The Noritz NRCR111-DV-NG 11.1 GPM 199,900 BTU Natural Gas Tankless Water Heater with Integrated Recirculation Pump delivers endless hot water while helping reduce energy costs with an ultra-high 0.98 UEF Energy StarĀ® certified condensing design. Unlike a traditional tank water heater that stores a limited supply of hot water, the NRCR111 heats water only when you need it while its built-in recirculation pump helps keep hot water closer to fixtures, reducing wait times and water waste.
Designed for residential applications, the NRCR111-DV-NG combines high-efficiency tankless performance with advanced recirculation technology in a compact design. With powerful 199,900 BTU performance, up to 11.1 GPM of hot water delivery, indoor or outdoor installation flexibility, and integrated whole-home recirculation capability, this unit provides reliable hot water comfort while helping improve energy efficiency and reduce water waste.
Product Features:
- 199,900 BTU Input: Provides powerful natural gas heating capacity to support continuous hot water delivery for larger homes and higher hot water demands.
- Up to 11.1 GPM Flow Rate: Helps supply hot water to multiple fixtures, such as showers, sinks, bathtubs, and appliances, depending on your home's conditions and hot water demand.
- Integrated Recirculation Pump: Built-in recirculation technology helps deliver hot water faster by keeping hot water moving through the system, reducing wait times and minimizing water waste.
- Condensing Tankless Design: High-efficiency technology helps capture more heat from the combustion process, reducing wasted energy and improving overall efficiency.
- 0.98 UEF Energy StarĀ® Certified: Delivers outstanding energy efficiency to help lower utility costs while providing dependable hot water performance.
- Indoor or Outdoor Installation: Flexible installation options allow the unit to be installed indoors with approved venting or outdoors with the correct outdoor configuration and accessories.
- Dedicated Recirculation Capability: Supports recirculation system configurations to provide faster hot water delivery throughout the home.
- Wi-Fi Capable: Compatible with optional Noritz accessories for remote monitoring and control capabilities.
What Is an Isolation Valve Kit?
An isolation valve kit is an important accessory used during tankless water heater installation. These valves connect to the hot and cold water lines and allow the water heater to be shut off, serviced, flushed, or descaled without turning off water to the entire home.
Isolation valves are especially important for tankless water heaters because regular maintenance helps protect performance and efficiency. Over time, mineral buildup can collect inside the heat exchanger, especially in areas with hard water. Isolation valves make it much easier for a plumber or homeowner to flush the system and help extend the life of the unit.
Short vs. Long Isolation Valve Kit
For this Noritz NRCR111-DV-NG tankless water heater, you only need to select one isolation valve kit based on your installation application.
- IK-WV-200-5-TH-S Short Isolation Valve Kit: A shorter valve kit designed for installations where space is limited or a more compact connection is preferred.
- IK-WV-200-5-TH-L Long Isolation Valve Kit: A longer valve kit designed for installations where additional clearance or easier service access is needed.
Both valve kits include 3/4" threaded isolation valves and a lead-free male pressure relief valve. The correct choice depends on available space, piping layout, and installer preference.
Understanding Tankless Water Heater Sizing
Unlike traditional tank water heaters, tankless water heaters are sized by flow rate (GPM) and temperature rise, not by tank capacity. Flow rate is the amount of hot water the unit can produce each minute, while temperature rise is the difference between your desired hot water temperature and the temperature of the incoming ground water.
When sizing a tankless water heater, always use your winter ground water temperature, as this is when the incoming water is coldest and requires the most heating. The colder the incoming water, the lower the maximum flow rate the unit can produce.
For example, if your desired water temperature is 120Ā°F and your winter ground water temperature is 55Ā°F, the required temperature rise is:
120Ā°F - 55Ā°F = 65Ā°F Temperature Rise
Using the Flow Rate Chart in the product images to determine how much hot water can be produced at your required temperature rise. The GPM is approximately 6.0 based on the chart on the NRCR111 at a 65Ā°F temperature rise, and a standard shower takes approximately 2 GPM. This means you can comfortably run up to 3 showers at the same time under these conditions.
Warranty
This product includes a manufacturerās limited warranty, including up to 15 years on the heat exchanger, 5 years on parts, and 1 year reasonable labor coverage for qualifying installations. Always verify fuel type, venting configuration, electrical requirements, water quality, required accessories, and local plumbing and mechanical codes prior to installation.
