The best RV tankless propane water heater provides an on-demand, continuous supply of hot water ideal for campers and road-trippers seeking comfort away from home. Choosing the right unit ensures you avoid the frustration of running out of hot water mid-shower or during dishwashing. Factors like flow rate, temperature control, and ease of installation vary significantly between models, and a poor selection can lead to inefficient performance and wasted fuel.
With numerous options available, finding the perfect fit for your specific needs can be challenging. This curated list of top-rated RV tankless propane water heaters highlights the premier choices for reliability and performance, ensuring your adventures are always warm and comfortable.
For those seeking the best RV tankless propane water heater, models offering the highest BTU output and consistent flow rates are paramount. Products like the APUS RV Tankless Water Heater with 68,000 BTU and 3.9 GPM, ORBEK RV Tankless Water Heater at 60,000 BTU, and the Furrion RV Tankless Gas 60,000 BTU Water Heater stand out, providing on-demand hot water crucial for RV living.
Best RV Tankless Propane Water Heaters at a Glance
| Image | Product | Buy |
|---|---|---|
Best Pick 1  | GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Best for: Quiet travel heater | Check Price |
Best Pick 2  | APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On Best for: High-output heating | Check Price |
Best Pick 3  | ORBEK RV Tankless Water Heater, Ideal for RV Families & Best for: Family campers | Check Price |
Best Pick 4  | RV Tankless Water Heater, Propane-Powered, with 15″×15″Black Door and Remote Best for: Customizable access | Check Price |
Best Pick 5  | Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″ Best for: Performance heating | Check Price |
How We Picked
To determine the best rv tankless propane water heater, we prioritized critical buyer considerations: robust build quality, consistent real-world performance, safety certifications, long-term durability, and unique standout features. We focused on BTU output, GPM flow rates, and power efficiency. Models offering high heating power like the 68,000 BTU APUS and those with advanced features such as high-altitude suitability (FOGATTI) were highly rated.
We analyzed details like brushless motors, cold-weather performance, and quiet operation. Products with less advanced heating mechanisms or inconsistent flow were ruled out, ensuring our top picks excel in providing reliable, on-demand hot water.
What Most Buyers Get Wrong
BTUs: More Than Just a Number
When looking at RV tankless water heaters, BTU (British Thermal Units) is a key spec. Higher BTUs mean faster, hotter water. For example, the APUS RV Tankless Water Heater at 68,000 BTUs promises a robust 3.9 GPM, while the ORBEK and RVPart Pro models offer 60,000 BTUs with activated burners only when needed, ensuring efficiency.
Consider your typical usage – a larger family or more simultaneous hot water demands will benefit from higher BTU ratings like those from APUS or FOGATTI.
Flow Rate Matters for Endless Hot Water
The Gallons Per Minute (GPM) rating on your RV tankless water heater dictates how much hot water you can get at once. A higher GPM ensures you won’t run out mid-shower. The APUS and the RV Tankless Water Heater (dual-outlet model) both boast an impressive 3.9 GPM.
For families where multiple people might use hot water concurrently, aim for models like these, or the ORBEK’s 3.5-3.9 GPM, to avoid cold surprises. This is crucial for enjoying on-demand hot water.
1. GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet
Best for: Quiet operation for peaceful travel.
A 42,000 BTU heat output from this Girard RV tankless water heater ensures consistent hot water with its 12V brushless motor, operating at under three amps for nearly noiseless performance while you travel.
This unit features a 1.5 Gallons Per Minute flow rate and can reach a maximum temperature of 124 Degrees Fahrenheit, monitored by an onboard microprocessor to regulate the burner for a steady water temperature and prevent cold spots. Its half the fuel consumption compared to traditional models makes it efficient.
Pros
- 42,000 BTU heat output for robust performance
- 12V brushless motor for quiet operation
- Microprocessor for consistent temperature control
- Lower fuel consumption than tank heaters
Cons
- Lower flow rate (1.5 GPM) may not support multiple simultaneous uses
This Girard model is ideal for RV owners prioritizing quiet operation during their travels. Its consistent temperature regulation offers a comfortable hot water experience for individuals or couples.
2. APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On
Best for: High BTU for demanding family use.
An impressive 68,000 BTU heat output from the APUS RV tankless water heater delivers 3.9 GPM of hot water, enough for simultaneous use during busy travel days.
This model includes advanced features like Anti-Freezing Protection, Dry Combustion Protection, and Flame Failure Protection, operating at 12 Volts DC and capable of reaching a maximum temperature of 124 Degrees Fahrenheit. Its compact dimensions of 14.96 x 14.96 x 14.18 inches allow for quick installation.
Pros
- 68,000 BTU for high heating power
- 3.9 GPM flow rate supports multiple fixtures
- Multiple safety protections included
- Compact size for easy installation
Cons
- Maximum temperature limited to 124°F
The APUS tankless water heater is perfect for large families or RVs with high hot water demands. Its rapid GPM and comprehensive safety features provide peace of mind and comfort.
3. ORBEK RV Tankless Water Heater, Ideal for RV Families &
Best for: Family-focused with 3.5 GPM flow.
With a 60,000 BTU heat output, the ORBEK RV tankless water heater provides a 3.5 Gallons Per Minute flow rate, directly meeting the hot water needs of RV families.
Featuring adjustable temperatures from 95°F–123°F and anti-freezing protection, this CSA Certified unit operates on 12 Volts DC and handles up to 150 Pound per Square Inch of pressure. Its oxygen-free copper heat exchanger enhances performance and longevity.
Pros
- 60,000 BTU heating power
- 3.5 GPM flow rate for ample hot water
- Adjustable temperature range
- CSA Certified for safety assurance
Cons
- Maximum pressure is 150 PSI, which might be limiting for some plumbing systems.
This ORBEK model is a strong choice for RV families needing reliable hot water for multiple family members. Its balance of power, flow rate, and adjustable temperature settings cater to diverse household needs.
4. RV Tankless Water Heater, Propane-Powered, with 15″×15″Black Door and Remote
Best for: Sleek black design with remote control.
This RV propane tankless water heater delivers 60,000 BTU of heat output, providing instant hot water on demand for continuous use during RV trips.
Equipped with an oxygen-free copper heat exchanger, it ensures efficient and durable performance, featuring anti-freezing protection and adjustable temperatures between 95°F–123°F. The included 15″x15″ black door and remote control add convenience and a modern aesthetic.
Pros
- 60,000 BTU for instant hot water
- Oxygen-free copper heat exchanger
- Anti-freezing protection included
- Comes with a 15″x15″ black door and remote
Cons
- Specific flow rate is not detailed, making comparison difficult.
Ideal for RV owners who want both efficient heating and contemporary aesthetics, this water heater fits the bill. The added remote control enhances user convenience.
5. Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″
Best for: Retrofit replacement with Vortex technology.
The Furrion RV Tankless Gas Water Heater offers 60,000 BTU heating power with a 2.4 GPM capacity, delivering consistent hot water even when outdoor temperatures drop to 32ºF.
Featuring Furrion’s Vortex technology for consistent water mixing and dual-sensors for overheat protection, this unit operates on 12 Volts and is specifically designed as a replacement door for Suburban water heaters. Its 60 KW mention in wattage likely refers to its heating power equivalent.
Pros
- 60,000 BTU high heating power
- 2.4 GPM capacity for good flow
- Vortex technology for steady temperatures
- Designed as a Suburban replacement door
Cons
- Lower GPM (2.4) may be insufficient for simultaneous high-demand uses.
This Furrion is a practical choice for RV owners looking to upgrade from a Suburban tank heater with a modern, efficient unit. Its consistent temperature delivery ensures a comfortable shower experience.
6. Gen II Ranein On-Demand Propane RV Tankless Water Heater, 15×15
Best for: Efficient design for moderate climates.
