Designed to satisfy the most demanding industrial applications, the array “DUEMILA series” Class 2 (< 120 mg/kWh) is the largest of the aluminium monoblock burnersburners; it features an steel housing and a backward curved centrifugal impeller. The performance range of this array of product goes from 2.500 to 19.000 kW and its modulating ratio is 1:3. Higher modulating ratio (up to 1:10) is available, upon request, in those models with mobile combustion head and electronic control unit.