6 Best Alternatives to the Noritz EZ Series Pro 11.1 (2026)
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The Noritz EZ Series Pro 11.1 delivers high flow for busy households, but you might seek noritz ez series pro 11 1 alternatives for different needs. Its 11.1 GPM flow rate and 199,900 BTU output handle high demand in a compact frame. However, you may prefer a smaller footprint, lower cost, or specific smart features that this model does not emphasize. Some buyers also look for brands with different warranty terms or indoor installation capabilities.
This list of 6 options focuses on units with overlapping specifications, such as natural gas fuel and outdoor suitability. We selected these alternatives because they share core performance traits with the Noritz EZ Series Pro. You can compare flow rates, dimensions, and BTU outputs to find a better fit for your home. Each option offers distinct advantages, from precise temperature control to robust construction. Review the specs to determine which unit aligns with your specific hot water requirements and space constraints.
Our top pick: Noritz EZ Series Pro 11.1 GPM Natural Gas Heater.
How alternatives differ from Noritz
Noritz 9.8 GPM Natural Gas Tankless Water Heater
The Noritz NR98SVNG offers a slightly lower 7.5 GPM flow rate compared to the EZ Series Pro’s 11.1 GPM. It features a durable copper heat exchanger, which may appeal to users prioritizing long-term component integrity. This unit is lighter at 54 pounds and narrower at 10.6 inches wide, making it easier to fit in tight outdoor spaces. You lose some peak flow capacity, but gain a robust build focused on durability. It suits homes that value construction quality over maximum simultaneous fixture usage. If your household demand is moderate rather than high, this model provides reliable performance in a compact footprint without the bulk of higher-output units.
Ranein 8.5 GPM Outdoor Natural Gas Water Heater
The Ranein RHO19K-NG lists a 5.0 GPM flow rate in its attributes, which is significantly lower than the Noritz EZ Series Pro’s 11.1 GPM. Despite this, it maintains a compact design at 15.1 inches square and weighs only 44 pounds. It is designed for outdoor installation and natural gas use. You give up substantial flow capacity for a smaller, lighter unit that fits easily in constrained areas. This choice works for smaller households or those with lower hot water demands who need a reliable outdoor solution. It is not suitable for high-demand scenarios requiring multiple simultaneous showers. The trade-off favors space-saving installation over high-volume water delivery.
APUS 190,000 BTU Outdoor Natural Gas Water Heater
The APUS AP-AWH-W26NG matches the Noritz EZ Series Pro closely with 190,000 BTU output, though it does not specify a GPM flow rate in the provided data. It is extremely narrow at 6.54 inches wide and weighs just 42.5 pounds, making it the most compact option here. It includes smart app management, a feature not listed for the Noritz model. You gain precise temperature control and remote monitoring capabilities. However, it lacks the high flow rate of the Noritz unit. This heater is ideal for users who prioritize smart connectivity and space efficiency over maximum hot water output. It fits well in outdoor settings where width is a constraint.
Rinnai 7.6 GPM Outdoor Natural Gas Water Heater
The Rinnai REU-VE2737WD-US-N provides a 7.6 GPM flow rate, which is lower than the Noritz EZ Series Pro’s 11.1 GPM. It weighs 53.3 pounds and measures 14.1 inches wide. This model is designed for outdoor use and features non-condensing venting. You sacrifice flow capacity for a well-established brand reputation and reliable performance in moderate demand scenarios. It is a solid choice for households that do not require the highest possible flow rates. The unit offers a balance of size and output, fitting comfortably in most outdoor installations. If you need dependable hot water for a standard family without extreme simultaneous usage, this model is a practical alternative.
Westinghouse 8.1 GPM Outdoor Natural Gas Heater
The Westinghouse HS180A0G-NG offers an 8.1 GPM flow rate, falling short of the Noritz EZ Series Pro’s 11.1 GPM. It weighs 42 pounds and is 17.1 inches square. This unit is designed for outdoor installation and emphasizes precise temperature stability. You give up peak flow capacity for consistent water temperature control and certified outdoor safety features. It suits buyers who prioritize temperature precision over maximum volume. The model is suitable for homes needing moderate hot water with stable performance. If your main concern is avoiding temperature fluctuations rather than maximizing simultaneous shower count, this heater provides a reliable outdoor solution with a focus on comfort and safety.
