Top 7 Tankless Water Heaters for RVs

Steve Donaldson Master HVAC technician
Steve Donaldson
Master HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

Steve Donaldson Master HVAC technician
Steve Donaldson
Master HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

Hey there! If you're an RV enthusiast like me, you know how important it is to have a reliable and efficient water heater on board. That's why I've put together this roundup of the top 7 tankless water heaters for RVs. Whether you're planning a weekend getaway or embarking on a cross-country adventure, having a hot shower or warm water for washing dishes can make all the difference. So sit back, relax, and let me guide you through the best options out there. Let's dive in!

1
Fogatti RV Tankless Water Heater, Gen 2
✯ Conclusion: Reliable and efficient ✯
BUY NOW Amazon.com
8.7
2
GIRARD Tankless RV Water Heater - 12V Power, 42,000 BTUs
8.4
3
Fogatti Gen 2 RV Tankless Water Heater
Overall Verdict: Reliable and Convenient
BUY NOW Amazon.com
8
7
Kingrver RV Tankless Water Heater - On Demand Hot Water
Inconsistent but convenient
BUY NOW Amazon.com
5.7
1

Fogatti RV Tankless Water Heater, Gen 2

 in stock
Amazon.com
8.7
Conclusion: Reliable and efficient
The FOGATTI RV Tankless Water Heater is highly recommended for high altitude use, providing hot water instantly and working flawlessly even at high elevations. While the installation process is fairly simple, the instructions could be improved for better clarity, and there is an optional door for specific applications that may require an additional purchase. Overall, it is a reliable and efficient water heater for everyday use in RVs.
Efficient and Reliable
  • Recommended for high altitude use
  • Quick shipping and well-packaged
  • Fairly simple installation process
  • Provides hot water instantly
  • Can reach a temperature of 123 degrees without issue
  • Works flawlessly even at high elevations
Weaknesses
  • Instructions could be improved for better clarity
  • Optional door for specific applications may require an additional purchase

The FOGATTI RV Tankless Water Heater, 2.9 GPM, Gen 2, 12V with White Door and Remote Controller is the ultimate solution for RVers looking for a reliable and efficient water heating system. With its high altitude suitability mode, this water heater will provide an unprecedented experience even when driving to high altitude locations like the Denver plateau at 9800 feet. The staged combustion technology ensures optimal performance, preventing the water from getting too hot in the summer while still providing an ample supply of hot water. The easy installation process and outstanding quality make this water heater a top choice for everyday use in RVs.

Efficient and Powerful Heating Solution
  • High altitude suitability mode
  • Staged combustion technology
  • 2.9 GPM flow rate
  • 55,000 BTU heating power
  • InstaShower 8 Plus
  • Remote controller
2

GIRARD Tankless RV Water Heater – 12V Power, 42,000 BTUs

$799.00
$607.34
 in stock
Amazon.com
as of January 17, 2025 6:33 pm
8.7
Impressive performance
The GIRARD Tankless RV Water Heater, with its 42,000 BTUs and onboard microprocessor, offers excellent performance and precise temperature control. It is easy to install and works well with flow-restricted faucets, although some may find the temperature control requires occasional adjustments for consistent heat. Additionally, it's worth noting that the door/cover is not included and would need to be purchased separately.
Efficient and Powerful Heating
  • Works well with flow-restricted faucets
  • Easy installation process
  • Compact dimensions for fitting in tight spaces
  • Onboard microprocessor for precise temperature control
Inefficient
  • Temperature control may require adjustments for consistent heat
  • Door/cover not included, additional purchase required

The GIRARD Tankless RV Water Heater is a powerful and efficient solution for providing endless hot water on-demand in your RV. With its onboard microprocessor, this water heater intelligently monitors and regulates the temperature and flow rate to ensure a constant and steady water flow. Installation is a breeze, as it fits into any tank water heater opening without the need for special plumbing or modifications. The digital user control panel allows you to easily adjust temperatures and provides visual diagnostic information for troubleshooting. With its 42,000 BTUs of power and quiet operation, this water heater delivers optimal performance for your RV plumbing.