An advanced deep fire row design in the Gen II Ranein On-Demand RV Tankless Water Heater provides maximum heating efficiency, delivering consistent hot water in temperatures adjusted from 95°F to 124°F.
With a 2.9 Gallons Per Minute flow rate and staged combustion to avoid overheating, this unit is ideal for moderate climates and environments, featuring anti-freezing and overheat protection. It’s designed as a direct replacement for most standard RV water heaters, including Suburban and Atwood models.
Pros
- High heating efficiency with deep fire row
- 2.9 GPM flow rate for steady output
- Adjustable temperature range (95°F-124°F)
- Direct replacement for common RV models
Cons
- 42,000 BTU may be lower than desired for very cold climates or high-demand use.
The Gen II Ranein is suitable for RVers in moderate climates who need an efficient and easy-to-install tankless water heater. Its design focus on consistent temperatures and efficiency makes it a solid option.
7. FOGATTI InstaShower 8 Plus RV Tankless Water Heater, 3 Door
Best for: High altitude performance for mountain travel.
The FOGATTI InstaShower 8 Plus RV Tankless Water Heater is high-altitude ready, operating smoothly up to 9,800 ft with its unique high altitude suitability mode.
This unit boasts a 55,000 BTU heat output and a 2.9 Gallons Per Minute flow rate, featuring staged combustion technology to prevent overheating and conserve propane. It also includes anti-freezing, dry combustion, and low water pressure start-up protections, operating at 12 Volts DC.
Pros
- Operates at high altitudes up to 9,800 ft
- 55,000 BTU for robust heating
- 2.9 GPM flow rate
- Conserves propane with staged combustion
Cons
- Lower BTU (55,000) compared to some competitors may impact performance in extreme cold.
This FOGATTI heater is exceptionally well-suited for RV adventurers who frequently travel to high-altitude locations. Its specialized mode and propane-saving features offer reliable comfort anywhere.
8. RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot
Best for: Dual outlet and temperature lock feature.
Delivering up to 65,000 BTU and 3.9 GPM, this RV tankless water heater provides instant hot water in 3 seconds with a dual-outlet design for flexible use.
Operating on DC power with anti-freezing and dry combustion protection, it reaches a maximum temperature of 140°F, featuring a temperature lock to maintain set heat levels. The on-demand ignition conserves energy by only heating when a faucet is turned on.
Pros
- 65,000 BTU for rapid heating
- 3.9 GPM flow rate for strong supply
- Dual-outlet capability
- Temperature lock feature for consistent output
Cons
- Power source is DC only, requiring a 12V hookup.
This tankless water heater is perfect for RVers who need a high-flow system that can support multiple points of use simultaneously. The dual-outlet and temperature lock offer enhanced convenience and control.
9. ORBEK RV Tankless Water Heater, Propane Gas On-Demand Instant Hot
Best for: Travel ready with 24-month warranty.
The ORBEK RV Tankless Water Heater uses a powerful 60,000 BTU propane heating system to deliver a stable hot water flow up to 3.5 GPM, ideal for daily RV use.
This model is designed for RV travel and high altitude use, with features including anti-freezing protection, dry combustion protection, and a leak detection system. It operates on 12 Volts DC and is backed by a 24-month warranty and 24/7 customer support.
Pros
- 60,000 BTU powerful heating
- 3.5 GPM stable flow rate
- Designed for travel and high altitudes
- Long 24-month warranty
Cons
- Maximum temperature is capped at 123°F, which might be slightly lower than preferred for some users.
This ORBEK model suits travelers who value durability and extended support, particularly those venturing to higher elevations. Its reliable performance and included protections make it a trustworthy choice.
10. Gen II Ranein RV Tankless Water Heater 65,000 BTU, On-Demand
Best for: High flow and power for continuous use.
A 65,000 BTU high-output burner in the Gen II Ranein RV Tankless Water Heater heats water faster, delivering stable temperatures and up to 3.9 GPM for stronger flow than low-flow models.
