The CXP199iN is the next generation in commercial tankless water heating. Designed for the most intense applications - from restaurants and hotels to multifamily residenses, the SENSEI CX Series provides unlimited hot water leveraging a new, more compact combustion design that allow for easier installation and enhanced operational performance and serviceability. This model includes a built in recirculation pump that offers industry-leading thermal efficiency - providing faster hot water at the faucet when you need it.