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Noritz NR662-OD-NG 140,000 BTU Outdoor Residential Tankless Water Heater (Natural Gas)
Noritz NR662-OD-NG 140,000 BTU Outdoor Residential Tankless Water Heater (Natural Gas)
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Noritz NR662-OD-NG 140,000 BTU Outdoor Residential Tankless Water Heater (Natural Gas)
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Noritz NR662-OD-NG 140,000 BTU Outdoor Residential Tankless Water Heater (Natural Gas)
The Noritz NR662-OD-NG is a high-performance outdoor tankless water heater designed for homeowners who want endless hot water, energy savings, and reliable outdoor operation. With a 140,000 BTU input and up to 6.6 GPM flow, this model is ideal for small to mid-sized homes, cabins, apartments, and accessory dwelling units.
Key Features
- 140,000 BTU/hr burner delivers consistent hot water for multiple fixtures.
- Outdoor installation eliminates the need for venting, simplifying installation.
- High efficiency with a UEF around 0.82–0.84, helping reduce utility bills.
- 6.6 GPM flow rate supports showers, sinks, and laundry simultaneously (varies by temperature rise).
- Durable weather-resistant casing protects the unit in outdoor environments.
- Electronic ignition — no pilot light required.
- Compact wall-mounted design saves space and keeps mechanical rooms uncluttered.
- Reliable safety features including freeze protection, flame monitoring, and overheat safety.
Ideal Applications
- Small to mid-sized homes
- Cabins and vacation homes
- ADUs, guest houses, or secondary units
- Apartments and duplexes
- Outdoor-preferred installations where venting is difficult
Technical Specifications
- Model: Noritz NR662-OD-NG
- Fuel Type: Natural Gas
- BTU Input: Up to 140,000 BTU/hr
- Flow Rate: Up to ~6.6 GPM (depending on temperature rise)
- UEF: ~0.82–0.84 (varies slightly by region)
- Installation: Outdoor only — no venting required
- Water Connection: 3/4"
- Gas Connection: 3/4"
- Dimensions: Approx. 24" H × 14" W × 9" D
- Weight: ~37 lbs
- Ignition: Direct electronic ignition
- Warranty: 12-year heat exchanger, 5-year parts, 1-year labor (residential when installed per code)
Why Buy From United Plumbing & Fire Supply?
- Fast shipping and reliable handling
- Competitive pricing on all Noritz models
- Local pickup and job-site delivery options
- Trusted supplier for both homeowners and contractors
Always confirm installation requirements with a licensed plumber. Outdoor units must meet local code and clearance requirements.
Testimonials
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★★★★★
Absolutely transformed my backyard! The quality is fantastic, and everything feels sturdy and well-made. I’ve already had neighbours asking where I got it from!"
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★★★★★
"This is hands-down the best purchase I’ve made for my garden. Easy to assemble, looks beautiful, and has held up perfectly through rain and sun."
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★★★★★
My garden has never looked better! The design is stunning, and the materials are clearly built to last. Worth every penny."
