When searching for the best tankless water heaters for RVs, the key considerations are performance, size, and compatibility with your RV setup. The RV Tankless Water Heater Propane stands out as the best overall choice, offering a blend of reliable power and ease of installation. For those prioritizing high-altitude use, the Poukaran 65,000 BTU provides superior performance. Budget-conscious buyers should consider the VEVOR RV Tankless Water Heater for its affordability and remote control features. However, tradeoffs exist: higher BTU units deliver more hot water but tend to be larger and more expensive, while compact models may sacrifice some output. Continue reading for a detailed breakdown of each option to find your perfect fit.
Key Takeaways
- High BTU ratings generally mean more hot water but often involve larger sizes and higher costs.
- Remote control features are common in premium models, offering greater convenience.
- CSA certification and CSA-certified components enhance safety, especially for propane units.
- High-altitude compatibility is a critical factor for mountain RVers and isn’t standard across all models.
- Size and installation requirements vary, making compatibility with your RV’s space a key consideration.
More Details on Our Top Picks
RV Tankless Water Heater Propane, On Demand Instant Propane Gas RV Tankless Hot Water Heater with 15 x 15 inch Door, DC 12V, 55000 BTUs 3.9 GPM, Compatible with All RVs, Campers, CSA Certificated
This model stands out for its seamless replacement capability, making it ideal for RV owners looking to upgrade without major modifications. Its smart remote control adds convenience, especially compared to less user-friendly options like the OEVANT heater, which requires extra purchase for a remote. The high BTU output of 55,000 ensures ample hot water for multiple users, and its staged combustion technology reduces propane consumption by up to 40%, balancing power and efficiency. The unit performs reliably at high altitudes, including nearly 10,000 feet, surpassing many competitors. However, its installation demands proper ventilation and propane setup, which could challenge DIYers. The safety features such as overheat and dry burn protection make it suitable for frequent travel. The comprehensive warranty offers peace of mind, making this a versatile pick for experienced RVers seeking safety and performance.
Pros:- Seamless replacement for existing RV water heaters
- Smart remote control for ease of operation
- High thermal power supports multiple simultaneous uses
- Reliable high-altitude performance
Cons:- Requires proper ventilation and propane setup
- Installation complexity for DIY users
Best for: RVers who want a reliable, safe, and easy-to-upgrade water heater with remote control features.
Not ideal for: Casual campers or those without experience in propane system installation, due to complex setup requirements.
- Flow Rate:3.9 GPM
- BTU Output:55,000 BTUs
- Power Source:Propane
- Voltage:12V
- Maximum Temperature:124°F
- Safety Certifications:CSA
Bottom line: This option is best for seasoned RV owners needing a versatile, high-power, and safety-focused water heater.
Propane Tankless Water Heater for RV, 55,000 BTUs, 3.9 GPM, 12V, CSA Certified
Compared to the OEVANT heater, this model emphasizes high efficiency and altitude capability, making it suitable for serious travelers. Its staged combustion technology helps reduce propane use, while the high BTU rating of 55,000 ensures rapid hot water delivery. Certified by CSA, it guarantees safety and reliability, especially important for high-altitude environments, including mountain ranges. Its wall-mount design fits well into compact RV spaces but requires careful installation. The unit’s performance at nearly 10,000 feet altitude surpasses many competitors, but it demands proper ventilation and exhaust setup, which could be challenging for less experienced users. Its energy efficiency and high-output make it a smart choice for frequent RV travelers needing dependable hot water across varied terrains.
Pros:- High BTU and flow rate for fast hot water
- Excellent high-altitude performance
- CSA certified for safety
- Energy-efficient staged combustion
Cons:- Requires proper ventilation and exhaust setup
- Installation complexity may deter DIYers
Best for: Travelers who prioritize high efficiency, safety, and high-altitude operation in their RV water heater.
Not ideal for: Beginners or casual campers with limited experience in propane systems and complex installation environments.
- Flow Rate:3.9 GPM
- BTU Output:55,000 BTUs
- Power Source:Propane
- Voltage:12V
- Maximum Temperature:124°F
- Certifications:CSA
Bottom line: Ideal for experienced RVers seeking a high-efficiency, high-altitude-capable propane water heater.
Poukaran 65,000 BTU RV Tankless Water Heater with Black Door, High Altitude Compatible, 12V DC, CSA Certified
This heater delivers a robust 65,000 BTUs, making it suitable for larger families or high-demand scenarios, setting it apart from the 55,000 BTU models like the Ranein. Its high BTU rating provides faster hot water and greater capacity, especially useful during cold weather or multiple simultaneous uses. The adjustable temperature control enhances user comfort, and its high-pressure capacity of 150 PSI makes it versatile for various RV plumbing setups. CSA certification guarantees safety. However, its propane fuel requirement limits use to RVs, and installation may be complex for those unfamiliar with propane systems. The black exterior adds a sleek look but might be less suited for environments where aesthetics are a priority. Overall, this unit makes a strong choice for users needing maximum power and high-altitude reliability.
