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  2. Patio heater - Wikipedia

    en.wikipedia.org/wiki/Patio_heater

    The chimenea is an alternative to the patio heater for home use, which burns wood instead of gas. Some newer types of patio heaters are electrically powered radiative heaters that emit infrared energy onto nearby surfaces, which in turn heat up the surrounding air. Other styles of outdoor patio heaters include:

  3. The Best Portable Heaters Will Warm Any Room of the House - AOL

    www.aol.com/warm-room-house-best-portable...

    Equipped with PTC technology, this tiny heater is both efficient and energy-saving. It quietly heats up in seconds and gets as hot as 176 degrees. Plus, that color is exceptionally vintage-looking ...

  4. Voltage optimisation - Wikipedia

    en.wikipedia.org/wiki/Voltage_optimisation

    Avoiding overvoltage high enough to cause saturation does not reduce efficiency [9] so substantial energy savings can be made through reducing iron and copper losses. However, motors designed for the nominal voltage (e.g. 400 V) should be able to cope with normal variation in voltage within the supply limits(+/-10%) without saturation, so this ...

  5. Outdoor heating - Wikipedia

    en.wikipedia.org/wiki/Outdoor_heating

    Outdoor heating is space heating that allows people to stay in substantially unenclosed spaces that would otherwise be too cold for comfort. To this end, various outdoor heating appliances are available, including gas patio heaters , quartz or ceramic electric lamps, and wood burning chimenea and fire pits.

  6. These Are the Best Electric Kettles for Every Budget ... - AOL

    www.aol.com/lifestyle/best-electric-kettles...

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  7. Dedicated outdoor air system - Wikipedia

    en.wikipedia.org/wiki/Dedicated_outdoor_air_system

    DOAS air handling unit with heat recovery wheel and passive dehumidification. A dedicated outdoor air system (DOAS) is a type of heating, ventilation and air-conditioning system that consists of two parallel systems: a dedicated system for delivering outdoor air ventilation that handles both the latent and sensible loads of conditioning the ventilation air, and a parallel system to handle the ...