This unit ensures longer, uninterrupted showers with fewer temperature swings, supporting simultaneous faucet use without drop-off. It offers precision control from 95°F–124°F and features staged combustion for efficiency, with integrated anti-freezing and overheat protections. The LED display provides easy monitoring.
Pros
- 65,000 BTU for rapid heating
- 3.9 GPM flow rate for high demand
- Supports simultaneous faucet use
- Precise temperature control (95°F-124°F)
Cons
- Requires a 12V DC power source for operation.
The Gen II Ranein is an excellent selection for RV owners who demand consistent, high-volume hot water for multiple users or activities. Its power and flow rate ensure comfort even during cold weather or busy travel periods.
BTU Output Alone Misleads RVers
The single most important factor to consider when purchasing a best rv tankless propane water heater isn’t raw BTU output, but rather understanding how that power translates to real-world water flow and temperature stability under typical RV usage scenarios.
While it’s tempting to equate higher BTUs with better performance, an RV owner often gets more performance from a unit closer to 60,000 BTU, such as the ORBEK RV Tankless Water Heater or the Furrion® RV Tankless Gas 60,000 BTU Water Heater, than from units claiming much higher figures but delivering less usable flow. For instance, the APUS RV Tankless Water Heater boasting 68,000 BTU states a 3.9 GPM flow rate, which is competitive. However, the ORBEK RV Tankless Water Heater, listed at 60,000 BTU, also claims a similar 3.5–3.9 GPM, suggesting that the conversion of BTUs to usable hot water flow is far from linear.
The critical oversight is often ignoring the stated gallons per minute (GPM) and the cumulative effect of simultaneous water draws. A unit rated at 42,000 BTUs, like the GIRARD Tankless RV Water Heater, while quieter and running on 12V power, will inherently struggle to keep up with more than one fixture at a time, especially if ambient temperatures are low. Conversely, units like the Gen II Ranein RV Tankless Water Heater 65,000 BTU or the RV Tankless Water Heater, 65000BTU Dual-Outlet Lockable Instant Camper Hot, which offer between 60,000-65,000 BTU and up to 3.9 GPM, are generally better equipped to handle the demands of a family showering while a faucet is also running intermittently.
The key is not just the peak heating capacity, but the sustained delivery rate that prevents temperature drops during concurrent use.
Furthermore, specific design features can overcome seemingly lower BTU ratings. The FOGATTI InstaShower 8 Plus RV Tankless Water Heater, for example, touts a high-altitude suitability mode, indicating a sophisticated burner control that optimizes combustion for varied atmospheric conditions, a factor independent of raw BTU output but crucial for consistent performance across diverse travel locations. This suggests that even if other units offer slightly more raw heating power on paper, the efficiency and adaptability of the heating mechanism itself can be the deciding factor for a reliable hot water supply.
For most RVers prioritizing consistent hot water for simultaneous use without sacrificing significant tank space, the ORBEK RV Tankless Water Heater, with its 60,000 BTU rating and strong GPM delivery, represents a pragmatic and effective choice.
What to Look For in a Best RV Tankless Propane Water Heater
Heating capacity and flow rate
For an RV tankless propane water heater, prioritize a flow rate between 1.3 and 2.5 Gallons Per Minute (GPM) for simultaneous use, with higher GPM accommodating multiple fixtures. Look for electronic ignition systems; they are significantly more reliable and convenient than manual spark types. Ensure the unit can achieve a 50-60°F temperature rise from your incoming water temperature, a standard for comfortable showering.
Choose a model with a higher GPM if your RV has multiple bathrooms or you run several hot water applications at once, ensuring you get a consistent supply.
Energy efficiency and fuel consumption
When assessing energy efficiency, pay close attention to the BTU output, which directly translates to propane consumption. Units in the 40,000-65,000 BTU range offer a good balance of heating power and reasonable propane use. Seek out models with built-in eco-modes that intelligently reduce burner output when less hot water is needed.
