Nestler ltd supplies oil/gas fired boilers. The nestler wb series wet back oil/gas fired, smoke tube-packaged boilers offers very high efficiency ranges combined with the latest features in steam generation. Manufactured with precision boiler making technology the wb series is a sophisticated range of boilers, developed through in-house research and decades of experience. Nestler wb boilers are manufactured in a 3 pass design, the first path being in the radiant zone in the furnace and the other two in the convection zones with smoke tubes. The design provides for easy accessibility for maintenance and a high thermal efficiency due to the larger-than-average heating surface area. These boilers are extremely safe to operate due to the foolproof and advanced control and safety features. They can be fired with a diverse range of fuels, which include various types of fuel oils, natural gas, lpg and biogas. Available as steam boilers from 1,000 to 30,000 kg/hr and as hot water generators from 0.54 to 16.2 mkcal/hr. Standard pressure rating of 10.5, 14 and 17.5 kg/cm2g.