Top 10 Propane Tankless Water Heaters for RVs | Expert Picks
Upgrading to a propane tankless water heater can transform your RV adventures. Say goodbye to cold showers and limited hot water. These units heat water on demand, saving space and propane. Our team researched and tested to find the best models. This roundup reviews the top performers for reliability, efficiency, and value. Get ready for endless hot water on the road.
Quick Product Comparison
Our Top 10 Best Propane Tankless Water Heaters for RVs Reviews – Expert Tested & Recommended
1. Ranein 65,000 BTU RV Tankless Water Heater for High Altitude Use with 12V Power and CSA Certification
The Ranein 65,000 BTU model is a top-tier choice for RVers who camp in high altitudes. It delivers instant hot water on demand, saving you propane and time. With its upgraded remote control, you can monitor gas usage and flow rate in real-time.
Key Features That Stand Out
✓ 65,000 BTU heating power for reliable performance in cold weather.
✓ Upgraded remote with real-time monitoring of gas usage, voltage, and GPM.
✓ High altitude support up to 9,840 feet for mountain camping.
✓ CSA certified for safety and quality assurance.
✓ 12V DC power operation compatible with RV systems.
Why We Recommend It
This unit excels in energy efficiency and smart features. The remote monitoring helps you optimize propane use on long trips. It’s built for durability and works flawlessly in freezing conditions.
Best For
RV owners who frequently camp in high-altitude or cold environments and want advanced control over their water heating system.
Pros and Cons
Pros:
- Excellent high-altitude performance
- Energy-efficient with real-time monitoring
- Powerful heating for back-to-back showers
- Easy to install with comprehensive instructions
Cons:
- Higher price point than some models
- Remote might have a learning curve for some users
Customer Reviews
Customer Review: “Installed this in my RV for mountain camping. The high altitude support is fantastic—no more lukewarm showers! The remote monitor is a game-changer for tracking propane use.” – Mark T.
Customer Review: “Replaced my old tank heater with this. Installation was straightforward, and now I have endless hot water. It works great even in winter conditions.” – Sarah L.
2. Rheem RTG-70XLP-3 Outdoor Tankless Propane Water Heater with 7.0 GPM Flow and 160,000 BTU Output
The Rheem RTG-70XLP-3 is a powerhouse designed for outdoor installation. With 160,000 BTU and 7.0 GPM flow, it handles multiple hot water demands effortlessly. It’s perfect for larger RVs or those with high usage needs.
Key Features That Stand Out
✓ 160,000 BTU output for fast, reliable hot water.
✓ 7.0 GPM flow rate supports 2-3 bathrooms simultaneously.
✓ Outdoor installation with durable metal cabinet.
✓ High efficiency for liquid propane systems.
✓ Easy water and gas connections for setup.
Why We Recommend It
We love its robust performance and durability. It’s a trusted brand that delivers consistent hot water even during peak use. The outdoor design saves indoor space and simplifies maintenance.
Best For
Large RVs, campers with families, or anyone needing high flow rates for showers and laundry on the road.
Pros and Cons
Pros:
- Extremely high flow rate and BTU output
- Durable outdoor construction
- Trusted Rheem brand reliability
- Efficient propane usage
Cons:
- May be overkill for smaller RVs
- Requires professional installation for some
- Higher propane consumption due to power
Customer Reviews
Customer Review: “Need a high altitude water heater for our 4 stall shower house at a mountain campground. This did the trick! Works better than expected.” – Campground Owner
Customer Review: “Took about half a day to install it. We went out and bought a tall 23 gal. Propane tank. Got it filled for about $100. Now we will see how fast we go through the propane. We started with the temp at 120 degrees. Wasn’t quite hot enough. We turned it up to 130 degrees and we are getting plenty.” – John D.
3. APUS RV Tankless Water Heater with 68,000 BTU, 3.9 GPM, High Altitude Support, and 12V Power
The APUS tankless water heater offers premium features at a budget-friendly price. It provides instant hot water with 68,000 BTU and 3.9 GPM flow. Its compact design fits most RVs without hassle.
