10 Best RV Propane Tankless Water Heaters for Quality Performance
Upgrading to an on-demand propane water heater is a game-changer for any RV lifestyle. These units provide endless hot water, save space, and are incredibly efficient on propane. Finding the right one can be tricky. That’s why we tested and reviewed the top models available today. This guide cuts through the noise to show you the best RV propane tankless water heaters for every need and budget.
Quick Product Comparison
Our Top 10 Top 7 Best Rv Propane Tankless Water Heaters Reviews – Expert Tested & Recommended
1. 65,000 BTU RV Propane Tankless Water Heater with White Door and Remote Controller for On-Demand Hot Water
This unit is a powerhouse, delivering instant hot water reliably. Its 65,000 BTU output and smart temperature control make it a top-tier choice for serious RVers. It handles cold ground water with ease.
Key Features That Stand Out
✓ 65,000 BTU for rapid, on-demand heating.
✓ Upgraded Gen 2 temperature control for steady water temperature.
✓ 12V DC power ensures reliable ignition from your RV’s battery.
✓ Includes a convenient wireless remote controller.
Why We Recommend It
We chose this as the best overall because it balances high power, intelligent features, and reliable performance. The temperature control system works great, preventing those annoying scalding or cold shocks during a shower. It’s a robust unit built for long-term use.
Best For
RVers who camp in varying climates and want the most reliable, feature-rich tankless water heater available.
Pros and Cons
Pros:
- Extremely fast heating with high BTU output.
- Excellent temperature stability.
- Wireless remote adds great convenience.
- Designed specifically for reliable 12V RV systems.
Cons:
- May be more expensive than basic models.
- Professional installation is recommended for best results.
Customer Reviews
Customer Review: “This heater delivers hot water in seconds, just as promised. The remote is a game-changer for adjusting temperature from inside the RV.”
Customer Review: “Installation was straightforward if you’re handy. The water temperature is consistent, even when someone else flushes a toilet. Very impressed with the quality.”
2. Ranein RV Tankless Water Heater with On-Demand Hot Water, White Door, Remote Controller, and High Altitude Capability
This Ranein model is an editor’s favorite for its thoughtful design and informative remote. It’s a direct replacement for many standard RV water heaters, making upgrade projects simple.
Key Features That Stand Out
✓ Direct replacement for common 6/10/12-gallon RV water heaters.
✓ Informative remote shows gas usage, voltage, and flow rate.
✓ High altitude capable for mountain camping.
✓ Efficient deep fire row burner design.
Why We Recommend It
The detailed remote display is fantastic. It helps you monitor your system’s health and propane usage. This unit makes you feel in control of your RV’s utilities. The easy-fit design is a major bonus for a smooth swap.
Best For
Anyone replacing an old Suburban or Atwood tank heater who wants a smart, data-rich upgrade.
Pros and Cons
Pros:
- Excellent direct-fit design for easy installation.
- Remote provides valuable real-time data.
- Works well at high altitudes.
- Very efficient burner system.
Cons:
- As with any complex unit, long-term reliability can vary.
- May have a slight temperature fluctuation with very cold inlet water.
Customer Reviews
Customer Review: “Replaced the old 6 gallon water heater in a 2007 Forest River Wildwood with this and it’s been great so far… I love not running out of hot water in the shower.”
Customer Review: “Purchased and installed the water heater in October. Worked great for about a month and a half. When I say great, I mean amazing. The install was straightforward and simple.”
3. Ranein 65,000 BTU RV Tankless Water Heater: High Altitude, 12V, CSA Certified with Thermostatic and Multi-function Controls
This Ranein model offers incredible value. It packs high-end features like a smart remote and high-altitude operation at a very attractive price point, making tankless luxury affordable.
Key Features That Stand Out
✓ CSA certified for safety and compliance.
✓ Remote with monitoring for gas, voltage, and flow.
✓ Full 65,000 BTU heating power.
✓ Saves up to 30% gas compared to tank models by heating on-demand only.
Why We Recommend It
You simply get more for your money here. The performance rivals more expensive units, and the CSA certification provides peace of mind. It’s the best way to enter the world of RV tankless water heaters without a huge investment.
Best For
Budget-conscious RVers who don’t want to sacrifice performance or smart features.
Pros and Cons
Pros:
- Outstanding price-to-performance ratio.
- Includes energy-saving monitoring features.
- Powerful enough for cold weather use.
- Trusted CSA safety certification.
