NORITZ EZ111 EZ Series 11.1 GPM Residential Natural Gas High Efficiency Indoor/Outdoor Tankless Water Heater 25-Year Warranty

Item # 313662528 | NORITZ Part # EZ111DV-NG | UPC Code 817000019099 | UNSPSC Code 40101825 | Catalog Page #525
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Product Overview

Engineered expressly for the North American residential market, the NORITZ EZ Series of high-efficiency, condensing tankless water heaters are designed to cut installation time and cost when replacing larger storage tank units. The ENERGY STAR-rated EZ models have top mounted connections, which provide installers with a wider range of tankless options. Key features of the all new EZ Series heaters include a built-in non-return valve, high grade stainless steel heat exchangers, Steady BTU Mode, a maximum venting length of 65 ft. and a Uniform Energy Factor of 0.95. NORITZ is proud to lead the industry with a 25-year heat exchanger warranty. The EZ Series heaters are the best solution for an easy tankless installation.

  • Professional installation recommended
  • Equipped with 2 high grade stainless steel heat exchangers that are built to last
  • Common vent up to 2 EZ units with the built-in non-return valve, which allows for cost savings and eliminates the need to purchase external accessories
  • Features revolutionary steady BTU mode with its burner control, which allows for optimal temperature response in conditions of low temperature rise and/or low flow rates. reduces BTU output to less than 5,000 BTU
  • EZ units have a uniform energy factor (UEF) of 0.95, making it one of the most efficient units in the industry
  • Unmatched performance with the industry's best heat exchanger warranty of 25 years
  • Top hot and cold water connections allow for an easy tankless for tank replacement
  • Heat exchangers have a greater resistance to corrosion and scale buildup than other materials, thereby boosting system life
  • ENERGY STAR rated natural gas tankless water heater
  • Optimizes the perfect air/fuel ratio based on demand for better efficiency with less moving parts
  • Maximum venting length of 65 ft.
  • Versatile venting configuration options include: outdoor vent, single vent, direct vent and 2 in./3 in. flex vent
  • Vent with 2 in. or 3 in. schedule 40 PVC/CPVC, flexible PP vent materials
  • Can be installed outdoors with vent cap (VC-6-1), sold separately.
  • Significantly reduces carbon emissions
  • Maximize your hot water usage by connecting 2 EZ units, the QC-2 quick connect cord can double hot water output (sold separately)
  • Wifi compatible - NORITZ connect app is compatible with EZ units, allowing for wireless remote control of heater functions and diagnostic/maintenance reminders. Requires NWC-Adapter (sold separately)
  • Manufactured in Japan

Proposition 65 Information

Prop65 Warning Icon WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the state of California to cause cancer and birth defects or other reproductive harm. for more information go to


Certifications and Listings
AHRI Certified, CSA Certified, CSA Listed, Energy Star, NSF Certified
Finish Family
Silver Metallic
Fuel Type
Indoor, Indoor & Outdoor, Outdoor
Pack Size
Product Depth (in.)
Product Height (in.)
Product Weight (lb.)
Product Width (in.)
Total BTU
Vent Type
Single Wall