Radiant heating


Radiant heating

Radiant heating is a technology utilized for the heating of both indoor and outdoor areas. Radiant heating consists of "radiant energy" being emitted from a heat source.Radiant heating heats a building through radiant heat, rather than other conventional methods including convection heating. The technology has existed since the Roman use of Hypocaust heating. The heat energy is emitted from a warm element (floor, wall, overhead panel) and warms people and other objects in rooms rather than directly heating the air. The internal air temperature for radiant heated buildings may be lower than for a conventionally heated building to achieve the same level of body comfort (when adjusted so the perceived temperature is actually the same).

In the case of outdoor areas, the surrounding air is constantly moving, making conventional patio heaters (also known as "mushroom heaters"), which rely partly on convection heating, impractical. The reason being, that once you heat the outside air, it will blow away with air movement. Outdoor radiant heaters allow specific spaces within an outdoor area to be targeted, warming only the people and objects in their path.

The radiant heating systems can be divided into:
*underfloor heating systems - electric or hydronic
*wall heating systems
*radiant ceiling (overhead) panels
*overhead gas fired radiant heaters

Underfloor and wall heating systems often are called low-temperature systems. Because their heating surface is much larger than with other systems, a much lower temperature is required to achieve the same level of heat transfer. The maximum temperature of the heating surface can vary from 29-35°C (84-95°F) depending on the room type. Radiant overhead panels are mostly used in production and warehousing facilities or sports centers; they hang a few meters above the floor and their surface temperature is much higher.

External links

* [http://www.greenbuildingtalk.com/ Q&A Forum on Radiant Heating]


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Look at other dictionaries:

  • radiant heating — n. a method of heating a space by means of radiation, as from electric coils, hot water or steam pipes, etc. installed in the floor or walls …   English World dictionary

  • radiant heating — 1. the means of heating objects or persons by radiation in which the intervening air is not heated. 2. a system for heating by radiation from a surface, esp. from a surface heated by means of electric resistance, hot water, etc. [1910 15] * * *… …   Universalium

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  • radiant heating — Heating system in which warm or hot surfaces are used to radiate heat into the space to be conditioned …   Dictionary of automotive terms

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  • Radiant Heating System —   A heating system where heat is supplied (radiated) into a room by means of heated surfaces, such as electric resistance elements, hot water (hydronic) radiators, etc …   Energy terms

  • Electric radiant heating —   A heating system in which electric resistance is used to produce heat which radiates to nearby surfaces. There is no fan component to a radiant heating system.   California Energy Comission. Dictionary of Energy Terms …   Energy terms

  • Heating — may refer to: *HVAC: Heating, ventilation and air conditioningHeating devices, or systems: *Block heater, or headbolt heater, an electric heater that heats the engine of a car to ease starting in cold weather *Boiler *Cathode heater, a coil or… …   Wikipedia

  • heating — I Process of raising the temperature of an enclosed space. Heat can be delivered by convection, radiation, and thermal conduction. With the exception of the ancient Romans, who developed a form of central heating, most cultures relied on direct… …   Universalium


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