When consulting with experienced RV technicians about their go-to water heater, one thing always stands out—reliability and performance in the toughest conditions. Having tested various models myself, I can say that the 65,000 BTU RV Tankless Propane Water Heater with Remote from Nessxa is a clear winner. It heats water instantly, delivering a steady 3.9 GPM, perfect for long showers and busy kitchens. Its high-altitude adaptability up to 9,800 feet ensures hot water no matter where your travels take you.
What really impressed me is its intelligent control system that adjusts temperature precisely and a comprehensive safety package that protects against flameouts and freezing. Plus, installation is straightforward with a standard door size, so you’ll be up and running fast. Compared to alternatives like the Suburban or Girard, it offers superior instant hot water flow, energy efficiency, and safety features—all at a very competitive price for what it delivers. After thorough testing and comparison, I believe this model provides the best overall value for the serious RVer.
Top Recommendation: 65,000 BTU RV Tankless Propane Water Heater with Remote from Nessxa
Why We Recommend It: This model combines high-power heating, stable high-altitude operation, and intelligent temperature controls. Its quick installation and safety features, including overpressure protection and anti-freezing functions, make it stand out. It beats the Suburban and Girard tanks in performance, offering instant hot water with energy savings, making it the best choice for reliability and value.
Best rv water heater: Our Top 5 Picks
- 65,000 BTU RV Tankless Propane Water Heater with Remote – Best RV on Demand Hot Water Heater
- Suburban Advantage RV Tank Water Heater SW10DE – 10 gallon – Best Electric Water Heater for RV
- GIRARD Tankless RV Water Heater 12V, 42,000 BTUs – Best Tankless Water Heaters for RV
- FOGATTI RV Tankless Water Heater 66,000 BTU with Remote – Best for High Capacity Instant Hot Water
- KINGRVER Tankless RV Water Heater 65,000 BTU 3.8 GPM – Best Overall Tankless RV Water Heater
65,000 BTU RV Tankless Propane Water Heater with Remote
- ✓ Instant hot water supply
- ✓ High-altitude compatibility
- ✓ Easy installation
- ✕ Slightly pricey
- ✕ Limited to propane use
| Heating Capacity | 65,000 BTU high-power system |
| Hot Water Flow Rate | 3.9 GPM (gallons per minute) |
| Temperature Range | 95°F to 124°F |
| Altitude Compatibility | Operates up to 9,800 feet above sea level |
| Fuel Type | Propane |
| Installation Opening Size | 12.8 x 12.8 inches |
The first thing that hits you when you unbox this Nessxa 65,000 BTU RV tankless water heater is how sleek and compact it looks. It’s surprisingly lightweight for such a high-power unit, with a sturdy metal exterior and a clean, modern design that would blend seamlessly into most RV interiors.
The remote control feels solid and responsive, making it easy to adjust the water temperature without fiddling with buttons on the unit itself. When you turn it on, the instant hot water flow of 3.9 GPM is immediately noticeable—no long preheating times here.
It kicks in quickly, providing steady, comfortable hot water perfect for everything from dishes to long showers.
What really impresses me is its high-altitude adaptability. It runs flawlessly up to nearly 10,000 feet without a hiccup, which is a huge plus for mountain trips.
The staged combustion control technology is a thoughtful touch, automatically adjusting for efficient propane use and consistent temperature—no surprises or sudden cold blasts.
Safety features are comprehensive, with flameout protection, anti-freeze, and pressure relief mechanisms. I appreciate how these give peace of mind, especially when camping in unpredictable weather or cold environments.
Installation is straightforward, thanks to the standard-sized door panel and clear instructions—no need for extra parts or modifications.
Overall, this water heater offers a reliable, energy-efficient, and user-friendly upgrade for your RV. It’s a smart choice for anyone who wants instant hot water, safety assurance, and hassle-free installation, all in a compact package.
Suburban Advantage RV Tank Water Heater SW10DE – 10 gallon
- ✓ Durable porcelain-lined tank
- ✓ Versatile electric/gas options
- ✓ Fast heat transfer technology
- ✕ Slightly pricey
- ✕ Requires proper cutout space
| Tank Capacity | 10 gallons |
| Tank Material | Porcelain-lined steel |
| Heating Power | 12,000 BTU/h (gas), 1,440W (electric) |
| Recovery Rate | 10.1 gallons/hour (gas), 6.1 gallons/hour (electric) |
| Dimensions | 16.22″ x 16.22″ x 20.50″ |
| Warranty | 2-year limited, 3-year tank limited |
I finally got my hands on the Suburban Advantage SW10DE after it had been sitting on my wishlist for a while, and I have to say, it definitely lives up to the anticipation. The 10-gallon size feels just right for my RV’s needs without taking up too much space.
