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- For the nuclear test conducted in 1951 see Operation Greenhouse. For the automotive term, see Greenhouse (automotive term).
A greenhouse (also called a glasshouse or hothouse) is a building where plants are cultivated. A greenhouse is built of glass or plastic; it heats up because the sun's incoming electromagnetic radiation warms plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall.
The glass used for a greenhouse works as a selective transmission medium for different spectral frequencies, and its effect is to trap energy within the greenhouse, which heats both the plants and the ground inside it. This warms the air near the ground, and this air is prevented from rising and flowing away. This can be demonstrated by opening a small window near the roof of a greenhouse: the temperature drops considerably. This principle is the basis of the autovent automatic cooling system. Greenhouses thus work by trapping electromagnetic radiation and preventing convection. See solar greenhouse (technical) for a more technical discussion of solar greenhouse workings.
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Greenhouses :: Building Types
Greenhouses :: Outdoor Structures
Veg crew preparing starts greenhouses for next year. Juan & Luis taking down the stawbale pyramids & haluling them to compost.
FarmerRoger (Roger Calhoon) Thu, 05 Nov 2009 17:33:24 -0000
Veg crew preparing starts greenhouses for next year. Juan & Luis taking down the stawbale pyramids & haluling them to compost.
Greenhouse attraction installs wood-fuelled boiler: The greenhouses of Floors Castle in the Scottish borders ar.. http://bit.ly/1Eok0L
Hartleybotanic (George Horton) Thu, 05 Nov 2009 16:28:12 -0000
Greenhouse attraction installs wood-fuelled boiler: The greenhouses of Floors Castle in the Scottish borders ar.. http://bit.ly/1Eok0L
Casa Huerta: Scaleable Greenhouses for Urban Environments http://bit.ly/Hasv3
PMulticulti (Pauline Giroux) Thu, 05 Nov 2009 14:06:24 -0000
Casa Huerta: Scaleable Greenhouses for Urban Environments http://bit.ly/Hasv3
Chicago-area organic farm grows year-round using hoop houses and portable greenhouses. Efficient use of 6 acres. http://bit.ly/3LqZKw
FGNews (Fruit Growers News) Thu, 05 Nov 2009 13:55:14 -0000
Chicago-area organic farm grows year-round using hoop houses and portable greenhouses. Efficient use of 6 acres. http://bit.ly/3LqZKw
Chicago-area organic farm grows year-round using hoop houses and portable greenhouses. Efficient use of 6 acres. http://bit.ly/3LqZKw
VGN_News (VegetableGrowersNews) Thu, 05 Nov 2009 13:55:02 -0000
Chicago-area organic farm grows year-round using hoop houses and portable greenhouses. Efficient use of 6 acres. http://bit.ly/3LqZKw
Botanic Gardens today. http://twitpic.com/ociiz Where we might have greenhouses.. http://twitpic.com/ociiy
paulvarnish (Paul Varnish) Thu, 05 Nov 2009 11:11:55 -0000
Botanic Gardens today. http://twitpic.com/ociiz Where we might have greenhouses.. http://twitpic.com/ociiy
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Aluz Greenhouses - Manufacture, supply and install a range of free-standing, lean-to and custom built greenhouses.
Meta Description: [ Aluz Greenhouses - Manufacture, Supply and Install Freestanding, Lean-to and Custom Greenhouses and Greenhouse Accessories ]
Backwoodsman Horticultural Products - Oban, Argyll supplier of GrowMate pyramid greenhouses; order by phone, fax, post or e-mail.
Meta Description: [ GrowMate is the unique pyramid grower that gardeners love. In a circle just 5' diam it can raise healthy seedlings and cuttings. Heating costs less than running two light-bulbs! Superior light-capture ventilation produce bumper crops of strawberries, tomatoes and other fruits. ]
Greenhouse Supply - Catalogue illustrating over ten different manufacturers of aluminium and timber greenhouses plus greenhouse accessories. All products clearly priced, on-line order facility available.
Meta Description: [ DIY Conservatory Centre Compton garages Lidget garages Alton greenhouses Robinsons greenhouses and greenhouse accessories. Conservatories greenhouses garden buildings sheds chalets and summerhouses and other popular brands Eden Greenhouses Dovetail Greenhouses FAWT Greenhouses Halls Greenhouses ]
Greenhouses UK - On-line arm of Richard Sutton Greenhouses, suppliers of more select manufacturers of greenhouses. Based in Bodmin, Cornwall; order by e-mail, post or phone.
Meta Description: [ Greenhouses UK. com. Largest uk greenhouse selection, top quality greenhouses, glasshouses & accessories supplied worldwide, home or commercial models ]
Griffin Glass Houses - Manufacturers of Victorian made to measure glass houses. Includes technical details, photo gallery and exhibition displays.
Meta Description: [ Griffin Glasshouses UK, made to measure glasshouses and greenhouses in the UK and USA ]
Hampton Garden Buildings - Established company with a showroom near Birmingham. Many special offers on this site are exclusive to Internet users only.
Meta Description: [ Display centre near NEC for conservatories, greenhouses, summerhouses, sheds, log cabins and garages ]
Insulite Panels - Designers and sole distributors of unique greenhouse insulation and shading products.
Meta Description: [ Insulite Panels - designers and sole distributors of unique greenhouse insulation and shading products. Save up to 46% on heating costs in winter and create a cool pleasant environment in summer with these easy to fit attractive panels. ]
Norfolk Greenhouses - Manufacturer and supplier of quickfit greenhouses, conservatories and carports. Online catalogue and ordering.
Meta Description: [ Norfolk Greenhouses - greenhouses and garden accessories ]
Polytunnels.com - Offer a range of polytunnel greenhouses. contact details and catalogue.
Meta Description: [ Polytunnels . com - For polytunnel plastic or polythene tunnel or greenhouse polyhouse poly tunnel ]
Simply Greenhouses - Secure ordering of timber and metal greenhouses, heaters and various accessories.
Meta Description: [ Great savings on green houses - glasshouses, wooden green houses, metal green houses, cold frames, greenhouse heaters - poly tunnels uk ]
Tibshelf Garden Products - Full range of popular greenhouse accessories with price lists from this mail-order company.
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