Has already been described on this website. For further questions, please contact us at : : contact@infrason.com

Steam jets clean the tubes. This is a "dynamic type" cleaning, where the surfaces to be cleaned must be reached by the action of the jet. It consumes steam , and sometimes this steam is not used efficiently .
The steam jet cleaners are of course inside the boiler, permanently or during the cleaning. Due to the high temperatures involved, maintenance is often expensive.

This device is based on the same principle but steam is replaced by compressed air. The price of the compressed air should be taken into account , and is often quite expensive.
The advantages and disadvantages are about the same the "steam jet " system.
Another compressed air soot cleaning device is based on compressed air in a tank which then blows strongly when opening the fast release valve . It is a strong dynamic blowing device, which should not be used too often as tubes or surfaces have to stand strong abrasion involved by very high velocity of the blow.

This is another dynamic device , but the fluid such as steam or compressed air has been replaced by solid : small steel balls falling from the top of the boiler, bouncing from one tube to the next one. When arriving at the bottom they are separated from the soot, to be used again and again.
However, the tubes must be able to resist the abrasion, and also, their undersides are not cleaned.