6 Best Alternatives to the Noritz NR50ODLP Outdoor Tankless Water Heater (2026)
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If you are searching for noritz nr50odlp outdoor tankless water heater alternatives, comparing published specifications will help you find the right system for your setup. The original Noritz unit operates outdoors on liquid propane, providing a 5.0 GPM flow rate and 120,000 BTUh output within a 33-pound cabinet. This design works well for moderate hot water needs without taking up interior wall space. Still, you might need a different brand, a smaller portable frame, or a higher capacity like 8.5 GPM and 190,000 BTU to supply multiple fixtures.
The 6 alternatives in this guide were chosen because their specifications overlap with the Noritz model. Every featured option uses propane and installs outdoors, but they vary in physical size, weight, and performance. Reviewing these differences will help you select the best balance of flow rate and heating power for your home in 2026.
Our top pick: Noritz Outdoor Propane Tankless Water Heater.
How Each Alternative Compares
Ranein 8.5 GPM Outdoor Propane Water Heater
The Ranein outdoor propane heater provides a higher heating capability with 190,000 BTU and an 8.5 GPM rating, compared to 120,000 BTUh and 5.0 GPM on the Noritz unit. It also incorporates anti-freeze protection for cold exterior conditions. You give up the lighter profile of the Noritz, which weighs 33 pounds and measures 10.7 inches deep, whereas the Ranein weighs 44 pounds and extends 15.1 inches deep. Choose the Ranein if you have a multi-bath home requiring outdoor liquid propane supply and higher simultaneous water delivery.
Rinnai RE180eP Outdoor Propane Water Heater
The Rinnai RE180eP increases output to 6.9 GPM compared to the 5.0 GPM flow delivered by the Noritz heater. It includes a diagnostic LED interface and operates as a non-condensing outdoor propane system. You give up the lighter weight of the Noritz, which weighs 33 pounds, while the Rinnai weighs 50 pounds. The Rinnai is slightly more compact in height and width at 24.6 by 14.1 inches compared to the Noritz at 26.6 by 17.6 inches. Pick this Rinnai model if you need to run several plumbing fixtures at the same time and want clear status monitoring from the unit.
VancEpic Outdoor Propane Tankless Water Heater
The VancEpic unit delivers 190,000 BTU and up to 8.5 GPM, providing substantially higher heating capacity than the 120,000 BTUh and 5.0 GPM specs of the Noritz. However, you give up elevation flexibility, as the VancEpic specifies use below 2,000 feet. It is also significantly heavier at 49 pounds versus the 33-pound Noritz, and its 15.1-inch depth sticks out further from the wall than the 10.7-inch Noritz frame. You should pick the VancEpic if your home sits below 2,000 feet of elevation and you need to supply high-demand, multi-fixture hot water from an exterior propane connection.
Rinnai Outdoor Propane Tankless Water Heater
The Rinnai RUS65EP provides 6.5 GPM, allowing you to supply up to five simultaneous appliances, whereas the Noritz tops out at 5.0 GPM. It also comes with a 12-year heat exchanger warranty for exterior propane installations. What you give up is space and ease of handling. The Rinnai weighs 63 pounds and measures 35 inches tall, 14.5 inches wide, and 22 inches deep, making it nearly double the 33-pound weight of the Noritz and more than twice as deep. Choose this Rinnai model if your household runs multiple major hot water appliances concurrently.
Camplux 5L Portable Propane Water Heater
The Camplux AY132 is built for off-grid portability, featuring low-pressure ignition, battery power, overheat protection, and a compact 10-pound weight. In contrast, the Noritz is a stationary 33-pound outdoor fixture. What you give up is whole-house heating capacity: the Camplux produces 1.32 GPM, which is much lower than the 5.0 GPM flow and 120,000 BTUh output on the Noritz. Its dimensions of 14.8 by 11.4 by 4.33 inches make it easy to pack. Pick the Camplux if you need hot water for camping, RV trips, or mobile outdoor showers rather than residential plumbing.
