Noritz NR662-OD-NG Outdoor Tankless Water Heater (Natural Gas)

Noritz NR662-OD-NG Outdoor Tankless Water Heater (Natural Gas)

The Noritz NR662-OD-NG is a high-performance outdoor tankless water heater designed for homeowners who want reliable hot water, energy savings, and more space in their home. With a maximum flow rate of 6.6 gallons per minute (GPM), this unit is capable of supplying hot water to multiple fixtures at once in mild-to-moderate climates. Built with durability in mind, the NR662-OD-NG provides endless hot water whenever you need it while saving energy compared to traditional storage tank heaters.

Reliable Hot Water On Demand

Tankless technology means that water is heated only when you turn on the tap. This eliminates standby energy loss associated with conventional tanks, providing a more efficient and cost-effective solution. The NR662-OD-NG uses advanced burners and safety sensors to deliver water quickly and consistently without fluctuations, ensuring your showers, laundry, and dishwashing needs are always met.

Compact Outdoor Design

Designed for outdoor installation, the NR662-OD-NG does not require additional venting or indoor space. Its slim profile—only 20.5 inches high, 13.8 inches wide, and 6.7 inches deep—makes it ideal for tight spaces or homes where interior square footage is limited. Outdoor mounting also simplifies installation and reduces overall system cost.

Energy Efficiency and Savings

With an input range of 15,000 to 140,000 BTU per hour and a Uniform Energy Factor (UEF) of ~0.81, this non-condensing tankless heater provides dependable efficiency for residential applications. By heating only the water you need, the NR662-OD-NG lowers fuel usage and can help reduce monthly utility bills. Many homeowners also find that tankless systems may qualify for local energy rebates or incentives.

Durability and Safety

Noritz is known for engineering quality. The NR662-OD-NG features a commercial-grade copper heat exchanger for long-lasting performance and multiple built-in safety systems, including freeze protection, flame sensors, and overheat prevention. The unit activates at a low flow rate of just 0.5 GPM, allowing it to perform reliably even when water usage is minimal.

Specifications

• Model: NR662-OD-NG
• Fuel: Natural Gas
• Flow Rate: Up to 6.6 GPM
• Input Range: 15,000–140,000 BTU/h
• Uniform Energy Factor (UEF): ~0.81
• Installation: Outdoor only (vent-free)
• Water Connections: 3/4" NPT
• Minimum Activation Flow: ~0.5 GPM
• Power Requirement: 120 VAC
• Dimensions: 20.5" H × 13.8" W × 6.7" D
• Weight: 35 lb
• UPC: 817000013004

Warranty Coverage

Noritz backs the NR662-OD-NG with excellent warranty protection: 12 years on the heat exchanger, 5 years on parts, and 1 year on labor (residential use). This ensures peace of mind and long-term value for your investment.

Why Choose Noritz?

Noritz has been a leader in water heating technology for decades. Their products are trusted by homeowners, contractors, and professionals worldwide for their quality, innovation, and support. Choosing the NR662-OD-NG means choosing a brand dedicated to energy efficiency, safety, and customer satisfaction.

Ideal Applications

• Single-family homes requiring space-saving hot water solutions
• Outdoor-only installations where venting a tankless heater indoors is impractical
• Replacing aging tank-style water heaters with efficient tankless technology
• Households in moderate climates that demand consistent hot water for multiple fixtures

Note: Professional installation is recommended. Actual performance may vary based on incoming water temperature, flow demand, and installation conditions.