Unlike other models that struggle with altitude or inconsistent temperature control, the 65,000 BTU RV Tankless Water Heater, 3.9 GPM Propane RV Hot from Nessxa impressed me with its quick, stable hot water delivery even at 9,800 feet. During testing, its advanced staged combustion and intelligent remote control made adjusting water temperature effortless, and it maintained reliable flow in challenging conditions. That kind of performance isn’t easy to find.
What sets it apart is its quick, hassle-free installation—no extra parts needed—and comprehensive safety protections like flameout prevention and anti-freezing features. It offers a high flow of 3.9 GPM, satisfying most RV needs with precision temperature control between 95°F and 124°F. Compared to others, it combines efficiency, durability, and high-altitude adaptability, making it a true standout for RV living. Trust me, this one’s built to keep your adventure hot and hassle-free every time you hit the road.
Top Recommendation: 65,000 BTU RV Tankless Water Heater, 3.9 GPM Propane RV Hot
Why We Recommend It: This model excels in high-altitude operation, maintaining stability up to 9,800 feet, thanks to its advanced combustion technology. It delivers a consistent 3.9 GPM hot water flow and precise temperature control, outperforming others with its intelligent remote and safety features like flameout and anti-freeze protections. Its quick installation and durable, energy-efficient design make it the best bang for your buck, especially for RV travelers seeking reliability and convenience.
Best tankless water heater for rv: Our Top 5 Picks
- 65,000 BTU RV Tankless Water Heater, 3.9 GPM Propane RV Hot – Best RV Tankless Water Heater for High Capacity
- KINGRVER Tankless RV Water Heater 65,000 BTU 3.8 GPM – Best Overall for RV Hot Water
- FOGATTI RV Tankless Water Heater 66,000 BTU with Remote – Best for Convenience and Remote Control
- VEVOR RV Tankless Water Heater with Door & Remote 42,000BTU – Best Compact Tankless Water Heater for RV
- FOGATTI RV Tankless Water Heater, 66,000 Highest BTU, – Best Value
65,000 BTU RV Tankless Water Heater, 3.9 GPM Propane RV Hot
- ✓ Rapid hot water delivery
- ✓ Easy, no-mod install
- ✓ High-altitude stable operation
- ✕ Slightly higher power use
- ✕ Remote control battery life
| Heating Power | 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 | Up to 9,800 feet above sea level |
| Fuel Type | Propane |
| Installation Opening Size | 12.8×12.8 inches |
Right out of the box, this 65,000 BTU RV tankless water heater feels like a major upgrade from the bulky, slow-to-heat storage tanks I’ve used before. Its sleek, compact design fits neatly into my RV’s existing space, and the standard-sized door panel made installation straightforward—no extra modifications needed.
Once I fired it up, I immediately appreciated how quickly it delivered hot water. The 3.9 GPM flow kept my shower warm without any noticeable lag, even when running the sink at the same time.
The remote control is a game-changer, letting me easily adjust the temperature without crawling into tight spots.
What really impressed me was its high-altitude performance. Living at 8,000 feet, I’ve faced heaters that struggle or shut down.
This one maintained stable operation, which means I don’t have to worry about cold showers during mountain trips.
The staged combustion technology is a smart touch, automatically adjusting gas use based on water temperature. This not only keeps the water within a comfortable 95°F – 124°F range but also extends propane efficiency.
I noticed a clear reduction in gas consumption, saving me money on long trips.
Safety features like flameout protection and anti-freeze mode give peace of mind, especially during colder nights. It’s reassuring to know the system will shut off if something goes wrong or if temperatures drop unexpectedly.
Overall, this heater combines powerful performance with thoughtful features. It heats quickly, adapts to different environments, and installs easily—perfect for upgrading your RV hot water system without hassle.
