State Water Heaters…GTS-510


The GTS-510 is a fully modulating, gas fired, tankless water heater capable of supplying hot water for domestic hot water systems or heating applications and on light commercial applications.

  • The GTS-510 delivers continuous maximum flow rates of up to 10.0 GPM. It can be used in both residential and light commercial applications.
  • It is ENERGY STAR® Qualified.
  • It has a 0.82 energy factor.
  • The Primary Heat Exchanger is constructed with HRS35 Copper alloy for added durability. The HRS35 copper is stronger than standard copper and more resilient against erosion.
  • GTS-510 is available in Natural Gas and Propane (LP) models.
  • Its power input is 11,000 – 199,000 BTU/H for either Natural Gas or Liquid Propane.
  • It easily connects up to 4 units without additional parts or accessories needed. It can be conveniently linked without a multi-unit controller in systems for larger applications.
  • This water heater is available in indoor and outdoor models.
  • It features a manual reset Hi Limit (Set at 194°F).
  • It is provided with overheat Cutoff Fuse.
  • It offers inlet, outlet & mixing thermistors for constant temperature monitoring.
  • It features flame sensor.
  • It features power vent for horizontal or vertical installation.
  • It offers electronic ignition – no pilot light.
  • It has a built in Freeze Protection.
  • It produces low NOx Emissions.
  • It complies with Lead Plumbing Law.
  • The GTS-510 is protected with a 12-year limited warranty on heat exchanger in residential applications, 5-year limited warranty on heat exchanger in commercial applications, and 5-year warranty on all parts.

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