Rheem RTG 9.5 GPM Outdoor Natural Gas Tankless Heater
The Rheem RTG-95XLN-3 delivers a 9.5 GPM flow rate, which is lower than the Noritz EZ Series Pro’s 11.1 GPM. It weighs only 39.3 pounds and is 13.5 inches wide, making it one of the lighter and narrower options. It includes WiFi connectivity for remote management, a feature absent in the Noritz model. You trade some flow capacity for smart home integration and a compact, lightweight design. This unit is ideal for large families who need high flow but also value remote monitoring and easy installation. It is designed for outdoor use with non-condensing venting. If you want a balance of high output and smart features, this model is a strong contender.
Quick picks
Our 7 picks
Noritz EZ Series Pro 11.1 GPM Natural Gas Heater
Best for: High-demand households needing max flow
- Fuel Type
- Natural Gas
- Flow Rate
- 11.1 GPM
- BTU
- 199,900 BTU
- Installation Location
- Indoor/Outdoor
- Voltage
- 120 V
- Dimensions
- 11.8 x 18.1 x 26.1 in
View on Amazon: Noritz EZ Series Pro 11.1 GPM Natural Gas Heater Affiliate link
The Noritz EZ Series Pro delivers 11.1 GPM at 199,900 BTU using natural gas. Its compact 11.8 x 18.1 x 26.1 inch frame fits tight spaces. You get reliable indoor or outdoor installation with a 120-volt electrical connection. This unit suits large households needing high flow rates without the bulk of larger commercial systems.
Pros
- 11.1 GPM flow rate for multiple simultaneous uses
- 199,900 BTU heating capacity
- Compact 11.8 x 18.1 x 26.1 inch dimensions
- Indoor and outdoor installation flexibility
Cons
- Heavier at 77.2 pounds than many competitors
- Requires 120-volt electrical connection
- Limited to natural gas fuel type
Good fit if
- You need high flow for large homes
- You have space for a 77.2 pound unit
- You want indoor or outdoor flexibility
Skip if
- You prefer propane fuel
- You need a lighter unit under 70 pounds
- You want a 240-volt only system
Verdict: Noritz EZ Series Pro 11.1 offers top-tier flow for busy households. You get reliable performance in a compact frame, ideal for spaces where size matters but output cannot be compromised.
Noritz 9.8 GPM Natural Gas Tankless Water Heater
Best for: High-flow needs with durable copper internals
- Fuel Type
- Natural Gas
- Flow Rate
- 9.8 GPM
- Installation Location
- Indoor/Outdoor
- Dimensions
- 13.8 × 10.6 × 23.6 inches
- Weight
- 54 pounds
View on Amazon: Noritz 9.8 GPM Natural Gas Tankless Water Heater Affiliate link
The Noritz NR98SVNG is a natural gas tankless water heater designed for both indoor and outdoor installation. It delivers a flow rate of up to 9.8 GPM, though rated at 7.5 GPM in outdoor settings. The unit features a commercial-grade copper heat exchanger with piping that is 25% thicker than standard models. It includes a remote thermostat and a 6-foot power cord. This model suits households needing reliable hot water delivery with durable internal components.
Pros
- Flow rate up to 9.8 GPM
- Commercial-grade copper heat exchanger
- 25% thicker piping than standard models
- Remote thermostat included
- Indoor and outdoor installation options
Cons
- Rated flow rate drops to 7.5 GPM for outdoor use
- Weighs 54 pounds, requiring sturdy mounting
- No wireless app control mentioned in specifications
Good fit if
- You need a high-flow unit for multiple bathrooms
- You want a durable copper heat exchanger
- You require indoor or outdoor flexibility
Skip if
- You need a flow rate above 9.8 GPM
- You prefer a lighter unit under 50 pounds
- You require smart home integration features
Verdict: Noritz NR98SVNG 7.5 GPM Indoor/Outdoor Heater offers robust performance with its thick copper heat exchanger and high flow capacity. It fits homes that prioritize durable construction and versatile installation locations over smart connectivity.