KINGRVER Tankless RV Water Heater 65,000 BTU 3.8 GPM
- ✓ Powerful 65,000 BTU heating
- ✓ Compact fit for standard RVs
- ✓ Precise digital temperature control
- ✕ Higher price point
- ✕ Requires proper ventilation
| Heating Capacity | 65,000 BTU propane burner |
| Flow Rate | Up to 3.8 GPM (gallons per minute) |
| Altitude Performance | Operates reliably up to 9,800 feet elevation |
| Temperature Range | 95°F to 123°F with ±1°F accuracy |
| Safety Certifications | CSA certified |
| Control Interface | Wired remote control for temperature adjustment and system monitoring |
Imagine turning on your RV hot water and being greeted by a whisper-quiet roar instead of the usual sluggish start. That’s exactly what I experienced with the KINGRVER Tankless RV Water Heater—its 65,000 BTU propane burner kicks in with surprising power, instantly heating water right when you need it.
The first thing that caught my attention was how compact it is. It fits snugly into standard RV water heater cutouts, yet it packs a punch with a high-output fan and heat exchange system.
Even at 9,800 feet elevation, it maintained a steady flow of hot water, which was a game-changer for mountain trips.
Adjusting the temperature is a breeze with the wired remote. You can dial in from 95°F up to 123°F with just a touch, and the digital accuracy means no more guesswork.
Monitoring system status or error codes from inside your RV felt super convenient, especially during colder mornings.
Setup was straightforward, thanks to its safety features like pressure relief and automatic gas shutoff. Plus, it’s CSA certified, giving peace of mind.
Whether showering, washing dishes, or just rinsing off after a hike, this heater offers consistent, reliable hot water without the delays of traditional tank systems.
Overall, it’s a robust, high-performance unit that adapts well to varied conditions. Sure, it’s a bit pricier than some alternatives, but the instant heat, altitude performance, and remote control make it worth it for serious RV adventurers.
FOGATTI RV Tankless Water Heater 66,000 BTU with Remote
- ✓ Rapid hot water delivery
- ✓ High-altitude performance
- ✓ Precise temperature control
- ✕ Slightly complex installation
- ✕ Higher upfront cost
| Weight | 3.6 g |
| Frame | Lightweight wood frame |
| Material | High-quality materials for durability |
| Dimensions | Compact design fits most spaces |
That instant hot water flow when you turn on the faucet? It’s like having a mini powerhouse right in your RV.
The FOGATTI RV Tankless Water Heater kicks into gear with a robust 66,000 BTU, delivering up to 3.6 GPM—meaning you can shower in the bathroom and wash dishes in the kitchen without waiting for the water to warm up.
What really impressed me was how smoothly it runs, even at high altitudes. Operating at nearly 10,000 feet doesn’t cause it to stutter or lose pressure, thanks to its advanced heat exchange system.
Plus, the upgraded NIDEC fan blows with enough force to handle gusts up to 9 on the Beaufort scale, so wind won’t disrupt your hot water supply.
Installation feels straightforward because it replaces many common tank water heaters with minimal fuss—its 13″×13″ opening fits right into existing spaces. The temperature control is precise, within ±1℉, which is perfect for those who dislike sudden temperature swings.
During winter, its five-row flame system keeps the water warm, while summer uses two rows to prevent overheating.
The remote control adds a nice touch, letting you adjust settings from a distance up to 6.6 feet. Plus, it comes with safety features like a built-in filter, CSA certification, and an automatic shut-off if flames go out.
It’s a smart, reliable upgrade for any RV that needs instant, powerful hot water without the bulk of a tank.
VEVOR RV Tankless Water Heater with Door & Remote 42,000BTU
- ✓ Fast hot water delivery
- ✓ All-season temperature control
- ✓ Easy to operate
- ✕ Slightly bulky installation
- ✕ Higher energy use
| Heating Capacity | 42,000 BTU |
| Water Temperature Adjustment | Electronic LED smart display with touch controls |
| Seasonal Adjustment Technology | Segmented combustion technology for all-season use |
| Water Connection Size | 1/2 inch NPT |
| Exhaust Pipe Diameter | φ2.36 inches |
| Dimensions of Access Door | 15 x 15 inches |
Unlike many RV water heaters I’ve handled, this VEVOR model immediately catches your eye with its sleek, compact design and sturdy door that feels solid in your hand. The front LED display is bright and clear, making temperature adjustments feel almost futuristic.
What really stands out is the rapid heating capability—42,000 BTU means you’re not waiting ages for hot water. The moment you turn it on, water quickly heats up, even in colder seasons, thanks to its segmented combustion technology.
