A flue-gas stack is a type of chimney, a vertical pipe, channel or similar structure through which combustion product gases called flue gases are exhausted to the outside air.
 Flue gases are produced when coal, oil, natural gas, wood or any other fuel is combusted in an industrial furnace, a power plant's steam-generating boiler, or other large combustion device.
 Flue gas is usually composed of carbon dioxide (CO) and water vapor as well as nitrogen and excess oxygen remaining from the intake combustion air.
 It also contains a small percentage of pollutants such as particulate matter, carbon monoxide, nitrogen oxides and sulfur oxides.
 The flue gas stacks are often quite tall, up to 400 metres (1300 feet) or more, so as to disperse the exhaust pollutants over a greater area and thereby reduce the concentration of the pollutants to the levels required by governmental environmental policy and environmental regulation.
Flue gas is the gas exiting to the atmosphere via a flue, which is a pipe or channel for conveying exhaust gases from a fireplace, oven, furnace, boiler or steam generator.
 Quite often, the flue gas refers to the combustion exhaust gas produced at power plants.
 Its composition depends on what is being burned, but it will usually consist of mostly nitrogen (typically more than two-thirds) derived from the combustion of air, carbon dioxide (CO ), and water vapor as well as excess oxygen (also derived from the combustion air).
 It further contains a small percentage of a number of pollutants, such as particulate matter (like soot), carbon monoxide, nitrogen oxides, and sulfur oxides.
A masonry heater (or masonry stove, ceramic stove, tile stove) is a device for warming an interior space through radiant heating, by capturing the heat from periodic burning of fuel (usually wood), and then radiating the heat at a fairly constant temperature for a long period .
 The technology has existed in different forms, from back into the Neoglacial and Neolithic periods.
 Archeological digs have revealed excavations of ancient inhabitants utilizing hot smoke from fires in their subterranean dwellings, to radiate into the living spaces.
 These early forms have evolved into modern systems.
 Evidence found from 5,000 B.C. of massive blocks of masonry used to retain heat foreshadowed early forms of fire hearths that were used as multifunctional heating sources.
 Later evolutions came in the Roman "hypocaust", Austrian/German ("kachelofen", baths) using the smoke and exhaust of a single fire.
 In Eastern and Northern Europe and North Asia, these kachelofens (or "steinofens") evolved in many different forms and names: for example the Russian Stove/Fireplace (Russian: ), the Finnish Stove (in Finnish: "pystyuuni" or "kaakeliuuni", "tile oven") and the Swedish Stove (in Swedish: "kakelugn", "tile stove" or "contra-flow stove") associated with Carl Johan Cronstedt.
 The Chinese developed the same principle into their Kang bed-stove.
 The masonry heater has gained renewed domestic popularity recently because of its heating efficiency.
A smokebox is one of the major basic parts of a steam locomotive exhaust system.
 Smoke and hot gases pass from the firebox through tubes where they pass heat to the surrounding water in the boiler.
 The smoke then enters the smokebox, and is exhausted to the atmosphere through the chimney (or funnel).
 Early locomotives had no smokebox and relied on a long chimney to provide natural draught for the fire but smokeboxes were soon included in the design for two main reasons.
 Firstly and most importantly, the blast of exhaust steam from the cylinders, when directed upwards through an airtight smokebox with an appropriate design of exhaust nozzle, effectively draws hot gases through the boiler tubes and flues and, consequently, fresh combustion air into the firebox.
 Secondly, the smokebox provides a convenient collection point for ash and cinders ("char") drawn through the boiler tubes, which can be easily cleaned out at the end of a working day.
 Without a smokebox, all char must pass up the chimney or will collect in the tubes and flues themselves, gradually blocking them.
The difference between atmospheric pressure and the pressure existing in the furnace or flue gas passage of a boiler is termed as draft.
 Draft can also be referred to the difference in pressure in the combustion chamber area which results in the motion of the flue gases and the air flow.
A chimney is a structure that provides ventilation for hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere.
 Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney effect.
 The space inside a chimney is called a "flue".
 Chimneys may be found in buildings, steam locomotives and ships.
 In the United States, the term smokestack (colloquially, stack) is also used when referring to locomotive chimneys or ship chimneys, and the term funnel can also be used.
The Lexington was a paddlewheel steamboat that operated along the Atlantic coast of the Northeastern United States between 1835 and 1840, before sinking in January 1840 due to an onboard fire.
 Commissioned by industrialist Cornelius Vanderbilt, the ship was considered one of the most luxurious steamers in operation, and began service on a route between New York City and Providence, Rhode Island.
 In 1837, the "Lexington" switched to the route between New York and Stonington, Connecticut, the terminus of the newly built railroad from Boston.
 Vanderbilt sold the ship to his competitor, the New Jersey Steamship Navigation and Transportation Company, in December 1838 for $60,000, at which time the "Lexington" was reputedly the fastest steamer on Long Island Sound.
 On the night of 13 January 1840, midway through the ship's voyage, the casing around the ship's smokestack caught fire, igniting nearly 150 bales of cotton that were stored nearby.
 The resultant fire was impossible to be extinguished, and necessitated the evacuation of the ship.
 The ships' overcrowded lifeboats were sunk almost immediately after their launch, leaving almost all of the ship's passengers and crew to drown in the freezing water, with rescue attempts impossible due to the rough water and lack of visibility.
 Of the estimated 143 people on board the "Lexington", only four survived, having clung to large bales of cotton which had been thrown overboard.
A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.
 Historically the term flue meant the chimney itself.
 In the United States, they are also known as vents for boilers and as breeching for water heaters and modern furnaces.
 They usually operate by buoyancy, also known as the stack effect, or the combustion products may be 'induced' via a blower.
 As combustion products contain carbon monoxide and other dangerous compounds, proper 'draft', and admission of replacement air is imperative.
 Building codes, and other standards, regulate their materials, design, and installation.
Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials.
 Incineration and other high-temperature waste treatment systems are described as "thermal treatment".
 Incineration of waste materials converts the waste into ash, flue gas and heat.
 The ash is mostly formed by the inorganic constituents of the waste, and may take the form of solid lumps or particulates carried by the flue gas.
 The flue gases must be cleaned of gaseous and particulate pollutants before they are dispersed into the atmosphere.
 In some cases, the heat generated by incineration can be used to generate electric power.
Fly ash, also known as "pulverised fuel ash" in the United Kingdom, is a coal combustion product composed of fine particles that are driven out of the boiler with the flue gases.
 Ash that falls in the bottom of the boiler is called bottom ash.
 In modern coal-fired power plants, fly ash is generally captured by electrostatic precipitators or other particle filtration equipment before the flue gases reach the chimneys.
 Together with bottom ash removed from the bottom of the boiler, it is known as coal ash.
 Depending upon the source and makeup of the coal being burned, the components of fly ash vary considerably, but all fly ash includes substantial amounts of silicon dioxide (SiO) (both amorphous and crystalline), aluminium oxide (AlO) and calcium oxide (CaO), the main mineral compounds in coal-bearing rock strata.

Question: Provide another name for a structure that provides ventilation for hot flue gases, or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere, used in relation to boats rather than buildings, an example being the paddlewheel steamboat known as the Lexington which sank due to an onboard fire when the structure caught fire igniting 150 bales of cotton?
Answer: smokestack