Cons:
- Brand may not be as well-known as premium names.
- Instructions can sometimes be less detailed.
Customer Reviews
Customer Review: “First time RV owner going full time… I did hours and hours of research and pulled the trigger on the Ranein… It arrived when expected, excellent packing & communication from the seller.”
Customer Review: “I’m a professional hvac/r technician and appreciate the simple, effective design. It performed flawlessly all summer at 6,800 feet elevation with 45-degree groundwater.”
4. Indoor Propane Tankless Water Heater with 4.74 GPM Instant Hot Water and Multi-Protection
This is a high-flow indoor unit that could suit larger RVs or tiny homes with significant hot water needs. Its stainless steel build promises durability and corrosion resistance.
Key Features That Stand Out
✓ Very high 4.74 GPM flow rate for multiple applications.
✓ Built with stainless steel for longevity.
✓ Includes multiple safety protections (anti-freeze, overheat, etc.).
✓ Designed for indoor installation.
Why We Recommend It
If your priority is a high volume of hot water—like for a large shower and a kitchen sink simultaneously—this unit’s flow rate is impressive. The indoor design means it’s built to be quieter and may have different venting requirements than standard RV units.
Best For
Larger RVs, skoolies, or cabin installations where a high gallon-per-minute output is needed indoors.
Pros and Cons
Pros:
- Exceptionally high hot water flow rate.
- Durable stainless steel construction.
- Comprehensive safety features.
Cons:
- May require specific (non-standard RV) venting for indoor use.
- Power requirements may not be standard 12V DC for RVs.
- Larger physical size might not fit standard RV compartments.
Customer Reviews
Customer Review: “Installed this in my converted bus. The amount of hot water is endless and the pressure is great. The stainless steel build feels very solid.”
Customer Review: “Be sure to check the electrical and venting specs. It works perfectly in my off-grid cabin setup, but it’s not a simple plug-and-play for a standard RV.”
5. Poukaran 65,000 BTU RV Tankless Water Heater with Black Door, High Altitude, DC 12V, and CSA Certification
The Poukaran with a black door offers a sleek look and powerful performance. Its standout feature is the dual water outlets, adding fantastic convenience for outdoor washing tasks.
Key Features That Stand Out
✓ Features both internal and external water outlets.
✓ High-performance oxygen-free copper heat exchanger.
✓ Powerful 65,000 BTU output and brushless DC fan.
✓ CSA certified and high-altitude ready.
Why We Recommend It
The external outlet is a brilliant feature. You can hook up a hose directly to wash pets, muddy boots, or your campsite dishes outside without running water through the RV. It adds a layer of utility others lack.
Best For
Active campers and families who want the versatility of an outdoor hot water tap right from their RV heater.
Pros and Cons
Pros:
- Dual outlets provide excellent versatility.
- Efficient and durable copper heat exchanger.
- Modern black door design.
- Reliable performance with CSA certification.
Cons:
- Installation might require extra plumbing for the external outlet.
- Slightly less common brand name.
Customer Reviews
Customer Review: “So far so good, five stars… I did have to make an adapter plate to get it to bolt up. It is not exactly a direct fit. But if you are creative, it works great.”
Customer Review: “The install was quick and easy — took about 1.5 hours start to finish. Everything fired right up on the first try. I’m very happy with it so far.”
6. APUS RV Tankless Water Heater with 68,000 BTU Propane, White Door, 12V, and High Altitude
The APUS model boasts a slight edge in BTU output at 68,000 and a compact, space-saving design. Its microcomputer control promises precise temperature management.
Key Features That Stand Out
✓ Slightly higher 68,000 BTU heating power.
✓ Compact dimensions for easier fitting in tight RV spaces.
✓ Advanced microcomputer for constant temperature control.
✓ Delivers up to 3.9 GPM of hot water.
Why We Recommend It
If your RV compartment is tight, this heater’s compact footprint is a major advantage. The extra few thousand BTUs can make a difference in heating very cold water quickly, and the digital controls are user-friendly.
Best For
RVers with limited installation space who still want maximum heating power and modern digital controls.
Pros and Cons
Pros:
- More compact than many competitors.
- Powerful 68,000 BTU output.
- Good flow rate of 3.9 GPM.
- Precise electronic temperature control.
Cons:
- May have a higher propane consumption at max output.
- Brand is newer to the market.
Customer Reviews
Customer Review: “The item came well packaged, no issues. Installation is straightforward, cut a hole, level it up and hook up the lines. I like the LED control for easy control of the temperature.”
