Oil / gas / solid fuel fired, packaged boilers manufactured by Nestler have been in the service of Indian industry for over four decades. These boilers are have excellent and proven design, are robust in construction and possess several other unbeatable features. Nestler manufactures both IRB and non-IRB range of boilers and even Thermic Fluid Heaters and Hot Water Generators. In fact, Nestler is capable of satisfying every conceivable need when it comes to process heat in industries like chemicals, drugs & pharma, distilleries, foods, fertilisers, paper, rubber, steel and textiles. Almost every company worth mentioning in all these industries, uses Nestler boilers or process heat equipment and continues to look towards Nestler for new requirements.

Nestler WBA series boilers are available in capacities from 1 to 30 TPH as steam and hot water generators. Their features include a wet back construction in 3-pass design, compact design, skid mounting with factory fitted insulation and cladding which minimizes heat losses, a large heating surface area and flexibility of firing with a diverse range of fuels such as light, medium and heavy grades of fuel oils, natural gas, LPG, bio-gas and oil/gas. Nestler WBA boilers offer competitive advantages like reduced space requirements, improved combustion and low fan HP resulting in lower power consumption and a minimum guaranteed efficiency of 88 +/- 2% (92 +/- 2% with optional economiser)

Nestler multi-fuel fired boilers offer excellent features of large grate area and furnace volume, no refractory work, open bottom design of the firebox and balanced draught, large steam and water volumes, efficient combustion and compatibility with diverse fuels such as coal, lignite, husk and coffee waste briquettes and other agro fuels. They offer substantial user benefits like a low down-time for repair, reduction in soot deposition, availability of dry steam and easy construction.

Nestler NTH series Thermic Fluid Heaters are offered in capacities ranging from 1 lac kcal/hour to 30 lac kcal/hour. They employ a 3-pass design with high efficiency, having one radiant and three consecutive heat transfer areas, thus eliminating the need of an economiser. The design includes a double-walled (2-shell) construction that provides for insulation as well as the pre-heating of air, thereby aiding combustion. Nestler Thermic Fluid Heaters offer benefits of high coil heat transfer area and a high furnace volume that results in a longer life for the thermic fluid since degradation does not occur.

Nestler has developed a range of non-IBR boilers – the NNI series – in the capacity range of 200 kg/hour to 100 kg/hour. These boilers are ideal for small process plants with limited or modular steam requirements. Nestler non-IBR boilers use a duel shell reverse flame design that offers high radiant heat transfer. The four pass configuration with an integral atmospheric economiser and heat optimiser gives a high operating thermal efficiency of 88% on NCV of oil. They are easy to maintain and utilise high precision instrumentation for accurate control. They can be fired with a variety of industrial oils.

Nestler is one of the few boiler manufacturers in India with a burner manufacturing capability. Both stepless and step modulating types of burners can be offered as per the customer requirement. Burners are designed and manufactured for suitability with oil, gas or dual firing as the case may be. The features of Nestler burners include the presence of a metal diffuser type combustion head for efficient combustion and flame stability. The control unit is built into a free-standing cabinet with a sequence controller and an ultraviolet flame scanning equipment. For oil burners, an integrated oil heating, filtering and pumping unit is provided alongwith interlocking facilities for incorporating user equipment safeties. For gas burners, the complete gas train with safeguards for natural gas firing is provided.