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2. Attic fan - Wikipedia

   en.wikipedia.org/wiki/Attic_fan

   An attic fan installed underneath a roof. A powered attic ventilator, or attic fan, is a ventilation fan that regulates the heat level of a building's attic by exhausting hot air. A thermostat is used to automatically turn the fan off and on, while sometimes a manual switch is used. An attic fan can be gable mounted or roof mounted. Additional ...

3. These Top-Rated Exhaust Fans Are Just What Your Musty ... - AOL

   www.aol.com/lifestyle/exhaust-fans-help-control...

   Exhaust fans keep fresh air circulating in your home. Say goodbye to steamy bathrooms, stuffy garages, or smoky kitchens with the best exhaust fans. These Top-Rated Exhaust Fans Are Just What Your ...

4. Whole-house fan - Wikipedia

   en.wikipedia.org/wiki/Whole-house_fan

   A whole house fan pulls air out of a building and forces it into the attic space or, in the case of homes without attics, through an opening in the roof or an outside wall. This forces air from the living areas into the attic and out through the gable and/or soffit vents, while at the same time drawing air from the outside into the living areas ...

5. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   Air handlers may need to provide hot air, cold air, or both to change the supply air temperature, and humidity level depending on the location and the application. Such conditioning is provided by heat exchanger coils within the air handling unit air stream, such coils may be direct or indirect in relation to the medium providing the heating or ...

6. Humidistat - Wikipedia

   en.wikipedia.org/wiki/Humidistat

   A humidistat or hygrostat is an electronic device analogous to a thermostat but which responds to relative humidity, not temperature. A typical humidistat is usually included with portable humidifiers or dehumidifiers. It can also be included with combined air cleaner or humidifier units to control a home's humidity level or any other indoor ...

7. Underfloor air distribution - Wikipedia

   en.wikipedia.org/wiki/Underfloor_air_distribution

   The energy assessment of UFAD systems has not been extensive, but some studies indicates potential energy savings due the lower pressure drop and lower air flow rate. Typical plenum pressures are 25 pascals (0.0036 psi) (0.1 inch of water column) or less. [8]