Noritz EZ Series Pro 11.1 or Noritz 7.5 GPM Outdoor Natural? Which Noritz Model to Buy
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You are deciding between the noritz ez series pro 11 1 vs 7 5 gpm outdoor natural. Both units run on natural gas and deliver 199,000 BTU of heating power. The main difference lies in capacity and placement. One model offers higher flow for larger homes and fits indoor or outdoor spots. The other provides a steady 7.5 GPM output and is built strictly for outdoor use. You should check which specs match your home’s hot water needs.
Key differences
| Aspect | Noritz EZ Series Pro 11.1 GPM Natural Gas Heater | Noritz 7.5 GPM Outdoor Natural Gas Water Heater |
|---|---|---|
| Flow Rate | 11.1 GPM | 7.5 GPM |
| Installation Location | Indoor/Outdoor | Outdoor only |
| Voltage | 120 V | not listed |
| Dimensions | 11.8 x 18.1 x 26.1 in | not listed |
Which one should you choose?
Choose Noritz EZ Series Pro 11.1 GPM Natural Gas Heater if
- You need a higher flow rate of 11.1 GPM for multiple simultaneous uses.
- You want the flexibility to install the unit indoors or outdoors.
- You require a 120 V electrical connection for operation.
Choose Noritz 7.5 GPM Outdoor Natural Gas Water Heater if
- You have a smaller household needing a 7.5 GPM output.
- You are installing the heater in an outdoor location only.
- You prefer a unit with a self-diagnostic onboard computer system.
Verdict: Choose the EZ Series Pro if you need higher capacity and installation flexibility. The 7.5 GPM model is a solid choice for outdoor-only setups with modest hot water demands. Your decision depends on your peak flow needs and available installation space.
Noritz EZ Series Pro vs 7.5 GPM
Flow rate capacity
The Noritz EZ Series Pro delivers an 11.1 GPM flow rate, while the Noritz 7.5 GPM Outdoor Natural provides 7.5 GPM. Higher flow means you can run multiple showers simultaneously without pressure drops. If your household has three or more bathrooms, the 11.1 GPM model handles the demand better. The 7.5 GPM unit suits smaller homes or single-bath setups. Choose based on your peak usage needs. More gallons per minute equals greater convenience for large families.
Installation location
The Noritz EZ Series Pro supports both indoor and outdoor installation, offering flexibility for various home layouts. The Noritz 7.5 GPM Outdoor Natural is designed for outdoor use only. This restriction limits where you can place the unit. If you need to install the heater in a utility room or closet, the EZ Series Pro is the only viable option. The outdoor-only model requires an exterior wall with proper clearance. Consider your available space before deciding.
Voltage requirements
The Noritz EZ Series Pro operates on 120 Volts, which is standard for most residential electrical outlets. The specifications for the Noritz 7.5 GPM Outdoor Natural do not list a voltage rating in the provided data. You must check the manual or label for the exact electrical needs of the 7.5 GPM model. Standard 120V is convenient for many installations. If the 7.5 GPM unit requires different power, you may need an electrician. Verify electrical compatibility for your chosen location.
Physical dimensions
The Noritz EZ Series Pro measures 11.8 inches in length, 18.1 inches in width, and 26.1 inches in height. The Noritz 7.5 GPM Outdoor Natural does not list specific dimensions in the provided data. Knowing the exact size helps you plan mounting space and clearances. The EZ Series Pro is compact and fits in tight spots. Without dimensions for the 7.5 GPM model, you cannot compare footprint directly. Measure your installation area carefully to ensure fit.
Heating power
Both units provide nearly identical heating power. The Noritz EZ Series Pro delivers 199,900 BTU, and the Noritz 7.5 GPM Outdoor Natural delivers 199,000 BTU. This difference is negligible in performance. Both heaters can raise water temperature effectively for their respective flow rates. You get similar thermal output from either model. The choice depends on flow and installation needs, not heating strength. Both are powerful enough for standard residential use.
Fuel type
Both the Noritz EZ Series Pro and the Noritz 7.5 GPM Outdoor Natural run on natural gas. You need a natural gas line for either unit. There is no difference in fuel requirements. Ensure you have the correct gas supply and pressure for tankless heaters. Both models are compatible with standard residential natural gas infrastructure. You do not need to change your fuel source to switch between these two Noritz options.
Which Noritz Tankless Heater Fits You
Large household needing high flow
You need the 11.1 GPM flow rate to support multiple simultaneous uses. This unit handles higher demand without dropping pressure. The 199,900 BTU output ensures consistent hot water. You can install it indoors or outdoors, offering placement flexibility for your home layout.
Budget conscious small home owner
You require a dedicated outdoor unit with 7.5 GPM capacity. It delivers 199,000 BTU of heating power efficiently. The self-diagnostic computer helps maintain performance. You save on venting costs since no venting is required for outdoor installation. This model suits smaller households well.
Installer wanting compact indoor option
You appreciate the indoor or outdoor versatility of the EZ Series Pro. Its compact dimensions fit tight spaces easily. The 120-volt operation simplifies electrical connections. You get reliable performance with a 11.1 GPM flow rate. This unit offers flexibility for various installation scenarios in residential settings.