Pros:- High BTU output for rapid hot water
- Adjustable temperature for comfort
- High-pressure capacity supports various plumbing needs
- CSA certified safety
Cons:- Requires propane supply and installation expertise
- Potentially complex setup for new users
Best for: High-capacity RV owners who need rapid hot water and adjustable temperature control, especially at high altitudes.
Not ideal for: Casual or small RV users who do not require such high power or are inexperienced with propane installation.
- BTU Output:65,000 BTUs
- Flow Rate:3.9 GPM
- Power Source:Gas (Propane)
- Voltage:12V
- Maximum Temperature:123°F
- Certifications:CSA
Bottom line: Best suited for high-demand RV families needing maximum power and high-altitude compatibility.
Ranein RV Tankless Water Heater 65,000 BTU Propane On-Demand RV Water Heater with 12V DC Power
Compared with the Poukaran, this model emphasizes smart remote monitoring, making it more convenient for tech-savvy users. Its 65,000 BTU output supports rapid hot water and multiple simultaneous uses, ideal for families or colder climates. The unit’s compatibility with standard RV plumbing simplifies upgrades, and its safety features—including freeze protection and overheat protection—match high standards. Its energy-efficient design minimizes propane use, and the CSA certification confirms safety. The need for propane and proper installation remains, and the absence of an exterior door might require an additional purchase, adding to the overall cost. This model is best for RV owners who value convenience, safety, and high performance for family trips.
Pros:- High BTU and flow for multiple uses
- Smart remote monitoring for gas, voltage, and water flow
- Compatible with standard RV plumbing
- Effective freeze and overheat protection
Cons:- Requires propane and proper installation
- Exterior door not included, additional purchase needed
Best for: Family RV owners seeking a smart, safe, and high-capacity water heater with easy upgrade potential.
Not ideal for: Solo travelers or those without experience in propane installation who prefer plug-and-play electric options.
- BTU Output:65,000 BTU
- Flow Rate:3.9 GPM
- Power Source:Propane
- Voltage:12V
- Maximum Temperature:125°F
- Certifications:CSA
Bottom line: Perfect for families wanting a high-capacity, smart, and safe propane water heater for RV adventures.
OEVANT RV Tankless Water Heater, 55,000 BTU, Propane Gas, 16×16 inch Door, DC 12V, CSA Certified, Compatible with All RVs
While the OEVANT offers a slightly larger 16×16 inch door for easier access and installation, it delivers the same 55,000 BTU power as other models like the RV Tankless heater, making it suitable for standard RV needs. Its compact size allows for flexible placement, and safety features such as anti-freezing and flame failure protection ensure dependable operation. The unit’s front water outlet simplifies connection, and its CSA certification confirms safety. However, it lacks an exterior door, which might necessitate an additional purchase, and its noise levels could be higher due to combustion. This heater is best for RV owners who prioritize ease of installation and compact design without sacrificing power, especially in cold climates.
Pros:- Compact size with a 16×16 inch door
- Easy to install with front water outlet
- CSA certified for safety
- Reliable propane operation
Cons:- No exterior door included, additional purchase needed
- Potentially noisier due to combustion process
Best for: RV owners who want a straightforward, space-efficient heater with safety features and easy access.
Not ideal for: Users seeking high-altitude performance or those who prefer electric-powered units for simplicity.
- BTU Output:55,000 BTUs
- Flow Rate:3.9 GPM
- Power Source:Gas (Propane)
- Voltage:12V
- Maximum Temperature:124°F
- Certifications:CSA
Bottom line: Ideal for RV owners needing a compact, easy-to-install propane heater with safety features.
ORBEK 60,000 BTU RV Tankless Water Heater, Propane Gas, 12V DC, CSA Certified with Remote
This model stands out for its high heat output of 60,000 BTU, making it ideal for large families or multiple simultaneous water uses in an RV. Compared with the VEVOR heater, it offers a more robust 60,000 BTU versus 42,000 BTU, translating into faster hot water delivery for demanding situations. Its staged combustion technology enhances energy efficiency, while CSA certification and safety protections ensure peace of mind. The remote control simplifies temperature adjustments, a feature missing in many competing models. The tradeoff is that installation can be complex, requiring specific dimensions and a professional setup, and it demands both propane and 12V DC power. It’s perfect for RV owners seeking reliable, high-capacity hot water with safety features, but less suitable for those with limited space or simpler needs.