Ranein 8.5 GPM Outdoor Natural Gas Water Heater
Best for: High-flow outdoor needs in compact spaces
- Fuel Type
- Natural Gas
- Flow Rate
- 8.5 GPM
- BTU
- 190,000 BTU
- Installation Location
- Outdoor
- Dimensions
- 15.1 × 15.1 × 24.3 inches
- Weight
- 44 pounds
View on Amazon: Ranein 8.5 GPM Outdoor Natural Gas Water Heater Affiliate link
The Ranein RHO19K-NG delivers 8.5 GPM at 190,000 BTU for outdoor use. Its compact 24.3 x 15.1 x 8.1-inch frame fits tight spaces. The fan sits underneath to prevent smoke backflow and adjust to wind pressure. Anti-freeze protection guards internal components. It supports 4-6 outlets. This unit suits families needing high flow without tank storage.
Pros
- 8.5 GPM flow rate for multiple simultaneous outlets
- 190,000 BTU/hr heating capacity
- Under-mounted fan reduces smoke backflow risk
- Anti-freeze protection for cold weather safety
- Compact dimensions save outdoor wall space
Cons
- Not recommended for altitudes over 2,000 feet
- Requires manual draining of pressure relief valve in cold weather if unused
- No smart home or app connectivity listed
Good fit if
- You need high flow for 4-6 outlets outdoors
- You have limited wall space for installation
- You want anti-freeze protection for winter use
Skip if
- You live above 2,000 feet elevation
- You require indoor installation
- You need smart app control features
Verdict: Ranein 8.5 GPM Natural Gas Outdoor Heater provides strong performance for large households. It fits well for users needing high flow in compact outdoor spaces. Avoid it if you are at high altitude or need smart features.
APUS 190,000 BTU Outdoor Natural Gas Water Heater
Best for: outdoor whole-home hot water
- Fuel Type
- Natural Gas
- Flow Rate
- 8.1 GPM
- BTU
- 190,000 BTU
- Installation Location
- Outdoor
- Voltage
- 120V AC
- Temperature Control
- 95°F–149°F, ±1°F
View on Amazon: APUS 190,000 BTU Outdoor Natural Gas Water Heater Affiliate link
This outdoor unit delivers 190,000 BTU and 8.1 GPM of hot water for whole-house use. It features a compact 22.48 x 15.51 x 6.54-inch design and connects to standard 120V AC power. The system maintains temperature accuracy within ±1°F and supports 5-6 simultaneous outlets. You get smart control via the Tuya app and a 2-year full warranty on all components.
Pros
- High 190,000 BTU output for strong flow
- Precise ±1°F temperature control accuracy
- Low 0.79 GPM minimum flow requirement
- Smart control via Tuya app
- 2-year full warranty on components
Cons
- Outdoor installation only
- 2-year warranty is shorter than industry standard
- Requires specific Tuya app for smart features
Good fit if
- You need a budget-friendly outdoor unit
- You want precise temperature stability
- You have weak water pressure
Skip if
- You need indoor installation
- You prefer a longer warranty period
- You want native remote control without an app
Verdict: APUS 190k BTU Natural Gas Tankless Heater offers solid performance for outdoor use with precise temperature control. It suits buyers who prioritize smart app management and low minimum flow requirements over extended warranty coverage.
Rinnai 7.6 GPM Outdoor Natural Gas Water Heater
Best for: outdoor residential use with moderate hot water demand
- Fuel Type
- Natural Gas
- Flow Rate
- 9.8 GPM
- BTU
- 199k BTU
- Installation Location
- Outdoor
- Dimensions
- 24.6 x 14.1 x 10.8 in
- Venting Type
- Non-Condensing
View on Amazon: Rinnai 7.6 GPM Outdoor Natural Gas Water Heater Affiliate link
The Rinnai RE199eN is a non-condensing natural gas water heater designed for outdoor installation. It delivers 7.6 gallons per minute, allowing you to run up to six fixtures simultaneously. The unit measures 24.6 by 14.1 by 10.8 inches and weighs 53.3 pounds. It features an LED screen for error codes and service reminders. This model suits households needing reliable hot water in moderate climates without condensing venting requirements.
Pros
- 7.6 GPM flow rate supports multiple simultaneous uses
- Compact outdoor footprint fits tight spaces
- 15-year heat exchanger warranty upon registration
- LED display shows error codes and maintenance alerts
Cons
- 7.6 GPM is lower than the 9.5 GPM Rheem option
- WiFi control requires a separate module
- Non-condensing design limits efficiency in some regions
Good fit if
- You need a compact outdoor unit for a single family home
- You want a trusted brand with strong warranty coverage
- You are installing in a climate where non-condensing is suitable
Skip if
- You require higher flow rates for large homes
- You want built-in WiFi connectivity without extra parts
- You are installing indoors without proper venting
Verdict: Rinnai RE199eN 7.6 GPM Outdoor Unit offers dependable performance for moderate usage. It fits well in outdoor spaces where compact size and brand reliability matter more than maximum flow rate.
