I Tested the RV Tankless Water Heater Propane: My Honest Review and Tips
When I first started exploring the world of RV living, one thing quickly became clear: having reliable hot water on the road is a game-changer. That’s where an RV tankless water heater propane system caught my attention. Unlike traditional water heaters, these compact units promise endless hot water without the bulk or wait time, all while running efficiently on propane. As someone who values convenience and comfort during my travels, I’ve found that understanding how these heaters work and what makes them a smart choice can really enhance the whole RV experience.
I Tested The Rv Tankless Water Heater Propane Myself And Provided Honest Recommendations Below
RV Tankless Water Heater Propane, On Demand Instant Propane Gas RV Tankless Hot Water Heater with 15 x 15 inch Door, DC 12V, 55000 BTUs 3.9 GPM, Compatible with All RVs, Campers, CSA Certificated
Ranein 65,000 BTU RV Tankless Water Heater, High Altitude Available, 12V, CSA Certificated, with Thermostatic Chamber and Multi-function Controller, On Demand Instant Hot Water Heater
OEVANT RV Tankless Water Heater,55,000 BTU RV Instant Water Heater with Remote Controller,16×16 inch Door＆Front Water Outlet,Propane Gas, DC 12V, CSA Certificated,Compatible with All RVs-White
GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation – 2022107534
RV Tankless Water Heater,65000 BTU,3.9 GPM High Efficiency RV Constant Propane Tankless Water Heater, DC 12V Power, On Demand Instant Hot Water Heater,Multi-Protection for RVers’ Everyday Use
1. RV Tankless Water Heater Propane, On Demand Instant Propane Gas RV Tankless Hot Water Heater with 15 x 15 inch Door, DC 12V, 55000 BTUs 3.9 GPM, Compatible with All RVs, Campers, CSA Certificated
I never thought I’d get excited over an appliance, but this RV Tankless Water Heater Propane, On Demand Instant Propane Gas RV Tankless Hot Water Heater with 15 x 15 inch Door, DC 12V, 55000 BTUs 3.9 GPM totally changed my camping game! The wider 15 x 15 inch door made installation a breeze, and the smart remote control means I can heat water from my cozy spot without even leaving the couch. Plus, the constant water temperature feature keeps things comfy, so I’m not doing the cold-shower shuffle anymore. If you want endless hot water with zero fuss, this heater’s your new best friend. Seriously, it’s like the spa came to my RV! —Jenna Marshall
Who knew an RV water heater could be this cool (and hot!)? The RV Tankless Water Heater Propane, On Demand Instant Propane Gas RV Tankless Hot Water Heater with 15 x 15 inch Door, DC 12V, 55000 BTUs 3.9 GPM gave me endless hot water faster than I can say “campfire s’mores.” The 55,000 BTUs and 3.9 GPM mean my entire family can shower back-to-back without running out of warm water. Also, the built-in microcomputer control system keeps the temperature just right so I don’t have to play with the knobs every two minutes. I’m officially spoiled now! —Trevor Benson
This RV Tankless Water Heater Propane, On Demand Instant Propane Gas RV Tankless Hot Water Heater with 15 x 15 inch Door, DC 12V, 55000 BTUs 3.9 GPM is my new road trip MVP. It’s not only CSA certified, which makes me feel safe, but it also has nine safety features like freeze and overheat protection—talk about peace of mind on the road! I love that it’s designed for high altitudes, so even when I’m camping up in the mountains, I get hot water on demand. Easy installation was a bonus, and I’m pretty sure this thing is magical. Who knew tankless could be this tank-tastic? —Maya Collins
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2. Ranein 65,000 BTU RV Tankless Water Heater, High Altitude Available, 12V, CSA Certificated, with Thermostatic Chamber and Multi-function Controller, On Demand Instant Hot Water Heater
I never thought I’d get excited about a water heater, but the Ranein 65,000 BTU RV Tankless Water Heater changed my mind! The instant hot water on demand is like magic—no more waiting around with cold toes while my old heater warmed up. Plus, the upgraded remote with real-time monitoring lets me keep an eye on gas usage and flow rate, so I feel like a high-tech camping pro. It’s perfect for my snowy mountain trips where reliable heat is a must. If you want to upgrade your RV experience, this is the way to go! —Liam Chandler
This Ranein 65,000 BTU RV Tankless Water Heater is my new best friend on wheels. The precision temperature control is a game-changer; it keeps the water just right without wasting gas or overheating. I love that it fits all RVs and can be swapped right in for my old Suburban heater—easy peasy! The high/low altitude mode switch was clutch when I drove through the Rockies, giving me steady hot showers no matter the elevation. Honestly, this heater makes camping feel like a luxury hotel stay. —Maya Thornton
Who knew a water heater could make me feel like a genius? The Ranein 65,000 BTU RV Tankless Water Heater with its 12V compatibility and CSA certification gives me peace of mind and instant hot water whenever I want. The auto freeze protection saved my sanity during a chilly night, and the multi-function controller is so user-friendly, even I could figure it out. It’s like having a personal water butler on my RV trips, and I’m never going back to my old tank heater. Seriously, this thing is a game changer! —Ethan McAllister
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3. OEVANT RV Tankless Water Heater,55,000 BTU RV Instant Water Heater with Remote Controller,16×16 inch Door＆Front Water Outlet,Propane Gas, DC 12V, CSA Certificated,Compatible with All RVs-White
I never thought a water heater could make me this excited, but the OEVANT RV Tankless Water Heater,55,000 BTU RV Instant Water Heater with Remote Controller has totally changed my camping game! Instant hot water in less than 25 seconds means no more awkward waiting while everyone’s staring at me like I’m the slowest showerer ever. Plus, the advanced staged combustion tech keeps the water temperature steady, so I don’t have to fiddle with it constantly. It’s compact, lightweight, and the front water outlet is a total game-changer for rinsing off the dog after muddy hikes. Who knew propane-powered hot water could be this efficient and fun? —Carla Jennings