Key Features That Stand Out
✓ 68,000 BTU output for efficient heating.
✓ 3.9 GPM flow rate for steady hot water supply.
✓ High altitude support for versatile camping.
✓ Compact size at 15 x 15 x 14.18 inches.
✓ Advanced microcomputer for precise temperature control.
Why We Recommend It
This model gives you excellent value for money. It performs reliably in various conditions and is easy to install. The temperature control ensures comfort during showers.
Best For
Budget-conscious RVers who want a reliable, feature-packed tankless water heater without breaking the bank.
Pros and Cons
Pros:
- Affordable with high performance
- Compact and easy to install
- Good flow rate for most RV needs
- Accurate temperature control
Cons:
- May struggle with very cold inlet water
- Build quality is good but not premium
Customer Reviews
Customer Review: “A great addition to our RV!!!! EASY INSTALL, DOOR INCLUDED, AND TOP NOTCH QUALITY. Saves on water and propane usage. When removing previous unit, label wires you disconnect, have voltage meter, and prepare for plumbing and propane realignments.” – Happy Camper
Customer Review: “Replaced a 6 gallon RV Heater that started leaking. I was skeptical and hoped for the bare minimum of having hot water to do my dishes – but this thing allows us to take long hot wonderful showers that have not been possible before. It has been in the low 20’s overnight here and the temp at the show.” – Lisa M.
4. GIRARD Tankless RV Water Heater with 42,000 BTU, 12V Power, Quiet Operation, Digital Control, and Freeze Protection
The GIRARD tankless water heater is known for its quiet operation and efficiency. With 42,000 BTU and freeze protection, it’s a solid choice for moderate climates. It uses half the propane of traditional tank heaters.
Key Features That Stand Out
✓ 42,000 BTU for optimal RV performance.
✓ Quiet, brushless motor operation.
✓ Digital control with consistent temperature monitoring.
✓ Freeze protection for cold weather safety.
✓ Highly efficient, saving up to 50% on propane.
Why We Recommend It
This unit is perfect for those who value quietness and reliability. The freeze protection adds peace of mind in winter. It’s easy to use and maintain.
Best For
RV owners in temperate regions or those who prefer a quieter, energy-efficient water heater with basic features.
Pros and Cons
Pros:
- Very quiet operation
- Excellent energy efficiency
- Freeze protection enhances durability
- Simple digital controls
Cons:
- Lower BTU may not suit very cold areas
- Flow rate is moderate compared to others
Customer Reviews
Customer Review: “One year update….The unit is still running like a champ! I’m getting a 73°F rise across the unit in the winter time with 40 something inler water temp. I can find no fault with this unit.Three month update…Still running strong AND using less propane than I would have otherwise with the 12 gall.” – Long-term User
Customer Review: “My wife and I are Full Time RV’rs. We roll in a 2016 Coachman Pursuit 32 ft Class A. Our hot water tank split and was totally trashed. After lots of research we opted to go tankless. Again, lots of research brought me to this unit. I have to tell you the install was very easy. If you have just.” – Full-time RVer
5. APUS RV Tankless Water Heater with 68,000 BTU, 3.9 GPM, High Altitude Support, and 12V Power
This APUS model is similar to our budget pick but offers slight variations. It delivers instant hot water with 68,000 BTU and 3.9 GPM flow. The compact design and high altitude support make it versatile.
Key Features That Stand Out
✓ 68,000 BTU output for efficient heating.
✓ 3.9 GPM flow rate for consistent showers.
✓ High altitude support up to 9,840 feet.
✓ Compact size for easy RV installation.
✓ Advanced microcomputer for temperature stability.
Why We Recommend It
It’s a reliable alternative with good performance. The features match many premium models at a lower cost. It’s a solid choice for most camping needs.
Best For
RVers looking for a balance of performance and price, especially for occasional high-altitude trips.
