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2. International Comfort Products - Wikipedia

   en.wikipedia.org/wiki/International_Comfort_Products

   ICP is a Carrier subsidiary. ICP makes oil and gas furnaces, heat pumps, and central air-conditioning systems for residential and commercial customers. [1] It manufacturers, markets, and sells residential heating and cooling systems under the Arcoaire, Comfortmaker, Day & Night, Heil, KeepRite, Lincoln, and Tempstar brands; its commercial units, with up to 25 tons of cooling capacity, are sold ...

3. Carrier Global - Wikipedia

   en.wikipedia.org/wiki/Carrier_Global

   In 2001, Carrier was the "world's largest manufacturer of air-conditioning, heating, and refrigerator equipment" with a "total employment of 42,600" and a revenue of $8.9 billion. Carrier announced that it would be closing its DeWitt, New York plant. This led to the layoff of 1,000 employees. [10]

4. Willis Carrier - Wikipedia

   en.wikipedia.org/wiki/Willis_Carrier

   It was designed to humidify or dehumidify air, heating water for the first function and cooling it for the second. In 1906 Carrier discovered that "constant dew-point depression provided practically constant relative humidity," which later became known among air conditioning engineers as the "law of constant dew-point depression." On this ...

5. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   A central heating system provides warmth to a number of spaces within a building from one main source of heat. A central heating system has a furnace that converts fuel or electricity to heat. The heat is circulated through the building either by fans forcing heated air through ducts, circulation of low-pressure steam to radiators in each ...

6. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   PTAC systems may be adapted to provide heating in cold weather, either directly by using an electric strip, gas, or other heaters, or by reversing the refrigerant flow to heat the interior and draw heat from the exterior air, converting the air conditioner into a heat pump. They may be installed in a wall opening with the help of a special ...

7. Is It Cheaper To Run Space Heaters Or Central Heat? - AOL

   www.aol.com/cheaper-run-space-heaters-central...

   It's shaping up to be an expensive winter in the United States, with many households likely to spend more on energy in 2022-23 compared with recent winters, according to the U.S. Energy Information...