Standby generators are necessary in many buildings as part of the Emergency electrical power supply and they are used to power a number of life safety devices.  Such devices include the fire pumps, fire alarm, emergency lighting, exit lighting, smoke evacuation and pressurization fans, and the elevators.  The emergency electrical power system along with the

In this brief discussion we take a quick look at the differences between designing and operating a dedicated domestic hot water (DHW) boiler plant and a combined heat and hot water (CHHW) plant producing the domestic hot water indirectly via a heat exchanger.  In drawing this comparison we need to assume the storage, circulation, and