Navien has introduced the new Ready-Link® Manifold System for NPE Tankless Water Heaters. The company says the accessory makes manifold mounting, onto the Ready-Link® Rack or directly to a wall, simple for new multi-unit installations or emergency same day replacements. The kits are available in configurations of two, three, and four units side-by-side, and two and four units back-to-back. Multiple Ready-Link® Manifold Systems can be combined to support up to 16 cascading units in 30 different arrangements.