The VEVOR outdoor propane heater matches the 120,000 BTU/h rating of the Noritz while offering a 5.3 Gal size and a lighter 29.1-pound weight compared to 33 pounds. It includes a 32.8-foot wired controller for indoor temperature adjustments, which the Noritz lacks. You give up the slimmer wall profile of the Noritz, as the VEVOR measures 15 inches deep compared to the 10.7-inch depth on the Noritz. Dimensions are 23.2 inches high and 15 inches wide. Choose the VEVOR if you want outdoor propane whole-house heating with the convenience of indoor temperature regulation.
Quick picks
Our 7 picks
Noritz Outdoor Propane Tankless Water Heater
Best for: outdoor liquid propane hot water setups
- Fuel Type
- Liquid Propane
- Flow Rate
- 5.0 Gpm
- BTU
- 120,000 Btuh
- Installation Location
- Outdoor
- Dimensions
- 26.6 x 17.6 x 10.7 inches
- Weight
- 33 pounds
View on Amazon: Noritz Outdoor Propane Tankless Water Heater
This outdoor tankless water heater runs on liquid propane and delivers up to 5.0 GPM of continuous hot water. Operating at 120,000 BTUh with low NOx emissions, it mounts externally to save indoor utility space. At 33 pounds and measuring 26.6 by 17.6 by 10.7 inches, it suits you if you need a dedicated exterior heater for moderate household water demands without dedicating indoor space.
Pros
- 5.0 GPM maximum flow rate
- 120,000 BTUh heating performance
- Low NOx emission rating
- Weighs 33 pounds for wall mounting
Cons
- Outdoor installation only
- Requires liquid propane supply
Good fit if
- You need an exterior-mounted heater fueled by liquid propane.
- You require a flow rate capacity of up to 5.0 GPM.
Skip if
- You need an indoor water heater.
- You use natural gas instead of liquid propane.
Verdict: Noritz 5.0 GPM Outdoor Propane Water Heater provides a dedicated exterior solution delivering 120,000 BTUh for moderate hot water needs. Its 33-pound design keeps installation requirements focused entirely outside the home.
Ranein 8.5 GPM Outdoor Propane Water Heater
Best for: homes needing high flow from outdoor propane
- Fuel Type
- Propane
- Flow Rate
- 8.5 GPM
- BTU
- 190,000 BTU
- Installation Location
- Outdoor
- Dimensions
- 24.3 x 15.1 x 8.1 in
- Weight
- 44 pounds
The Ranein 8.5 GPM Outdoor Propane Water Heater provides on-demand hot water using liquid propane. It delivers up to 190,000 BTU and an 8.5 GPM flow rate, which supports four to six fixtures at once. Standard 3/4-inch NPT connections match standard plumbing lines. If you need high hot water capacity for an entire household from an exterior unit without indoor venting, this model covers your demands.
Pros
- High heat output rated at 190,000 BTU
- Supplies up to 8.5 GPM across 4 to 6 outlets
- Equipped with bottom-mounted blower and anti-freeze protection
- Uses standard 3/4-inch NPT gas and water connections
Cons
- Not recommended for installations above 2,000 feet elevation
- Requires manual draining via pressure relief valve during freezing weather
Good fit if
- You need to supply hot water to 4 to 6 outlets simultaneously.
- You live below 2,000 feet elevation and use liquid propane.
- You want an outdoor installation using standard 3/4-inch NPT connections.
Skip if
- You live at an elevation higher than 2,000 feet.
- You require an indoor water heater or use natural gas.
Verdict: Ranein 8.5 GPM Outdoor Propane Water Heater provides heavy-duty capacity for multi-bath setups requiring outdoor installation. Its 190,000 BTU output and anti-freeze protection make it a capable outdoor propane alternative.
Rinnai RE180eP Outdoor Propane Water Heater
Best for: homes needing multi-fixture outdoor propane flow
- Fuel Type
- Propane
- Flow Rate
- 6.9 GPM
- Installation Location
- Outdoor
- Dimensions
- 24.6 x 14.1 x 10.8 inches
- Venting Type
- Non-Condensing
- Weight
- 50 pounds
The Rinnai RE180eP is an outdoor non-condensing tankless water heater running on liquid propane. It supplies up to 6.9 GPM, supporting up to five fixtures at the same time. Measuring 24.6 by 14.1 by 10.8 inches and weighing 50 pounds, it fits exterior wall mountings cleanly. It suits you if you need a high-capacity propane unit with an integrated LED screen for service reminders and diagnostics outside your home.
