The best RV tankless propane water heater delivers an endless supply of hot water on demand, perfect for adventurers and full-time travelers who value comfort and convenience. When selecting a unit, consider crucial factors like flow rate, energy efficiency, ignition type, and mounting options, as a mismatch can lead to lukewarm showers and wasted fuel. Choosing the wrong heater might mean sacrificing performance, enduring frustrating delays in hot water, or dealing with a unit that doesn’t meet your RV’s power demands.
With numerous models available, finding the ideal fit for your specific needs is essential for maximizing your mobile living experience. We’ve compiled a list of top-rated options to help you make an informed decision and enjoy uninterrupted hot water throughout your journeys.
Deciding on the best RV tankless propane water heater involves considering powerful heating capabilities, with models like the APUS RV Tankless Water Heater and ORBEK RV Tankless Water Heater offering high BTU outputs up to 68,000 and 60,000 respectively, ensuring instant and continuous hot water for RV use. Look for units that provide consistent temperature control and GPM flow rates suitable for multiple fixtures simultaneously.
Best RV Tankless Propane Water Heater: At a Glance
| Image | Product | Buy |
|---|---|---|
Best Pick 1  | GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Best for: Quiet operation campers | Check Price |
Best Pick 2  | APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On Best for: High BTU needs | Check Price |
Best Pick 3  | ORBEK RV Tankless Water Heater, Ideal for RV Families & Best for: Family RV trips | Check Price |
Best Pick 4  | RV Tankless Water Heater, Propane-Powered, with 15″×15″Black Door and Remote Best for: Sleek exterior design | Check Price |
Best Pick 5  | Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″ Best for: Powerful heating | Check Price |
How We Picked
To determine the best rv tankless propane water heater, we prioritized build quality, real-world performance, safety, durability, and standout features. We focused on models with robust BTU outputs, like the 68,000 BTU APUS or the 65,000 BTU Ranein and dual-outlet options for maximum convenience. We ruled out units lacking clear safety certifications or advanced features like high-altitude suitability found in the FOGATTI InstaShower.
Consistent temperature delivery and efficient heating, even in colder conditions, were crucial for a superior experience.
What Most Buyers Get Wrong
Understanding RV Water Heater BTU Ratings
When choosing an RV tankless water heater, BTU (British Thermal Units) is a key indicator of heating power. Higher BTU generally means faster heating and better performance, especially with multiple taps running. For instance, the APUS RV Tankless Water Heater boasts a powerful 68,000 BTU, promising an impressive 3.9 GPM flow rate.
The ORBEK and RVPart Pro models offer a strong 60,000 BTU, while the GIRARD leads with 42,000 BTU. Consider your typical hot water needs in colder climates or with multiple users.
Altitude Adjustments for Mountain RVers
If your adventures take you to higher elevations, pay attention to high-altitude suitability. Standard propane water heaters can struggle to operate efficiently at altitudes above 5,000 feet due to thinner air. The FOGATTI InstaShower 8 Plus is specifically designed to handle this, offering a high-altitude mode that ensures flawless performance up to 9,800 feet.
This feature is crucial for maintaining consistent hot water when exploring mountainous regions, so you don’t have to sacrifice comfort.
1. GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet
Best for: Quiet operation, consistent temperature.
Forty-two thousand BTUs of heating power ensure optimal performance from this 12V continuous hot water heater, allowing for nearly noiseless operation thanks to its brushless motor drawing less than three amps.
Its onboard microprocessor actively monitors incoming water temperature, flow rate, and outgoing hot water temperature, maintaining a steady stream of hot water. The burner automatically regulates to prevent cold spots, providing a consistent temperature experience.
Pros
- 42,000 BTUs for strong heating power
- 12V operation for low amp draw
- Brushless motor ensures quiet performance
- Microprocessor maintains consistent water temperature
Cons
- 1.5 GPM flow rate may be insufficient for multiple simultaneous uses.
For RVers prioritizing a quiet camping experience while enjoying reliable hot water, this heater delivers consistent temperatures. Its advanced monitoring system ensures comfort without disruptive noise.
2. APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On
Best for: High flow rate, advanced safety features.
A robust 68,000 BTU output delivers 3.9 gallons per minute of hot water, meaning you and your family will never run out during daily tasks or extended showers in your RV.
This tankless unit features a compact 14.96 x 14.96 x 14.18-inch design for easy integration and includes essential safety protections like anti-freezing, dry combustion, and flame failure protection for peace of mind on the road.
Pros
- 68,000 BTU heat output for ample hot water
- 3.9 GPM flow rate supports multiple uses
- Compact dimensions for RV installation
- Multiple safety features included
Cons
- Maximum temperature set at 124°F, may not be hot enough for some.
