Noritz NRC98-DV-LP Residential Liquid Propane vs Noritz NR66ODLP Outdoor Tankless Water Heater: Spec Comparison
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You are looking at the noritz nrc98 dv lp residential liquid propane vs nr66odlp outdoor. Both units run on liquid propane and deliver endless hot water. The main difference is their intended use and power. The NRC98-DV-LP is a high-capacity indoor model. The NR66ODLP is built for outdoor installation with lower output. You need to match the unit to your space and hot water demand.
Key differences
| Aspect | Noritz 9.8 GPM Propane Tankless Water Heater | Noritz 6.6 GPM Outdoor Liquid Propane Tankless Heater |
|---|---|---|
| Flow Rate | 9.8 GPM | 6.6 GPM |
| BTU Output | 180,000 BTU | 140,000 BTU |
| Installation Location | Indoor | Outdoor |
| Weight | 65 pounds | 36 pounds |
| Dimensions | 24 x 8 x 9 inches | 26.6 x 17.6 x 10.7 inches |
Which one should you choose?
Choose Noritz 9.8 GPM Propane Tankless Water Heater if
- You need high flow for multiple bathrooms
- You are installing inside a home
- You want maximum heating power
Choose Noritz 6.6 GPM Outdoor Liquid Propane Tankless Heater if
- You have outdoor mounting space
- You need a lighter unit
- Your hot water demand is moderate
Verdict: The NRC98-DV-LP suits larger households needing high flow indoors. The NR66ODLP is better for outdoor setups with modest demand. Choose based on your location and usage needs.
Noritz Indoor vs Outdoor Specs
Flow rate capacity
The Noritz NRC98-DV-LP delivers 9.8 gallons per minute of hot water. This high flow rate supports multiple simultaneous uses in larger households. In contrast, the Noritz NR66ODLP provides 6.6 gallons per minute. This lower capacity suits smaller homes or single-station applications. You need more water volume for the NRC98-DV-LP to achieve its peak performance. The NR66ODLP is sufficient for basic needs but may struggle with high demand. Choose the NRC98-DV-LP if you require maximum hot water output for several fixtures at once.
Heating power
Power output determines how quickly water heats up. The NRC98-DV-LP features an 180,000 BTU burner. This high thermal input allows it to handle larger temperature rises. The NR66ODLP operates at 140,000 BTU. While still powerful, it has less heating potential than the residential model. Higher BTU ratings generally mean faster recovery of hot water during heavy use. The NRC98-DV-LP offers superior heating power for demanding scenarios. The NR66ODLP provides adequate heat for standard outdoor or light indoor use.
Installation location
Location compatibility is a major differentiator. The NRC98-DV-LP is designed for indoor residential installation. It requires proper venting and clearance within a building structure. The NR66ODLP is explicitly rated for outdoor installation. Its construction withstands external weather conditions without additional housing. You must install the NRC98-DV-LP inside a protected space. The NR66ODLP can be mounted on an exterior wall. This makes the outdoor model ideal for patios, pools, or remote locations.
Electrical requirements
Electrical needs vary significantly between these two units. The NRC98-DV-LP requires a 120-volt power source for its controls and ignition. You must ensure your home provides this standard voltage. The NR66ODLP data does not specify a voltage requirement. It may have different electrical needs or rely on battery power. You should verify the electrical specs for the outdoor model before wiring. The indoor model has a clear and standard 120-volt requirement. This simplifies integration into typical residential electrical systems.
Physical size and weight
Dimensions affect where you can mount each unit. The NRC98-DV-LP measures 24 inches in length, 8 inches in width, and 9 inches in height. It weighs 65 pounds. The NR66ODLP measures 26.6 inches in height, 17.6 inches in width, and 10.7 inches in length. It weighs only 36 pounds. The indoor model is taller but narrower. The outdoor unit is wider and heavier in profile but lighter overall. Consider your mounting space and structural support. The lighter outdoor unit may be easier to install on exterior walls.
Which Noritz Tankless Model Fits You
Large household needing high flow
The NRC98-DV-LP delivers 9.8 GPM. This supports multiple simultaneous uses. Its 180,000 BTU output ensures consistent hot water. This unit suits larger families or homes with high demand. Choose this model for maximum capacity and performance in residential settings.
Outdoor installation requiring compact size
The NR66ODLP is designed for outdoor use. It offers 6.6 GPM flow. Its compact dimensions fit tight spaces. This unit is ideal for patios or exterior walls. Select this model for outdoor applications where space and weather resistance matter most.
Budget-conscious small home owner
The NR66ODLP weighs only 36 pounds. It is lighter and easier to install. Its 140,000 BTU rating suits smaller homes. This unit provides efficient hot water for low to medium usage. Pick this option for a simpler, lighter outdoor solution.
The products compared
Noritz 9.8 GPM Propane Tankless Water Heater
Best for: high-flow residential propane installations
- Fuel Type
- Liquid Propane
- Flow Rate
- 9.8 GPM
- BTU
- 180000 BTU
- Voltage
- 120 Volt
- Dimensions
- 24 × 8 × 9 inches
- Weight
- 65 pounds
View on Amazon: Noritz 9.8 GPM Propane Tankless Water Heater Affiliate link
The Noritz NRC98-DV-LP is a residential liquid propane tankless water heater. It delivers 9.8 gallons per minute at 180,000 BTU. The unit measures 24 inches long, 8 inches wide, and 9 inches high. It weighs 65 pounds and requires a 120-volt power source. This model suits homes needing high flow rates for multiple simultaneous uses. It fits well in standard residential installations where propane is the fuel source.