Pros
- Delivers up to 6.9 GPM to run up to 5 fixtures simultaneously
- Built-in LED screen provides error codes and service reminders
- Up to 15-year heat exchanger and 5-year parts warranty coverage
- Compact outdoor footprint measuring 24.6 x 14.1 x 10.8 inches
Cons
- WiFi connectivity requires separate purchase of the Controlr module
- Labor warranty drops from 5 years to 1 year without 90-day registration
- Configured strictly for outdoor installation
Good fit if
- You need up to 6.9 GPM to supply multiple fixtures simultaneously outdoors.
- You run liquid propane and want a non-condensing outdoor setup.
- You want on-unit LED diagnostic alerts and service reminders.
Skip if
- You need an indoor water heater installation.
- You want out-of-the-box Wi-Fi control without buying an add-on module.
- You use natural gas rather than liquid propane.
Verdict: Rinnai RE180eP Outdoor Propane Water Heater provides a substantial 6.9 GPM flow rate and diagnostic LED interface for outdoor liquid propane setups. It is a capable, warranty-backed upgrade when you need to run several plumbing fixtures at once.
Rinnai Outdoor Propane Tankless Water Heater
Best for: homes running multiple simultaneous hot water appliances
- Fuel Type
- Propane
- Flow Rate
- 6.5 GPM
- Installation Location
- Outdoor
- Dimensions
- 35 x 14.5 x 22 inches
- Weight
- 63 pounds
View on Amazon: Rinnai Outdoor Propane Tankless Water Heater
This outdoor propane unit delivers up to 6.5 GPM, which supplies up to five fixtures at the same time. It measures 35 by 14.5 by 22 inches and weighs 63 pounds. If you need a reliable outdoor liquid propane heater to run several hot water outlets at once, this heater gives you substantial flow backed by a 12-year heat exchanger warranty.
Pros
- Maximum flow rate of 6.5 GPM supports up to 5 appliances
- 12-year heat exchanger, 5-year parts, and 1-year labor residential warranty
- Flexible venting options support PVC or CPVC pipe
- Designed for dedicated outdoor propane installation
Cons
- Weighs 63 pounds, requiring sturdy mounting support
- Professional installation recommended by the manufacturer
- Labor warranty coverage lasts only 1 year
Good fit if
- You need up to 6.5 GPM to run multiple appliances at once.
- You prefer an outdoor propane tankless system with a 12-year heat exchanger warranty.
- You want flexible venting options that include PVC or CPVC compatibility.
Skip if
- You plan to install the water heater yourself without professional assistance.
- You need a lightweight unit that weighs under 50 pounds.
Verdict: Rinnai 6.5 GPM Outdoor Propane Tankless Water Heater delivers steady flow for up to five appliances and provides dependable outdoor propane heating. Its 12-year heat exchanger warranty makes it a durable replacement option for your outdoor setup.
VancEpic Outdoor Propane Tankless Water Heater
Best for: multi-fixture homes below 2,000 feet elevation
- Fuel Type
- Propane
- Flow Rate
- 8.5 GPM
- BTU
- 190,000 BTU
- Installation Location
- Outdoor
- Dimensions
- 24.3 x 15.1 x 8.1 inches
- Weight
- 49 pounds
View on Amazon: VancEpic Outdoor Propane Tankless Water Heater
This outdoor propane tankless water heater delivers up to 8.5 GPM with a 190,000 BTU heating capacity. It uses standard 3/4-inch NPT water and gas connections and features an automatic bottom-mounted blower. Measuring 24.3 by 15.1 by 8.1 inches, it supplies four to six outlets at once. It suits you if you need high-volume outdoor hot water for multiple fixtures.
Pros
- High output reaching 8.5 GPM and 190,000 BTU
- Bottom-mounted blower adjusts speed to match wind pressure
- Standard 3/4-inch NPT water and gas connections
- Built-in anti-freeze protection feature
Cons
- Not recommended for locations above 2,000 feet elevation
- Must be manually drained during prolonged freeze periods
Good fit if
- You need to supply four to six outlets simultaneously.
- You live at an elevation under 2,000 feet.
