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State Water Heaters 100123441
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State Water Heaters 100123441

State SGTS540NIHNG 199 MBH Indoor Condensing Propane Gas Tankless Water Heater

  • Manufacturers: State Water Heaters
  • Brand Name: State Water Heaters
  • Item #: 65275
  • Rebate Amount:
  • MPN: 100123441
  • Alt Part #: SGTS540PIHLP
  • UPC: 091196042547
  • Qty. Interval: 1
  • Availability: Login for Availability

The 540 series is well suited for residential use. Utilizing commercial grade copper alloy for the heat exchanger tubing, the 540 series is also suitable for heavier-residential usages such as domestic recirculation systems. Remote control included as a standard feature on all Outdoor models. Indoor models are certified up to 10,100 ft. altitude. Provides a variety of installation options: outdoor and direct vent. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements. Easy-Link System capable up to 4 units.


The GTS-540-PIH tankless water heater uses up to 199,000 BTU/hr of liquid propane to deliver an endless supply of hot water for a 3 bath home in northern climates and up to a 4 bath home in southern climates (one shower head per bath). Utilizing condensing technology, this heater is extremely efficient with a Uniform Energy Factor of 0.93. With an industry leading 15-year limited warranty, the GTS-540-PIH tankless water heater provides years of hot water through innovation and quality.

Type      :      Natural Gas
Application      :      Tankless
Vent Type      :      Direct Vent
UEF      :      0.93
Number of Elements      :      1
Power Source      :      Natural Gas
Voltage Rating      :      120 VAC
Phase      :      Single
Product Weight      :      70.9 lbs
Warranty      :      15 Year Heat Exchanger/5 Year Part
BTU Rating      :      199000 Btu/hr
Digital Display      :      Yes
Heat Exchanger      :      Commercial-Grade Copper
Inlet Gas Pressure      :      4.0-10.5 in. W.C.
LEED Points      :      1.5
Secondary Heat Exchanger      :      Stainless Steel
Water Connection Location      :      Bottom
Water Connection Size      :      3/4 in.
  • ULTRA-LOW NOX CONDENSING TECHNOLOGY PROVIDES UP TO 0.95 UNIFORM ENERGY FACTOR DURABLE HEAT EXCHANGER
    • Primary Heat Exchanger is constructed of Commercial-Grade Copper that is more resilient to erosion and is 25x better at heat transfer than stainless steel thus stabilizing outgoing water temperatures quicker
    • Secondary Heat Exchanger is made of Type 316L Stainless Steel to protect against corrosion
  • CONTINUOUS MAXIMUM FLOW RATES UP TO 10.0 GPM ENERGY STAR® QUALIFIED AVAILABLE IN NATURAL GAS OR PROPANE (LP) INDOOR MODEL - INCLUDES INTEGRATED TEMPERATURE CONTROLLER AND ADVANCED DIAGNOSTICS TO SIMPLIFY TROUBLESHOOTING OUTDOOR MODEL - INCLUDES A WALL MOUNT TEMPERATURE REMOTE CONTROLLER AND ADVANCED DIAGNOSTICS TO SIMPLIFY TROUBLESHOOTING FACTORY-INSTALLED POWER CORD INCLUDED FOR INDOOR MODELS GTS-540 MODELS
    • Can be used in residential and commercial applications
      • Easy-link up to 4 heaters
      • Multi-link up to 20 heaters
  • COMMON VENT UP TO 8 UNITS COMPLIES WITH LEAD FREE STANDARDS
  • SAFETY FEATURES:
    • Air-Fuel Ratio (AFR) Sensor
    • Exhaust & Water Temperature Safety Control
      • Overheat Cut-Off Fuse
  • INTERNAL FREEZE PROTECTION SYSTEM POWER DIRECT VENT DESIGN
    • Exhaust, 3” PVC Venting up to 70 feet or 4” PVC Venting up to 100 feet
    • Provides flexible venting with PVC, CPVC, or ABS Pipe for Intake and Exhaust (solid core only). Canadian Installations Require ULCS636 Listed PVC or CPVC Pipe for Venting.
    • Category III or IV venting can be used
  • ACCESSORIES
    • Pipe Cover
    • Neutralizer Kit
    • Isolation Valve Kits
    • Concentric Termination
  • WARRANTY
    • 15-year limited warranty on heat exchanger in residential applications
    • 5-year limited warranty on heat exchanger in commercial applications
    • 5-year limited warranty on all parts