaped heat pump offers SEER 15 efficiency and operation with smart phones

An innovative U-shaped heat pump offers SEER 15 efficiency and operation with smart phones
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An oil-fired boiler with direct combustion air and exhaust venting

An oil-fired boiler with direct combustion air and exhaust venting
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Anemometers, including the vane style (lower) and hotwire style (upper) are used to measure air velocity to calculate airflow

Anemometers, including the vane style (lower) and hotwire style (upper) are used to measure air velocity to calculate airflow
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ASES March Webinar: Uncoupling Solar Light and Heat in Passive Solar Design

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Assembled section of fiber board duct

Assembled section of fiber board duct
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Average wet-bulb temperatures across the United States

Average wet-bulb temperatures across the United States