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  2. These Editor-Tested Space Heaters Will Keep You Toasty All ...

    www.aol.com/lifestyle/best-space-heaters-warming...

    Best Overall: Lasko CW210 Bladeless Tower Space Heater. Best Value: Vornado MVH Vortex Heater. Best for Garages and Cabins: Mr. Heater F232000 MH9BX Space Heater. Best Budget: Andily FH105A Space ...

  3. Heating, ventilation, and air conditioning - Wikipedia

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

    Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space. The control circuit in a household HVAC installation.

  4. Space heater - Wikipedia

    en.wikipedia.org/wiki/Space_heater

    Electric infrared space heater. A space heater is a device used to heat a single, small- to medium-sized area. [1] This type of heater can be contrasted with central heating, which distributes heat to multiple areas.

  5. Radiant heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Radiant_heating_and_cooling

    Radiant heating and cooling is a category of HVAC technologies that exchange heat by both convection and radiation with the environments they are designed to heat or cool. There are many subcategories of radiant heating and cooling, including: "radiant ceiling panels", [ 1 ] "embedded surface systems", [ 1 ] "thermally active building systems ...

  6. Do I need to worry about space heaters? Here’s what experts ...

    www.aol.com/lifestyle/worry-space-heaters...

    Space heaters are repeatedly linked with tragedies. Local fire departments responded to an estimated average of 44,210 home structure fires caused by heating equipment, including space heaters ...

  7. Variable air volume - Wikipedia

    en.wikipedia.org/wiki/Variable_air_volume

    In the cooling mode of operation, as the temperature in the space is satisfied, a VAV box closes to limit the flow of cool air into the space. As the temperature increases in the space, the box opens to bring the temperature back down. The fan maintains a constant static pressure in the discharge duct regardless of the position of the VAV box.