- You plan to mount your water heater outdoors.
Skip if
- You live at an altitude higher than 2,000 feet.
- You require an indoor water heater installation.
Verdict: VancEpic 8.5 GPM Outdoor Propane Tankless Water Heater delivers 190,000 BTU and up to 8.5 GPM for running multiple fixtures simultaneously. It serves as an outdoor-mounted propane solution for properties below 2,000 feet of elevation.
Camplux 5L Portable Propane Water Heater
Best for: off-grid camping and outdoor portable showers
- Fuel Type
- Propane
- Flow Rate
- 1.32 GPM
- Installation Location
- Outdoor
- Certification
- CSA
- Dimensions
- 4.33 x 11.4 x 14.8 inches
- Use
- Camping, RV
This portable outdoor propane water heater delivers 1.32 GPM of hot water and weighs 10 pounds. Unlike whole-home units, it runs on two D-size batteries and requires no electrical hookup. It activates with water pressure as low as 3.0 PSI. If you need a lightweight hot water source for camping, RV trips, or off-grid outdoor washing, this unit gives you basic, portable flow wherever you set up.
Pros
- Weighs 10 pounds with a folding handle
- Ignites at 3.0 PSI water pressure
- Runs on 2 D batteries without electrical hookup
- Includes shower head, hoses, and 5-foot gas regulator
Cons
- Delivers 1.32 GPM maximum flow rate
- Not built for whole-home indoor plumbing
Good fit if
- You need a lightweight water heater for camping, RV use, or off-grid trips.
- You use a low-pressure water source down to 3.0 PSI.
- You lack access to an electrical outlet and need battery ignition.
Skip if
- You need high flow rates above 1.32 GPM for multiple fixtures.
- You want a permanent whole-house water heating installation.
Verdict: Camplux 5L Portable Propane Water Heater delivers low-pressure ignition and battery-powered operation for camping setups. Its 1.32 GPM output serves mobile washing needs rather than whole-home fixtures.
Camplux 2.11 GPM Portable Outdoor Propane Water Heater
Best for: Camping and single-tap outdoor washing tasks
- Fuel Type
- Propane
- Flow Rate
- 2.11 GPM
- BTU
- 55,000 BTU/hr
- Installation Location
- Outdoor
- Temperature Control
- 18-95 °F
- Certification
- CSA
View on Amazon: Camplux 2.11 GPM Portable Outdoor Propane Water Heater
The Camplux BW211 is a portable propane water heater designed for outdoor use. It delivers up to 2.11 GPM at 55,000 BTU. The unit weighs 19 pounds and measures 20.5 x 12.6 x 12.6 inches. It features a temperature range of 18-95 °F and CSA approval. You can use it for camping, hiking, or washing pets. It runs on a standard 20 lb propane tank.
Pros
- Portable 19-pound design for easy transport
- 55,000 BTU output for reliable heating
- CSA approved with six safety protections
- Runs on standard 20 lb propane tanks
Cons
- Low flow rate of 2.11 GPM limits simultaneous use
- Requires manual temperature adjustment via Eco/Full switch
- Minimum water pressure requirement of 3.6 PSI
Good fit if
- You need a lightweight heater for camping trips
- You want to wash pets or vehicles outdoors
- You are in a remote area without fixed plumbing
Skip if
- You need high flow for multiple showers
- You require precise digital temperature control
- You need a permanent indoor installation
Verdict: Camplux BW211 2.11 GPM Portable Propane Heater suits campers who prioritize portability over high flow rates. It is a practical solution for single-tap outdoor tasks like pet washing or hand cleaning.
