An Air Handler, or Air Handling Unit (often abbreviated to AHU), is a device used to condition and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. Usually, an air handler is a large metal box containing a blower, ... [Read full article]
Central Air Conditioning, commonly referred to as central air (U.S.) or air-con (UK), is an air conditioning system which uses ducts to distribute cooled and/or dehumidified air to more than one room, or uses pipes to distribute chilled water to heat... [Read full article]
Equipment that performs heat transfer when mounted inside an Air Handling unit or ductwork. It is heated or cooled by electrical means or by circulating liquid or steam within it. Air flowing across it is heated or cooled. [Read full article]
The Condensing Unit is the component of a central air conditioner that is designed to remove heat absorbed by the refrigerant and transfer it outside the conditioned space.
A condenser unit used in central air conditioning systems typically has a... [Read full article]
Energy Recovery Ventilation (ERV) is the process of exchanging the energy contained in normally exhausted building or space air and using it to treat the incoming outdoor ventilation air in residential and commercial HVAC systems. The benefit of usin... [Read full article]
A heat exchanger is a device built for efficient heat transfer from one medium to another, whether the media are separated by a solid wall so that they never mix, or the media are in direct contact. One common example of a heat exchanger is the radia... [Read full article]
A device that warms or cools a building by transferring heat from a relatively low-temperature reservoir to one at a higher temperature.
In heating, ventilation, and air conditioning (HVAC) applications, a heat pump normally refers to a vapor-compr... [Read full article]
Heat Recovery Ventilation (also known as a heat exchanger, air exchanger or air-to-air exchanger) is a ventilation system that employs a counter-flow heat exchanger between the inbound and outbound air flow. HRV provide fresh air and improved climate... [Read full article]
HVAC is an initialism or acronym that stands for "Heating, Ventilating, and Air Conditioning".
Heating
There are different types of standard heating systems. Central heating is often used in cold climates to heat private houses and public buildi... [Read full article]
The Inverter Technology tag found on some air conditioners signifies the ability of the unit to continuously regulate its thermal power flow by altering the speed of the compressor in response to cooling demand.
Traditional reverse-cycle air-cond... [Read full article]
Seasonal Energy Efficiency Rating (SEER) is most commonly used to measure the efficiency of a central air conditioner. The higher the SEER, the more efficient the system. SEER measures how efficiently a cooling system will operate over an entire seas... [Read full article]
Tankless Water Heaters, also called instantaneous, continuous flow, inline, flash, on-demand or instant-on water heaters, are also available and gaining in popularity. These water heaters instantly heat water as it flows through the device, and do no... [Read full article]
A Thermostat is a device for regulating the temperature of a system so that the system's temperature is maintained near a desired setpoint temperature. The thermostat does this by switching heating or cooling devices on or off or regulating the flow ... [Read full article]
A ton of cooling capacity is the amount of cooling that would be provided by melting a ton of ice. Thus, a central air conditioning system that is rated as a 2-ton system would provide the same cooling as melting two tons of ice per day (24-hour peri... [Read full article]