Efficient and Powerful Heating Solution
  • 42,000 BTUs
  • Quiet operation
  • Onboard microprocessor
  • Digital user control panel
  • Freeze protection
  • Easy installation
3

Fogatti Gen 2 RV Tankless Water Heater

 in stock
Amazon.com
8.2
Overall Verdict: Reliable and Convenient
The FOGATTI RV Tankless Water Heater, Gen 2, DC 12V with Black Door and Remote Controller, InstaShower 6, is an ideal choice for families living full-time in an RV. It provides plenty of hot water for back-to-back showers and has an easy installation process. The compact size also allows for additional storage space. However, some users have reported inconsistent temperatures and occasional error messages that require multiple resets during showers.
Efficient and Reliable
  • Great for full-time RV living
  • Allows for back-to-back showers without running out of hot water
  • Easy installation process
  • Compact size, providing additional storage space
  • Pro version includes a mixing tank to help with temperature fluctuations
  • Suitable for a family of 4
  • Plenty hot water with a maximum setting of 123F
Explore further:  Top 7 Safest Space Heaters to Leave Unattended
Weaknesses
  • Drawbacks:
  • Inconsistent temperatures during use
  • Occasional error messages requiring multiple resets during showers

The FOGATTI RV Tankless Water Heater, Gen 2, DC 12V with Black Door and Remote Controller is designed to provide an unprecedented experience for RVers and their families. With its high altitude suitability mode, this water heater can run smoothly even at high altitudes, making it perfect for driving the caravan to places like the high Denver plateau at 9800 feet. The staged combustion technology ensures that the water does not get too hot in summer, preventing any discomfort. With optimized summer comfort performance, this tankless water heater is ideal for RVers who value hot showers and want a reliable and efficient water heating solution. The included remote controller adds convenience and ease of use to the overall experience.

Efficient and Compact Design
  • High altitude suitability mode
  • Staged combustion technology
  • Black door and remote controller
  • InstaShower 6
  • Optimized summer comfort performance
  • Ideal for RVers' family use
4

RecPro Tankless Hot Water Heater

$439.95  in stock
Amazon.com
as of January 17, 2025 6:33 pm
8.2
The RecPro RV Tankless Hot Water Heater is a reliable and efficient option for those looking to upgrade their RV's water heating system. With its easy installation, unlimited hot water supply, and energy efficiency, it is a great investment. However, be prepared for slightly vague instructions during the installation process and a short delay in turning cold water into hot water.
Efficient and Reliable
  • Works as advertised
  • Easy to install
  • Provides unlimited hot water
  • Can quickly heat water to desired temperature
  • More energy efficient than traditional tank heaters
Drawbacks
  • Vague instructions for DIY installation
  • Takes a couple of seconds to turn cold water into hot water

The RecPro RV Tankless Hot Water Heater is a game-changer for your RV lifestyle. Say goodbye to waiting for the water tank to warm up or running out of hot water halfway through your shower. With this amazing machine, you can have a steady stream of hot water flowing to your faucets or shower without any waiting time. The forced exhaust ensures safe and efficient operation, giving you peace of mind. Plus, the included remote control makes it convenient to adjust the temperature to your desired level. Upgrade your RV experience with this reliable and efficient tankless hot water heater.

Efficient and space-saving heating solution
  • Tankless hot water heater
  • On-demand gas heater
  • Remote control included
  • Forced exhaust system
$439.95
in stock
as of January 17, 2025 6:33 pm
Amazon.com
5

RUNSAIL® RV Tankless Water Heater

 in stock
Amazon.com
7.5
Excellent Choice
The RUNSAIL® RV Tankless Water Heater is a high-powered and efficient option for any RV. With its instant hot water and stylish design, it offers convenience and comfort on the road. However, it does have a limited water flow and the winter-summer mode requires manual or automatic switching. Overall, a great choice for RV owners looking for a reliable and efficient water heater.
Benefits of RUNSAIL
  • Instant hot water with high heating power of 43,000 BTU
  • Provides enough hot water for 2 faucets at once with a max flow rate of 3.0 GPM
  • Stylish design with a black door and convenient control through a remote controller
Drawbacks

The RUNSAIL® RV Tankless Water Heater is a powerful and efficient solution for providing hot water instantly in your RV. With a high heating power of 43,000 BTU, this water heater can generate a maximum flow rate of 3.0 GPM, allowing you to use two faucets simultaneously. It is designed to be compatible with all RVs and is ideal for those with low water pressure. The black door and remote controller add convenience and style to your RV. With its high efficiency and winter-summer mode that can be switched manually or automatically, this tankless water heater is a reliable and convenient addition to your RV.

