The strong point of these boilers is energy efficiency which is expressed to the maximum of its capacity thanks to the reverse flame gasification system with low emissions and high efficiency, thanks also to high insulation, minimizing the loss of heat. The high performance and compliance with the strictest emission limits mean that they are approved according to the 303-5 class 5 standard and reach the maximum reward coefficient for the thermal account, without forgetting the class A + obtained in terms of energy efficiency. Built to resist over time, LNK boilers are made only with high quality and thick steel (6mm) made with care for every detail. Sturdiness, compactness, solidity for long-lasting operation, an expression of timeless force which is expressed, for example, in the combustion chamber, entirely lined with removable and replaceable steel plates.