Type U-ND/U-HD as flame tube professional boiler with
2-pass technology up to an output of
250-3,200 kg/h (low pressure) and
250-1,250 kg/h (high pressure) for steam
generation
Type UL-S as single flame tube/smoke tube
boiler with 3-pass technology up to an output
of 1,250-28,000 kg/h for steam generation
Type ZFR as double flame tube/smoke tube
boiler with 3-pass technology up to an output
of 18,000-55,000 kg/h for steam generation