Let’s face it, every plant needs heat and hot water. But not all plants are the same. Hot water used for heat and domestic hot water systems need to be separate, but do they need separate boilers? Can we utilize the same heat source for both saving energy and initial capital costs? Heating boilers that work in near condensing and condensing conditions have come a long way. Gone are the days where a central tank serves the entire facility or where a steam boiler is run just to heat intermittent hot water needs. With the increasing incidents of Legionella in potable water systems, on demand, tankless systems are becoming more critical for improving public health not to mention the standard for the highest efficiency possible.