Gen II Ranein RV Tankless Water Heater 65,000 BTU, On-Demand Propane Instant Hot Water, Zero Cold Water Start, Thermostatic Mixing Chamber, External Showerhead, High Altitude Ready, Family Use
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Availability:
In Stock.
Arrives
Sunday, May 17
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Style: ExploreFlow Ultra
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.
- Zero Cold Water Start/ Circulating Water Pump: Minimizes cold water shock at startup, providing quicker access to warm water for a more comfortable experience. A circulating water pump reduces hot water loss, saves energy and water consumption. Supporting a more sustainable lifestyle!
- 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.
- Pet-Friendly Shower Kit: The included shower head makes it simple to bathe your pets or clean muddy gear anywhere your journey takes you.
- 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.
- 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.
- Pressure Relief Valve Safety Protection: Equipped with a built-in pressure relief valve that automatically releases water if system pressure exceeds the safe operating range. This safety discharge helps protect the water heater and RV plumbing system from excessive pressure. Water operating pressure should be ranged from 10 PSI to 65 PSI.
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
Power Source: Liquid Propane
Special Features: Anti-Freezing Protection, Dry Combustion Protection, LED Display, Overheat Protection, Pressure Release Valve
Wattage: 46 watts
Voltage: 12 Volts
Flow Rate: 3.9 Gallons Per Minute
Maximum Temperature: 124 Degrees Fahrenheit
Heat Output: 65000 British Thermal Units
Efficiency: energy efficient
Mount Type: Wall
Is Electric: No
Color: Without Color
Style Name: ExploreFlow Ultra
Material Type: Heat exchanger copper
Capacity: 10 Gallons
Item Dimensions W x H: 15"W x 15"H
Item Weight: 13.43 Kilograms
Item Depth: 14.5 inches
Brand Name: Ranein
Model Number: RA65ZH
Manufacturer: Ranein
Included Components: Assembly pack x 1, External Shower x 1, Instruction manual x 1, Tankless Water Heater, Wired gigital controller x 1
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, May 17
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 Ultra
Worked great for about 3 months, then stopped all together. Customer service emails take weeks for replies and All I got was "we're sorry you have a EC code, it is a communications error code, we understand how frustrating it is" then asked a bunch of questions, sent the answer back and it's been over a month without a reply. $200/month for hot water is a horrible value. :/
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Reviewed in the United States on October 10, 2025 by Charly