Efficient and On-Demand Hot Water
  • High heating power: 43,000 BTU for instant hot water
  • Max 3.0 GPM flow rate: Provides enough hot water for 2 faucets at once
  • Black door and remote controller: Stylish design and convenient control
  • High efficiency: Saves energy and reduces utility costs
  • Winter-Summer mode: Can be manually or automatically switched for optimal comfort
  • Compatible with all RVs: Suitable for use in any recreational vehicle
6

RVPart Pro Tankless Water Heater

$299.99  in stock
Amazon.com
as of January 17, 2025 6:33 pm
7.5
Final Verdict: Reliable and Stylish
The RVPart Pro RV Tankless Water Heater Propane is an efficient and on-demand hot water solution for your RV. With its compact design and convenient remote controller, it offers a space-saving and user-friendly experience. Although it may not be compatible with all RV models and comes with a higher initial cost, it provides endless hot water during your travels and adds a sleek touch to your vehicle with its attractive white door design.
Efficient Water Heating
  • Efficient and on-demand hot water supply for your RV
  • Compact and space-saving design with a convenient remote controller
  • Versatile and compatible with 12V power systems
  • No need to worry about running out of hot water during your travels
  • Sleek and attractive white door design
Limitations
  • Limited compatibility with certain RV models
  • Higher initial cost compared to traditional water heaters

Introducing the RVPart Pro RV Tankless Water Heater Propane – the perfect solution for endless hot water on your RV adventures. With its sleek white door measuring 15 x 15 inches, this water heater not only provides a constant and uninterrupted stream of hot water but also adds a touch of elegance to your RV's interior. Say goodbye to the frustrating waiting time for hot water with traditional tank water heaters.

Equipped with advanced features such as overheat protection, LED display, and anti-freezing protection, this RV tankless water heater ensures both safety and convenience. The 12V power supply allows for efficient and reliable performance, while the maximum temperature of 123 degrees Fahrenheit ensures a satisfying hot shower experience. With a heat output of 42000 BTUs and a maximum pressure of 116 PSI, this water heater delivers exceptional performance for your RV's hot water needs.

The RVPart Pro RV Tankless Water Heater Propane comes with a wired controller, allowing you to easily adjust the temperature and settings according to your preference. Installation is a breeze as it is built-in, saving you valuable space inside your RV. With its lightweight design of 31.3 pounds, you can easily transport and install this water heater without any hassle.

Please note that this product does not require batteries and does not come with a warranty. Designed by RVPart Pro, a trusted manufacturer in the industry, this tankless water heater is a reliable and efficient choice for your RV's hot water needs. Upgrade your RV with the RVPart Pro RV Tankless Water Heater Propane and enjoy endless hot water for a comfortable and enjoyable camping experience.

Efficient and Reliable Heating Solution
  • RV tankless water heater
  • Propane-powered
  • 15 x 15 inches white door
  • Remote controller included
  • Endless hot water for RV
  • 12V power
$299.99
in stock
as of January 17, 2025 6:33 pm
Amazon.com
7

Kingrver RV Tankless Water Heater – On Demand Hot Water

 in stock
Amazon.com
7.5
Inconsistent but convenient
The KINGRVER RV Tankless Water Heater is a great choice for RVers looking for an affordable and easy-to-install option. It has a decent flow rate and power output, and includes convenient features like a black door and remote controller. However, some users have reported inconsistent water temperature and vague installation instructions.
Efficient Hot Water Solution
Possible Weaknesses
  • Inconsistent water temperature
  • Vague installation instructions

The KINGRVER RV Tankless Water Heater is a more advanced option for RVers looking for a continuous supply of hot water. With this tankless water heater, there's no need to wait for hot water during your shower, as it provides instant hot water on demand. It's designed to be easy to install and comes with all necessary hardware. Despite some minor discrepancies, such as the color of the display, this water heater performs just as well as higher-priced options and even includes a tray for catching water purge during freeze protection. Overall, I highly recommend the KINGRVER RV Tankless Water Heater for all RVers in need of a reliable and convenient hot water solution.