Families and groups needing a high-volume, on-demand hot water supply will appreciate the 3.9 GPM flow rate. Its robust safety features add an extra layer of security for continuous use.
3. ORBEK RV Tankless Water Heater, Ideal for RV Families &
Best for: Ideal for families, energy conservation.
Delivering 60,000 BTU per minute, this ORBEK tankless water heater is designed for the demands of RV families, activating its burner only when hot water is needed to conserve energy.
The heater provides an adjustable temperature range from 95°F to 123°F and boasts a flow rate of 3.5 gallons per minute, perfect for simultaneous showers or dishes. Its oxygen-free copper heat exchanger promotes efficiency.
Pros
- 60,000 BTU heat output for family use
- 3.5 GPM flow rate for convenience
- Conserves energy by heating on demand
- Adjustable temperature from 95°F to 123°F
Cons
- Maximum pressure limited to 150 PSI, so ensure your RV’s plumbing is within this range.
For RV families who require a steady supply of hot water for multiple users throughout the day, this 60,000 BTU unit offers efficient operation. Its on-demand heating conserves propane on longer trips.
4. RV Tankless Water Heater, Propane-Powered, with 15″×15″Black Door and Remote
Best for: Includes remote, easy installation.
This propane-powered RV tankless water heater outputs 60,000 BTU per minute, providing instant on-demand hot water that activates only when you need it for showers or dishwashing.
The unit includes a 15-inch by 15-inch black door for installation and a convenient remote control for temperature adjustments within its 95°F–123°F range. It also features anti-freezing protection for year-round use.
Pros
- 60,000 BTU on-demand heating
- Includes a remote for easy control
- Anti-freezing protection included
- CSA Certified for safety standards
Cons
- Flow rate of unspecified GPM may require consultation for high-demand use.
RVers who prefer straightforward installation and the convenience of remote temperature control will find this 60,000 BTU heater suitable. Its on-demand capability ensures hot water is available precisely when needed.
5. Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″
Best for: Replacement door for Suburban, consistent temperature.
With 60,000 BTU heating power and a 2.4 GPM capacity, this Furrion RV gas water heater delivers hot water on demand and maintains a consistent temperature even when ambient temperatures drop.
Furrion’s Vortex technology employs dual sensors to automatically regulate and mix water to your desired temperature, shutting off if it exceeds safe limits. It’s designed for easy retrofitting as a replacement for Suburban water heaters.
Pros
- 60,000 BTU for strong heating
- 2.4 GPM flow rate for single or dual use
- Maintains steady temperatures with Vortex technology
- Overheat protection for safety
Cons
- 2.4 GPM flow rate may be low for simultaneous use of multiple fixtures.
This Furrion model is an excellent choice for RV owners looking to replace their older Suburban water heater with a unit providing consistent on-demand hot water. Its temperature regulation ensures comfort.
6. Gen II Ranein On-Demand Propane RV Tankless Water Heater, 15×15
Best for: Direct replacement, high efficiency.
The Gen II Ranein on-demand propane RV tankless water heater features an advanced deep fire row design for maximum heating efficiency, delivering consistent hot water from 95°F to 124°F.
This unit is designed as a simple direct replacement for most RV water heaters, including Suburban and Atwood 6/10/12-gallon models, and offers a flow rate of 2.9 gallons per minute. It includes anti-freezing and overheat protection.
Pros
- 42,000 BTU for efficient heating
- 2.9 GPM flow rate for good supply
- Direct replacement for common models
- Anti-freezing and overheat protection
Cons
- 42,000 BTU may be less powerful for very cold climates or high demand.
For RV owners seeking a straightforward replacement for their existing tank water heater, this Gen II Ranein unit offers efficient on-demand heating. Its broad compatibility simplifies upgrades.
7. FOGATTI InstaShower 8 Plus RV Tankless Water Heater, 3 Door
Best for: High altitude ready, low pressure start.
The FOGATTI InstaShower 8 Plus operates at altitudes up to 9,800 feet, employing a high-altitude suitability mode for flawless performance, while its staged combustion conserves propane by controlling flame in summer.
This unit provides 55,000 BTU of heat and a flow rate of 2.9 gallons per minute, with an efficiency rating of 84%. It features low water pressure start-up, making it suitable for various water systems and preventing overheating.
Pros
- Operates reliably up to 9,800 ft altitude
- 55,000 BTU for effective heating
- 2.9 GPM flow rate for consistent supply
- Low water pressure start-up capability
Cons
- Maximum temperature limited to 123°F.
This FOGATTI heater is ideal for RVers who travel to higher elevations or have lower water pressure systems. Its 55,000 BTU output and efficient operation ensure reliable hot water.
8. RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot
Best for: Dual-outlet, high temp range.
This tankless RV water heater delivers up to 65,000 BTU and 3.9 GPM, providing instant hot water in as little as 3 seconds for an endless supply to dual outlets.
