The WNS 4 t gas fired steam boiler is a traditional three pass wetback shell steam boiler. Well proven over many years across the world, the WNS 4 ton gas fired steam boiler for sale is preferred by engineers across many industries including Food & Drink, Pharmaceutical and Chemical processing. The WNS gas fired steam boiler incorporates many energy saving features including the unique X-ID boiler tube. With special helical internal ribs this tube increases heat transfer from tube to water space, making the WNS steam boiler probably the most energy efficient steam boiler available today.
