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To reduce the danger, louvered vents that allow air to pass through can incorporate fusible links so that fire will melt the links in which case the vent will automatically close. In addition, an automatic cutoff switch can be set up to turn off power to the fan if it detects a temperature above a preset limit. [1] [2]
An autovent is a device for maintaining a greenhouse or conservatory within a range of temperatures. The basic principle is that as greenhouse heats above ambient the air inside becomes lighter, the vent opens when a certain temperature is reached and lets the hot air out - drawing cooler air in from outside.
The majority of guidance available for design of heat and smoke building vents installed in buildings is restricted to nonsprinklered, single-story buildings. [4] This is partly a historical consequence of the installation of heat and smoke vents following the August 1953 General Motors, Livonia, MI major fire in a nonsprinklered manufacturing facility which effectively stopped the production ...
Vent (submarine), a valve on a submarine's ballast tanks; Automatic bleeding valve, a plumbing valve used to automatically release trapped air from a heating system; Drain-waste-vent system or plumbing drainage venting, pipes leading from fixtures to the outdoors; Duct (flow), used to deliver and remove air
US stocks mostly rose on Thursday as investors look at earnings. Amazon issues weak sales outlook after the close. Monthly jobs data due Friday.
Home Depot – in September 2014, the cybercriminals that compromised Home Depot's network and installed malware on the home-supply company's point-of-sale systems likely stole information on 56 million payment cards. [32] StarDust – in 2013, the botnet compromised 20,000 cards in active campaign hitting US merchants. [33]