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Stoves with open combustion
chambers and open chimneys which are located in the
residential place or kitchens, for supplying hot water
and heating, because of burning inside a close area
and also chimneys subscription between floors, put
residence health in serious dangers. Taking unites
with open combustion chamber inside a living area
let some gases such as Carbon Mono Oxide & No.X
influence and spread and consume the area’s
oxygen. Breathing these gases, especially CO will
lead to brain and heart tissues being damaged because
of their hard absorbencies by blood hemoglobin instead
of oxygen. In this case, in older people especially
who suffer from heart and/or chronicle diseases and
in sequence decrease in blood transformation to heart
muscles, received blood since has not enough oxygen,
may cause Necrosis or heart/brain failure.
Neither no wise man
nor good engineers neglect the risk of diseases &
deaths made by spread of gas from some open combustion
chambers and open chimneys installed inside a closed
residential area and fire risk and the speed of fire
transfer between apartments. Besides, installation
of such these systems with open combustion chamber
in a closed area of a building, an unexpected defect,
gas leakage into atmosphere and accumulation, can
make a real catastrophe with uncompensating results
just with a small spark for all residences and neighbors.
In the other hand, cause of shape and form of these
unites atmospheric burner, mostly, and inability for
controlling oxygen, Nitrogen in high temperature of
flame make different composition with oxygen called
NoX which are too dangerous and toxic and in lungs
mix with water and make toxic acid, these acids can
be absorbed by blood and hurt the kidney, heart and
brain cells. Acid rains that ruin woods and plants
are a mixture of NoX gases with water in the high
chimney.
Another kind of heating unites is steel boilers, installing
in central heating systems, not having all the above
harmfulness. But since they are made by shaping and
welding the metal sheets and pipes provide less flexibility
of forming and bring the best heating surface and
the highest heating efficiency. Too high fuel usage,
defect & corrosion are some other week points
of this system. Moreover, in welding points, two different
materials make a thermocouple and corrosion creeping
circulation. Where sulfur composed in fuels, in burning,
making sulfur acids, that increase rate of defecting;
rustling steel sheets from outside and creeping corrosion
by water from inside. Cast Iron Boiler overcomes these
problems, too.
These
boilers in comparison with cast irons that both external
& internal surface is jaggy and porous.50% of
heating surface is in touch with flame as exterior
and another half is in touch with water as interior,
functionally, make two proper and equal surfaces for
100% heating surface. This will increase heating output
and bring down fuel usage.
Central
heating systems with cast iron boilers is free of
all above disadvantages. Because of combustion system
with burners equipped with fans and also complete
close combustion chamber with enough space, waves
and fins made in internal side of boiler, combustion
will be complete and external gases, at the final
phase, while passing through channels in contact with
heating balance parts which are completely roasted,
will be completed and goes by to the specific chimney
to the roof.
Irrigation
parts are some ten times more extended than boilers
with copper piping, so that their blocking and corrosion
of boiler by water hardness is less than usual. Closed
boiler and outer way just by a chimney and open fan
for central unite, applying a fan for burner and gas
evacuation before litting as if gas leakage, has no
risk for gas accumulation rather other systems.
So that
locating outside living area, access to the central
system is in control of an expert and there will be
no pressure on system with open exhilaration system.
There is no trace of combustion because of complete
closed boiler, too. This system is very much common
in Europe and US and major installation masterpieces
studied it moreover. |