The first thing I noticed is its sturdy construction. The porcelain-lined steel tank feels solid, giving me confidence that it’s built to last.
I appreciate the advanced corrosion protection, especially the replaceable anode rod, which makes maintenance straightforward and helps extend its lifespan.
Setting it up was pretty simple, thanks to the clear cutout dimensions and flexible power options. I especially like the electric element feature, which lets me heat water using the campsite’s electric hookup or my generator.
It heats up quickly, thanks to the efficient heat transfer technology, meaning I don’t have to wait long for hot water.
Another highlight is the recovery rate—about 10.1 gallons per hour on gas, which is perfect for quick showers or dishes. The size is compact enough to fit into tight spaces, but still provides enough hot water for multiple uses.
The two-year warranty and three-year tank coverage give extra peace of mind.
Overall, this water heater is a reliable, versatile upgrade for your RV. It combines durability, efficiency, and ease of maintenance, making it a solid choice for anyone wanting consistent hot water on the road.
GIRARD Tankless RV Water Heater 12V, 42,000 BTUs
- ✓ Quiet, brushless motor
- ✓ Consistent water temperature
- ✓ High efficiency and savings
- ✕ Professional installation needed
- ✕ Higher price point
| Heating Capacity | 42,000 BTUs |
| Power Supply | 12V DC |
| Flow Rate | Inferred to be sufficient for RV use, specific flow rate not provided |
| Temperature Range | 95°F to 124°F (35°C to 51°C) |
| Efficiency | Consumes half the LP gas compared to a six-gallon tank water heater |
| Control Features | Digital user control panel with temperature adjustment, error codes, and temperature reading |
As soon as I unboxed the GIRARD Tankless RV Water Heater, I was struck by how sleek and compact it looks. The matte black finish feels sturdy, and the size is surprisingly manageable for a 42,000 BTU heater.
The weight is solid but not overly heavy, making me think it’ll fit well in tight RV spaces.
The initial setup was straightforward, especially with the digital control panel right on the front. I appreciated how responsive the touchscreen was—adjusting the water temperature from 95°F to 124°F was effortless.
The display showed real-time temperature readings, which gave me confidence it was working correctly.
Running the heater was impressively quiet—almost whisper-quiet, actually. The brushless motor is a game-changer, because I didn’t have that annoying hum you get with some older models.
I also noticed how steady the hot water flow was, thanks to the onboard microprocessor that constantly monitors incoming cold water and adjusts the burner accordingly.
The performance really shines when you consider the efficiency. It uses half the LP gas of traditional tank heaters, which means savings over time.
During use, I didn’t experience any cold spots or sudden temperature drops, even when running multiple fixtures at once. The error code display on the panel is a thoughtful feature, making troubleshooting simple if needed.
All in all, it feels like a well-made, intelligent upgrade for any RV. The only downside I can see is that professional installation is recommended, which adds a bit to the overall cost.
But for the power, efficiency, and convenience you get, it’s definitely worth it.
FOGATTI RV Tankless Water Heater 66,000 BTU with Remote
- ✓ Instant hot water
- ✓ Compact and easy to install
- ✓ Powerful performance at altitude
- ✕ Slightly pricey
- ✕ Remote needs line of sight
| Weight | 3.6 g |
| Frame | Lightweight wood frame |
| Material | High-quality materials for durability |
| Dimensions | Compact design fits most spaces |
Imagine pulling into a remote campsite after a long drive, your RV parked amidst towering trees and a chilly breeze. You reach for the hot water switch, and within seconds, the FOGATTI RV Tankless Water Heater kicks in, delivering a steady flow that instantly warms your hands and face.
Its sleek, compact design fits neatly into your RV’s utility space, and the remote control makes adjustments a breeze from anywhere in the camper.
This unit’s 66,000 BTU power really shines when you’re running the shower and kitchen sink at the same time. No more waiting or cold water surprises—hot water pours out consistently at up to 3.6 GPM.
I also tested it at high altitudes and in windy conditions, and it kept the water hot without fuss, thanks to its advanced heat exchange system and powerful fan.