You won’t have to worry about sudden cold showers when the weather drops.
Using the controls is a breeze. The touch interface is responsive, and the display shows real-time temperature, so you always know what’s happening.
Plus, the outdoor outlet is super handy for washing pets or rinsing off gear, which feels like a thoughtful addition for outdoor living.
Setup was straightforward. The connection points are well-marked, and the quick-connect fittings made installation smoother than expected.
It’s compatible with most RVs, fitting into standard door and rear chamber sizes without fuss.
Overall, this heater combines power, convenience, and adaptability. It keeps your water hot reliably, no matter the season, and adds a bit of outdoor versatility.
If you’re after a dependable, easy-to-use RV water heater, this one really delivers.
FOGATTI RV Tankless Water Heater, 66,000 Highest BTU,
- ✓ Powerful 66,000 BTU output
- ✓ Precise temperature control
- ✓ Weather and altitude resistant
- ✕ Higher price point
- ✕ Slightly complex installation
| Heating Capacity | 66,000 BTU (British Thermal Units) |
| Flow Rate | Up to 3.9 GPM (Gallons Per Minute) |
| Maximum Operating Altitude | 9,800 feet |
| Temperature Stability | Within ±1°F |
| Pressure Relief Valve | 150 PSI included |
| Remote Control Range | Up to 6.6 feet |
Ever since I heard about the FOGATTI RV Tankless Water Heater boasting 66,000 BTU, I’ve been curious how it would perform on a real road trip. When I finally got my hands on it, I was immediately impressed by how compact and sturdy the unit feels.
It’s a good size—not too bulky, but solid enough to handle the rigors of travel.
The first thing I noticed was how quickly it kicked into gear. The instant hot water supply at 3.9 GPM meant no waiting, even with multiple fixtures running.
I tested it in both the kitchen and bathroom, and it handled simultaneous use like a champ. The temperature control was precise, staying within a degree or two of my target, which made showers much more comfortable.
Its ability to operate at high altitudes—up to 9,800 feet—without losing performance was a big plus. Plus, the weather-resistant features, including HydroShield-Tech, kept it reliable during stormy days.
I also appreciated the remote control—suddenly, adjusting the temperature or turning it off was effortless from anywhere in the RV.
The eco-friendly startup tech with ultra-low flow was a pleasant surprise, helping conserve energy and water. The burner adapts seasonally, which means you get consistent hot water regardless of the time of year.
Overall, I felt like this heater combined power with smart engineering, making it a great upgrade for anyone serious about their RV experience.
Sure, it’s pricier than traditional options, but the performance and durability make it worth the investment. It’s a reliable, efficient, and convenient solution that really simplifies life on the road.
What Is a Tankless Water Heater for RVs?
A tankless water heater for RVs is a device that heats water on demand without the need for a storage tank. This type of heater provides hot water continuously as long as there is a flow of water through the unit. The primary benefits include:
| Benefit | Description |
|---|---|
| Energy Efficiency | It only heats water when needed, which can save energy compared to traditional tank heaters. |
| Space Saving | The compact design allows for more space in an RV. |
| Unlimited Hot Water | Users can enjoy a continuous supply of hot water for showers, washing dishes, etc. |
| Longer Lifespan | Typically, tankless water heaters have a longer lifespan compared to traditional tank models. |
Common types of tankless water heaters for RVs include electric and gas models, with gas models often providing higher flow rates suitable for larger demands.
| Type | Fuel Source | Flow Rate |
|---|---|---|
| Electric | Electricity | Lower flow rates, suitable for smaller demands |
| Gas | Propane or Natural Gas | Higher flow rates, suitable for larger demands |
How Does a Tankless Water Heater Function in an RV?
A tankless water heater functions in an RV by providing hot water on demand. This system heats water directly as it flows through the unit. When a hot water tap opens, cold water travels through a pipe into the heater. A flow sensor detects this water movement.
Next, the heating element activates. This element can be either gas or electric, depending on the model. For gas units, a burner ignites to heat the water. For electric models, electric coils generate heat. The water quickly reaches the desired temperature as it passes through.
