The fireplace can be characterised as the special type of the open room furnace representing a niche in which
fire
wood burns similarly to a
fire. The heat transfer in a
chimney premise from a fireplace is carried out by means,
so-called, radiating heat exchange, i.e. at the expense of radiation of a flame and in very small degree by means of a
heat transfer from heated up elements of a fireplace. Therefore the fireplace gives heat only while in it something
burns. Besides, generated at combustion of
fire wood warmly
fireplaces distribute is not equivalent: in the greatest
measure
heating goes in a zone which is opposite to a fireplace, from sides having heated up much less. In a fireplace
design there are no
smoke turns, characteristic for the usual
heating furnace (passing on them, hot gases warm up
thickness of the furnace, informing it a stock of heat which is given to a premise and after
fire will go out). In a
fireplace, thanks to a direct flue, hot gases leave in a pipe directly. However the fireplace starts to heat up at
once as soon as in it
fire wood lights up. Thus the traditional fireplace in warmly technical relation is not
effective, however in comparison with the furnace
fireplaces warms a room faster, well it ventilate and, of course,
create unique cosy conditions, especially in rainy or cold weather at the expense of a flame openness.
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