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  2. Gas heater - Wikipedia

    en.wikipedia.org/wiki/Gas_heater

    Upright non-flued liquefied petroleum gas heater, 1970s A wall mounted gas heater that runs on either propane or natural gas. A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: flued or ...

  3. List of preserved historic blast furnaces - Wikipedia

    en.wikipedia.org/wiki/List_of_preserved_historic...

    A charcoal furnace operating 1755–1812, [2] belonging to Kendall & Co., owners of Duddon furnace in Cumbria and other ironworks, using iron ore from Cumbria and local charcoal. The furnace building stands beside the road in the village of Furnace and can be viewed from the road: no public access.

  4. Hot blast - Wikipedia

    en.wikipedia.org/wiki/Hot_blast

    Hot blast allowed the use of anthracite in iron smelting. It also allowed use of lower quality coal because less fuel meant proportionately less sulfur and ash. [11]At the time the process was invented, good coking coal was only available in sufficient quantities in Great Britain and western Germany, [12] so iron furnaces in the US were using charcoal.

  5. Catalytic heater - Wikipedia

    en.wikipedia.org/wiki/Catalytic_heater

    Platinum can be used with natural gas, propane and butane. It generates a surface temperature of 300–550 °C, lower than the 760 °C ignition point. [6] Pt heaters are the most common type. [7] Palladium can be used with hydrogen gas. Pd-coated carbon was used in 2010 for a prototype heater built by the Sandia National Laboratory. [8]

  6. History of manufactured fuel gases - Wikipedia

    en.wikipedia.org/wiki/History_of_manufactured...

    The introduction of heat recuperation for the preheating of the air of primary and secondary combustion. By causing the exhaust of the retort-bench to pass through a maze of refractory brickwork, substantial quantities of heat can be extracted from it. On the other side of the exhaust channels are channels for the passage of the air of combustion.

  7. BBQ on a Budget -- Savings Experiment - AOL

    www.aol.com/news/2013-07-18-did-you-know...

    It all comes down to charcoal vs. gas. BBQ enthusiasts may find this hard to believe, but when it comes to. In the summer, grilling is a great way to cook meals, but firing up the barbecue costs ...

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