State Water Heaters 540P 199 BTU Series Indoor Condensing Tankless Water Heater - Natural Gas


State Water Heaters





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The 540P series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. The onboard computer modulates combustion to yield an Uniform Energy Factor of 0.93 while meeting the strictest gas emissions standards. As part of the high efficiency tankless family, the 540P series provides endless hot water while being environmentally friendly.
The GTS-540P-NIH indoor tankless water heater uses up to 199,000 BTU/hr of natural gas to deliver an endless supply of hot water for a 3 bath home in northern climates and a 4 bath home in southern climates. It is built with commercial grade materials like marine-grade 316L stainless steel giving it an industry-leading warranty.


  • Integrated re-circulation pump
  • Dual heat exchanger
  • Includes freeze, overheat, surge protection and troubleshooting diagnostic codes
  • Endless hot water

Product Specifications

More Information
State Water Heaters 540P 199 BTU Series Indoor Condensing Tankless Water Heater - Natural Gas
Weight (in lbs) 71.000000
Exhaust Flue Requirement Plastic / PVC
Manufacturer State Water Heaters
Additional Information Emissions: Ultra-Low NOx
Additional Information Heat Exchanger: Commercial Grade Copper
Additional Information LEED Points: 1.5
Heating BTU 199,000
Venting Type Vented
Flue Location Bottom
Energy Star Yes
Electrical 120V AC, 60Hz
Fuel Type Natural Gas
Height 23-5/8"
Width 17-3/4"
Depth 11-1/4"
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Safety Information PROPOSITION 65 WARNING


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