- Continuous Hot Water—Delivers continuous hot water at a flow rate of up to 10.0 GPM
- Space-Saving Design—Wall-mount design saves valuable space and allows for additional storage and flexibility
- Optimized Heat Transfer—Commercial-grade copper heat exchanger is 25x better than stainless steel at heat transfer, stabilizing outgoing water temperatures quickly
- Converts to A Different Fuel Source—Easily convertible from natural gas to propane with supplied kit
- Energy Efficient—Highly-efficient condensing Ultra-Low Nox tankless water heater delivers up to .82 Uniform Energy Factor (UEF)
- Longer Vent When Needed—Vents up to 60 feet using 4” Category III stainless steel
- Simple Control & Troubleshooting—Integrated temperature controls and advanced diagnostics make it easy to adjust settings and troubleshoot problems
- Safety Features—Added safety protection from built-in freeze protection, overheat cut-off fuse, and air-fuel ratio (AFR) sensor
- Peace of Mind—Industry-leading 15-year limited warranty on heat exchanger in residential applications
The State GTS-510U-I Ultra Low-NOx Indoor Non-Condensing Tankless water heater uses up to 199,000 BTU/h of natural gas to deliver an endless supply of hot water for a 2.5 bath home in northern climates and a 4-bath home in southern climates (one shower head per bath).
This model is suitable for commercial applications like beauty salons and small restaurants. A commercial-grade copper heat exchanger with a thicker drum means the GTS-510U-I can handle heavier residential usages, such as a combined space heating and domestic recirculation system.
This model has a small footprint and is wall-mountable, providing a variety of installation options. The GTS-510U-I complies with Ultra-Low NOx regulations, meets the energy efficiency requirements of ASHRAE 90.1-b 1992, and has a Uniform Energy Factor of 0.82.
For high-use applications, Easy-Link up to 4 units with the included communication cables. A Multi-Link controller (sold separately) can link up to 20 units.
The GTS-510U-I tankless water heater provides years of hot water through innovation and quality and is backed by an industry-leading 15-year limited warranty.