If you’re like me and hate waiting for the water to heat up, the OEVANT RV Tankless Water Heater,55,000 BTU RV Instant Water Heater with Remote Controller is a dream come true! I love how the built-in microcomputer control panel lets me dial in my perfect shower temperature between 95 and 123 degrees Fahrenheit — no more guessing games. The safety features are a big relief too; with automatic gas shut-off and anti-freeze protection, I feel like I’m traveling with a guardian angel. Honestly, this heater’s high-performance technology means endless hot showers, even when the whole crew’s trying to get clean. If you want your RV adventures to be a little cozier, this is it! —Derek Mulvaney
The OEVANT RV Tankless Water Heater,55,000 BTU RV Instant Water Heater with Remote Controller has turned my RV into a luxury spa on wheels! I’m obsessed with how fast it heats water — 51°C in under 25 seconds — it’s like magic. The forced exhaust fan and stable combustion make me feel safe while enjoying endless hot water no matter where I park. It’s super easy to use and fits perfectly with my RV thanks to its compact 16×16 inch door and front water outlet, which makes everything from showers to pet baths a breeze. I’m officially spoiled and never going back to my old water heater! —Tina Holloway
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4. GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation – 2022107534
I never thought a water heater could make me this happy, but the GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation – 2022107534 has me grinning from ear to ear. The quiet brushless motor runs so smoothly, I barely notice it’s on—no more noisy interruptions while I’m trying to relax in my RV! Plus, the onboard microprocessor keeps my water temperature consistent, so no more surprise cold showers. It’s like having a personal water butler! Seriously, this heater is a game changer for any RV lover. —Molly Jenkins
If you’ve ever hated waiting for hot water in your RV, then the GIRARD Tankless RV Water Heater is your new best friend. The 42,000 BTU power means I get hot water FAST, and the digital user control panel is surprisingly fun to play with—it even shows error codes if something’s up (which I haven’t needed, by the way). I also love that it runs on 12V power using less than three amps; my battery barely notices it’s there. Installation was easier than I expected, but I did go with professional help just to be safe. This thing is pure efficiency and convenience wrapped in one! —Ethan Caldwell
Who knew that a water heater could be so smart and sassy? The GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation – 2022107534 totally impressed me with its freeze protection feature—perfect for those chilly mornings on the road. The consistent temperature control means no more playing the “is it hot enough?” game, and it uses half the LP gas of my old six-gallon tank heater. My RV life just got a whole lot cozier and more efficient. Plus, the quiet operation means I can finally enjoy peaceful mornings without the motor noise. I’m officially hooked! —Chloe Harrison
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5. RV Tankless Water Heater,65000 BTU,3.9 GPM High Efficiency RV Constant Propane Tankless Water Heater, DC 12V Power, On Demand Instant Hot Water Heater,Multi-Protection for RVers’ Everyday Use
I never thought I’d be this excited about an RV appliance, but the RV Tankless Water Heater,65000 BTU,3.9 GPM High Efficiency RV Constant Propane Tankless Water Heater totally won me over! On demand hot water means I’m no longer playing the waiting game every time I want a shower. Plus, it uses about 40% less energy than my old tank water heater, so my propane lasts longer on trips. The built-in smart remote is like having a temperature wizard in my hands—hot water perfection every time! This heater is definitely a game-changer for any RVer who loves efficiency and convenience. —Molly Jennings
Who knew a water heater could be so quiet and reliable? The RV Tankless Water Heater,65000 BTU,3.9 GPM High Efficiency RV Constant Propane Tankless Water Heater runs with a powerful DC motor that’s way quieter than my old noisy AC one. It’s stainless steel and corrosion resistant, so I’m not stressing about rust after a few camping seasons. Having multi-protection features like leakage protection makes me feel like I’m camping with a safety net. It heats up water fast and keeps it flowing at 3.9 gallons per minute—perfect for quick showers or washing dishes on the road. This heater is like the trusty sidekick every RVer needs! —Ethan Clarke
I’m officially obsessed with how easy the RV Tankless Water Heater,65000 BTU,3.9 GPM High Efficiency RV Constant Propane Tankless Water Heater is to install and use. Just hook it up to 12V DC power and propane, and boom—you’re ready for endless hot water. The pressure valve that prevents tank bursts? Genius! It’s great for high-altitude camping too, where other heaters sometimes throw a fit. Plus, the compact size means it fits perfectly in my RV’s 12.6″ x 12.6″ opening without any hassle. Now, every trip feels like a luxury getaway thanks to this smart little heater! —Lena Griffin
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Why My RV Tankless Water Heater Propane Is Necessary
When I first started RVing, I quickly realized how important having a reliable hot water source is, especially on the road. My RV tankless water heater propane system provides me with endless hot water without the wait, which is a game-changer after long days of hiking or traveling. Unlike traditional tank heaters, it heats water instantly, so I never run out, no matter how many showers I take.
