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Sub-Zero was founded as the Sub-Zero Freezer Company on August 20, 1945 by Westye F. Bakke in Madison, Wisconsin. [2] In 2000, it acquired the domestic appliance line of the Wolf Range Corporation, [3] a California-based manufacturer of professional-style ranges, cooktops and grills for both home and commercial use.
In 1950 the company was sold to a group of investors, including its founder, and became Amana Refrigeration, Inc. [5] In 1954, it began making air conditioners . [ 6 ] Amana was acquired in 1965 by Raytheon , [ 7 ] which had invented the microwave oven in 1947, and introduced the commercial Radarange Model 1611 in 1954. [ 5 ]
The following is a timeline of low-temperature technology and cryogenic technology (refrigeration down to close to absolute zero, i.e. –273.15 °C, −459.67 °F or 0 K). [1] It also lists important milestones in thermometry , thermodynamics , statistical physics and calorimetry , that were crucial in development of low temperature systems.
The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. [1] [2] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs. The COP is used in thermodynamics.
Natural refrigerants are considered substances that serve as refrigerants in refrigeration systems (including refrigerators, HVAC, and air conditioning).They are alternatives to synthetic refrigerants such as chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), and hydrofluorocarbon (HFC) based refrigerants.
Warren Buffett once said he’d buy a ‘couple hundred thousand’ American homes — and he’d take out 30-year mortgages to do it. Here’s how to ‘load up’ on US real estate in 2025.
'Warmed up to 24 below zero' In Minot, North Dakota, city spokeswoman Jen Kleen her car's temperature gauge said it was minus 32 degrees while she was driving to work on Tuesday morning.
Whether you prefer your backyard repast merely recumbent, fully relaxed or damn near comatose, Best Choice's Folding Zero Gravity Outdoor Recliner will send you to heaven, and keep you there. And ...
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