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The terms greenhouse, glasshouse, and hothouse are often used interchangeably to refer to buildings used for cultivating plants. The specific term used depends on the material and heating system used in the building. Nowadays, greenhouses are more commonly constructed with a variety of materials, such as wood and polyethylene plastic. [2]
Polytunnels are mainly used in temperate regions in similar ways to glass greenhouses and row covers. Besides the passive solar heating that every polytunnel provides, every variation of auxiliary heating (from hothouse heating through minimal heating to unheated houses) is represented in current practice. The nesting of row covers and low ...
In compost-heated greenhouses, heat and carbon dioxide are generated from a manure-based compost contained in a special chamber attached to one side of the greenhouse. [24] The New Alchemy Institute designed and built an experimental composting greenhouse in 1983 to research opportunities for the production of biothermal energy. [25]
But with such a wide range of greenhouse technology being used – from mega-farms on many acres to microclimates created with “high tunnel” or “hoop house” setups involving plastic arched ...
District 70 has installed four new solar greenhouses that students will get to work on and help feed the district.
A 2002 study compared production energy values for building components (e.g. walls, floors, roofs) made predominantly of wood, steel and concrete, and found that wood construction has a range of energy use from 185 to 280 Gigajoules (GJ), concrete from 265 to 521 GJ, and steel from 457 to 649 GJ.
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