The NEW Rheem RTG-70XLN-3 Non-Condensing Outdoor NG Water Heater is a high-performance tankless water heater designed for outdoor use with natural gas as the power source. With a 7.0 GPM capacity, this Rheem water heater is efficient and reliable for providing hot water for various household needs. Perfect for improving heating, cooling, and air systems in homes, this tankless water heater offers a cost-effective solution for water heating requirements.