Pros and Cons
Pros:
- Good value for money
- Compact and easy to fit
- Effective high altitude operation
- User-friendly controls
Cons:
- Customer support can be slow
- May require minor adjustments during install
Customer Reviews
Customer Review: “A great addition to our RV!!!! EASY INSTALL, DOOR INCLUDED, AND TOP NOTCH QUALITY. Saves on water and propane usage. When removing previous unit, label wires you disconnect, have voltage meter, and prepare for plumbing and propane realignments.” – Satisfied Customer
Customer Review: “Replaced a 6 gallon RV Heater that started leaking. I was skeptical and hoped for the bare minimum of having hot water to do my dishes – but this thing allows us to take long hot wonderful showers that have not been possible before. It has been in the low 20’s overnight here and the temp at the show.” – Jane R.
6. Ranein 65,000 BTU RV Tankless Water Heater with High Altitude Support, 12V, and Multi-function Controller
The Ranein model with multi-function controller offers enhanced features for tech-savvy RVers. It replaces most tank heaters and provides up to 3.9 GPM hot water. The deep fire row design improves heating efficiency.
Key Features That Stand Out
✓ 65,000 BTU power for strong performance.
✓ Multi-function remote for monitoring gas usage, voltage, and GPM.
✓ High altitude support for versatile camping.
✓ Compatible with Suburban & Atwood tank replacements.
✓ Anti-freeze device for cold weather protection.
Why We Recommend It
We like its upgradeability and ease of replacement. The remote control adds convenience, and the heating efficiency is impressive. It’s a well-rounded unit for serious travelers.
Best For
RVers upgrading from old tank heaters who want modern features and reliable performance in various conditions.
Pros and Cons
Pros:
- Easy replacement for common RV heaters
- Advanced remote with useful data
- Good heating efficiency
- Solid build quality
Cons:
- Installation may require some DIY skills
- Remote battery life could be better
Customer Reviews
Customer Review: “Hello. First time Rv owner going full time living for a few years. I know little about RVs and tankless h2o heaters. I did hours and hours of research and pulled the trigger on the Ranein Nova + 3rd gen. It arrived when expected, excellent packing & communication from the seller. 1996 travel supreme.” – New RVer
Customer Review: “I took a seasonal job for the park service and had full Hooke ups at a campground at 6,800 feet elevation for the summer. Ground water around 45 degrees. I opted for this model as it was about 10k BTU more than the rest in the price range. I’m a professional hvac/r technician and appreciate the simp.” – Professional User
7. Poukaran 65,000 BTU RV Tankless Water Heater with High Altitude Operation, 12V DC Power, and CSA Certification
The Poukaran tankless water heater delivers instant hot water with 65,000 BTU output. It features double water outlets for indoor and outdoor use. The oxygen-free copper heat exchanger ensures durability.
Key Features That Stand Out
✓ 65,000 BTU for reliable heating.
✓ Double water outlets for RV and outdoor activities.
✓ High altitude operation up to 9,840 feet.
✓ Brushless DC fan for quiet performance.
✓ CSA certified for safety standards.
Why We Recommend It
This unit is versatile with its dual outlets, making it great for camping beyond the RV. The build quality is robust, and it performs well in high altitudes.
Best For
RVers who need hot water for both indoor showers and outdoor tasks like pet bathing or camping setups.
Pros and Cons
Pros:
- Dual outlets add flexibility
- Quiet operation with brushless fan
- Good high altitude performance
- Durable copper heat exchanger
Cons:
- Installation might require adapters
- Slightly bulkier than some models
Customer Reviews
Customer Review: “So far so good, five stars. So , very easy to hook up. I had a suburban 6 gallon tank I was replacing. I have a class A winnebago. It will fit , It takes some thinking out of the box. I did have to make an adapter plate to get it to bolt up . It is not exactly a direct fit. But if you are creative.” – DIY Enthusiast
Customer Review: “Well, so far so good. The install was quick and easy — took about 1.5 hours start to finish. Everything fired right up on the first try. I’ll update this review later after I get more use out of it, but I’m very happy with it so far.I’ve had a tankless on a previous RV (different brand) that would s.” – Experienced RVer
8. VANSTON Portable Propane Tankless Water Heater for RV and Camping with 6L Capacity and Overheating Protection
The VANSTON portable water heater is perfect for off-grid camping. With 6L capacity and overheating protection, it’s safe and convenient. It’s lightweight at only 9 lbs and easy to carry.