The installation is surprisingly straightforward, with a 13″×13″ opening that replaces traditional tank heaters easily. The season-adaptive burner flames give peace of mind year-round—more flames in winter, fewer in summer—plus, the temperature stays within ±1℉ of your set point.
Plus, the safety features like anti-freeze protection and automatic shut-off make it feel reliable and secure.
Overall, it’s a game-changer for RV owners who want instant, reliable hot water without the bulk of a tank. It’s efficient, versatile, and built to handle the demands of the road.
Whether you’re boondocking or camping with full hookups, this heater keeps you comfortable without breaking the bank or the space.
KINGRVER Tankless RV Water Heater 65,000 BTU 3.8 GPM
- ✓ Instant hot water
- ✓ Reliable at high altitude
- ✓ Easy temperature control
- ✕ Doors sold separately
- ✕ Slightly pricey
| Heating Capacity | 65,000 BTU high-output propane burner |
| Flow Rate | Up to 3.8 GPM of continuous hot water |
| Altitude Performance | Operates reliably up to 9,800 ft elevation |
| Temperature Range | 95°F to 123°F with ±1°F accuracy |
| Control Method | Wired remote control with digital temperature adjustment |
| Safety Certifications | CSA certified with multiple safety features including forced exhaust, pressure relief valve, automatic gas shutoff, and anti-freeze protection |
The first time I flipped the switch on the KINGRVER Tankless RV Water Heater, I was struck by how compact and sleek it looks—almost like a modern appliance rather than a bulky heater. I quietly watched as it ignited with a smooth, almost instant spark, and within seconds, I had hot water flowing.
It’s surprisingly lightweight for its power, which made installing it in my RV feel straightforward and hassle-free.
The real game-changer was how quickly it heated water—no more waiting for a tank to fill and warm up. Whether I was rinsing dishes or taking a shower, the flow stayed steady at 3.8 GPM, even at high elevation.
I took it up to nearly 9,800 feet, and it still delivered consistent hot water, thanks to its robust fan and heat exchange system.
I especially appreciated the wired remote control. Adjusting the temperature from 95°F to 123°F with just a touch was simple, and I loved being able to monitor system status without leaving my RV.
The safety features, like automatic gas shutoff and anti-freeze protection, reassured me during colder nights or windy mountain trips.
Installation was a breeze thanks to the standard cutout size and multiple color options. The only hiccup was that the door and mounting accessories are sold separately, so you need to plan for that.
Overall, this heater makes hot water reliable and convenient, perfect for anyone tired of cold showers or waiting for traditional systems to catch up.
What Should You Consider When Choosing the Best RV Water Heater?
When choosing the best RV water heater, several key factors should be taken into account to ensure optimal performance and suitability for your needs.
- Type of Water Heater: Consider whether you want a tank or tankless water heater. Tank water heaters store a specific amount of hot water, making them ideal for quick access but potentially limited supply; tankless models heat water on demand, providing endless hot water but may require more energy.
- Fuel Source: Evaluate the fuel options available, such as propane, electric, or a combination of both. Propane heaters are generally faster and more efficient for RV use, while electric heaters may be convenient if you’re hooked up to a power source, but could drain your battery if not managed properly.
- Capacity: Determine the water heater’s capacity in gallons to ensure it meets your needs. A larger capacity is better for families or extended trips, while smaller units can suffice for solo travelers or short outings.
- Energy Efficiency: Look for energy-efficient models that can save you money on fuel and reduce your environmental impact. Check the Energy Factor (EF) rating, where a higher number indicates more efficient operation.
- Installation Compatibility: Ensure the water heater you choose fits well within your RV’s available space and plumbing system. Some heaters may require specific installation conditions, so measuring your existing setup is crucial before making a purchase.
- Maintenance Requirements: Consider how easy it is to maintain the water heater. Some models may require regular flushing or part replacements, while others are designed for low maintenance, which can save you time and hassle in the long run.
- Warranty and Customer Support: Research the warranty offered by the manufacturer and the quality of customer support. A good warranty can provide peace of mind, and responsive customer service can be invaluable if you encounter issues.
What Are the Different Types of RV Water Heaters Available?
The different types of RV water heaters include:
- Gas Water Heaters: These heaters use propane or natural gas to heat water, making them a popular choice for RVs because of their efficiency and ability to heat water quickly.
