These burners Low NOx Class 3 (< 80 mg/kWh) can be installed on all pressurized boilers up to 150 kW. Thanks to the new placement of the mechanical and electronic components and to the innovative combustion head, they are easy to use and to be mantained and they ensure optimized performance. The latter aspect is due to the optimal air/fuel mix which lets the flame burn progressively along the length of the combustion chamber.