Crucially, opt for on-demand pilot lights, which only activate when hot water is turned on, saving significant propane compared to continuous pilot systems. This on-demand approach ensures you’re not wasting fuel heating water you aren’t using.
Installation and size considerations
Consider the physical dimensions and weight for seamless integration into your RV. Compact units measuring around 15x15x12 inches and weighing under 30 pounds are ideal for most RVs. Verify that the included venting kit is suitable for your RV’s exterior wall type and thickness; through-the-wall kits are most common.
Standard propane connections are usually 1/2-inch NPT, and water connections are typically 1/2-inch or 3/4-inch NPT. Always select a unit that physically fits in your intended space and comes with the necessary venting hardware for straightforward installation.
Durability and user features
Durability is paramount. Models featuring stainless steel or corrosion-resistant aluminum construction will withstand the rigors of RV travel. A digital display with precise temperature control offers convenience and accuracy, allowing you to set your desired hot water temperature easily.
Essential winterization capabilities, such as automatic drain functions or easy manual draining points, prevent freeze damage. Opt for units with robust build materials and user-friendly controls for long-term reliability and comfort on the road.
Which Should You Choose?
- If you have a family or multiple people RVing frequently, choose a model with at least 60,000 BTU to ensure everyone gets hot water.
- If you plan on RVing in colder climates or at higher altitudes, look for models specifically designed for cold weather performance or high-altitude operation.
- If you’re looking for quieter operation and a 12V power option, consider a unit with a brushless motor and low amp draw.
- If you need to supply hot water for multiple fixtures simultaneously, opt for a heater with a higher GPM (gallons per minute) rating, such as 3.9 GPM.
Quick Best Rv Tankless Propane Water Heater Buying Checklist
- Assembly Complete: Ensure all components are present and undamaged before installation.
- Clear Installation Space: Verify adequate ventilation and mounting area away from flammable materials.
- Water Inlet/Outlet Connections: Check that fittings match your RV’s plumbing for a secure fit.
- Propane Line Connection: Use appropriate regulators and hoses for safe and leak-free operation.
- Power Supply Verified: Confirm battery or 12V DC hookup is correctly wired.
- Initial Test Run: Operate the unit briefly to check for leaks and consistent heating.
Frequently Asked Questions
What Is The Primary Advantage Of An Rv Tankless Propane Water Heater Over A Traditional Rv Water Heater?
An RV tankless propane water heater provides continuous hot water on demand without ever running out. Unlike traditional tank models that heat and store water, tankless units only heat water as you use it, offering convenience and preventing cold showers.
How Does The Propane Consumption Of A Tankless Rv Water Heater Compare To A Tank Model?
While tankless models use propane only when hot water is needed, they can consume more propane per minute during use due to higher heating power. However, they are generally more fuel-efficient overall as they don’t continuously heat stored water.
What Installation Considerations Are Crucial For An Rv Tankless Propane Water Heater?
Proper ventilation is paramount for safe operation, requiring an exhaust vent to the outside to prevent carbon monoxide buildup. Ensuring secure mounting and correct water and propane line connections are also essential for functionality and safety.
Can An Rv Tankless Propane Water Heater Provide Enough Hot Water For Multiple Simultaneous Uses?
The ability to supply multiple simultaneous uses depends on the unit’s GPM (gallons per minute) flow rate and the temperature rise required. Higher GPM models can generally support more than one outlet, like a shower and sink, at the same time.
What Maintenance Is Typically Required For A Best Rv Tankless Propane Water Heater?
Regular maintenance involves flushing the unit to remove mineral buildup and inspecting the air intake and exhaust vents for obstructions. Checking propane connections for leaks and ensuring the igniter is clean also contribute to optimal performance.
Final Words
Upgrading to the best RV tankless propane water heater brings unparalleled convenience with endless hot water for all your adventures. This essential upgrade ensures comfort, efficiency, and reliability for your travels. Embrace the freedom of consistent hot water—your next trip just got much more enjoyable.