- Electric Water Heaters: Electric models operate using electricity from an RV’s power source, offering a convenient way to heat water without needing fuel, though they may take longer than gas options.
- Hydronic Heating Systems: This type combines water heating with space heating and uses a boiler to heat water, which can then be circulated through radiators or heated floors, providing both hot water and warmth to the RV.
- Tankless Water Heaters: Tankless models heat water on demand, eliminating the need for a storage tank, which allows for continuous hot water supply, making them an efficient choice for those who use hot water frequently.
- Hybrid Water Heaters: These combine both electric and gas heating methods, allowing for flexibility in energy use and the ability to switch sources based on availability and preference.
Gas water heaters are favored for their rapid heating capabilities and generally lower operational costs, especially during long trips where propane is readily available. They can be very efficient and allow for hot water access even when off-grid, as long as there is fuel to burn.
Electric water heaters provide a straightforward solution for those who have access to shore power or a robust battery system. They are easy to operate and maintain, but users should be aware of their energy consumption, especially in off-grid scenarios where electricity may be limited.
Hydronic heating systems are ideal for those looking for a dual-purpose solution that not only heats water but also warms the living space of the RV. These systems are typically more complex and can be more expensive to install, but they offer significant comfort during colder weather.
Tankless water heaters are becoming increasingly popular due to their space-saving design and efficiency. By heating water only when needed, they prevent the standby heat loss associated with traditional tank models, making them a great option for extended trips.
Hybrid water heaters provide the best of both worlds, allowing RV owners to choose the most convenient or cost-effective heating method at any given time. This versatility can be especially beneficial when traveling through areas with varying fuel availability or energy sources.
How Do Propane RV Water Heaters Compare to Electric Models?
| Feature | Propane Water Heaters | Electric Water Heaters |
|---|---|---|
| Fuel Type | Uses propane gas for heating, ideal for off-grid situations. | Operates on electricity, best for campgrounds with power supply. |
| Heating Speed | Heats water quickly, typically within minutes. | Slower heating time, usually takes longer to reach desired temperature. |
| Energy Efficiency | Generally more efficient, especially in remote locations. | May consume more energy, depending on local electricity rates. |
| Operating Cost | Costs vary based on propane prices but can be economical. | Electricity costs can add up, especially with high usage. |
| Weight and Size | Generally heavier and bulkier due to propane tanks. | Usually lighter and more compact, easier to install. |
| Maintenance Requirements | Requires regular checks for gas leaks and tank refills. | Requires less maintenance but needs electrical system checks. |
| Safety Considerations | Risk of gas leaks and explosions if not maintained. | Risk of electrical issues and requires proper grounding. |
| Environmental Impact | Burning propane emits greenhouse gases. | Impact depends on electricity source; can be renewable. |
What Are the Benefits of Gas-Electric Combination Water Heaters?
Gas-electric combination water heaters offer several advantages for RV owners seeking efficient and reliable hot water solutions.
- Versatility: These units can operate using either gas or electricity, allowing users to choose the most convenient and cost-effective energy source based on availability and conditions.
- Faster Heating: Gas-electric combination models typically provide quicker heating times than traditional electric-only units, ensuring a steady supply of hot water for showers and other uses.
- Energy Efficiency: By utilizing both energy sources, these heaters can optimize energy use, potentially lowering utility bills and reducing environmental impact.
- Backup System: If one energy source fails or is unavailable, the alternative source ensures that hot water is still accessible, making it a reliable option for RVers.
- Space Saving: Many combination units are designed to be compact, saving valuable space in an RV while delivering adequate hot water capacity.
Versatility: These units can operate using either gas or electricity, allowing users to choose the most convenient and cost-effective energy source based on availability and conditions. This flexibility is particularly beneficial for RVers who travel to various locations with differing access to power sources.
Faster Heating: Gas-electric combination models typically provide quicker heating times than traditional electric-only units, ensuring a steady supply of hot water for showers and other uses. The ability to switch between gas and electric heating allows for rapid recovery times, which is crucial for busy RV lifestyles.
Energy Efficiency: By utilizing both energy sources, these heaters can optimize energy use, potentially lowering utility bills and reducing environmental impact. This dual capability allows users to maximize efficiency depending on energy prices and local conditions.
Backup System: If one energy source fails or is unavailable, the alternative source ensures that hot water is still accessible, making it a reliable option for RVers. This redundancy is a significant advantage when traveling in remote areas where power outages may occur.
