Noritz EZ Series Pro 11.1 GPM 199000 BTU Indoor or Outdoor Natural Gas or Liquid Propane Tankless Water Heater – EZ111DV – GQ-C3261WX-FF US

Designed for delivering exceptional hot water performance, Noritz’ new EZ Series GQ-C61 (GQ-C3261WX-FF US) line brings even more features and benefits to their most popular tankless products. This includes features such as improved efficiency, Bluetooth® connectivity, and more, making their flagship heaters the first choice for homeowners and businesses looking for faster, reliable hot water delivery.

Key Features

Bluetooth® Connectivity

All GQ-C61 models come equipped with Bluetooth® connectivity, providing users with more control of heater functions including pump timers, temperature settings, and more.

Greater Efficiency

The new EZ Series GQ-C61 line offers an improved 0.98 UEF RATING, making it even more efficient than previous models and generating less harmful emissions.

Available in One Gas Type

Natural Gas (NG) is the default gas type on all GQ-C61 models but if liquid propane (LP) is preferred, all units come with a gas conversion kit that helps to easily update your unit’s gas type.

Built-In Remote

All GQ-C61 EZ models now come with a built-in remote which can displays your heater’s temperature, status, as well as error codes.

Installation Versatility

The EZ Series can adapt to any installation scenario, offering a variety of installation options for homeowners. Plus, the new latch cover design now provides quick and easy to access to internal parts and components.

Product Details

• Multiple Gas Types
• Industry leading 0.98 UEF efficiency
• Bluetooth Connectivity
• Built-in Display
• New Latch Cover Design
• Top Mounted Water Connections
• Versatile Venting Options: Direct Vent, Single Vent, Outdoor, Flex Vent, and No Roof Kit compatible
• Dual High Grade Stainless Steel Exchangers
• Steady BTU Mode
• 25 Year Warranty

Noritz has been a leader in tankless water heater technology since 1951, offering high-efficiency water heaters, boilers, and circulating pumps for residential and commercial use.

Additional Information

• Brand: Noritz
• MPN: GQ-C3261WX-FF US
• Series: EZ Series
• Residential or Commercial: Residential
• Installation Location: Indoor & Outdoor
• Exhaust Type: 2-pipe Direct Vent (SV convertible), Flex and Outdoor with accessories
• Max Flow Rate: 11.1 GPM
• Temperature Range: 100-140°F
• Freeze Protection Rating (Indoor Temp): -30°F
• Freeze Protection Rating (Outdoor Temp): -4°F
• Recirculation Compatible: Yes
• Power Supply: 120 VAC (60 Hz)

Want to learn more about this tankless water heater? Read about it in our article on Pros and Cons of Tankless Water Heaters at our Resource Center.

EZ Series GQ-C61 FAQ

How many fixtures can the Noritz EZ111DV tankless water heater run at once?

The Noritz EZ111DV can provide up to 8.7 GPM at a 45°F temperature rise, making it suitable for homes where multiple fixtures may require hot water at the same time. The actual number of fixtures it can serve simultaneously depends on the flow rate of each fixture, incoming water temperature, and the desired hot water temperature.

Is the Noritz GQ-C61 EZ111DV a good size for a large home?

This Noritz unit is a high-capacity residential tankless water heater with a maximum input of 199,900 BTU and a maximum flow rate of 11.1 GPM under specified conditions. Whether it’s appropriately sized for a particular home depends on the number of fixtures that may operate simultaneously, the local groundwater temperature, and the required temperature rise.

For additional assistance sizing a tankless hot water heater, contact the Plumbing Deals team through the chat feature, email at contact@plumbingdeals.com, or call at 888-682-5956.

What type of gas does the EZ Series GQ-C61 use?

The Noritz EZ111DV model referenced here is configured for natural gas (NG) and has a maximum gas input of 199,900 BTU. It should be connected to a properly sized gas supply in accordance with the manufacturer’s installation requirements and applicable local codes. This model should not be connected to a propane supply unless it has been specifically converted and approved for that fuel type according to Noritz requirements.

Does the Noritz EZ111DV require special venting?

Yes. The Noritz EZ111DV is a direct-vent, indoor tankless water heater that requires a compatible venting system installed according to Noritz’s specifications. Proper vent materials, termination, clearances, and installation practices are important for safe operation and reliable performance. Because venting requirements can vary based on the installation layout, a qualified professional should verify the complete venting configuration before installation.

What water temperature should I set my GQ-C3261WX-FF tankless water heater to?

The ideal temperature depends on how the hot water will be used, household preferences, and applicable safety requirements. Many residential applications use a setting around 120°F to balance comfort, energy efficiency, and scald prevention. If the water heater will supply fixtures with different temperature requirements or serve a larger domestic hot water system, a qualified plumbing professional can help determine the appropriate setting and whether additional temperature controls are needed.