6 Benefits of Oil / Gas Fired Boilers: Saves running costs 88 % on NCV to the Boiler and increase the efficiency Large convective heating surface in the 2nd & 3rd pass tubes ensures excellent heat transfer Big water holding & steam holding space gives to quick response to fluctuating steam demands. Massive large heat transfer surface reduces the thermal stresses on the boiler surfaces. Dry steam reduces the processing time, saved the steam & improved quality of processed goods Horizontal packaged boilers – less site work & quick commissioning