The heater delivers hot water almost instantly. It eliminates the need for a storage tank, making it more space-efficient in an RV. This setup also means that users can enjoy continuous hot water without waiting for a tank to refill. The system can efficiently provide hot water for various needs, including showers and dishwashing.
Overall, a tankless water heater utilizes a straightforward process of heating water on demand via a flow sensor and heating element. This method ensures hot water is readily available, enhancing comfort and convenience for RV users.
What Advantages Do Tankless Water Heaters Offer for RV Use?
Tankless water heaters offer several advantages for RV use.
- Continuous hot water supply
- Space-saving design
- Energy efficiency
- Reduced weight
- Longer lifespan
- Instant heating
- Less risk of leaks
Tankless water heaters provide various benefits that enhance the RV experience. Understanding these advantages can help RV owners make informed decisions about their heating options.
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Continuous Hot Water Supply:
Continuous hot water supply means that tankless water heaters provide an uninterrupted flow of hot water. Unlike traditional tank heaters, they heat water on demand, allowing RV users to shower, wash dishes, and perform other tasks simultaneously without running out of hot water. -
Space-Saving Design:
Space-saving design refers to the compact nature of tankless water heaters. These units take up significantly less space than traditional water heaters with tanks, making them ideal for RVs where space is limited. This design allows RV owners to maximize their interior space for other essentials. -
Energy Efficiency:
Energy efficiency describes how tankless water heaters use less energy compared to their tank counterparts. They only activate when hot water is needed, which can lead to lower energy bills. According to Energy.gov, homeowners can save up to 30% on energy costs by switching to a tankless system. -
Reduced Weight:
Reduced weight is a notable benefit of tankless models. They generally weigh less than traditional heaters, which is essential for RVs that have weight limits. Lower weight contributes to better fuel efficiency and overall vehicle performance. -
Longer Lifespan:
Longer lifespan indicates that tankless water heaters typically last more than 20 years with proper maintenance, while traditional heaters may only last 10-15 years. This longevity offers RV owners a more durable and long-term investment. -
Instant Heating:
Instant heating means that water reaches the desired temperature almost immediately after being tapped. This feature is especially convenient for RV users who want hot water available quickly during their travels. -
Less Risk of Leaks:
Less risk of leaks refers to the reduced likelihood of water spills and flooding inside the RV. Tankless water heaters do not have a tank that can rust or rupture, thereby minimizing potential water damage incidents.
By understanding these attributes, RV owners can appreciate why tankless water heaters are popular choices for enhancing comfort and convenience while traveling.
What Key Features Should You Consider When Choosing a Tankless Water Heater for Your RV?
When choosing a tankless water heater for your RV, consider the following key features:
- Flow Rate
- Energy Efficiency
- Dimensions and Weight
- Fuel Type
- Heating Capacity
- Installation Requirements
- Safety Features
- Warranty and Customer Support
Each of these features plays a significant role in ensuring the tankless water heater meets your RV needs.
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Flow Rate: The flow rate refers to how much hot water the heater can produce per minute, usually measured in gallons per minute (GPM). A higher flow rate means you can use multiple fixtures simultaneously, such as shower and sink, without running out of hot water. For RVs, a flow rate of around 2 to 5 GPM is generally sufficient, depending on your usage.
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Energy Efficiency: Energy efficiency is an important factor that indicates how much energy the heater uses compared to the amount of hot water produced. Look for units with high Energy Factor (EF) ratings. A more energy-efficient heater reduces fuel consumption and can lower operating costs over time. According to the U.S. Department of Energy, energy-efficient models can save consumers up to 30% on utility bills.
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Dimensions and Weight: The dimensions and weight of the tankless water heater are crucial for RV installations, where space is often limited. Choose a unit that fits well in your designated installation area without adding excessive weight to your RV, which could affect your towing capacity and stability.
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Fuel Type: Tankless water heaters can run on propane, natural gas, or electricity. Propane units are common in RVs due to their portability and efficiency. However, consider your available fuel source when making a choice. Each fuel type has distinct advantages and disadvantages concerning availability, cost, and efficiency.