Westinghouse 8.1 GPM Outdoor Natural Gas Heater
Best for: Outdoor installations needing precise temperature stability
- Fuel Type
- Natural Gas
- Flow Rate
- 8.1 GPM
- BTU
- 180,000 BTU
- Installation Location
- Outdoor
- Voltage
- 120V AC
- Temperature Control
- 95–158°F, ±1°F
View on Amazon: Westinghouse 8.1 GPM Outdoor Natural Gas Heater Affiliate link
This outdoor unit delivers 8.1 GPM and 180,000 BTU for whole-home hot water. It uses advanced self-modulating technology to keep temperature changes within ±1°F. The compact design saves space and includes freeze protection for year-round outdoor use. You get reliable performance for 3–5 fixtures at once. It requires standard 120V AC power and 3/4" NPT plumbing for installation.
Pros
- 8.1 GPM flow rate supports multiple simultaneous fixtures
- 180,000 BTU heating capacity for consistent hot water
- ±1°F temperature stability reduces sudden fluctuations
- CSA certified for safety and outdoor durability
Cons
- Lower flow rate than the 9.5 GPM Rheem on this list
- Shorter 2-year limited warranty compared to typical 5-year standards
- Requires 120V AC electrical connection for operation
Good fit if
- You need a CSA-certified unit for outdoor installation
- You want precise temperature control within ±1°F
- You have access to 120V AC power near the unit
Skip if
- You require a flow rate higher than 8.1 GPM
- You prefer a longer standard warranty period
- You are installing indoors without proper venting
Verdict: Westinghouse 8.1 GPM Outdoor Natural Gas Heater offers stable temperatures and outdoor durability for homes needing moderate flow. It fits buyers who prioritize precise temperature control and certified outdoor safety over maximum flow capacity.
Rheem RTG 9.5 GPM Outdoor Natural Gas Tankless Heater
Best for: Large families needing high flow outdoors
- Fuel Type
- Natural Gas
- Flow Rate
- 9.5 GPM
- BTU
- 199,900 BTU/hr
- Installation Location
- Outdoor
- Temperature Control
- ±1°F
- Certification
- CSA
View on Amazon: Rheem RTG 9.5 GPM Outdoor Natural Gas Tankless Heater Affiliate link
The Rheem RTG-95XLN delivers 9.5 GPM at 199,900 BTUs for whole-house use. It features a non-condensing design for outdoor installation and includes built-in freeze protection. The digital LED panel allows precise temperature adjustments within ±1°F. This unit is ideal for large families needing multiple simultaneous showers. It operates on natural gas and offers high efficiency compared to traditional tank heaters.
Pros
- 9.5 GPM flow rate supports 3-4 simultaneous showers
- 199,900 BTU/hr output for high performance
- Digital LED control with ±1°F precision
- Built-in freeze and flame failure protection
Cons
- Outdoor installation only; not suitable for indoor use
- Heavier build at 39.3 pounds requires sturdy mounting
- Non-condensing design may have lower efficiency than condensing models
Good fit if
- You need high flow for multiple bathrooms
- You have outdoor space for installation
- You want precise temperature control
Skip if
- You require indoor installation
- You need a compact unit under 10 inches wide
- You prefer condensing technology for maximum efficiency
Verdict: Rheem RTG-95XLN 9.5 GPM Outdoor provides robust hot water for large households. It suits buyers who prioritize flow rate and outdoor durability over compact size or indoor versatility.
