Abstract: Auxiliary boiler systems, and methods of implementing and/or operating auxiliary boiler systems, are disclosed herein. In one example embodiment, an auxiliary boiler system for use in conjunction with a main steam source includes an auxiliary boiler, a deaerator coupled directly to and integrated with the auxiliary boiler, and a condensate storage tank coupled at least indirectly to the deaerator. Also, in another example embodiment, a method of implementing an auxiliary boiler system for use in conjunction with a main steam source includes setting a condensate storage tank in relation to a first support structure at a first position, and setting an auxiliary boiler at a second position. The method further includes directly coupling a deaerator to the auxiliary boiler so that the deaerator is integrated with the auxiliary boiler, and installing at least one interconnection by which the condensate storage tank is at least indirectly coupled to the deaerator.

Abstract: A boiler system having a generally cylindrical housing or shell includes a main or fire tube with a furnace or combustion chamber extending longitudinally near the bottom of the housing and a burner to accomplish combustion within the combustion chamber. The combustion chamber opens at its rear end to furnace tube sheet, and to a first set of tubes extending longitudinally of the boiler. The first set of tubes extends to and through the rear tube sheet of the boiler to a turnaround space, which transitions to a second set of tubes located above the combustion chamber and first set of tubes to generally span a length extending from the rear tube sheet of the boiler to the front tube sheet. The boiler system as disclosed has a reduced size while maintaining efficiency in steam and hot water applications.