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Image:

Right – This exhaust fan duct is made of smooth rigid metal and the duct is mastic sealed at the joints.

Right – This exhaust fan duct is made of smooth rigid metal and the duct is mastic sealed at the joints.
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Right – This home’s kitchen exhaust fan motor is housed in a box above the ceiling.

Right – This home’s kitchen exhaust fan motor is housed in a box above the ceiling.
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Right – This kitchen exhaust duct is made of smooth rigid metal and the duct is mastic sealed at joints

Right – This kitchen exhaust duct is made of smooth rigid metal and the duct is mastic sealed at joints
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Right – This kitchen exhaust fan duct is made of smooth round steel duct that takes the shortest, most direct route to the outdoors and joints are sealed with mastic.

Right – This kitchen exhaust fan duct is made of smooth round steel duct that takes the shortest, most direct route to the outdoors and joints are sealed with mastic.
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Right – This kitchen exhaust fan has a damper to prevent outside air from entering when the fan is not operating

Right – This kitchen exhaust fan has a damper to prevent outside air from entering when the fan is not operating
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Right – This register is sealed for a final test and the duct test pressure is being monitored at the register

Right – This register is sealed for a final test and the duct test pressure is being monitored at the register
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Right – To minimize sound in the kitchen, the exhaust fan above the island-mounted stove top is located above the ceiling rather than just above the stovetop.

Right – To minimize sound in the kitchen, the exhaust fan above the island-mounted stove top is located above the ceiling rather than just above the stovetop.
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Scrape the debris from the sides of each fan blade on this bathroom exhaust fan.

Scrape the debris from the sides of each fan blade on this bathroom exhaust fan.
Image:

See the printing on the cardboard frame of the air filter for the filter dimensions and the arrow indicating airflow direction; the arrow should point into the duct.

See the printing on the cardboard frame of the air filter for the filter dimensions and the arrow indicating airflow direction; the arrow should point into the duct.
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Separate exhaust fans can share a common exhaust if each exhaust fan is equipped with a back-draft damper to prevent cross contamination

Separate exhaust fans can share a common exhaust if each exhaust fan is equipped with a back-draft damper to prevent cross contamination
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Seperate dwellings with their own seperate exhaust terminations

Seperate dwellings with their own seperate exhaust terminations
Presentation:

Stump the Building Chump – Joe Lstiburek

Stump the Building Chump – Joe Lstiburek
Case Study:

Technology Solutions Case Study: Combustion Safety for Appliances Using Indoor Air

Case Study:

Technology Solutions Case Study: Complete and Fully Aligned Air Barrier

Case Study:

Technology Solutions Case Study: Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier

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The air filter slot on this air handler has no cover.

The air filter slot on this air handler has no cover.
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The air filter slot on this furnace is covered with a magnetic seal.

The air filter slot on this furnace is covered with a magnetic seal.
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The back-draft damper on this exhaust fan is closed to prevent cross contamination

The back-draft damper on this exhaust fan is closed to prevent cross contamination
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The back-draft damper on this exhaust fan is open when the exhaust fan is operating

The back-draft damper on this exhaust fan is open when the exhaust fan is operating
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The back-draft damper open when the fan is actively exhausting and closes when the fan is off

The back-draft damper open when the fan is actively exhausting and closes when the fan is off
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The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the return side of the air handler for conditioning, mixing, and distribution

The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the return side of the air handler for conditioning, mixing, and distribution
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The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the supply side of the central air handler for mixing and distribution

The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the supply side of the central air handler for mixing and distribution
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The dehumidifier draws air from both a common area in the house and from outside, dehumidifies it, and adds it to the supply side of the air handler for distribution

The dehumidifier draws air from both a common area in the house and from outside, dehumidifies it, and adds it to the supply side of the air handler for distribution
Image:

The down draft range hood fan has filters located under the hood.

The down draft range hood fan has filters located under the hood.