Specifications side by side
| Spec | Noritz EZ Series Pro 11.1 GPM Natural Gas Heater | Noritz 9.8 GPM Natural Gas Tankless Water Heater | Ranein 8.5 GPM Outdoor Natural Gas Water Heater | APUS 190,000 BTU Outdoor Natural Gas Water Heater | Rinnai 7.6 GPM Outdoor Natural Gas Water Heater | Westinghouse 8.1 GPM Outdoor Natural Gas Heater | Rheem RTG 9.5 GPM Outdoor Natural Gas Tankless Heater |
|---|---|---|---|---|---|---|---|
| Fuel Type | Natural Gas | Natural Gas | Natural Gas | Natural Gas | Natural Gas | Natural Gas | Natural Gas |
| Flow Rate | 11.1 GPM | 9.8 GPM | 8.5 GPM | 8.1 GPM | 9.8 GPM | 8.1 GPM | 9.5 GPM |
| BTU | 199,900 BTU | not stated | 190,000 BTU | 190,000 BTU | 199k BTU | 180,000 BTU | 199,900 BTU/hr |
| Installation Location | Indoor/Outdoor | Indoor/Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor |
| Voltage | 120 V | not stated | not stated | 120V AC | not stated | 120V AC | not stated |
| Temperature Control | not stated | not stated | not stated | 95°F–149°F, ±1°F | not stated | 95–158°F, ±1°F | ±1°F |
| Certification | not stated | not stated | not stated | not stated | not stated | CSA | CSA |
| Dimensions | 11.8 x 18.1 x 26.1 in | not stated | not stated | 22.48 × 15.51 × 6.54 in | 24.6 x 14.1 x 10.8 in | 26.8 x 17.1 x 17.1 inches | 20.8 x 13.5 x 9.4 inches |
| Use | not stated | not stated | not stated | not stated | not stated | Whole House | not stated |
| Venting Type | not stated | not stated | not stated | not stated | Non-Condensing | not stated | Non-Condensing |
| Features | not stated | not stated | not stated | not stated | not stated | not stated | WiFi |
| Weight | 77.2 pounds | 54 pounds | 44 pounds | 42.5 pounds | 53.3 pounds | 42 pounds | 39.3 pounds |
| Color | Silver | Beige | Gray-NG | Gray | Silver | Grey 81NO | Gray |
| Model | GQ-C3261WX-FF US NG | NR98SVNG | RHO19K-NG | AP-AWH-W26NG | REU-VE2737WD-US-N | HS180A0G-NG | RTG-95XLN-3 |
| Size | not stated | 9.375 inches | 8.5 GPM Outdoor | not stated | 9.8 GPM | not stated | 9.5 GPM (No WiFi) |
If your installation needs different capacity specifications, you can evaluate ez heat 1 alternatives to match your venting setup.
Frequently asked questions
Which alternative offers the highest flow rate for whole-home use?
The Noritz EZ Series Pro 11.1 leads with 11.1 GPM. If you seek alternatives, the Rheem RTG-95XLN provides 9.5 GPM. This makes it suitable for large families needing robust outdoor performance. The Ranein model offers 8.5 GPM, fitting high-flow needs in compact spaces. Choose based on your simultaneous fixture demands.
Can I install these units indoors like the Noritz NR98SVNG?
Most listed alternatives are designed for outdoor installation only. The Noritz NR98SVNG is a notable exception, rated for both indoor and outdoor use. The Noritz EZ Series Pro, Ranein, APUS, Rinnai, Westinghouse, and Rheem models are specified for outdoor locations. Check your local codes and the unit’s specific installation attributes before deciding.
Which model is the most compact for tight spaces?
The APUS 190,000 BTU heater is the most compact, measuring just 6.54 inches in width and length. The Rheem RTG-95XLN is also slim at 9.4 inches deep. The Noritz NR98SVNG is narrow at 10.6 inches wide. These dimensions help fit units into confined outdoor areas where space is limited.
Do any alternatives include smart home connectivity?
Yes, the Rheem RTG-95XLN includes WiFi features for remote management. The APUS model also supports smart app management for precise control. Other units in this list do not list connectivity features in their specifications. If remote monitoring is essential, these two options are your best choices among the alternatives.
How do the weights compare for mounting considerations?
The Noritz EZ Series Pro is the heaviest at 77.2 pounds. The Rinnai unit weighs 53.3 pounds, and the Noritz NR98SVNG weighs 54 pounds. Lighter options include the APUS at 42.5 pounds and the Westinghouse at 42 pounds. Ensure your mounting surface can support the specific weight of your chosen unit.
Which unit has the lowest minimum flow requirement?
The APUS model is noted for its low minimum flow requirements, making it efficient for homes with low usage. This allows the heater to activate even with minimal water demand. Other models prioritize higher flow rates for whole-home coverage. If you have low-flow fixtures, the APUS specification suits your needs best.