electrical heater
81Direct on line starter — A direct on line starter, often abbreviated DOL starter, is a widely used starting method of electric motors. The term is used in electrical engineering and associated with electric motors. There are many types of motor starters, the simplest of… …
82Housing in Japan — A public housing building provided by the government of Tokyo …
83Heat pump — A heat pump is a machine or device that moves heat from one location (the source ) to another location (the sink or heat sink ), using work. Most heat pump technology moves heat from a low temperature heat source to a higher temperature heat sink …
84Control system — For other uses, see Control system (disambiguation). A control system is a device, or set of devices to manage, command, direct or regulate the behavior of other devices or system. There are two common classes of control systems, with many… …
85Reef aquarium — See also: Marine aquarium Reef aquarium in Monaco A reef aquarium or reef tank is an marine aquarium that prominently displays live corals and other marine invertebrates as well as fish that play a role in maintaining the coral reef environment.… …
86All American Five — The All American Five was a mass produced, superheterodyne radio receiver with five vacuum tubes first designed and produced in the USA in the 1930s.The radio was called the All American Five because the design represented the majority of radios… …
87Circulator pump — A circulator pump is a specific type of pump used to circulate gases, liquids, or slurries in a closed circuit. They are commonly found circulating water in a hydronic heating or cooling system. Because they only circulate liquid within a closed… …
88EcoCute — The EcoCute is an energy efficient heat pump that uses both electricity and heat extracted from the air to heat water for domestic use. Instead of the more conventional ammonia or haloalkane gases, EcoCute uses carbon dioxide as a refrigerant.… …
89soldering — Process that uses metal alloys with low melting points to join metallic surfaces without melting them. Tin lead solders, once widely used in the electrical and plumbing industries, are now replaced by lead free alloys. Such alloys are also used… …
90AFR sensor — Articleissues cleanup=August 2008 wikify=August 2008 copyedit=August 2008 inappropriate tone=August 2008 jargon=August 2008 orphan=August 2008The AFR is a new type of Oxygen Sensor that is slowly replacing the Zirconium O2 sensor in modern… …
