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.