Bradford White RTG-S-199-N1 199,000 BTU Condensing Tankless Water Heater

The Bradford White RTG-S-199-N1 Infiniti® GS is a high-efficiency condensing tankless water heater designed to provide continuous, on-demand hot water for residential and commercial applications. With a maximum heating input of 199,000 BTU/h and flow rates up to 9.7 GPM, it provides substantial hot-water performance for appropriately sized homes with multiple fixtures and higher simultaneous demand.

Unlike a conventional storage water heater, the RTG-S-199-N1 heats water only when hot water is requested. This on-demand operation eliminates the need to continuously maintain a large tank of heated water, helping reduce standby energy loss while preserving valuable mechanical-room floor space.

The high-efficiency condensing system achieves a Uniform Energy Factor of up to 0.95 and is ENERGY STAR® qualified. Condensing technology captures additional heat from combustion exhaust before it leaves the system, supporting efficient natural-gas consumption and dependable everyday hot-water performance.

The Infiniti® GS Series incorporates a durable stainless-steel heat exchanger designed to support efficient heat transfer, corrosion resistance and long-term reliability. Ultra-Low NOx combustion technology helps reduce nitrogen-oxide emissions, while the integrated air and inlet-water filters help protect internal components from airborne debris and sediment.

With a maximum rated flow of up to 9.7 GPM at a 40°F temperature rise, the RTG-S-199-N1 can support substantial household hot-water demand when professionally sized. At a colder 70°F temperature rise, its rated delivery is approximately 5.6 GPM. Actual flow depends on incoming-water temperature, selected outlet temperature, water pressure and the number of fixtures operating simultaneously.

The compact wall-mounted cabinet measures approximately 27.6 inches high, 17.3 inches wide and 14.9 inches deep. It can be installed indoors or outdoors using the appropriate approved configuration and accessories. Flexible 2-inch or 3-inch venting options help qualified installers accommodate different residential and commercial installation layouts.

Key Features

199,000 BTU/h Maximum Input
Provides substantial heating capacity for larger homes and other appropriately sized high-demand hot-water applications.

Flow Rate up to 9.7 GPM
Delivers up to 9.7 GPM at a 40°F temperature rise. Actual hot-water output decreases as the required temperature rise increases.

Continuous On-Demand Hot Water
Heats water as it is requested, providing a continuous supply when properly sized for the property’s total hot-water demand.

Up to 0.95 UEF Efficiency
High-efficiency condensing operation helps reduce standby energy loss compared with conventional storage water heaters.

ENERGY STAR® Qualified
Meets established energy-efficiency requirements for qualifying gas-fired tankless water heaters.

Stainless-Steel Heat Exchanger
Designed to support efficient heat transfer, corrosion resistance and dependable long-term operation.

Ultra-Low NOx Operation
Reduces nitrogen-oxide emissions while maintaining efficient natural-gas performance.

Air and Inlet-Water Filters
Help prevent airborne debris and water-system sediment from entering sensitive internal components.

Indoor or Outdoor Installation
Supports indoor installations and approved outdoor configurations when the correct accessories and installation requirements are followed.

Flexible Venting Options
Supports approved 2-inch and 3-inch venting configurations to accommodate different installation layouts.

Compact Wall-Mounted Design
Measures approximately 27.6 × 17.3 × 14.9 inches, helping preserve valuable floor space.

No Integrated Recirculation Pump
The GS model does not include a built-in pump, but compatible external recirculation solutions may be designed separately where required.

Residential Warranty Protection
Includes a 15-year limited heat-exchanger warranty and a five-year limited parts warranty for qualifying residential applications. Manufacturer terms and conditions apply.

Why Buy the Bradford White RTG-S-199-N1?

The Bradford White RTG-S-199-N1 is a strong choice for homeowners seeking high-capacity, energy-efficient hot water without the space requirements of a conventional storage tank. Its 199,000 BTU/h input, flow rate of up to 9.7 GPM, condensing operation and stainless-steel heat exchanger provide an effective combination of comfort, efficiency and durability.

Flexible indoor or outdoor installation, Ultra-Low NOx operation and compact wall-mounted construction make it suitable for a wide range of residential applications. Contact ZERO HVACR for a free quote and professional hot-water assessment to confirm that the RTG-S-199-N1 is correctly sized for your home.