Specifications side by side
| Spec | Noritz Outdoor Propane Tankless Water Heater | Ranein 8.5 GPM Outdoor Propane Water Heater | Rinnai RE180eP Outdoor Propane Water Heater | Rinnai Outdoor Propane Tankless Water Heater | VancEpic Outdoor Propane Tankless Water Heater | Camplux 5L Portable Propane Water Heater | Camplux 2.11 GPM Portable Outdoor Propane Water Heater |
|---|---|---|---|---|---|---|---|
| Fuel Type | Liquid Propane | Propane | Propane | Propane | Propane | Propane | Propane |
| Flow Rate | 5.0 Gpm | 8.5 GPM | 6.9 GPM | 6.5 GPM | 8.5 GPM | 1.32 GPM | 2.11 GPM |
| BTU | 120,000 Btuh | 190,000 BTU | not specified | not specified | 190,000 BTU | not specified | 55,000 BTU/hr |
| Installation Location | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor |
| Temperature Control | not specified | not specified | not specified | not specified | not specified | not specified | 18-95 °F |
| Certification | not specified | not specified | not specified | not specified | not specified | CSA | CSA |
| Dimensions | 26.6 x 17.6 x 10.7 inches | 24.3 x 15.1 x 8.1 in | 24.6 x 14.1 x 10.8 inches | 35 x 14.5 x 22 inches | 24.3 x 15.1 x 8.1 inches | 4.33 x 11.4 x 14.8 inches | 20.5 x 12.6 x 12.6 inches |
| Use | not specified | not specified | not specified | not specified | not specified | Camping, RV | Camping |
| Venting Type | not specified | not specified | Non-Condensing | not specified | not specified | not specified | not specified |
| Features | not specified | not specified | not specified | not specified | not specified | Overheat Protection | not specified |
| Weight | 33 pounds | 44 pounds | 50 pounds | 63 pounds | 49 pounds | 10 pounds | 19 pounds |
| Color | Liquid Propane | Gray-LPG | Silver | Outdoor Installation | Gray-LPG | White | White |
| Model | NR501-OD-LP | RHO19K-LPG | REU-VE2432WD-US-P | RUS65EP | V-RHO19K-LPG | AY132 | BW211 |
| Size | not specified | 8.5 GPM Outdoor | 8.5 GPM | 6.5 GPM | 8.5 GPM,190,000 BTU, Outdoor | Classic | not specified |
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Frequently asked questions
Can I use these outdoor propane heaters in freezing temperatures?
Yes, many models include anti-freeze protection to prevent damage during cold weather. The Ranein 8.5 GPM unit specifically lists this feature for outdoor installations. This allows the system to survive freezing conditions without manual intervention. You should still verify the specific model details to ensure it meets your local climate requirements.
Which alternative offers the highest flow rate for multiple bathrooms?
The Ranein and VancEpic units both provide an 8.5 GPM flow rate. This capacity supports running multiple fixtures simultaneously, such as showers and sinks. The Noritz NR50ODLP only delivers 5.0 GPM, which may limit concurrent usage. If you need higher volume, these 8.5 GPM options are better suited for busy households.
Do any of these heaters work at high elevations?
The VancEpic model is rated for properties below 2,000 feet of elevation. This limitation is common for propane tankless units due to air density affecting combustion. If you live above this altitude, you may need a derated model or a different fuel type. Always check the elevation specifications before purchasing for high-altitude locations.
Is there a portable option for camping or RV use?
The Camplux 5L Portable Propane Water Heater is designed for off-grid and mobile use. It weighs only 10 pounds and features battery-powered operation. With a 1.32 GPM output, it suits personal washing needs rather than whole-home plumbing. This compact unit is ideal for camping trips or RV showers where portability is key.
Which model includes a remote controller for temperature adjustment?
The VEVOR 5.3 Gal Outdoor Propane Tankless Heater includes a 32.8-foot wired controller. This allows you to monitor and adjust heating settings from inside your home. Other models require manual adjustments on the unit itself. If you prefer remote management without stepping outside, the VEVOR controller offers significant convenience for residential installations.
How do the physical dimensions compare for installation space?
Dimensions vary significantly across these units. The Noritz NR501-OD-LP measures 17.6 inches wide and 26.6 inches tall. The Rinnai RE180eP is narrower at 14.1 inches wide but taller at 24.6 inches. The VancEpic and Ranein share similar footprints of 15.1 inches square. Measure your installation area carefully to ensure the chosen unit fits your outdoor space.
Are there non-condensing options for exterior venting?
The Rinnai RE180eP is listed as a non-condensing unit. This venting type is often preferred for outdoor installations to simplify exhaust routing. Non-condensing units exhaust hot gases directly, which can be easier to manage in exterior settings. Check the venting requirements for your specific model to ensure compatibility with your existing plumbing and gas lines.