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Hydronic heating systems are the most popular systems used in Irish homes. There are a variety of different forms within the hydronics range but they all track back to the basic premise that hydronics uses water as a heat-transfer medium in both heating and cooling systems. In other words, the heat coming from your radiator is hot water, heated by boiler and distributed by a pumping arrangement - a circulation pump - to all areas of the home. Hydronics is old technology but very effective nonetheless and is used in modern day systems such as under floor heating.
Some of the oldest and most common examples are steam and hot water radiators. In large-scale commercial buildings such as office or municipal complexes, a hydronic system may include both a chilled and a heated water loop, to provide for both heating and air conditioning. In addition, many larger cities have a district system that provides, through underground piping, publicly available steam and chilled water. By paying a service fee, a building in the service district will connect to these.
Hydronic systems are of three basic types:
• Steam
• Hot water
• Chilled water
Hydronic systems are classified in five ways:
• Flow generation (forced flow or gravity flow)
• Temperature (low, medium, and high)
• Pressurization (low, medium, and high)
• Piping arrangement
• Pumping arrangement
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