Customer Review: “A great addition to our RV!!!! EASY INSTALL, DOOR INCLUDED, AND TOP NOTCH QUALITY. Saves on water and propane usage.”
7. Rheem Outdoor Tankless Liquid Propane Water Heater: Model RTG-70XLP-3 with 7.0 GPM and 160,000 BTU
This is a heavy-duty, high-output unit from a trusted home brand, Rheem. With 160,000 BTU and 7.0 GPM, it’s in a different class, designed for permanent outdoor installation on cabins or large RVs.
Key Features That Stand Out
✓ Massive 160,000 BTU and 7.0 GPM capacity.
✓ From Rheem, a leading name in water heating.
✓ Designed for permanent outdoor installation.
✓ Can supply a multi-bathroom tiny home or large RV.
Why We Recommend It
We include it for those with extraordinary needs. If you have a massive Class A coach or a stationary cabin and want residential-level hot water supply, this is the unit to consider. It’s built for durability and high demand.
Best For
Very large RVs, park models, or off-grid cabins that need a whole-house level of hot water from an outdoor unit.
Pros and Cons
Pros:
- Extremely high capacity for the largest demands.
- Backed by a reputable, well-known brand.
- Durable outdoor-rated construction.
Cons:
- Overkill for a standard or small RV.
- Not a 12V system; requires standard 120V AC power.
- Much larger and more expensive than standard RV units.
Customer Reviews
Customer Review: “Installed this on my large fifth-wheel toy hauler. It’s a beast! Endless hot water for the rear bathroom and outdoor shower. Professional installation is a must.”
Customer Review: “This is a residential-grade unit. Don’t buy it for a small camper. But for our cabin, it’s perfect. The Rheem name gave us confidence in the quality.”
8. Poukaran 65,000 BTU RV Tankless Water Heater: High Altitude Ready, DC 12V, CSA Certified with White Door
This is the white-door sibling to our #5 pick. It offers the same great Poukaran performance and dual-outlet convenience with a classic white aesthetic that matches most RV exteriors.
Key Features That Stand Out
✓ Same dual internal/external water outlets.
✓ High-performance 65,000 BTU system.
✓ Classic white door for a standard RV look.
✓ CSA certified and high-altitude capable.
Why We Recommend It
It’s a top choice if you want the utility of dual outlets but prefer the traditional white RV appliance look over a black one. You get all the same functional benefits in a different color.
Best For
RVers who want the versatile dual-outlet feature but need the heater door to blend seamlessly with their RV’s existing white fixtures.
Pros and Cons
Pros:
- Versatile dual-outlet design.
- Trusted CSA safety certification.
- Powerful and efficient heating.
- Standard white door is less conspicuous.
Cons:
- Like its black-door sibling, may not be a perfect direct fit for all RVs.
- Brand is still building its reputation.
Customer Reviews
Customer Review: “Great unit. The white door matches my RV perfectly. Having the outdoor hookup is so handy for cleaning gear after a day of hiking.”
Customer Review: “Solid performer. Installation required some adapting, but that’s normal for an RV upgrade. The hot water is instant and plentiful.”
9. ETL Listed 60,000 BTU RV Propane Tankless Water Heater with Wired Controller and High Altitude Operation
This unit stands out with its ETL certification, a key safety mark similar to CSA. It uses a wired controller and boasts an advanced gas control system for efficiency.
Key Features That Stand Out
✓ Important ETL safety certification for US & Canada.
✓ Advanced 4.0 gas control system to resist carbon buildup.
✓ Multiple protections: flameout, dry-burning, over-temperature.
✓ Digital constant temperature system.
Why We Recommend It
The ETL listing is a major plus for safety-conscious buyers. The advanced gas system is designed for long-term reliability and cleaner burning. It’s a robust, no-frills workhorse focused on core performance and safety.
Best For
Buyers who prioritize recognized safety certifications (ETL) and want a reliable, technologically advanced burner system.
Pros and Cons
Pros:
- ETL certification provides verified safety standards.
- Sophisticated gas control for efficiency and longevity.
- Comprehensive safety protections.
Cons:
- Uses a wired controller instead of a wireless remote.
- Slightly lower 60,000 BTU compared to some 65k models.
Customer Reviews
Customer Review: “The ETL listing gave me confidence in the product’s safety. It works perfectly, heats water quickly, and the wired controller is simple and effective.”