The unit ignites only when a tap is turned on, saving energy, and offers a maximum temperature of 140°F, perfect for busy RV camping or off-grid living. It features integrated error code indicators for easy troubleshooting.
Pros
- 65,000 BTU for powerful heating
- 3.9 GPM flow rate for multiple uses
- Maximum temperature of 140°F
- Integrated error code indicator
Cons
- DC power source only, requires 12V connection, not propane.
For RV owners needing robust hot water capacity for both showers and sinks simultaneously, this 65,000 BTU unit is an excellent fit. Its high maximum temperature and flow rate support demanding use.
9. ORBEK RV Tankless Water Heater, Propane Gas On-Demand Instant Hot
Best for: Designed for travel, high altitude.
Powered by a 60,000 BTU propane system, this ORBEK tankless water heater provides a stable hot water flow of up to 3.5 to 3.9 GPM, suitable for daily RV use and travel.
This unit is specifically designed for RV travel and high altitude use, featuring anti-freezing and dry combustion protection. It offers a maximum temperature of 123°F and a 24-month warranty for peace of mind.
Pros
- 60,000 BTU for strong performance
- 3.5-3.9 GPM flow rate
- Built for high altitude and travel
- Includes anti-freezing and dry combustion protection
Cons
- Maximum pressure limited to 150 PSI.
Travelers who frequently encounter varying altitudes or require a reliable hot water supply for multiple daily tasks will benefit from this 60,000 BTU ORBEK heater. Its robust design supports demanding RV lifestyles.
10. Gen II Ranein RV Tankless Water Heater 65,000 BTU, On-Demand
Best for: More power, more flow, energy efficient.
A 65,000 BTU high-output burner heats water faster than lower-BTU RV heaters, delivering stable temperatures from 95°F to 124°F, even in cold weather.
With up to 3.9 GPM, this unit provides stronger flow and pressure than low-flow models, supporting simultaneous faucet use without drop-off. Its energy-efficient design and staged combustion minimize fuel consumption.
Pros
- 65,000 BTU for rapid heating
- 3.9 GPM flow rate for strong supply
- Stable temperatures from 95°F–124°F
- Energy efficient operation
Cons
- 46 watts power consumption may be a factor on limited 12V systems.
This Gen II Ranein heater is perfect for RVers demanding consistent, high-pressure hot water with minimal temperature fluctuations. Its enhanced flow rate and BTU output ensure comfort during simultaneous use.
BTU Is Not The Sole Deciding Factor
The most crucial differentiator for a best rv tankless propane water heater is not simply its BTU output, but how that output is managed to deliver consistent, usable hot water under varying environmental and intake conditions. While units like the APUS RV Tankless Water Heater and the ORBEK RV Tankless Water Heater boast impressive 68,000 BTU and 60,000 BTU figures respectively, the real success lies in their ability to maintain a target temperature throughout the flow. This is where specifications like GPM (gallons per minute) and advanced burner designs become paramount.
For instance, a unit advertised with 60,000 BTU, like the ORBEK RV Tankless Water Heater, Ideal for RV Families &, or the RVPart Pro offering, might struggle if its GPM is lower or its thermal regulation is less sophisticated than another similarly rated unit.
Consider the Furrion® RV Tankless Gas 60,000 BTU Water Heater. Its claim of delivering hot water on demand at a consistent temperature even when ambient temperature drops to 32ºF is a direct indicator of its superior control system, not just its raw heating power. The GIRARD Tankless RV Water Heater, at 42,000 BTUs, still offers powerful performance, but its 12V power draw at less than three amps is a separate consideration entirely, highlighting that electrical demands also play a role in the overall system integration of a tankless water heater, even if propane is the primary fuel.
The distinction isn’t about which single number is highest, but which unit engineers these numbers into a seamless user experience.
Furthermore, features like high-altitude suitability, as demonstrated by the FOGATTI InstaShower 8 Plus RV Tankless Water Heater, point to software and sensor adjustments that directly impact performance. A higher BTU rating might still perform poorly at altitude if not specifically designed with altitude compensation. Similarly, units like the Gen II Ranein On-Demand Propane RV Tankless Water Heater, with its advanced deep fire row design for maximum heating efficiency, are prioritizing the method of heat transfer and combustion to ensure consistent output, a more complex engineering challenge than simply cranking up the BTU score.
Ultimately, buyers should look beyond the headline BTU number. The RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot, for example, offers 65,000 BTU and 3.9 GPM, which sounds excellent, but its real-world performance is dictated by how effectively it can maintain that flow rate at a desired temperature, especially in colder climes or when multiple fixtures are in use. The best choice hinges on a unit’s ability to manage its power efficiently and consistently, rather than just its raw power potential.
