How do ATTSU RLAS superheated water boilers work?

ATTSU's RLAS superheated water boilers are designed with a circuit of tubes and separations between them that ensure the water recirculates and the heat is transferred in a uniform way.

The models in this range work with both liquid and gaseous fuels. The thermal power of these shell boilers ranges from 38 to over 3,500 kW, with three passes of smoke with flame inversion, which means they can achieve efficiency levels of over 90%.