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Underfloor Heating
Underfloor heating and cooling is a form of Heating, ventilation, and air conditioning, central heating and cooling that achieves indoor climate control for thermal comfort using hydronics, hydronic or electrical heating elements embedded in a floor. Heating is achieved by Conduction (heat), conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods. History Underfloor heating has a long history back into the Neoglacial and Neolithic periods. Archeological digs in Asia and the Aleutian islands of Alaska reveal how the inhabitants drafted smoke from fires through stone covered trenches which were excavated in the floors of their subterranea (geography), subterranean dwellings. The hot smoke heated the floor stones and the heat then radiated into the living spaces. These early forms have evolved into modern systems using fluid filled pipes or electrical cables and mats. Below is a chronological overview of under floor heating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ondol
(; , ; ) or ''gudeul'' (; ) in Korean traditional architecture is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor. In modern usage, it refers to any type of underfloor heating, or to a hotel or a sleeping room in Korean (as opposed to Western) style. The main components of the traditional ondol are an '' agungi'' (; ), a '' firebox'' or '' stove'', accessible from an adjoining room (typically kitchen or master bedroom), a raised masonry floor underlain by horizontal smoke passages, and a vertical, freestanding chimney on the opposite exterior wall providing a draft. The heated floor, supported by stone piers or baffles to distribute the smoke, is covered by stone slabs, clay and an impervious layer such as oiled paper. History Origin Use of the has been found at archaeological sites in present-day North Korea. A Neolithic Age archaeological site, ''circa'' 5000 BC, discovered in Sonbong, Rason, in present-day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hammam
A hammam (), also often called a Turkish bath by Westerners, is a type of steam bath or a place of public bathing associated with the Islamic world. It is a prominent feature in the culture of the Muslim world and was inherited from the model of the Roman '' thermae.'' Muslim bathhouses or hammams were historically found across the Middle East, North Africa, al-Andalus (Islamic Iberia, i.e. Spain and Portugal), Central Asia, the Indian subcontinent, and in Southeastern Europe under Ottoman rule. In Islamic cultures the significance of the hammam was both religious and civic: it provided for the needs of ritual ablutions but also provided for general hygiene in an era before private plumbing and served other social functions such as offering a gendered meeting place for men and for women. Archeological remains attest to the existence of bathhouses in the Islamic world as early as the Umayyad period (7th–8th centuries) and their importance has persisted up to modern tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malbork Castle
The Castle of the Teutonic Order in Malbork, commonly known as Malbork Castle (; ), is a Brick Gothic castle complex located in the town of Malbork, Poland, built in the 13th and significantly expanded in the 14th century. It is the largest castle in the world measured by land area and a UNESCO World Heritage Site. It was constructed by the Teutonic Order, a German Catholic religious order of crusaders, in the form of an ''Ordensburg'' fortress and named ''Marienburg'' in honour of Mary, mother of Jesus. In 1457, during the Thirteen Years' War (1454–1466), Thirteen Years' War, the castle was sold by Bohemian mercenaries to King Casimir IV Jagiellon, Casimir IV of Poland in lieu of Malbork treaty, indemnities. It then served as one of several List of Polish monarchs , Polish royal residences and the seat of Polish offices and institutions, interrupted by several years of Sweden, Swedish occupation, fulfilling this function until the Partitions of Poland , First Partition of Po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teutonic Order
The Teutonic Order is a religious order (Catholic), Catholic religious institution founded as a military order (religious society), military society in Acre, Israel, Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Saint Mary in Jerusalem was formed to aid Christians on their pilgrimages to the Holy Land and to establish hospitals. Its members have commonly been known as the Teutonic Knights, having historically served as a crusades, crusading military order for supporting Catholic rule in the Holy Land and the Northern Crusades during the Middle Ages, as well as supplying military protection for Catholics in Eastern Europe. Purely religious since 1810, the Teutonic Order still confers limited honorary knighthoods. The Bailiwick of Utrecht of the Teutonic Order, a Protestant order of chivalry, chivalric order, is descended from the same medieval military order and also continues to award knighthoods and perform charitable work. Name The name of the Or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poland
Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukraine to the east, Slovakia and the Czech Republic to the south, and Germany to the west. The territory has a varied landscape, diverse ecosystems, and a temperate climate. Poland is composed of Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 million people, and the List of European countries by area, fifth largest EU country by area, covering . The capital and List of cities and towns in Poland, largest city is Warsaw; other major cities include Kraków, Wrocław, Łódź, Poznań, and Gdańsk. Prehistory and protohistory of Poland, Prehistoric human activity on Polish soil dates to the Lower Paleolithic, with continuous settlement since the end of the Last Gla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tandoor
A tandoor ( or ) is a large vase-shaped oven, usually made of clay. Since antiquity, tandoors have been used to bake unleavened flatbreads, such as roti (as well as leavened ones, such as naan) and to roast meat. Tandoors are predominantly used in India, Pakistan, West Asia, Western Asia, Central Asia, and the Horn of Africa. The standard heating element of a tandoor is an internal charcoal or wood fire, which cooks food with direct heat and smoke. Tandoors can be fully above ground, or partially buried below ground, often reaching over a meter in height/depth. Temperatures in a tandoor can reach , and they are routinely kept lit for extended periods. Therefore, traditional tandoors are usually found in restaurant kitchens. Modern tandoors are often made of metal. Variations, such as tandoors with gas or electric heating elements, are more common for at-home use. Etymology The English word comes from the Hindustani language, Hindustani ''tandūr'', which came from Persian la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle East
The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq. The term came into widespread usage by the United Kingdom and western European nations in the early 20th century as a replacement of the term Near East (both were in contrast to the Far East). The term "Middle East" has led to some confusion over its changing definitions. Since the late 20th century, it has been criticized as being too Eurocentrism, Eurocentric. The region includes the vast majority of the territories included in the closely associated definition of West Asia, but without the South Caucasus. It also includes all of Egypt (not just the Sinai Peninsula, Sinai) and all of Turkey (including East Thrace). Most Middle Eastern countries (13 out of 18) are part of the Arab world. The list of Middle Eastern countries by population, most populous countries in the region are Egypt, Turkey, and Iran, whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Empire
The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of effective sole rule in 27 BC. The Western Roman Empire, western empire collapsed in 476 AD, but the Byzantine Empire, eastern empire lasted until the fall of Constantinople in 1453. By 100 BC, the city of Rome had expanded its rule from the Italian peninsula to most of the Mediterranean Sea, Mediterranean and beyond. However, it was severely destabilised by List of Roman civil wars and revolts, civil wars and political conflicts, which culminated in the Wars of Augustus, victory of Octavian over Mark Antony and Cleopatra at the Battle of Actium in 31 BC, and the subsequent conquest of the Ptolemaic Kingdom in Egypt. In 27 BC, the Roman Senate granted Octavian overarching military power () and the new title of ''Augustus (title), Augustus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gudeul
(; , ; ) or ''gudeul'' (; ) in Korean traditional architecture is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor. In modern usage, it refers to any type of underfloor heating, or to a hotel or a sleeping room in Korean (as opposed to Western) style. The main components of the traditional ondol are an ''agungi'' (; ), a '' firebox'' or ''stove'', accessible from an adjoining room (typically kitchen or master bedroom), a raised masonry floor underlain by horizontal smoke passages, and a vertical, freestanding chimney on the opposite exterior wall providing a draft. The heated floor, supported by stone piers or baffles to distribute the smoke, is covered by stone slabs, clay and an impervious layer such as oiled paper. History Origin Use of the has been found at archaeological sites in present-day North Korea. A Neolithic Age archaeological site, ''circa'' 5000 BC, discovered in Sonbong, Rason, in present-day North ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypocausts
A hypocaust () is a system of central heating in a building that produces and circulates hot air below the floor of a room, and may also warm the walls with a series of pipes through which the hot air passes. This air can warm the upper floors as well. The word derives from Ancient Greek ''hupó'' and ''kaustós'' (compare ''caustic''). The earliest reference to such a system suggests that the Temple of Ephesus in 350 BC was heated in this manner, although Vitruvius attributes its invention to Sergius Orata in c. 80 BC. Its invention improved the hygiene and living conditions of citizens, and was a forerunner of modern central heating. Roman operation Hypocausts were used for heating hot baths and other public buildings in ancient Rome. They were also used in private homes. It was considered proper and necessary by the wealthier merchant class for their villas, throughout the Roman Empire. The ruins of Roman hypocausts have been found throughout Europe (for example in Ital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
