State 199K BTU 15 Year Indoor Non-Scaling Tankless Natural Gas Water Heater

• Ultra-Low NOx emissions
• 199,000 BTU/hr max
• 15,000 BTU/hr min
• 0.93 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
• Stainless Steel secondary heat exchanger
• 120 V
• Energy Star certified
• 1.5 LEED points
• Digital display
• Condensing

Install Instructions
Specification Sheet

The GTS-540X3 series is well suited for residential applications. State Water Heaters have combined water heating and treatment in a product designed to revolutionize tankless water heating. Our new condensing gas tankless line features X3 Scale Prevention Technology to last three times longer than other tankless models without X3 Technology. Complies with Ultra-Low NOx regulations. The GTS-540X3 utilizes commercial grade copper alloy for the heat exchanger tubing. Certified up to 10,100 ft. altitude. The GTS-540X3-NIH is well suited for residential applications. State Water Heaters has combined water heating and treatment in a product designed to revolutionize tankless water heating. Our new condensing gas tankless line features X3 Scale Prevention Technology to last three times longer than other tankless models without X3 Technology. Complies with Ultra-Low NOx regulations. Utilizing commercial grade copper alloy for the heat exchanger tubing, the GTS-540X3 is also suitable for heavier residential usages such as space heating or domestic recirculation systems. Certified up to 10,100 ft. altitude.