Noritz GQ-C2861WX-FF Us Ng Tankless Water Heater 180K Btu

Product Description

The NORITZ GQ-C2861WX-FF US NG is a condensing tankless water heater designed for indoor residential installation on natural gas. It delivers up to 180,000 BTU/h of heating capacity and a flow rate of 9.8 gallons per minute, making it suitable for high-demand domestic hot water applications. The unit operates as a direct vent appliance, drawing combustion air from and exhausting flue gases to the outside through a sealed two-pipe venting system. With a Uniform Energy Factor of 0.98, it ranks among the most efficient units in its class and qualifies for condensing-class performance. Licensed plumbers and mechanical contractors are the typical installing trade for this type of equipment.

This unit is built for indoor residential installations where high hot water demand requires a tankless solution. The direct vent configuration makes it well suited for tight or conditioned spaces where room-air combustion is not practical or code-compliant. At 9.8 GPM, the GQ-C2861WX-FF US NG can support multiple simultaneous fixtures in larger residential settings. The EZ Series Pro platform is designed to simplify installation with accessible connection points and straightforward venting configurations, reducing labor time on new installs and replacements alike.

Key Features

• 180,000 BTU/h input capacity supports high-demand residential hot water loads
• 9.8 GPM flow rate handles multiple simultaneous hot water draw points
• Condensing design achieves a 0.98 Uniform Energy Factor for high efficiency
• Direct vent sealed combustion draws outdoor air, suitable for indoor installation
• Natural gas fuel with indoor-rated housing
• EZ Series Pro platform designed for simplified field installation

Compatibility

Designed as an OEM residential condensing tankless water heater for natural gas indoor direct vent applications.

Installation Notes

Installation must be performed by a licensed plumber or mechanical contractor in accordance with local codes and the manufacturer installation manual. Shut off the gas supply and cold water inlet before beginning any connection work. Direct vent systems require a properly sized two-pipe concentric or parallel vent termination — do not mix vent materials or reduce pipe diameters beyond manufacturer specifications. Follow IFGC and local jurisdiction requirements for gas line sizing, combustion air, and condensate disposal.

Technical Specifications

• Fuel Type: Natural Gas
• Heating Capacity: 180,000 BTU/h
• Flow Rate: 9.8 gallons per minute
• Uniform Energy Factor: 0.98
• Venting Type: Direct Vent
• Installation Location: Indoor
• Unit Type: Condensing Tankless
• Application: Residential

Standard Information

• Brand: NORITZ
• Manufacturer Part Number: GQ-C2861WX-FF US NG