Noritz Tankless Water Heater NR98-SVNG has more power than any tankless water heater in its class, the 751 series is ideal for mid-size homes with up to 3+ showers. These units offer several innovations, such as the dual flame burners, Quick-Connect and Turbo-Flow feature which can boost its output up to 9.8 gallons per minute. In addition, the piping is 25% thicker than our competitor's to accomodate the higher flow rate demand.