The ATTSU HH steam boiler is characterised by its performance based on pressurised combustion. It also has 3 smoke passages and a gas inversion chamber that is entirely water-cooled.
It is specially designed for a low thermal load work, which leads to a very low polluting combustion. In addition, and as a result of its large size, it is considered to be one of the leading steam producers on the market. It also has internal water recirculation and stands out for its low resistance to the passage of gases.