NR981 Series Residential Tankless Water Heaters

Unlike with a conventional tank-type water heater, the hot water is always there when you need it with a tankless water heater. With a tankless water heater, water is heated as it passes through the unit so you will always be using a fresh supply of water. A Noritz Tankless water heater provides a continuous flow of hot water, so there’s no need to suffer through a cold shower if you’re the last one out of bed, and there will always be plenty of hot water instantly ready for other uses when you’re done.
  • Designed for mid-sized homes with up to 3 showers, this space efficient, wall-hung  unit will help assure you never run out of hot water
  • Indoor/outdoor models (SV) include a power cord and may be installed either inside or outside of the home and are designed to be vented horizontally or vertically
  • Outdoor units (OD) are designed for installation outside of the home and require no additional venting as a horizontal vent is built right into the unit
  • Designed to accept a quick-connect cable, allowing two units to link together to satisfy higher flow demands
  • Dual flame burner minimizes temperature fluctuations
  • Fully modulating design and automatic air regulator monitors internal temperature and adjusts burner according to need, providing accurate and efficient response to hot water demands
  • Direct ignition means no standby pilot light to waste energy
  • Commercial grade heat exchanger for superior durability
  • Built in freeze protection for additional peace of mind
  • Thermal fuse offers automatic overheat protection
  • Self-diagnostic onboard computer system, combined with the included digital remote, provides ease of maintenance and temperature adjustment
  • Battery back-up compatible
  • Recirculation compatible

Noritz NR981 Tankless Water Heater Specifications:

  • Thermal efficiency: 84%
  • Flow rate: 0.5-9.8GPM – click for flow rate chart
  • Temperature settings: 100-180°F (14 options)
  • Gas connection: 3/4″ NPT
  • Water connections: 3/4″ NPT
  • Water pressure min: 15psi, max: 150psi
  • Gas input min: 11,000 BTU, max: 199,900 BTU
  • Gas supply pressure: NG 4.0″ – 10.5″, LP 8.0″ – 14.0″
  • Weight: 47 lbs
  • Air supply/exhaust: Power vented
  • Ignition: electronic (no pilot light)
  • Electrical supply: 120V (60Hz)
  • Actual electrical consumption in Watts
  • SV Model: NG: 62W, LP: 75W, freeze protection: 145W
  • OD Model: NG: 64W, LP: 77W, freeze protection: 145W
  • Actual electrical draw in Amps: less than 2 Amps
  • Operation: 0.6 Amp
  • Standby mode: 0.06 Amp
  • Freeze prevention: 1.3 Amps
  • Dimensions: 23.6″h x 13.8″w x 9.4″d
  • Uses 4″ Category III stainless steel venting

Call Bill Metzger Plumbing for all your Noritz – NR981 Needs at (949) 492-3558


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