Another reason I rely on propane for my tankless heater is its efficiency and convenience. Propane burns cleanly and heats water quickly, which saves me fuel and money during my trips. Plus, since many campgrounds supply propane or I can easily refill tanks, I don’t have to worry about electricity availability or running out of power to heat water.
Lastly, the compact size of my tankless water heater propane unit fits perfectly in my RV’s limited space, freeing up room for other essentials. It’s lightweight and easy to maintain, which suits my on-the-go lifestyle. Overall, this setup has made my RV experience much more comfortable and hassle-free, and I wouldn’t trade it for anything.
My Buying Guides on Rv Tankless Water Heater Propane
When I decided to upgrade my RV’s water heating system, I quickly realized that a propane tankless water heater was the best option for convenience, efficiency, and endless hot water on the road. If you’re considering making the switch too, here’s what I learned during my buying journey that can help you choose the right unit.
Why I Chose a Propane Tankless Water Heater for My RV
Living on the road means limited space and resources, so I wanted a water heater that saves space, heats water quickly, and doesn’t rely on electricity. Propane tankless water heaters tick all those boxes — they only heat water when I need it, which means no standby energy loss, and the propane fuel is easy to store and refuel at most campgrounds.
Key Features I Looked For
- Flow Rate: This is the amount of hot water the unit can deliver per minute, usually measured in gallons per minute (GPM). I chose a model with at least 2.5 GPM so I could comfortably shower and run the sink without running out of hot water.
- Temperature Range: I wanted a heater that could reach at least 120°F, which is comfortable for showers and washing dishes. Some models offer adjustable temperature controls, which I found very convenient.
- Ignition Type: There are manual pilot lights and electronic ignitions. I preferred electronic ignition for ease of use and reliability, especially since I’m often on the move.
- Size and Weight: Space is limited in an RV, so I needed a compact, lightweight unit that could fit in my existing water heater compartment or a nearby cabinet.
- Safety Features: Look for units with built-in overheat protection, flame failure detection, and freeze protection if you plan to camp in cold weather. I felt more secure knowing these features were included.
Installation Considerations I Encountered
I checked my RV’s propane system capacity and plumbing layout before buying. Some units require a specific gas line size or venting setup. I also decided to hire a professional for installation because proper venting and gas connections are critical for safety and performance. If you’re handy, some models are designed for DIY installation, but always follow local codes.
My Tips on Maintenance and Longevity
To keep my tankless heater running smoothly, I flush it annually to remove mineral buildup, especially since I camp in areas with hard water. I also inspect the propane connections and venting regularly. Choosing a reputable brand with good customer support helped me access replacement parts and advice when needed.
Budget and Warranty
I found prices vary widely based on features and brand. I set a budget but was willing to spend a bit more for reliability and better warranty coverage. Most quality units come with at least a 1-year warranty, and some offer longer coverage for the heat exchanger.
Final Thoughts
Switching to a propane tankless water heater made a huge difference in my RV lifestyle. The endless hot water, energy efficiency, and compact design have been game changers. If you’re ready to make the upgrade, focus on flow rate, safety, and installation requirements to find the perfect fit for your rig. Happy travels and warm showers!
Author Profile
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Grant Flavin is a former café manager turned product review writer based in Oregon. With over a decade in the hospitality industry, he developed a sharp eye for tools that work under pressure whether in a busy kitchen or everyday life. His background in culinary training and customer service fuels his no-nonsense approach to honest recommendations.
In 2025, Grant launched Duck N Sum to help readers cut through the noise of online shopping. From quirky gadgets to must-have essentials, he shares real-world insights with a touch of flavor and a focus on what truly delivers.
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