Gen II Ranein RV Tankless Water Heater 65,000 BTU, On-Demand Propane Hot Water, Thermostatic Mixing Chamber, 12V Powered, High Altitude Ready, CSA Approved, Ideal for Simultaneous Use and Family Use
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Availability:
13 left in stock
Arrives
Saturday, Mar 14
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Style: ExploreFlow Pro
Features
- Instant Continuous Hot Water More Power, More Flow: Powered by a 65,000 BTU high-output burner, this unit heats water faster than lower-BTU RV heaters, delivering stable temperatures even in cold weather. With up to 3.9 GPM, it provides stronger flow and pressure than low-flow models, supporting simultaneous faucet use without drop-off. Higher BTU and GPM ensure longer, uninterrupted showers with fewer temperature swings. Precision control from 95F124F and staged combustion improve efficiency, prevent summer overheating, and extend propane runtimeideal for RV families needing reliable hot water.
- Easy Replacement: Fits standard RV cutouts and replaces most Suburban & Atwood 6/10/12-gallon tank water heaters with a 12.8" 12.8" opening. Exterior door not included; optional door kits (15" 15", 15" 18", or 18" 18") sold separately.
- Thermostatic Mixing Chamber: Thermostatic Chamber Technology dynamically balances heat output to deliver stable water temperatures, reducing fluctuations caused by changing water demand and enabling reliable, simultaneous hot water use for the whole family.
- Enhanced for Your Convenience: The upgraded multi-function remote provides real-time visibility into gas consumption, voltage, water flow (GPM), and anti-freeze activation, and is optimized for reliable performance at altitudes up to 9,800 ft.
- Safe & Reliable: Designed with a top-mounted exhaust fan to ensure stable combustion, plus flame failure protection with automatic gas shut-off. The integrated anti-freeze function activates below 42.8F to protect internal components. CSA certified, with a built-in pressure relief valve included.
- Ideal For: Full-time RVers who need reliable hot water, campers who enjoy extended showers, Cold climate travelers who need freeze protection and families or multiple users who need simultaneous hot water use.
- RV-READY DESIGN & 12V POWERED: 12V DC powered system integrates with RV electrical setups and supports common RV plumbing connections designed specifically for rv living and travel trailers.
- Oxygen-Free Copper for Durability & Efficiency: Built with an oxygen-free copper heat exchanger, this RV hot water heater delivers fast, efficient heat transfer and long-term durability. The corrosion-resistant copper structure ensures reliable performance over time.
Brand: Ranein
Capacity: 10 Gallons
Power Source: Liquid Propane
Product Dimensions: 15"W x 15"H
Special Feature: Anti-Freezing Protection, Dry Combustion Protection, LED Display, Overheat Protection, Pressure Release Valve See more
Brand: Ranein
Product Dimensions: 15"W x 15"H
Special Feature: Anti-Freezing Protection, Dry Combustion Protection, LED Display, Overheat Protection, Pressure Release Valve
Color: Without door
Wattage: 46 watts
Voltage: 12 Volts (DC)
Maximum Flow Rate: 3.9 Gallons Per Minute
Maximum Temperature: 124 Degrees Fahrenheit
Heat Output: 65000 British Thermal Units
Efficiency: Energy Efficient
Style: ExploreFlow Pro
Maximum Operating Pressure: 150 Pound per Square Inch
Mounting Type: Wall
Is Electric: No
Manufacturer: Ranein
Item Depth: 14.5 inches
Item Weight: 15.5 pounds
Item model number: RA65LH
Special Features: Anti-Freezing Protection, Dry Combustion Protection, LED Display, Overheat Protection, Pressure Release Valve
Included Components: Assembly pack x 1, Instruction manual x 1, Tankless water heater x 1, Wired gigital controller x 1
Batteries Included?: No
Batteries Required?: No
Date First Available: February 25, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Mar 14
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Style: ExploreFlow Ultra
Hello. First time Rv owner going full time living for a few years. I know little about RVs and tankless h2o heaters. I did hours and hours of research and pulled the trigger on the Ranein Nova + 3rd gen. It arrived when expected, excellent packing & communication from the seller. 1996 travel supreme 5th wheel with an old suburban 6gal h20 tank heater that was leaking. I paid for the install as I was busy with other details. The old access was to large for the Ranien so a simple 2x4 frame was added in order for the new system to be mounted securely and then the old door from the last heater worked fine and mounted up to the new frame made. Very easy install for a mobile rv tech and he hollered when he turned the tap on to see how long it took to get warm, He was shocked, stunned and was thoroughly impressed. I added the Wasserman water pump with accumulator tank recommended and a nice adjustable pressure regulator for the incoming water. Got it all dialed in and took a 40 minute shower, same temp the entire time and no changes in pressure or volume. Its functioned perfectly for the past 9 days. A nice surprise was that it came with the outdoor fittings installed and the outdoor shower kit as well, which was not assured from the Amazon listing and some reviews made no mention of it at all. But mine came as pictured from Ranein. The unit is small, compact, ready with hot water immediately and will provide the same temp water for as long as you want or have water. I cant wait to put a makeshift tub outside and fill it with hot water on a cold clear night and watch the night sky. Seems as if it doesnt use much propane at all. Time will tell and the whole thing is so flawless that I havent once had to read the manual and figure out the control panel and all its functions yet. Allowing me to focus on more immediate needs. Personally, I dont believe I will ever own a hot water heater system with a tank again, home or RV. It is just endless exact hot water, no rush, no water getting cold and for just myself...it is bliss. 5 stars
