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Ranein 18 x 18 Inches RV Water Heater Black Door. ONLY Door kit for Ranein RV water heaters

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Aug 2
Order within 12 hours and 32 minutes
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Style: 18" x 18" Black


Features

  • Basic: A black 18" 18" door designed for the Ranein RV water heater, complete with installation instructions.
  • Applicability: If you are replacing your Suburban 10/12/16 gallon water heater with a Ranein RV water heater, please use this product for installation.
  • Easy Installation: The flush mount door fits snugly against the sidewall, providing a neater appearance and reducing the risk of leaks.
  • Durable: Made of galvanized steel, the door is both durable and sturdy. It is professionally designed to be waterproof and to prevent mosquitoes from entering your water heater.
  • Anti-bump: The doors are equipped with sturdy hinges to withstand the bumps of the journey.

Brand: Ranein


Capacity: 10 Gallons


Power Source: NO


Product Dimensions: 18"W x 18"H


Special Feature: Flush Mount, Waterproof, Mosquito-proof, Anti-bump Hinges


Brand: ‎Ranein


Product Dimensions: ‎18"W x 18"H


Special Feature: ‎Flush Mount, Waterproof, Mosquito-proof, Anti-bump Hinges


Color: ‎Black


Style: ‎18" x 18" Black


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎Ranein


Part Number: ‎RA65-1818-B


Item Weight: ‎7.2 pounds


Item model number: ‎RA65-1818-B


Special Features: ‎Flush Mount, Waterproof, Mosquito-proof, Anti-bump Hinges


Included Components: ‎Door x1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: May 13, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Perfect, easy & endless hot water
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 ... show more
Reviewed in the United States on December 20, 2025 by D ROUSH

  • Exceeded expectations
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. ... show more
Reviewed in the United States on October 27, 2024 by J. Phoned

  • Fast, Reliable Hot Water—Perfect for My RV Setup!
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. ... show more
Reviewed in the United States on May 7, 2025 by paul paul

  • Awesome heat and no waste
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

  • You can't go wrong by changing out your six gallon hot water heater for this.
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. ... show more
Reviewed in the United States on December 3, 2025 by Deby

  • So nice not to have to worry about getting a surprise cold shower.
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. ... show more
Reviewed in the United States on December 23, 2025 by Larry R. Miller

  • Camper waterheater
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

  • Very easy to install
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

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