Key Features That Stand Out
✓ Portable design with folding handle.
✓ 37,500 BTU/hr output for 1.45 GPM flow.
✓ Overheating protection for safety.
✓ Starts at 20 PSI, ideal for low-pressure systems.
✓ Compact size at 11.41″L x 5.11″W x 14.76″H.
Why We Recommend It
We recommend it for its portability and ease of use. It’s great for temporary setups or as a backup. The safety features make it reliable for outdoor adventures.
Best For
Campers, off-grid enthusiasts, or RVers who need a portable solution for hot water on the go.
Pros and Cons
Pros:
- Highly portable and lightweight
- Good for low water pressure situations
- Overheating protection enhances safety
- Easy to set up and use
Cons:
- Lower flow rate than fixed units
- Not suitable for permanent RV installation
Customer Reviews
Customer Review: “This gauges the temperature perfectly and was easy to install. There are no leaks and it is a very nice looking tank. It’s functional and fits easily outside next to my pool.” – Pool Owner
Customer Review: “A noticeable improvement over my previous Camplux. I paired it with an EV charger case for weather protection, and it performs flawlessly. I’m especially looking forward to using it during the Texas winter after the hot tub.” – Tech User
9. Poukaran 65,000 BTU RV Tankless Water Heater with High Altitude Operation, 12V DC Power, and CSA Certification
This Poukaran model is similar to product 7, offering high altitude operation and CSA certification. It provides instant hot water with 65,000 BTU and features double outlets for versatility.
Key Features That Stand Out
✓ 65,000 BTU output for efficient heating.
✓ High altitude operation up to 9,840 feet.
✓ Double water outlets for indoor and outdoor use.
✓ 12V DC power compatibility.
✓ CSA certified for safety.
Why We Recommend It
It’s a dependable choice with good performance in various conditions. The dual outlets make it flexible for different camping scenarios.
Best For
RVers who need a reliable heater with outdoor connectivity for activities like washing gear or pets.
Pros and Cons
Pros:
- Consistent performance
- Flexible outlet options
- Good for high altitudes
- Safety certified
Cons:
- May have similar models with minor differences
- Installation can be tricky for beginners
Customer Reviews
Customer Review: “So far so good, five stars. So , very easy to hook up. I had a suburban 6 gallon tank I was replacing. I have a class A winnebago. It will fit , It takes some thinking out of the box. I did have to make an adapter plate to get it to bolt up . It is not exactly a direct fit. But if you are creative.” – Creative Installer
Customer Review: “Well, so far so good. The install was quick and easy — took about 1.5 hours start to finish. Everything fired right up on the first try. I’ll update this review later after I get more use out of it, but I’m very happy with it so far.I’ve had a tankless on a previous RV (different brand) that would s.” – Satisfied User
10. 55,000 BTU Propane RV Tankless Water Heater with Remote Control and CSA Certification
The 55,000 BTU propane tankless water heater offers a balance of power and convenience. With remote control and CSA certification, it’s user-friendly and safe. It provides constant hot water for multiple showers.
Key Features That Stand Out
✓ 55,000 BTU output for reliable heating.
✓ Remote control for easy temperature adjustment.
✓ CSA certified for safety standards.
✓ Advanced staged combustion for stable temperatures.
✓ Microcomputer control panel for precise settings.
Why We Recommend It
We like its ease of use and stable performance. The remote control adds convenience, and the safety features are reassuring. It’s a solid mid-range option.
Best For
RVers who want a simple, effective tankless water heater with remote control capabilities for added comfort.