Pros
- 180,000 BTU input for strong heating performance
- 9.8 GPM flow rate supports multiple fixtures
- Compact dimensions: 24 x 8 x 9 inches
- Designed for liquid propane fuel
Cons
- Heavier at 65 pounds compared to lighter models
- Requires 120-volt electrical connection for operation
- Limited to residential use, not outdoor rated
Good fit if
- You need a high flow rate for whole-house supply
- You have a reliable liquid propane connection
- You prefer a compact indoor unit
Skip if
- You require an outdoor-rated unit
- You only have 240-volt electrical access
- You need a lower BTU input for smaller applications
Verdict: Noritz NRC98-DV-LP 9.8 GPM Propane Heater provides substantial hot water capacity for residential homes. It is ideal for households requiring high flow rates from a propane source.
Noritz 6.6 GPM Outdoor Liquid Propane Tankless Heater
Best for: outdoor propane water needs
- Fuel Type
- Liquid Propane
- Flow Rate
- 6.6 Gpm
- BTU
- 140,000 Btuh
- Installation Location
- Outdoor
- Dimensions
- 26.6 x 17.6 x 10.7 inches
- Weight
- 36 pounds
View on Amazon: Noritz 6.6 GPM Outdoor Liquid Propane Tankless Heater Affiliate link
This outdoor tankless water heater runs on liquid propane and delivers up to 6.6 gallons per minute. It features a 140,000 Btuh output for reliable hot water. The unit measures 26.6 by 17.6 by 10.7 inches and weighs 36 pounds. Its design is built for outdoor installation, making it suitable for patios or exterior walls. You get endless hot water with high efficiency and low NOx emissions.
Pros
- 140,000 Btuh heating capacity
- 6.6 GPM flow rate
- Designed for outdoor use
- Liquid propane fuel type
Cons
- Limited to outdoor installation only
- Heavier at 36 pounds
- No finish specified
Good fit if
- You need an outdoor water heater
- You use liquid propane fuel
- You want high efficiency
Skip if
- You need indoor installation
- You use natural gas
- You require a finished exterior
Verdict: Noritz NR66ODLP Outdoor Propane Heater is a solid choice for outdoor setups. It provides strong performance for exterior applications. You should buy it if you have propane access and outdoor space.
Specifications side by side
| Spec | Noritz 9.8 GPM Propane Tankless Water Heater | Noritz 6.6 GPM Outdoor Liquid Propane Tankless Heater |
|---|---|---|
| Fuel Type | Liquid Propane | Liquid Propane |
| Flow Rate | 9.8 GPM | 6.6 Gpm |
| BTU | 180000 BTU | 140,000 Btuh |
| Installation Location | not stated | Outdoor |
| Voltage | 120 Volt | not stated |
| Dimensions | not stated | 26.6 x 17.6 x 10.7 inches |
| Weight | 65 pounds | 36 pounds |
| Size | not_applicable | not stated |
| Color | Liquid Propane | No Finish |
| Model | NRC98-DV-LP | NR662-OD-LP |
Frequently asked questions
Can I install the Noritz NRC98-DV-LP outside?
No. The NRC98-DV-LP is designed for indoor residential use. It lacks the weather-resistant features required for outdoor exposure. You should choose the NR66ODLP if you need a unit for exterior installation. That model is built to withstand outdoor conditions. Using the NRC98-DV-LP outdoors could damage the unit.
Which model is lighter for mounting?
The Noritz NR66ODLP is lighter. It weighs 36 pounds. The NRC98-DV-LP weighs 65 pounds. The NR66ODLP is also more compact in width and height. This makes it easier to handle during installation. The NRC98-DV-LP is bulkier and heavier, requiring more robust mounting support.
Do both heaters use propane fuel?
Yes. Both the NRC98-DV-LP and the NR66ODLP run on liquid propane. You need a propane supply for either unit. They both provide endless hot water using this fuel source. This makes them suitable for homes with access to propane tanks or grid supply.
What are the physical dimensions of the NRC98-DV-LP?
The NRC98-DV-LP measures 24 inches in length, 8 inches in width, and 9 inches in height. It is a compact unit for its capacity. The NR66ODLP is wider at 17.6 inches and taller at 26.6 inches, but shorter in length at 10.7 inches. Check your space carefully before mounting.
Is the NR66ODLP good for high-flow needs?
It depends on your household size. The NR66ODLP provides 6.6 gallons per minute. This is lower than the NRC98-DV-LP. It suits smaller households or specific outdoor uses. If you need high flow for multiple showers, the NRC98-DV-LP is better. It delivers 9.8 gallons per minute.
Can I use the NR66ODLP for indoor showers?
It is not recommended. The NR66ODLP is built for outdoor installation. It lacks the safety features for indoor air quality. The NRC98-DV-LP is designed for indoor residential use. You should use the NRC98-DV-LP for indoor bathrooms. The NR66ODLP is best for exterior applications like outdoor kitchens or patios.

