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  2. Absorption refrigerator - Wikipedia

    en.wikipedia.org/wiki/Absorption_refrigerator

    Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators.Compression refrigerators typically use an HCFC or HFC, while absorption refrigerators typically use ammonia or water and need at least a second fluid able to absorb the coolant, the absorbent, respectively water (for ammonia) or brine (for water).

  3. Portable stove - Wikipedia

    en.wikipedia.org/wiki/Portable_stove

    A small Snow Peak portable stove running on MSR gas and the stove's carrying case The parts of portable gas stove—gas cartridge, burner and regulator. A portable stove is a cooking stove specially designed to be portable and lightweight, used in camping, picnicking, backpacking, or other use in remote locations where an easily transportable means of cooking or heating is needed.

  4. Beverage-can stove - Wikipedia

    en.wikipedia.org/wiki/Beverage-can_stove

    A three-piece aluminium beverage-can stove. Note the small triangular hole cut in the bottom of the inner wall. The basic design dates back more than a century. [2] It consists of a double-wall gas generator, a perforated burner ring, and an inner preheat chamber.

  5. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    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]

  6. Freeze spray - Wikipedia

    en.wikipedia.org/wiki/Freeze_spray

    Spray containing propane, butane, and ethanol, for dental applications. Freeze spray (cold spray or vapocoolant) is a type of aerosol spray product containing a liquified gas used for rapidly cooling surfaces, in medical and industrial applications. It is usually sold in hand-held spray cans.

  7. Defogger - Wikipedia

    en.wikipedia.org/wiki/Defogger

    A defogger, demister, or defroster is a system to clear condensation and thaw frost from the windshield, backglass, or side windows of a motor vehicle. The rear window defroster was invented by German automobile engineer Heinz Kunert .