Efficient and Convenient Water Heating
  • Tankless design
  • 2.2 GPM flow rate
  • 42,000 BTU power output
  • Black door and remote controller
  • Ideal for all RVers

Affordable Options for Your RV's Tankless Water Heater

  • These tankless water heaters are typically compact and offer basic functionalities suitable for smaller RVs or occasional use
  • They may have lower flow rates and limited temperature control but are an affordable choice for those on a tight budget
  • This category includes tankless water heaters that offer a balance between affordability and performance
  • They often come with better flow rates, multiple temperature settings, and energy-saving features
  • These models are suitable for most RV sizes and provide a good value for the price
  • Premium tankless water heaters in this category offer advanced features, higher flow rates, and superior durability
  • They are designed for larger RVs or for those who prioritize performance and longevity
  • These models may include features like digital displays, remote controls, and better warranties
  • It's important to consider your specific needs, RV size, and usage frequency when choosing a tankless water heater. While higher-priced options tend to offer better performance and features, it's possible to find a suitable option within your budget range

Choosing the Perfect Tankless Water Heater for Your RV

  • Size and Capacity: The first thing to consider is the size and capacity of the tankless water heater. RVs typically have limited space, so it's important to choose a compact unit that can fit comfortably in your vehicle. Additionally, you'll want to ensure that the heater has sufficient capacity to meet your hot water needs while on the road. Consider factors such as the number of people in your RV and the frequency of hot water usage to determine the appropriate size and capacity
  • Energy Efficiency: Another important factor is the energy efficiency of the tankless water heater. Since you'll be using this appliance in your RV, it's crucial to choose a model that is designed to be energy-efficient. Look for heaters with high energy efficiency ratings, such as those that are Energy Star certified. This will not only help you save on energy costs but also reduce the strain on your RV's power system
  • Installation and Maintenance: Lastly, consider the ease of installation and maintenance when choosing a tankless water heater for your RV. Look for models that come with clear instructions and are designed for hassle-free installation. It's also beneficial to choose a heater that has user-friendly controls and is easy to maintain. This will ensure that you can easily operate and take care of your water heater while on the go
Steve Donaldson Master HVAC technician
Steve DonaldsonMaster HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

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10 Comments
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  1. Thanks for putting together this list! I agree with your rankings, especially the Fogatti RV Tankless Water Heater. It’s been a game-changer for me during my RV trips.

    • You’re welcome! We’re glad you found the list helpful and that you agree with our rankings. The Fogatti RV Tankless Water Heater is definitely a popular choice among RV enthusiasts.

  2. Thank you for your comment! We appreciate your suggestion. We are indeed planning to review the latest models of these tankless water heaters in the near future. Stay tuned for updates!

  3. Could you please expand on the power and BTU ratings of the RVPart Pro Tankless Water Heater? I’m curious to know how it compares to the other models in terms of heating capacity.

    • Thank you for your question! The RVPart Pro Tankless Water Heater has a power rating of X watts and a BTU rating of X, which makes it suitable for heating water efficiently in RVs. It offers comparable heating capacity to the other models on our list.

  4. I disagree with the ranking of the Kingrver RV Tankless Water Heater. I’ve heard from several RV owners that it has reliability issues and doesn’t consistently provide hot water. It would be great if you could reconsider its placement on the list.

    • Thank you for sharing your perspective. We appreciate your feedback and understand that experiences with products can vary. We’ll take your concerns into consideration when revisiting the ranking of the Kingrver RV Tankless Water Heater.

  5. Great roundup! Have you considered reviewing the latest models of these tankless water heaters? It would be interesting to know if there have been any significant updates or improvements.

  6. I recently installed the GIRARD Tankless RV Water Heater and I must say, it’s been fantastic! It provides consistent hot water and saves a lot of space in my RV. Highly recommend it!

    • Thank you for sharing your experience! We’re glad to hear that the GIRARD Tankless RV Water Heater has been working well for you. It’s always helpful to hear real-life examples of product effectiveness.

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