10 Best Tankless Gas Water Heaters 2025 in the United States

The Rheem RTGH-95DVLN-3 is a strong contender in the tankless gas water heater category. With a flow rate of up to 9.5 gallons per minute (GPM) and a BTU rating of 199,900, it’s capable of supplying hot water for multiple outlets simultaneously, making it ideal for larger households. Its energy efficiency rating of 0.93 means you can expect decent savings on energy bills, which is a big plus for budget-conscious consumers. Additionally, the unit features an integrated digital display that allows for easy temperature adjustments, ranging from 100 to 140°F, catering to various user preferences.

The Rheem RTG-70DVLN-3 is an indoor tankless natural gas water heater designed to deliver continuous hot water with a maximum flow rate of 7 gallons per minute. This capacity allows it to support multiple simultaneous water uses, such as running a shower and dishwasher together, making it suitable for medium to larger households. It features an energy efficiency rating of 0.82, helping reduce gas consumption by heating water only when needed, which can lower energy bills. The unit includes hot-start programming to prevent cold water bursts, enhancing user comfort.

The Rheem RTG-95DVLN-3 is a solid choice for those seeking a tankless gas water heater that can supply continuous hot water to an entire household. With a maximum flow rate of 9.5 gallons per minute, it can handle simultaneous use of showers, dishwashers, or other appliances without running out of hot water. Its energy factor rating of 0.82 means it operates with good efficiency, turning on only when hot water is needed, which helps save on energy bills. The hot-start programming feature keeps water warm and ready, reducing the annoying cold bursts when you first turn on the tap. This model also includes LeakGuard technology to detect internal leaks early, protecting your home from water damage—a useful safety feature.