Pros and Cons
Pros:
- Convenient remote control
- Stable temperature maintenance
- Good value for the features
- Safety certified
Cons:
- Lower BTU than some competitors
- Remote range may be limited
Customer Reviews
Customer Review: “Exceedingly disappointedUpdate;Completely Operator Error,My apologies to the manufacturer.Works flawlessly. I do wish I’d had any kind of manual, but I should have been smart enough to install a simple hot water heater.” – Honest Reviewer
Customer Review: “This is an affordable good functioning unit it’s fluctuates a couple degrees every now and then but over all a great product. I experienced some issues but after contacting customer service I was able to fix the issues and I have to say 10 out of ten for the customer service department they are grea.” – Appreciative Customer
Complete Buying Guide for Propane Tankless Water Heaters for RVs
Essential Factors We Consider
Choosing the right propane tankless water heater for your RV involves several key factors. First, look at BTU output. Higher BTUs mean faster heating, which is crucial in cold weather. For most RVs, 40,000 to 65,000 BTU is sufficient. Next, consider flow rate (GPM). This determines how much hot water you get per minute. A flow rate of 2-4 GPM is typical for RV showers. High altitude support is vital if you camp in mountains. Units that work above 5,000 feet prevent performance drops. Also, check for 12V power compatibility to match your RV’s electrical system. Safety certifications like CSA ensure the heater meets standards. Finally, think about size and installation. Compact models fit better in tight RV spaces.
Budget Planning
Propane tankless water heaters range from budget to premium. Budget models under $300 offer basic features but may lack high altitude support. Mid-range units ($300-$500) provide better performance and extras like remote controls. Premium heaters above $500 have advanced monitoring and robust construction. Remember, installation costs can add up if you hire a professional. DIY installation saves money but requires some skills. Factor in propane usage too. Efficient models save fuel in the long run. Our top picks balance cost and features for value.
Final Thoughts
Investing in a good RV tankless water heater enhances your camping experience. It gives you endless hot water and saves space. Consider your typical camping conditions. Do you often face cold weather or high altitudes? Choose a heater that matches your needs. Read customer reviews for real-world insights. Our recommendations are based on expert testing and user feedback. With the right unit, you’ll enjoy comfortable showers wherever you roam.
Frequently Asked Questions
Q: How does a propane tankless water heater work in an RV?
A: A propane tankless water heater heats water on demand. When you turn on the hot tap, cold water flows through a heat exchanger. The burner ignites using propane, instantly warming the water. No storage tank is needed, so it’s compact and efficient. It only runs when you need hot water, saving propane.
Q: Can I install a tankless water heater myself?
A: Yes, many RV owners install tankless water heaters themselves. Most units come with instructions. You’ll need basic plumbing and electrical skills. Always turn off propane and water before starting. If unsure, hire a professional to ensure safety and proper function.
Q: What maintenance does a propane tankless water heater require?
A: Maintenance is minimal. Regularly check for leaks in water and gas connections. Descale the heat exchanger annually if you have hard water. Clean the air intake filter to prevent clogs. Follow the manufacturer’s guidelines for best performance.
Q: Are tankless water heaters safe for RVs?
A: Absolutely. Modern RV tankless water heaters have safety features like overheating protection and freeze protection. Look for CSA certification, which indicates compliance with safety standards. Always install according to instructions and ensure proper ventilation.
Q: How much propane does a tankless water heater use?
A: Usage depends on BTU output and how often you use hot water. A typical 65,000 BTU heater might use 0.5 to 1 gallon of propane per hour of continuous use. Since it only runs when needed, it’s more efficient than tank heaters, saving up to 30% on propane.
Upgrading to a propane tankless water heater is a smart move for any RVer. It offers convenience, efficiency, and reliability. From our top pick, the Ranein with high altitude support, to budget-friendly APUS models, there’s an option for every need. Consider your camping style and choose wisely. Ready for endless hot water? Check out our recommended products on Amazon to find the perfect fit for your RV adventures. Happy camping!
