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  2. Hamilton Beach Brands - Wikipedia

    en.wikipedia.org/wiki/Hamilton_Beach_Brands

    The Hamilton Beach drink mixer, with its characteristic spindle and metal container, was found at soda fountains of drug stores throughout North America. Other products included stand mixers (for making batter), fans, and hair dryers. The spindle drink mixer was expanded in the 1930s to enable multiple milkshakes to be processed at once. For a ...

  3. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    The system normally has eight main components: a compressor, a reservoir, a reversing valve which selects between heating and cooling mode, two thermal expansion valves (one used when in heating mode and the other when used in cooling mode) and two heat exchangers, one associated with the external heat source/sink and the other with the ...

  4. Seasonal energy efficiency ratio - Wikipedia

    en.wikipedia.org/wiki/Seasonal_energy_efficiency...

    The SEER rating of a unit is the cooling output during a typical cooling-season divided by the total electric energy input during the same period. The higher the unit's SEER rating the more energy efficient it is. In the U.S., the SEER is the ratio of cooling in British thermal units (BTUs) to the energy consumed in watt-hours.

  5. Fan coil unit - Wikipedia

    en.wikipedia.org/wiki/Fan_coil_unit

    These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

  6. Michelle Obama Skips Jimmy Carter's Funeral and Is 'Still in ...

    www.aol.com/michelle-obama-skips-jimmy-carters...

    The former first lady was notably absent from President Jimmy Carter's state funeral service, leading Barack Obama and Donald Trump to be seated next to one another

  7. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The first mini-split system was sold in 1961 by Toshiba in Japan, and the first wall-mounted mini-split air conditioner was sold in 1968 in Japan by Mitsubishi Electric, where small home sizes motivated their development. The Mitsubishi model was the first air conditioner with a cross-flow fan.

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