Pros:- Powerful 60,000 BTU output for fast hot water
- Energy-efficient staged combustion technology
- CSA certified with multiple safety protections
- Remote control for easy temperature adjustments
Cons:- Installation requires specific dimensions and professional setup
- Requires propane supply and 12V DC power
- Limited to RV use, not adaptable for home installation
Best for: Large RV families or full-timers needing rapid, high-capacity hot water with safety features.
Not ideal for: Casual RV users with limited space or those seeking a simple, low-cost water heater.
- Power Source:Liquid Propane
- Flow Rate:3.5 Gallons Per Minute
- Maximum Temperature:123°F
- Heat Output:60000 BTU per Hour
- Voltage:12 Volts (DC)
- Maximum Pressure:150 PSI
Bottom line: This heater suits RV owners who prioritize high capacity, safety, and remote control features over ease of installation.
VEVOR RV Tankless Water Heater, Instant Shower with Remote, 42,000 BTU, Black Door
The VEVOR heater offers a solid 42,000 BTU, making it well-suited for typical RV use like showers and dishwashing without excessive power consumption. Compared to the ORBEK unit’s high capacity, it provides a more budget-friendly option with slightly less heating power, which may translate into longer wait times during peak use. Its all-season temperature adjustment and LED smart display add convenience, while the outdoor water outlet expands outdoor usability. However, installation may require professional help, especially for connecting gas and water lines, and its smaller power output might limit performance in larger RVs or simultaneous hot water demands. This makes it a practical choice for RV owners who want reliable hot water with straightforward features at a lower price point.
Pros:- Rapid instant heating suitable for showers
- All-season temperature adjustment and smart LED display
- Outdoor water outlet for outdoor use
- More affordable than high-capacity models
Cons:- Installation may require professional setup
- Limited power output for large RVs or multiple users
- Potential for higher energy use if not managed properly
Best for: RVers needing a reliable, versatile heater with outdoor use options and easy control for typical daily needs.
Not ideal for: Large families or those with high simultaneous hot water demands, as it may not deliver enough power.
- BTU:42,000
- Door Size:15 x 15 inches
- Water Connection:1/2″ NPT
- Gas Connection:1/2″ NPT
- Exhaust Pipe Diameter:φ2.36″
Bottom line: Ideal for RV owners seeking an affordable, versatile heater for regular use and outdoor convenience, but not for high-demand applications.
KINGRVER Tankless RV Water Heater 48,000 BTU, Instant On-Demand Hot Water, 12V DC, Wired Remote Controller, Compact Fit for Most RVs, Energy-Saving & High-Altitude Ready
The KINGRVER heater offers 48,000 BTU, combining moderate power with high-altitude performance up to 9,800 ft, making it ideal for mountain RV trips. Its compact design fits most RV water heater openings, and the wired remote control provides straightforward temperature adjustments. Compared to the larger ORBEK unit, it sacrifices some heat output but gains in portability and high-altitude capability, which is a key advantage for mountain travelers. Its energy-efficient design and safety features like anti-freezing and overheat protection make it a reliable choice for year-round use. The main tradeoff is that it requires compatible installation space and a 12V DC power source, limiting flexibility for some RV configurations. It’s best for RV owners with limited space and high-altitude needs who want dependable hot water.
Pros:- High-altitude performance up to 9,800 ft
- Compact, fits most RV water heater openings
- Energy-efficient with safety features
- Remote control for easy temperature adjustments
Cons:- Requires compatible installation space
- Limited flow rate of 2.5 GPM
- Door kits sold separately for replacement
Best for: RV travelers in mountainous regions needing high-altitude performance and a compact, energy-efficient heater.
Not ideal for: Large RVs or those who need very high flow rates for multiple simultaneous uses, as it offers limited capacity.
- Power Source:gas_powered
- Wattage:46 watts
- Flow Rate:2.5 Gallons Per Minute
- Maximum Temperature:123°F
- Efficiency:High
- Maximum Pressure:150 PSI
Bottom line: This heater suits RV owners needing reliable, space-saving hot water with high-altitude capability, but it may fall short for large-demand setups.