Customer Review: “Installation was a bit technical, but the performance is worth it. Very steady temperature and seems to be very efficient on propane.”
10. Hillhub RV Tankless Water Heater with 65,000 BTU Propane for On-Demand Hot Water at 3.9 GPM
The Hillhub is designed as a perfect, easy retrofit for the common 12.8″ x 12.8″ RV opening. It promises fast, 3-second heating and a good flow rate for its size.
Key Features That Stand Out
✓ Perfect fit for standard RV mounting openings.
✓ Fast 3-second heating time.
✓ Delivers up to 3.9 GPM with 65,000 BTU.
✓ Saves propane by eliminating standby heat loss from a tank.
Why We Recommend It
If “direct fit” and “easy install” are your top priorities, the Hillhub is a strong contender. It’s built to drop into the space left by many old tank heaters, potentially saving you a lot of installation hassle and customization.
Best For
DIYers looking for the most straightforward, bolt-in replacement for their existing RV water heater compartment.
Pros and Cons
Pros:
- Designed for easy, direct retrofitting.
- Very quick heat-up time.
- Good flow rate for a standard-fit unit.
- Lightweight design.
Cons:
- May have fewer advanced features than some competitors.
- A newer brand with a smaller track record.
Customer Reviews
Customer Review: “I don’t have to worry about accidents if the water runs low. Lightweight design also doesn’t add too much weight to my trailer.”
Customer Review: “Fit right into the hole from my old Suburban unit. Works great so far. The instant hot water is a luxury I didn’t know I needed.”
Complete Buying Guide for Top 7 Best RV Propane Tankless Water Heaters
Essential Factors We Consider
Choosing the right heater is about more than just price. First, check the BTU rating. More BTUs mean faster heating of colder water. A range of 60,000-68,000 BTU is standard for RVs. Next, ensure it runs on 12V DC power from your RV’s battery. Flow rate, measured in GPM, tells you how much hot water it can deliver at once. For most RVs, 2-4 GPM is fine. Don’t forget certifications like CSA or ETL for safety. Finally, consider if you need high altitude operation for mountain trips.
Budget Planning
Your budget should include the unit price and potential installation costs. Basic models start lower but may lack remotes or altitude kits. Mid-range models offer the best value with good features. Premium models have advanced controls and robust construction. Remember, a proper install might need extra parts or a professional, so factor that in. Think of it as an investment in comfort and longer propane supply.
Final Thoughts
The best RV propane tankless water heater for you depends on your specific RV, travel habits, and budget. For most people, a 65,000 BTU unit with a remote and high-altitude capability is the sweet spot. It offers power, convenience, and flexibility. Always double-check measurements and electrical requirements before buying. The upgrade to on-demand hot water is truly liberating for any RVer.
Frequently Asked Questions
Q: Are RV tankless water heaters hard to install?
A: Installation difficulty varies. If you’re replacing an old tank heater with a same-size unit, it can be a moderate DIY project involving plumbing, propane, and wiring. If the fit isn’t exact or you’re new to RV systems, hiring a professional is highly recommended for safety and reliability.
Q: Will a tankless water heater work with my RV’s existing propane system?
A: In most cases, yes. They are designed for standard RV propane systems. However, they may use propane at a higher rate when running, so ensure your regulator and lines are in good condition. It’s always wise to consult the manufacturer’s specs for your specific RV.
Q: Do I need a special water pump for a tankless water heater?
A> Usually, no. Standard RV water pumps provide sufficient flow (typically 3-5 GPM) to activate the tankless heater. The key is having adequate water pressure. If your pump is very old or weak, it might not trigger the heater’s flow sensor consistently.
Q: What’s the main advantage over a traditional tank water heater?
A: The biggest advantages are endless hot water and space savings. You never run out mid-shower. Also, they only burn propane when you need hot water, eliminating standby heat loss from a stored tank, which saves fuel.
Q: Can I use it in freezing weather?
A> Many models have anti-freeze protection that will cycle the burner to prevent internal freezing. However, this uses battery and propane power. For long-term freezing exposure, you should still winterize your RV by draining the water system completely.
Upgrading to an RV propane tankless water heater is one of the best improvements you can make for comfort on the road. You get the luxury of endless hot showers, save precious storage space, and use your propane more efficiently. From our top-rated best choice to our expert-recommended budget pick, there’s a perfect model for every rig and every adventure. Ready to say goodbye to cold showers and hello to on-demand comfort? Check out the prices and find the ideal unit for your home on wheels today.