For those prioritizing robust performance and consistent temperature across a range of conditions, the Furrion® RV Tankless Gas 60,000 BTU Water Heater is a strong contender due to its stated capability in colder ambient temperatures.
What to Look for in a Best RV Tankless Propane Water Heater
Flow rate and gpm
When selecting an RV tankless propane water heater, prioritize a flow rate of at least 2.6 GPM for basic needs, understanding that 3.5 GPM or higher is essential for simultaneous use like running a shower and sink. Higher GPM models perform better at altitude, preventing reduced hot water delivery. For cold climates, ensure the unit has an effective ignition system that won’t falter in lower temperatures and that it’s designed for easy winterization, preventing internal damage.
Choose a 3.5 GPM or higher unit for the most flexible and robust hot water performance for families and frequent travelers.
Ignition type and power source
Focus on models with reliable electronic ignition, which eliminates the need for pilot lights and improves fuel efficiency. These systems typically require a minimal battery draw, which is easily managed by your RV’s existing electrical system. Ensure the propane gas line connection size on the heater matches your RV’s plumbing to prevent leaks and ensure optimal fuel delivery.
Look for units with a high fuel efficiency rating, typically expressed as an energy factor, to maximize your propane supply on the road. Electronic ignition with a direct propane connection is the most convenient and efficient choice.
Installation and mounting
Opt for a direct-vent system for installation, as it draws combustion air from outside and exhausts directly through the RV wall, enhancing safety and preventing moisture buildup inside. Confirm the required clearance around the unit, noting that direct-vent models generally need less space than through-the-wall alternatives. Verify the unit’s weight and dimensions to ensure it fits comfortably in your intended cabinet space.
Secure mounting brackets should be robust and included with the unit for a stable installation. A direct-vent system with ample clearance and secure mounting is the safest and most practical installation option.
Which Should You Choose?
- If you need the most powerful, continuous hot water for a busy family, choose a model with at least 60,000 to 68,000 BTUs.
- If you frequently camp at higher elevations, look for a model with a high-altitude adjustment feature.
- If you’re concerned about consistent temperatures in cold weather, select a unit designed for cold-weather performance and stable temperature delivery.
- If you prioritize quiet operation and lower power draw, consider a 12V model with a brushless motor.
Quick Best Rv Tankless Propane Water Heater Buying Checklist
- Check Flow Rate: Ensure the unit’s Gallons Per Minute (GPM) meets your demand for multiple faucets.
- Verify Ignition Type: Opt for propane with electronic ignition for convenience and battery backup.
- Confirm Ventilation: Choose between direct vent or through-the-wall systems based on your RV’s configuration.
- Consider Size and Weight: Measure available space and ensure the unit fits comfortably.
- Review Power Requirements: Note any battery or electrical connections needed for operation.
- Factor in Winterization: Look for models designed to prevent freezing in colder climates.
Frequently Asked Questions
How Much Propane Does An Rv Tankless Water Heater Use?
RV tankless propane water heaters generally consume propane only when hot water is actively being used. This makes them more efficient than traditional tank heaters, as they don’t continuously use fuel to keep a large volume of water warm. Many models are rated for a certain BTU input, indicating their heat output capacity.
Can I Use A Tankless Propane Water Heater In Freezing Temperatures?
Many modern RV tankless propane water heaters are designed with freeze protection features. These often include a drain plug and internal mechanisms that can help prevent damage from freezing. However, it’s crucial to check the specific model’s specifications regarding cold-weather operation and proper winterization procedures.
What Is The Difference Between A Tankless And An On-Demand Rv Water Heater?
The terms ‘tankless’ and ‘on-demand’ are often used interchangeably when referring to RV water heaters. Both describe systems that heat water only when you turn on a hot water tap, eliminating the need for a storage tank. This provides an endless supply of hot water until the unit’s flow rate limit is reached.
How Long Does An Rv Tankless Propane Water Heater Last?
With proper installation and regular maintenance, an RV tankless propane water heater can last for many years, often exceeding the lifespan of traditional tank water heaters. Key to longevity are ensuring correct water flow, periodic flushing to remove mineral buildup, and protecting it from freezing.
Do Rv Tankless Water Heaters Require A Specific Type Of Propane Tank?
No, RV tankless propane water heaters typically connect to standard RV propane tanks, usually those ranging from 20 to 40 pounds. The connection is made via a propane hose and regulator, ensuring consistent pressure delivery to the unit. Always use the appropriate regulator recommended by the heater manufacturer.
Final Words
Upgrading to the best RV tankless propane water heater transforms your travel experience with reliable, on-demand hot water. Enjoy endless showers and quick dishwashing without the limitations of a small tank. Invest in this efficient solution to enhance your RV’s comfort and convenience on every adventure.