The NORITZ NRC71DV is a fully condensing tankless water heater with an advanced heat exchanger design and built-in controller. With flow rates up to 7.1 gallons per minute the NRC71DV delivers the highest flow rates in it category and can be vented using 3" Schedule 40/80 PVC, PP or CPVC. �Various adapters and terminations are available to allow for a wide array of venting options. This unit ships complete with a 6' power cord. �IK-WV-200-1-XX-LF valve kit (required for installation) sold separately. Common companion items include rain cap (PRC-1), atmospheric conversion kit (SVCK-3) and horizontal termination/intake PVT-HL.