The products compared
Noritz EZ Series Pro 11.1 GPM Natural Gas Heater
Best for: high-flow outdoor natural gas needs
- 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 of hot water using natural gas. It produces 199,900 BTU and runs on 120 volts. The unit measures 11.8 x 18.1 x 26.1 inches and weighs 77.2 pounds. You can install it indoors or outdoors. This high-flow model suits large households needing simultaneous hot water access.
Pros
- 11.1 GPM flow rate for high demand
- 199,900 BTU heating capacity
- Indoor and outdoor installation options
- Compact 11.8 inch depth
Cons
- Heavier build at 77.2 pounds
- Requires 120-volt electrical connection
- Uses natural gas only
Good fit if
- You need high flow rates for multiple bathrooms
- You have an outdoor space for installation
- You want a compact unit with deep mounting
Skip if
- You require propane fuel compatibility
- You need a lighter unit for easy mounting
- You prefer a lower flow rate model
Verdict: Noritz EZ Series Pro 11.1 GPM provides substantial hot water capacity for busy homes. You should choose this model if you prioritize flow rate over compact weight.
Noritz 7.5 GPM Outdoor Natural Gas Water Heater
Best for: outdoor homes needing vent-free hot water
- Fuel Type
- Natural Gas
- Flow Rate
- 7.5 GPM
- BTU
- 199,000 BTU
- Installation Location
- Outdoor
View on Amazon: Noritz 7.5 GPM Outdoor Natural Gas Water Heater Affiliate link
This Noritz tankless water heater delivers 7.5 GPM of hot water using 199,000 BTUs of natural gas. It is designed strictly for outdoor installation, meaning you do not need to install any venting. The unit features a low .05 GPM activation flow rate, which helps conserve water when you are not actively using it. It also includes a self-diagnostic onboard computer system to help you monitor performance. The 84% thermal efficiency ensures you get good heat output for your energy input.
Pros
- 7.5 GPM flow rate for strong hot water supply
- 199,000 BTU heating capacity
- No venting required for outdoor use
- Low .05 GPM activation flow rate
- Self-diagnostic onboard computer system
Cons
- Limited to 7.5 GPM compared to 11.1 GPM models
- Outdoor installation only
- Beige color may not match all exterior aesthetics
Good fit if
- You need a dedicated outdoor water heater
- You want to avoid venting installation costs
- You prefer natural gas fuel
Skip if
- You need indoor installation
- You require more than 7.5 GPM flow
- You want a vented system
Verdict: Noritz NR98-OD NG 7.5 GPM Outdoor is a solid choice for homeowners who want a vent-free outdoor solution with reliable diagnostics.
Specifications side by side
| Spec | Noritz EZ Series Pro 11.1 GPM Natural Gas Heater | Noritz 7.5 GPM Outdoor Natural Gas Water Heater |
|---|---|---|
| Fuel Type | Natural Gas | Natural Gas |
| Flow Rate | 11.1 GPM | 7.5 GPM |
| BTU | 199,900 BTU | 199,000 BTU |
| Installation Location | Indoor/Outdoor | Outdoor |
| Voltage | 120 V | not stated |
| Dimensions | 11.8 x 18.1 x 26.1 in | not stated |
| Weight | 77.2 pounds | not stated |
| Color | Silver | Beige |
| Model | GQ-C3261WX-FF US NG | NR98-OD NG |
| Size | not stated | 7.5 GPM |
Frequently asked questions
Is the Noritz EZ Series Pro suitable for outdoor installation?
Yes, the Noritz EZ Series Pro is designed for outdoor placement. Its build supports exterior environments without requiring additional weatherproofing enclosures. You can mount it on an external wall. This keeps indoor space free for other uses. The unit is compact, measuring 18.1 inches wide and 26.1 inches tall. It fits well in tight outdoor areas.
Does the Noritz 7.5 GPM Outdoor Natural require venting?
No, this model is vent-free. It is designed to operate without traditional vent pipes. This simplifies installation in outdoor settings. You do not need to run flue gases through walls or roofs. The unit draws air from the outside and expels it safely. This feature makes it a flexible choice for various home layouts.
How heavy is the Noritz EZ Series Pro unit?
The Noritz EZ Series Pro weighs 77.2 pounds. This weight is manageable for most standard mounting brackets. You should ensure your wall can support this load. The unit is made of durable materials to withstand outdoor conditions. Its silver finish helps it blend with exterior siding. Check your mounting hardware to handle this mass securely.
What is the difference in physical size between the two models?
The Noritz EZ Series Pro has specific dimensions: 18.1 inches wide, 26.1 inches tall, and 11.8 inches long. The 7.5 GPM model is listed in beige but lacks detailed dimensional data in the provided specs. You should measure your available space carefully. The EZ Series Pro offers a compact footprint for its high output. Verify clearances for both intake and exhaust areas.
Can I use natural gas with the Noritz 7.5 GPM Outdoor Natural?
Yes, this model runs on natural gas. It is optimized for standard residential gas lines. You do not need to convert the unit for propane. The system delivers 7.5 gallons per minute of hot water. This flow rate is sufficient for many single-family homes. Ensure your gas line pressure meets the manufacturer's requirements for optimal performance.
Which model offers better hot water capacity for large families?
The Noritz EZ Series Pro offers higher capacity with an 11.1 GPM flow rate. This supports multiple simultaneous uses like showers and appliances. The 7.5 GPM model provides less volume, which may limit concurrent usage. If your household has high demand, the EZ Series Pro is the better choice. It maintains consistent temperature under heavy load.