GTS-510U-I State 199K BTU 15 Year Low NOx Tankless Natural Gas Water Heater

• Ultra-Low NOx emissions
• 199,000 BTU/hr max
• 15,000 BTU/hr min
• 0.81 UEF
• 15 Year limited heat exchanger warranty
• 5 year limited parts warranty
• Bottom water connection
• 3/4" water connection size
• Commercial-grade Copper heat exchanger
• 120 V
• Digital Display
• Non-Condensing

Install Instructions
Specification Sheet

The 510U is well suited for residential/commercial applications such as small restaurants and beauty salons. It features a commercial grade copper heat exchanger with a thicker heat exchanger drum which is suitable for commercial applications or heavier-residential usages such as space heating or domestic recirculation systems. The design allows for a variety of installation options. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements of ASHRAE 90.1-b 1992. Easy-Link System capable up to 4 units. Multi-Link system capable up to 20 units. The GTS-510U-I tankless water heater uses up to 199,000 BTU/h of natural gas/liquid propane to deliver an endless supply of hot water for a 2.5 bath home in northern climates and up to a 4 bath home in southern climates (one shower head per bath). The GTS-510U-I has a Uniform Energy Factor of 0.81. With an industry leading 15-year limited warranty, the GTS-510U-I tankless water heater provides years of hot water through innovation and quality.