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A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.
Intermatic Incorporated is an American manufacturer of time switches headquartered in Spring Grove, Illinois. Intermatic was founded in 1891 in Chicago, Illinois as the International Register Company to produce fare registers .
The use of dynamic switching instead of a fixed timer allows some additional demand management, such as by flexing start and finish times for electric heating loads according to prevailing overall demand levels. Some suppliers also offer more sophisticated heating control using the radio teleswitch network.
An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...
It's Christmas Eve — and if you still need a gift this year, we've found all the best ones that don't require any shipping. This list includes gift cards, date nights, subscription services, and ...
Gout Gout of Queensland wins his Boys' U18 100m heat in 10.04 seconds with a +3.4 tail-wind during the 2024 Chemist Warehouse Australian All Schools Athletics Championship at Queensland Sport and ...
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