How We Picked
I evaluated each product based on performance metrics such as BTU output and flow rate, as these directly impact hot water availability. Usability factors like installation complexity, size, and remote control features were also considered, since ease of use matters in RV environments. Build quality and safety certifications, especially CSA approval, were prioritized to ensure reliability and safety on the road. Lastly, value was assessed by balancing features against price, ensuring options cater to a range of budgets while meeting key performance standards. Products were ranked by their overall ability to deliver consistent hot water, ease of installation, safety, and value for RV owners.Factors to Consider When Choosing Best Tankless Water Heaters For RVs
Choosing the right tankless water heater for your RV involves several important factors. Beyond just looking at power and size, it’s crucial to consider compatibility with your RV’s electrical and propane systems, ease of installation, safety certifications, and specific features like remote control. The right choice depends on your typical usage, travel destinations, and budget. Understanding these broader considerations can help you avoid common pitfalls and select a unit that offers reliable hot water without unnecessary expense or complexity.Power and Capacity
BTU output and flow rate are the primary indicators of a heater’s capacity to supply hot water. Higher BTU ratings mean more hot water at higher flow rates, which is essential for larger families or simultaneous uses. However, more powerful units tend to be bulkier and consume more propane or electricity. Balancing your hot water needs against available space and fuel sources is key—overestimating capacity can lead to unnecessary costs, while underestimating results in insufficient hot water during peak use.
Size and Installation
Size matters significantly in an RV setting where space is limited. Compact units are easier to install and fit into tight spaces but may offer less hot water or require higher flow settings. Consider whether your RV’s existing plumbing and electrical system can support the unit’s requirements. Proper installation is critical for safety and efficiency, so choosing a model that matches your RV’s configuration and your technical comfort level can prevent headaches later.
Energy Source and Efficiency
Most tankless RV water heaters run on propane, but some models also support 12V DC power, offering flexibility for off-grid use. Energy efficiency impacts fuel consumption, so look for units with features like high-altitude operation and energy-saving modes. Keep in mind that higher efficiency often comes with a higher initial cost but can save money over time through reduced fuel use, especially for frequent travelers.
Safety Certifications and Features
Safety should never be compromised, especially with propane-powered units. Look for CSA certification and other safety features such as automatic shutoff, flame detection, and proper venting. These features help prevent accidents and ensure reliable operation. High-quality safety components may add to the initial cost but provide peace of mind during extended use or in adverse conditions.
Additional Features and User Experience
Extras like remote controls, digital displays, and high-altitude compatibility can greatly enhance usability. Remote controls are particularly useful for adjusting temperature settings without accessing the heater directly. Consider also the ease of maintenance, durability in rugged environments, and customer support reputation. These details can influence long-term satisfaction and the overall value of your investment.
Frequently Asked Questions
Can I install a tankless water heater myself in my RV?
Installing a tankless water heater in an RV can be feasible for those with basic plumbing and electrical skills, but it often involves working with propane lines, electrical wiring, and venting systems. Improper installation can pose safety risks or lead to performance issues, so many owners prefer professional installation. If you have experience and the right tools, carefully following manufacturer instructions can make a DIY project successful, but always prioritize safety and local code compliance.
Do all tankless water heaters work at high altitudes?
No, not all models are designed for high-altitude use. Standard units may struggle to operate efficiently or safely above certain elevations, typically around 5,000 feet. High-altitude models include special adjustments or features that prevent issues like pilot light blowouts or inconsistent heating. If you frequently camp or live at elevations over 5,000 feet, selecting a high-altitude compatible heater is essential to ensure reliable hot water supply.
How much does a tankless water heater for an RV typically cost?
The price range varies widely based on capacity, features, and brand. Basic models can start around $300, but more advanced units with remote controls, higher BTUs, and high-altitude capabilities often cost between $600 and $1,200. Investing in a slightly more expensive unit can pay off through better performance, durability, and safety features. Consider your budget alongside your hot water needs to find the best value.
What maintenance does a tankless RV water heater require?
Regular maintenance includes flushing the unit to prevent mineral buildup, especially if you have hard water. Checking and replacing filters, inspecting venting and connections, and verifying safety features like flame sensors are also important. Proper maintenance extends the lifespan of your heater and keeps it running efficiently, reducing the risk of breakdowns. Many models feature easy-access panels or remote diagnostics that simplify upkeep.
Is it better to choose a propane or electric tankless water heater for my RV?
Most RV tankless water heaters run on propane because it provides higher capacity and independence from shore power, which is ideal for off-grid camping. Electric models are typically less powerful and depend on RV electrical systems, making them suitable for smaller needs or RVs with ample electrical capacity. For most RV owners, propane units offer more flexibility and capacity, but if you frequently camp at sites with reliable electrical hookups, an electric heater might reduce fuel costs and simplify installation.
Conclusion
For the widest range of needs, the RV Tankless Water Heater Propane makes a compelling choice as the best overall, thanks to its reliable performance and ease of use. Budget-conscious travelers or those with modest hot water demands might favor the VEVOR RV Tankless Water Heater for its affordability. For high-altitude adventurers, the Poukaran 65,000 BTU offers specialized features that prevent performance issues at elevation. Beginners should look for models with straightforward installation and safety features, while experienced RVers may prioritize units with remote controls and high BTUs. Overall, the ideal choice hinges on your specific setup, travel style, and hot water needs.
