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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. Keep Cool and Save Energy With These Top-Rated Solar-Powered Fans

    www.aol.com/lifestyle/keep-cool-save-energy-top...

    Solar-powered fans harness the sun's power to provide a cool breeze on hot days. Check out these editor-approved picks. Keep Cool and Save Energy With These Top-Rated Solar-Powered Fans

  4. Fan (machine) - Wikipedia

    en.wikipedia.org/wiki/Fan_(machine)

    Electric fans used for ventilation may be powered by solar panels instead of mains current. This is an attractive option because once the capital costs of the solar panel have been covered, the resulting electricity is free. If ventilation needs are greatest during sunny weather, a solar-powered fan can be suitable.

  5. Whole-house fan - Wikipedia

    en.wikipedia.org/wiki/Whole-house_fan

    A typical whole-house fan, with louvers closed when not operating. A whole house fan is a type of fan, commonly venting into a building's attic, designed to circulate air in an entire house or other building. The fan removes hot air from the building and draws in cooler outdoor air through windows and other openings.

  6. Passive solar building design - Wikipedia

    en.wikipedia.org/wiki/Passive_solar_building_design

    Distribution of heat to the building can be accomplished through ceiling and floor level vents, windows, doors, or fans. In a common design, thermal mass wall situated on the back of the sunspace adjacent to the living space will function like an indirect-gain thermal mass wall. Solar energy entering the sunspace is retained in the thermal mass.

  7. Solar air heat - Wikipedia

    en.wikipedia.org/wiki/Solar_Air_Heat

    Unglazed air collectors heat ambient (outside) air instead of recirculated building air. Transpired solar collectors are usually wall-mounted to capture the lower sun angle in the winter heating months as well as sun reflection off the snow and achieve their optimum performance and return on investment when operating at flow rates of between 4 and 8 CFM per square foot (72 to 144 m3/h.m2) of ...

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