The last type of emergency that you would want to be inconvenienced by is a 'Plumbing Emergency' . There was a time when running hot water was a mere luxury for people who had the means to install it, but it was accompanied by the burden of expensive maintenance and lack of service. The plumbing of any type of building or structure is actually a vast network of pipes and fixtures that act as an intricate system designed to provide the same 'outcome', repeatedly. When that outcome is affected, it is usually because there is a 'clog' in the system.