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Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows:
12,000.00 Btu IT /h 2,593.90 ft⋅lbf/s A ton of refrigeration ( TR or TOR ), also called a refrigeration ton ( RT ), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment.
Sears Hometown and Outlet Stores Inc. was an American retail company that sold home appliances, lawn & garden equipment, apparel, mattresses, sporting goods, and tools. [3] [4] The company had four subsidiary store formats: Sears Hometown, Sears Outlet, Sears Hardware and Appliance, and Sears Home Appliance Showrooms. [5]
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...
Sears Holdings now operated Sears and Kmart stores. The company continued to market products under brands held by both companies. [11] The two companies cited several reasons for combining forces: Sears had begun investing in new, larger off-mall stores, called Sears Grand. Earlier in the year, Sears had purchased dozens of current Super Kmart ...
Sears, Roebuck and Co., commonly known as Sears (/ s ɪər z / SEERZ), [6] is an American chain of department stores founded in 1892 by Richard Warren Sears and Alvah Curtis Roebuck and reincorporated in 1906 by Richard Sears and Julius Rosenwald, with what began as a mail ordering catalog company migrating to opening retail locations in 1925, the first in Chicago. [7]
Shipped by railroad boxcar, and then usually trucked to a home site, the average Sears Modern Home kit had about 25 tons of materials, with more than 30,000 parts. [10] Plumbing, electrical fixtures, and heating systems were options that could be ordered at additional cost; they were many families' first steps to modern HVAC systems, kitchens ...
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