Rinnai America Corp.
The system is designed to make the installation of multi-unit condensing tankless water heaters easier. The system is available in freestanding or wall-mounted options for indoor or outdoor applications and can be shipped fully assembled, including gas and water manifolds, to any location in the country. Individual racks can hold between two and six 199,000-Btu condensing units, which have an energy factor of 0.95. For larger tankless systems, multiple racks can be banked to give commercial customers up to 25 units and nearly five million Btus of input capacity. The freestanding version of the fully assembled system fits through a standard 32-inch doorway, even with attached water heaters.