The Central Manifold Distribution System is a hot water system in which hot water enters a kind of small holding tank near the hot water heater from which many small lines go out directly to each hot water fixture in the home. This type of system eliminates some water waste because the run from the hot water storage tank to an individual fixture is typically smaller than in a conventional system, but like a conventional system can result in water and energy waste if measures to recapture or recirculate the heat from the hot water feed lines are not put into place. Given the layout of brownstones, with utilities typically located in the basement, this system may not be practical.