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  2. Fireplace - Wikipedia

    en.wikipedia.org/wiki/Fireplace

    Manufactured fireplaces are made with sheet metal or glass fire boxes. Electric fireplaces can be built-in replacements for wood or gas or retrofit with log inserts or electric fireboxes. A few types are wall mounted electric fireplaces, electric fireplace stoves, electric mantel fireplaces, and fixed or free standing electric fireplaces.

  3. Smoke detector - Wikipedia

    en.wikipedia.org/wiki/Smoke_detector

    Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.

  4. Heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Heat_exchanger

    The hot gas stream can be the exhaust gas from a gas turbine or a diesel engine or a waste gas from industry or refinery. Large systems with high volume and temperature gas streams, typical in industry, can benefit from steam Rankine cycle (SRC) in a waste heat recovery unit, but these cycles are too expensive for small systems. The recovery of ...

  5. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.

  6. Biogas - Wikipedia

    en.wikipedia.org/wiki/Biogas

    The gas pipe is connected to the kitchen fireplace through control valves. The combustion of this biogas has very little odour or smoke. Owing to simplicity in implementation and use of cheap raw materials in villages, it is one of the most environmentally sound energy sources for rural needs. One type of these system is the Sintex Digester.

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  8. Control of fire by early humans - Wikipedia

    en.wikipedia.org/wiki/Control_of_fire_by_early...

    Fourier transform infrared microspectroscopy (mFTIR) yielded evidence, in the form of burned bones and ashed plant remains, that burning took place at the site 1.0 Mya. [3] East African sites, such as Chesowanja near Lake Baringo, Koobi Fora, and Olorgesailie in Kenya, show possible evidence that fire was controlled by early humans. [1]

  9. Passive house - Wikipedia

    en.wikipedia.org/wiki/Passive_house

    In 2008, estimates of the number of passive house buildings around the world ranged from 15,000 to 20,000 structures. [9] [10] In 2016, there were approximately 60,000 such certified structures of all types worldwide. [11] The vast majority of passive house structures have been built in German-speaking countries and Scandinavia. [9]

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