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Section view of room with internally cooled and heated concrete slab ceiling
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",[1] and infrared heaters. According to some definitions, a technology is only included in this category if radiation comprises more than 50% of its heat exchange with the environment;[2] therefore technologies such as radiators and chilled beams (which may also involve radiation heat transfer) are usually not considered radiant heating or cooling. Within this category, it is practical to distinguish between high temperature radiant heating (devices with emitting source temperature >≈300 °F), and radiant heating or cooling with more moderate source temperatures. This article mainly addresses radiant heating and cooling with moderate source temperatures, used to heat or cool indoor environments. Moderate temperature radiant heating and cooling is usually composed of relatively large surfaces that are internally heated or cooled using hydronic or electrical sources. For high temperature indoor or outdoor radiant heating, see: Infrared heater. For snow melt applications see: Snowmelt system.
^ abcISO. (2012). ISO 11855:2012—Building environment design-Design, dimensioning, installation and control of embedded radiant heating and cooling systems. International Organization for Standardization.
^ASHRAE Handbook. HVAC Systems and Equipment. Chapter 6. Panel Heating and Cooling, American Society of Heating and Cooling, 2012
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for basements and garages where spot heating is desired. More generally, they are an excellent choice for task-specific heating. Radiant heaters operate...
water) as a heat-transfer medium in heatingandcooling systems. The name differentiates such systems from oil and refrigerant systems. Historically, in...
heaters, fireplaces, and solar heating. Heat Pumps: They can be used for heatingandcooling, transferring heat using refrigerant and electricity, making...
processing applications, and can also be used in enclosed spaces. Similar mixtures are commonly used in HVAC and industrial heating or cooling systems as a high-capacity...
generator. Flat-plate and evacuated-tube solar collectors are mainly used to collect heat for space heating, domestic hot water, or cooling with an absorption...
radiative cooling (PDRC) is a zero-energy building cooling method proposed as a solution to reduce air conditioning, lower urban heat island effect, cool human...
aluminium fins, thereby heating the fins. A fan blows air across the fins, cooling the fins as they heat the air. Electric heating elements made of resistance...
used to transfer heat between a source and a working fluid. Heat exchangers are used in both coolingandheating processes. The fluids may be separated...
gas heaters have been further developed to include units that utilize radiant heat technology, rather than the principles of the Bunsen burner. This...
for space heating or cooling. A similar standard, MINERGIE-P, is used in Switzerland. Standards are available for residential properties and several office...
engineering (CAE), and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heatingandcooling systems,...
refrigerant. Air is a common form of a coolant. Air cooling uses either convective airflow (passive cooling), or a forced circulation using fans. Hydrogen...
systems. The radiant system is used for both heatingandcooling. To chill the water in the radiant system, the system makes use of a cooling tower located...
words θερμός thermos, "hot" and στατός statos, "standing, stationary". A thermostat exerts control by switching heating or cooling devices on or off, or by...
support for external heating through a hydronic heating coil or natural gas heating also exist. Typical PTAC heatingandcooling capacity values range...
vapor is the reason that steam is a far more effective heating medium than boiling water, and is more hazardous. In meteorology, latent heat flux is the...