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Case Study:

DOE ZERH HIA 2017 Case Study: Thrive Home Builders, Courtyard Rows, Lone Tree, CO

Case Study:

DOE ZERH HIA 2017 Case Study: Thrive Home Builders, Lowry Plan, Denver, CO

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Door sweeps, which provide a robust barrier at the bottom of doors, come in a variety of shapes and sizes.

Door sweeps, which provide a robust barrier at the bottom of doors, come in a variety of shapes and sizes.
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Double fan window units can have multiple operational modes; most often outdoor air will be brought in at night when outdoor conditions are cooler

Double fan window units can have multiple operational modes; most often outdoor air will be brought in at night when outdoor conditions are cooler
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Draft stopping and air barrier at tub enclosure − plan view

Draft stopping and air barrier at tub enclosure − plan view
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Draft stopping and air barrier at tub enclosure − side view

Draft stopping and air barrier at tub enclosure − side view
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Drywall is installed before framing in dropped soffits to provide an air barrier above these duct chases.

Drywall is installed before framing in dropped soffits to provide an air barrier above these duct chases.
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Ducted whole-house fans should be installed with the duct curved and the fan suspended from rafters to reduce noise and vibration transmission to the living area.

Ducted whole-house fans should be installed with the duct curved and the fan suspended from rafters to reduce noise and vibration transmission to the living area.
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Ductless Heat Pump Outside Compressor

Ductless Heat Pump Outside Compressor
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Ductless heat pump’s digitally controlled inverter compressor

Ductless heat pump’s digitally controlled inverter compressor
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Ductless indoor units like this one are controlled individually by handheld remote controllers.

Ductless indoor units like this one are controlled individually by handheld remote controllers.
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Ductwork located in a vented attic is subject to high attic temperatures and significant heat gain through the walls of the ducts

Ductwork located in a vented attic is subject to high attic temperatures and significant heat gain through the walls of the ducts
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Earth tubes buried in the ground can provide pre-cooling of ventilation air or primary cooling if designed deep and long enough

Earth tubes buried in the ground can provide pre-cooling of ventilation air or primary cooling if designed deep and long enough
Presentation:

Effect of Occupant Behavior and Air Conditioner Controls on Humidity in Typical and Low-Load Homes

Effect of Occupant Behavior and Air Conditioner Controls on Humidity in Typical and Low-Load Homes
Video:

Energy 101 Video: Geothermal Heat Pumps

Video:

Energy 101: Cool Roofs

Video:

Energy 101: Geothermal Heat Pumps

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ENERGY STAR-rated ceiling fans and openable windows oriented to prevailing summer breezes help provide low-cost cooling.

ENERGY STAR-rated ceiling fans and openable windows oriented to prevailing summer breezes help provide low-cost cooling.
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Evaporative Cooler Sizing in ACH based on wet-bulb temperatures at 1% summer design conditions

Evaporative Cooler Sizing in ACH based on wet-bulb temperatures at 1% summer design conditions
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Evaporative coolers use a fan to draw outside air through a wetted pad which cools and humidifies it

Evaporative coolers use a fan to draw outside air through a wetted pad which cools and humidifies it
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Evaporative cooling is most appropriate in areas where the summer design mean coincident wet bulb temperature is less than 70°F, shown in purple here and labeled as region “A”

Evaporative cooling is most appropriate in areas where the summer design mean coincident wet bulb temperature is less than 70°F, shown in purple here and labeled as region “A”
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Even when wind is blowing parallel to a wall, an open casement window can create a zone of higher pressure near the window opening, driving airflow into the house

Even when wind is blowing parallel to a wall, an open casement window can create a zone of higher pressure near the window opening, driving airflow into the house
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Example expanded performance table from a 1.5-ton air conditioner

Example expanded performance table from a 1.5-ton air conditioner
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Example of a cool roof, painted white to reflect solar heat gain.

Example of a cool roof, painted white to reflect solar heat gain.