The KNIGHT line of commercial boilers from Lochinvar offers a fully modulating burner with 5:1 turndown and a cascading feature that allows multiple boilers to be controlled by one central boiler. The turndown feature allows a KNIGHT boiler to generate as much or as little heat necessary to provide a consistent, stable indoor temperature. The KNIGHT offers a simple SMART SYSTEM™ operating control with a user-friendly interface. Plus, the boiler's self-diagnostic features will interface with a PC to speed up service calls and show trends in energy consumption. The cascading feature means that no additional control must be purchased to get the money saving advantages of a sequencer in the KNIGHT.
Spirax Sarco, Inc., will exhibit its BDHR Series of packaged boiler blowdown heat recovery systems that are designed to recover up to 95% of the heat energy normally lost with conventional continuous blowdown separators. The resulting condensate can be used to preheat boiler makeup water, and the resulting flash steam can be used to heat the deaerator tank or for other fuel-saving uses. As they recycle waste energy, BDHR systems cool boiler blowdown to 140°F or less, acceptable for discharge to municipal wastewater systems. The modules are available with eight sizes of centrifugal blowdown vessels ranging from 8 in. to 26 in., with capacities from 100 lb/hr to 100,000 lb/hr.