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A pellet stove is a stove that burns compressed wood or biomass pellets to create a source of heat for residential and sometimes industrial spaces. By steadily feeding fuel from a storage container (hopper) into a burn pot area, it produces a constant flame that requires little to no physical adjustments.
A chimney sweep in Wexford, Ireland in 1850.. A chimney sweep is a person who inspects then clears soot and creosote from chimneys.The chimney uses the pressure difference caused by a hot column of gas to create a draught and draw air over the hot coals or wood enabling continued combustion.
Chimney sweeps' cancer, also called soot wart or scrotal cancer, is a squamous cell carcinoma of the scrotum.It has the distinction of being the first reported form of occupational cancer, and was initially identified by Percivall Pott in 1775. [1]
When a hot ember ignites the nests, the fire can be just as serious as one caused by ignition of soot. In very old houses, the chimney may also be very large and thick enough to withstand the fire. The high temperatures may affect the strength of the chimney causing distortion of metal structures, and potential failure of ceramic structures.
Pellet stoves or single ovens are generally plants in the power range of max. 6-8 kW and less. They are usually placed directly in the living room. They usually have a small reservoir of pellet fuel which can last for one or more days. Fuel supply and the control of combustion are controlled automatically and the ash removal is done manually.
Soot in very low concentrations is capable of darkening surfaces or making particle agglomerates, such as those from ventilation systems, appear black. Soot is the primary cause of "ghosting", the discoloration of walls and ceilings or walls and flooring where they meet.
The wood gas can then be filtered for tars and soot/ash particles, cooled and directed to an engine or fuel cell. [6] Most of these engines have strict purity requirements of the wood gas, so the gas often has to pass through extensive gas cleaning in order to remove or convert, i.e., "crack", tars and particles.
There are also stove models that can switch from wood fuel to oil or gas sources that are installed in the house to supply heat to a separate water boiler. [6] Stoves that readily convert to either oil or gas in addition to wood fuel have been manufactured in North America and Europe since the early 20th century, and are still manufactured.
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