Rheem’s commercial condensing tankless water heaters are engineered to save energy and provide flexible installation options. Ideal for applications up to 185° F that require continuous hot water, the line includes eight 199,000 Btu/h max condensing models that are 96% thermal efficient. Select models feature a factory-installed manifold controller, allowing up to 20 units to connect in a system for load balancing and redundancy. The indoor natural gas units are common vent compatible, saving space, materials and reducing outside wall penetrations. New factory-assembled commercial tankless systems with single-point connections for water, gas and electrical are coming soon.