The Rheem Performance Plus 9.5 GPM Smart Non-Condensing Indoor Tankless Water Heater provides continuous hot water for households with 2 to 4 showers. This natural gas unit features a 199,900 BTU rating and a 0.82 Uniform Energy Factor for high efficiency performance. Equipped with EcoNet WiFi technology, it allows for remote temperature control and monitoring via smartphone. The compact, wall-mounted design saves significant space compared to traditional tank heaters. It requires professional installation with a 3-inch/5-inch concentric venting system and is Ultra Low NOx compliant for reduced emissions. Designed for indoor use, this unit includes a 12-year heat exchanger warranty and is ideal for busy homes needing simultaneous hot water for multiple fixtures