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A scheduled delivery is available only Monday - Friday during normal business hours and used for heavy and oversized items (large TVs, large furniture and large appliances). This service includes delivery to the main entrance or garage (but does not include stairs). This service does not include unpacking, plugging in, installation or debris removal.

Note: Scheduled delivery services are available to most of the contiguous United States (available in parts of Alaska and Hawaii). Call 888-228-5800 for more information.
Discontinued Product
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Reliance Tankless Water Heater - TS520GIH

Abt Model: TS520GIH | UPC Code: 091193002957
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This product is no longer available.

Product Details

Energy Star Rated - Yes

Reliance Tankless Water Heater - TS520GIH

Endless Hot Water.* Endless Innovation. Trust “Your Neighborhood Water Heater Source” to give you more choices in tankless water heating. The comprehensive line of Reliance® tankless water heaters supplies endless hot water at preset temperatures*. All models are ENERGY STAR® qualified. Our Condensing models provide the highest energy efficiency, saving money in all applications.


Innovative Technology

  • Condensing models feature a 316L stainless steel secondary heat exchanger, providing additional protection against corrosion
  • Increased flow rates provide continuous hot water (up to 10 GPM)
  • Improved scale-reduction software
  • Whole house water heating solution
  • All models include internal freeze protection and multiple safety features
  • Direct vent conversion kits available for indoor installations
  • Applicable for residential hydronic heating applications

Excellent Performance

  • Complete range of models from 140,000 to 199,000 BTU to cover every application

Energy Efficiency

  • All models are ENERGY STAR® qualified
  • Condensing models provide the highest energy efficiency with 0.91 EF (Energy Factor)
  • Models are eligible for Federal Tax Credit


  • Type: Indoor
  • BTU Input:
    • Minimum: 13,000
    • Maximum: 199,000
  • Energy Factor: 0.91
  • Hot Water Output (GPM)
    • Maximum: 9.0
    • 45° F Rise: 8.1
    • 70° F Rise: 5.2

Warranty Information:

  • Manufacturer Warranty(authorized online retailer):12-year limited warranty on heat exchanger/ 5 Years on Parts
Key Features
Maximum 199,000 BTU Input/ Increased flow rates provide continuous hot water/ Improved scale-reduction software/ Whole house water heating solution/ Energy Star Qualified/ Eligible For Federal Tax Credit/ Applicable For Residential Hydronic Heating Applications/ White Finish
More reasons to buy the Reliance TS520GIH from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Reliance TS520GIH is Brand New.
  • The Reliance TS520GIH Ships in a Factory Sealed Box.
Fuel TypeGas
Gallon Capacity (cu.ft.)Tankless
Tank StyleTankless
Venting TypeSTANDARD
Energy Star QualifiedYes
Delivery is subject to reasonable access to the area without damaging the purchaser's property or the product, or jeopardizing the safety of the delivery personnel.
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