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2. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   During winter months, for example, an air conditioning register can be closed to prevent cold air from being pulled from the room. This allows the hot air to mix more completely with the cold air in the room, improving the efficiency of the HVAC system. [7] (The return should be efficient enough to draw off the cooler air.) [10] [11]

3. Evaporative cooler - Wikipedia

   en.wikipedia.org/wiki/Evaporative_cooler

   An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles.

4. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   Evaporative cooling is possible in dry climates. Indirect coils use hot water or steam for heating, and chilled water or glycol for cooling (prime energy for heating and air conditioning is provided by central plant elsewhere in the building). Coils are typically manufactured from copper for the tubes, with copper or aluminum fins to aid heat ...

5. Fan coil unit - Wikipedia

   en.wikipedia.org/wiki/Fan_coil_unit

   These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

6. Ventilative cooling - Wikipedia

   en.wikipedia.org/wiki/Ventilative_cooling

   Passive cooling building components (convective components, evaporative components, phase change components) Actuators (chain, linear, rotary) Sensors (temperature, humidity, air flow, radiation, CO 2, rain, wind) Control strategies in ventilative cooling solutions have to control the magnitude and the direction, of air flows in space and time. [1]

7. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   In summer, ceiling fans and table/floor fans circulate air within a room for the purpose of reducing the perceived temperature by increasing evaporation of perspiration on the skin of the occupants. Because hot air rises, ceiling fans may be used to keep a room warmer in the winter by circulating the warm stratified air from the ceiling to the ...

8. How to cure chapped lips in winter weather - AOL

   www.aol.com/cure-chapped-lips-winter-weather...

   Here are the expert tips you need to heal dry and chapped lips in the cold winter months. Watch the video above to learn how to heal dry and chapped lips. Pet safety: ...

9. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...