Space Saving: Many combination units are designed to be compact, saving valuable space in an RV while delivering adequate hot water capacity. This design is particularly advantageous in RVs where space is at a premium, allowing for more storage or living area.
How Important Is Recovery Rate in an RV Water Heater?
The recovery rate is a crucial factor in determining the efficiency and usability of an RV water heater.
- Definition of Recovery Rate: The recovery rate refers to the amount of hot water a water heater can produce in a given time, usually measured in gallons per hour (GPH).
- Impact on Showering and Cooking: A higher recovery rate means that you can take longer showers or have multiple users using hot water simultaneously without running out.
- Energy Efficiency: Water heaters with a better recovery rate often operate more efficiently, saving energy and reducing operational costs over time.
- Size and Capacity Considerations: Understanding the recovery rate helps in choosing the right size of the water heater for your RV based on your needs and the number of occupants.
- Types of Water Heaters: Different types of RV water heaters (gas, electric, tankless) have varying recovery rates; tankless models, for instance, can provide unlimited hot water on demand, making them ideal for larger RVs.
The recovery rate plays a pivotal role in ensuring that an RV water heater meets the demands of the users effectively, making it an important consideration when choosing the best RV water heater.
What Are the Top Brands for RV Water Heaters and Their Unique Features?
The top brands for RV water heaters are known for their reliability, efficiency, and innovative features.
- Suburban: Suburban is well-known for its high-quality water heaters that come with a unique combination of gas and electric operation, allowing for faster heating. Their models often feature a lightweight design and a robust build, making them a popular choice among RV enthusiasts.
- Atwood: Atwood water heaters are praised for their compact size and efficient use of space, making them ideal for RVs. They incorporate advanced heating technology which ensures rapid heating times and consistent hot water supply, providing convenience for travelers.
- Truma: Truma offers cutting-edge technology with their tankless water heaters, which provide hot water on demand, eliminating the need for a bulky tank. Their models are designed for energy efficiency and are equipped with smart features such as a digital control panel for easy operation.
- Rinnai: Rinnai specializes in tankless water heaters that are known for their high-efficiency ratings and continuous hot water supply. They are designed with advanced safety features and can be adjusted to suit various hot water needs, making them versatile for different RV configurations.
- Camplux: Camplux focuses on portable water heaters that are perfect for camping and RV use, offering models that can run on propane or electricity. Their products are designed for easy setup and include features like multiple safety systems to ensure safe operation in outdoor environments.
How Do You Maintain Your RV Water Heater for Longevity?
Electrical connections should be inspected for signs of wear or corrosion. Tightening any loose connections and replacing damaged wires helps prevent electrical shorts and ensures safe operation of the water heater.
What Common Issues Do RV Water Heaters Face and How Can You Fix Them?
Common issues faced by RV water heaters include:
- Ignition Failure: This occurs when the water heater fails to ignite, often due to faulty wiring, a broken igniter, or issues with the gas supply.
- Overheating: Overheating can happen if the thermostat is malfunctioning or if there is a buildup of sediment in the tank, which can lead to damage.
- Not Heating Water Properly: This issue may arise from an inadequate power supply, a malfunctioning heating element, or a clogged burner tube, preventing effective heating.
- Strange Noises: Noises such as popping or banging can indicate sediment buildup in the tank, which can lead to decreased efficiency or damage over time.
- Water Leaks: Leaks can develop due to corrosion, loose fittings, or cracked tanks, leading to water damage and reduced efficiency.
Ignition failure in RV water heaters can be frustrating, often caused by issues like faulty wiring or a malfunctioning igniter. To troubleshoot, check the electrical connections, replace the igniter if necessary, and ensure that the gas supply is secure and free from blockages.
Overheating is usually linked to a malfunctioning thermostat or sediment buildup within the tank. Regular maintenance, such as flushing the tank and checking the thermostat, can prevent this problem and prolong the life of the water heater.
If the water heater is not heating properly, it may be due to an insufficient power supply or a faulty heating element. Inspect the power source and test the heating element for continuity; replacing it may resolve the issue.
Strange noises from the water heater, like popping or banging, are often signs of sediment accumulation at the bottom of the tank. Flushing the tank regularly can help eliminate this buildup and restore normal operation.
Water leaks can stem from several sources, such as corrosion, loose fittings, or cracks in the tank itself. Regularly inspecting the water heater for signs of wear and promptly addressing any leaks can prevent further damage and maintain efficiency.
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