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  2. Consumer Reports: Best upright vacuums of 2022 - AOL

    www.aol.com/news/consumer-reports-best-upright...

    Dyson Ball Animal 2 $499.99 at Amazon. Dyson Ball Animal 2 $499.00 at Home Depot. Dyson Ball Animal 2 $499.00 at Abt. Kenmore Pet Friendly Cross-Over DU3017. CR's take: A recent addition to our ...

  3. Heating element - Wikipedia

    en.wikipedia.org/wiki/Heating_element

    Radiative heating elements (heat lamps) are high-powered incandescent lamps that run at less than maximum power to radiate mostly infrared instead of visible light. These are usually found in radiant space heaters and food warmers, taking either a long, tubular form or an R40 reflector-lamp form. The reflector lamp style is often tinted red to ...

  4. Vacuum furnace - Wikipedia

    en.wikipedia.org/wiki/Vacuum_furnace

    For example, a low-temperature vacuum oven can be used for drying biomass much more efficiently than drying alone. [3] Similarly, microwave-vacuum drying has shown potential for drying foods like cranberries. [4] [5] At temperatures below 1200 °C, a vacuum furnace is commonly used for the heat treatment of steel alloys. Many general heat ...

  5. Consumer Reports - Wikipedia

    en.wikipedia.org/wiki/Consumer_Reports

    Consumer Reports (CR), formerly Consumers Union (CU), is an American nonprofit consumer organization dedicated to independent product testing, investigative journalism, consumer-oriented research, public education, and consumer advocacy.

  6. Thousands of space heaters sold on Amazon recalled for ...

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    A space heater sold on Amazon is being recalled due to the potential to cause an "electric shock," resulting in a fire hazard, the U.S. Consumer Product Safety Commission (CPSC) announced Thursday.

  7. Electric heating - Wikipedia

    en.wikipedia.org/wiki/Electric_heating

    Most modern electric heating devices use nichrome wire as the active element; the heating element, depicted on the right, uses nichrome wire supported by ceramic insulators. Alternatively, a heat pump can achieve around 150% – 600% efficiency for heating, or COP 1.5 - 6.0 Coefficient of performance , because it uses electric power only for ...