To make multiple-unit condensing tankless water heater installation easier and more flexible for commercial contractors, Rinnai introduces its tankless rack system. The system is available in free-standing or wall-mounted options for indoor or outdoor applications. It can be ordered, built and shipped fully assembled, including gas and water manifolds, to any location in North America, including direct to the jobsite. The free-standing version of the fully assembled Rinnai TRS fits through a standard 32” doorway, even with attached water heaters, for easy moving and installation.