Noritz NRC661-DV-NG 120,000 BTU Indoor Condensing Tankless Water Heater (Natural Gas)

Noritz NRC661-DV-NG 120,000 BTU Indoor Condensing Tankless Water Heater (Natural Gas)

The Noritz NRC661-DV-NG is a high-efficiency indoor condensing tankless water heater designed for small to mid-sized homes. With a 120,000 BTU burner and condensing technology, this unit delivers reliable hot water while maximizing energy efficiency and reducing operating costs.

Key Features

• 120,000 BTU input ideal for moderate residential hot water demand.
• Condensing technology improves efficiency by capturing additional heat from exhaust gases.
• Up to ~6.6 GPM flow rate depending on temperature rise.
• Indoor direct-vent installation using PVC, CPVC, or polypropylene venting (verify local code).
• Lower exhaust temperatures allow flexible and cost-effective venting options.
• Stainless steel heat exchangers engineered for durability and corrosion resistance.
• Electronic ignition eliminates the need for a standing pilot.
• Built-in safety features including freeze protection, flame failure detection, and overheat protection.

Ideal Applications

• Small to mid-sized single-family homes
• Homes with 1–2 bathrooms
• Apartments, condos, and ADUs
• Indoor installations where efficiency is a priority

Technical Specifications

• Model: Noritz NRC661-DV-NG
• Fuel Type: Natural Gas
• BTU Input Range: 18,000 – 120,000 BTU/hr
• Maximum Flow Rate: Up to ~6.6 GPM (varies by temperature rise)
• Installation: Indoor, direct-vent
• Efficiency / UEF: ~0.93 (condensing)
• Venting: PVC, CPVC, or polypropylene
• Condensate Drain: Required
• Water Connections: 3/4"
• Gas Connection: 3/4"
• Electrical: 120V AC
• Approximate Weight: ~60 lbs
• Warranty: 12-year heat exchanger, 5-year parts, 1-year labor (residential)

Why Buy From United Plumbing & Fire Supply?

• Competitive pricing on Noritz tankless water heaters
• Fast and reliable shipping
• Local pickup and job-site delivery options
• Knowledgeable support for proper model selection

Always confirm venting material, condensate drainage, gas sizing, and local code requirements with a licensed installer before installation.