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  2. Grate heater - Wikipedia

    en.wikipedia.org/wiki/Grate_heater

    This tubular fireplace grate heater has a large surface area heat exchanger in a compact design, with a fan or blower (fans and blowers are not the same) to multiply the effect of natural convection. This is a very basic tubular blower that sits under a grate and heats the air being pumped through it from the heat of the coals.

  3. Fireplace - Wikipedia

    en.wikipedia.org/wiki/Fireplace

    Fireplace with tubular grate heater, with a high surface area in its heat exchanger and a lift out ash tray to simplify cleanup Some fireplace units incorporate a blower, which transfers more of the fireplace's heat to the air via convection , resulting in a more evenly heated space and a lower heating load.

  4. Fire-tube boiler - Wikipedia

    en.wikipedia.org/wiki/Fire-tube_boiler

    A fire-tube boiler is a type of boiler invented in 1828 by Mark Seguin, [1] in which hot gases pass from a fire through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.

  5. Pulverized coal-fired boiler - Wikipedia

    en.wikipedia.org/wiki/Pulverized_coal-fired_boiler

    Prior to the developments leading to the use of pulverized coal, most boilers utilized grate firing where the fuel was mechanically distributed onto a moving grate at the bottom of the firebox in a partially crushed gravel-like form. Air for combustion was blown upward through the grate carrying the lighter ash and smaller particles of unburned ...

  6. Firebox (steam engine) - Wikipedia

    en.wikipedia.org/wiki/Firebox_(steam_engine)

    Some fireboxes were equipped with a so-called combustion chamber, this is a distinct component from the firebox and tubes - a large single extension of the firebox space, into the boiler barrel, and above the brick arch and separated from the grate and the fire bed, this placed additional space between the fire and the rear fire tube/flue sheet.

  7. The Matt Gaetz report: Read the House Ethics Committee's full ...

    www.aol.com/matt-gaetz-report-read-house...

    Strong allegations. The Ethics Committee report alleged that: From at least 2017 to 2020, Gaetz "regularly" paid women for sex. From 2017 to 2019, Gaetz "used or possessed illegal drugs, including ...

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