Point of use (POU) or under-sink water heaters offer an economical solution for instant hot water in stand-alone and remote fixture applications, allowing to eliminate energy loss and waiting times, while taking up very little space. They are best suited for fixtures such as low-flow handwashing sinks, eyewash stations and similar. Note: when selecting a point of use heater, consider that they are generally intended for servicing a single fixture and should be carefully sized based on fixture flow rate and ground (incoming/cold) water temperature.