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Reviewed in the United States on December 20, 2025 by D ROUSH
Style: ExploreFlow Altitude+white
I took a seasonal job for the park service and had full Hooke ups at a campground at 6,800 feet elevation for the summer. Ground water around 45 degrees. I opted for this model as it was about 10k BTU more than the rest in the price range. I’m a professional hvac/r technician and appreciate the simplicity of the design. The unit fit perfectly in the place of the existing hot water tank, wiring was simple and the interface very easy to set and understand the readings. I set it to 120 at first but was way too hot for showers. So I lowered it to 106 which was just right for 100% hot water shower. Takes about 20-40 seconds to reach steady temp. Half hour shower was no trouble at all. Elevation and cold input water temp also no trouble at all. No cons k can speak to, works perfectly and worth every penny to have unlimited hot water on demand vs 3 minute scramble showers with the old baby hit water tank.
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Reviewed in the United States on October 27, 2024 by J. Phoned
Style: ExploreFlow Pro
The media could not be loaded. I recently installed the Ranein Tankless Water Heater in my vintage Boler trailer, and I couldn’t be more impressed. Hot water comes on almost instantly, and the temperature stays super consistent, even during longer showers or dishwashing. It works flawlessly with my RV water pump—the water pressure is smooth and steady with no sputtering or flow interruptions. I also tested it with different flow rates, and this unit keeps up effortlessly. No need to fiddle with knobs or adjust every time—I just turn on the faucet and get perfect hot water every time. You can check the water flow performance in the video I uploaded. If you're looking for a compact, responsive, and reliable tankless heater for your RV or off-grid setup, I highly recommend this one. It’s powerful, efficient, and a breeze to install.
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Reviewed in the United States on May 7, 2025 by paul paul
Style: ExploreFlow Altitude+white
I've had this for almost 2 years,can't believe how long my propane will last now. I can adjust the temperature to suit the task .it even turns itself on to prevent freezing and bursting.
Reviewed in the United States on February 16, 2026 by Ty Charleston
Style: ExploreFlow
I'm in love with this hot water heater for my RV. I live in the RV during the cold Montana winters and my old one, fresh out of warranty, decided to go out and so I replaced it with a tankless hot water heater. No more six gallon shower where there is barely time for rinsing my hair. Unlike my old heater, this one has a thermostat, allowing me to change the water temperature, which is an added blessing. The best part was how easy this was to install. No one wants to work on RVs so finding someone to do this was a nightmare but you can reassure them that this tankless hot water heater will fit right in the slot of the old one and has everything you need to hook it up. It takes less space and fits neatly. I had hot water right away, with good flow and took a very long shower. I will be saving money this winter, by going tankless. And, I no longer have to schedule my showers around the laundry or doing the dishes. This was a great purchase and the person who installed it was very impressed. Runs on gas only.
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Reviewed in the United States on December 3, 2025 by Deby
Style: ExploreFlow
Beats the old tank type heater and saves on propane. We really like not having to worry about running out of hot water with soap still in our hair, or elsewhere. Can't even hear it running when inside the motor home and low noise when outside, even when close. We have good water pressure, never have had any water leaks and I was able to install it using all the old water heater controls and wiring setup. It has good, straight forward controls and was easy to install control box in bathroom. It can get quite cold where we live so I built an exterior heater box using a reptile heater. Just flip the switch on cold nights and even on minus zero nights, we've never seen the inlet temp below 38 degrees.
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Reviewed in the United States on December 23, 2025 by Larry R. Miller
Style: ExploreFlow Pro
The product was relatively easy to install. It works well. The thermostat only goes to 125 which I am sure is a safety feature but I do wish it would go higher. Over all seems to be a good product.
Reviewed in the United States on February 15, 2025 by Herb Sandi Mckittrick
Style: ExploreFlow Pro
This a great product can run all four facets and it will keep the temperature the same
Reviewed in the United States on February 15, 2026 by Vernon Laswell