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  2. 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.

  3. United States building energy codes - Wikipedia

    en.wikipedia.org/wiki/United_States_building...

    Depiction of New York World Building fire in New York City in 1882. Building codes in the United States are a collection of regulations and laws adopted by state and local jurisdictions that set “minimum requirements for how structural systems, plumbing, heating, ventilation, and air conditioning (), natural gas systems and other aspects of residential and commercial buildings should be ...

  4. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    rooftop unit (RTU) A packaged unit that controls both heating and air conditioning. An air handler typically refers to a unit that provides a fan to support either heating or cooling. radiant ceiling panels Usually metal panels suspended under the ceiling, insulated from the building structure.

  5. In Texas, is it better to have a heat pump or an air ... - AOL

    www.aol.com/texas-better-heat-pump-air-163833761...

    Texas is the number one state with heat pumps installed in homes — 1.95 million residents use the system as both a furnace and air conditioning unit. Whereas an air conditioning unit’s only ...

  6. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

  7. Air handler - Wikipedia

    en.wikipedia.org/wiki/Air_handler

    An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. [1] An air handler is usually a large metal box containing a blower , furnace or A/C elements, filter racks or chambers, sound attenuators , and dampers . [ 2 ]

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