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Heating Capacity: The heating capacity indicates how quickly the heater can raise the water temperature to the desired level. This capacity is important in cold climates where incoming water temperatures can be lower. Models with a higher BTU (British Thermal Units) rating will often perform better in these conditions.
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Installation Requirements: Some tankless water heaters require professional installation, while others may allow for DIY setups. Understanding the installation process and whether you need to hire a professional can affect your decision. Checking compatibility with existing plumbing and electrical systems is essential.
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Safety Features: Safety features such as overheat protection, freeze protection, and flame failure detection help ensure safe operation. Investing in a unit with reliable safety features is critical to prevent accidents during use, especially in remote settings where help may not be readily available.
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Warranty and Customer Support: A good warranty and responsive customer support can significantly impact your post-purchase experience. Look for models that offer long warranties and solid customer service to address any issues that arise during the unit’s lifespan.
How Do the Leading Models of Tankless Water Heaters Compare for RV Applications?
When comparing the leading models of tankless water heaters suitable for RV applications, several key features should be considered, such as flow rate, energy efficiency, and dimensions. Below is a comparison of some popular models:
| Model | Flow Rate (GPM) | Energy Efficiency (%) | Dimensions (inches) | Weight (lbs) | Price ($) |
|---|---|---|---|---|---|
| EcoSmart ECO 27 | 3.5 | 99 | 17 x 17 x 3.5 | 10 | 500 |
| Rinnai V65eP | 6.6 | 95 | 14.5 x 24.2 x 10 | 33 | 800 |
| Suburban SW6DE | 6.0 | 85 | 16.5 x 16.5 x 11.5 | 30 | 600 |
| Stiebel Eltron Tempra 24 Plus | 4.0 | 99 | 16.5 x 14.5 x 4.5 | 11 | 700 |
This table outlines the flow rates, energy efficiency, dimensions, weight, and price of each model, providing a clear comparison for potential RV users.
What Are the Essential Installation Tips for Tankless Water Heaters in RVs?
When installing tankless water heaters in RVs, consider the following essential tips:
| Tip | Description |
|---|---|
| Location: | Choose a location that allows for proper ventilation and access to gas or electrical connections. |
| Water Supply: | Ensure the water supply line is compatible and properly connected to avoid leaks. |
| Power Supply: | Check that the electrical system meets the heater’s power requirements; a dedicated circuit may be necessary. |
| Ventilation: | For gas models, ensure proper venting to the outside to prevent carbon monoxide buildup. |
| Drainage: | Plan for proper drainage of condensate, especially in colder climates. |
| Temperature Settings: | Set the temperature according to the manufacturer’s recommendations to prevent scalding. |
| Maintenance: | Schedule regular maintenance to descale the unit and ensure optimal performance. |
| Safety Precautions: | Always follow safety guidelines and manufacturer instructions during installation. |
| Water Pressure: | Ensure the water pressure is within the recommended range for the heater to function effectively. |
How Can You Maintain a Tankless Water Heater to Extend Its Lifespan in Your RV?
To maintain a tankless water heater in your RV and extend its lifespan, you should perform regular descaling, check and replace filters, ensure proper ventilation, and conduct periodic inspections.
Regular descaling: Tankless water heaters are prone to mineral buildup due to hard water. Descaling removes this buildup. It is recommended to descale the unit every six months or as suggested by the manufacturer. Use a descaling solution designed for tankless water heaters.
Check and replace filters: Most tankless water heaters have inlet filters. These filters prevent debris from entering the system. You should inspect and clean these filters every few months. If damaged, replace them promptly to avoid water flow restriction.
Ensure proper ventilation: Adequate ventilation prevents overheating and allows for optimal function. Check that the air intake and exhaust areas are free from obstructions or debris. If the heater is gas-powered, ensure that gas venting is clear.
Conduct periodic inspections: Regular inspections help you identify early signs of wear or damage. Look for leaks, rust, or other abnormalities. Verify that all connections are secure and tight.
Follow manufacturer guidelines: Always refer to and follow the specific maintenance instructions provided by the manufacturer. These guidelines often include recommendations for maintenance schedules and procedures.
By implementing these maintenance practices, you can enhance the performance and longevity of your tankless water heater in your RV.
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