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Ranein 15 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 Monday, Jun 8
Order within 15 hours and 32 minutes
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Color: Black


Set name: Door 15"X18"


Features

  • Basic: A black 15" 18" door designed for the Ranein RV water heater, complete with installation instructions.
  • Applicability: If you are replacing your Suburban 6 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: 6 Gallons


Power Source: NO


Product Dimensions: 18"W x 15"H


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


Power Source: NO


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


Mount Type: Wall


Is Electric: No


Capacity: 6 Gallons


Item Dimensions W x H: 18"W x 15"H


Item Depth: Minimal


Color: Black


Style Name: 15" x 18" Black


Brand Name: Ranein


Model Number: RA65-1518-B


Manufacturer: Ranein


Manufacturer Part Number: RA65-1518-B


Included Components: Door x1


Item Type Name: rv heater door


Material Type: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 8

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
Color: Silver Set name: RA65ZH
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

  • Worth reading!
Color: Silver Set name: RA65EH
My old suburban 12 gallon tank was leaking from the combustion chamber. So I researched as best I could over a week and settled on the Rainen on demand hot water heater. It’s now been installed for about two months of continuous use. It’s doing great. I spent November and December in Ohio where it got down into the teens for several nights. I do use a heated hose in those cold temps but it still had no trouble making 124 degrees. Even at near freezing with the hose heater off. It showed 35 degree inlet and 124 outlet. I was careful to order the 18x18 door combo which saved me $79 and had to frame the opening down to fit tank itself. It very easy, I just placed a 2x4 on edge along the top and left sides. I used Kreg pocket holes to hold them in place. Installed heater,and it fits perfectly, and then installed the door kit. Made all of the connections inside and had hot water in 30 seconds. I absolutely love it but I do have a few “complaints”. I would like a handing option on the door so that it can be made to open toward the front of the trailer. The T&P valve leaks above 60 psi and I had read this before buying it. With a regulator inline it doesn’t leak but it also can’t make enough volume to run two devices. Without the regulator it does fine. I need to find a high volume regulator. The ramp up for hot water is longer than a conventional tank. I knew this going in but when I dry camp it will be an issue for water loss. I think I will rectify this with a reclamation system. So the pros far outweigh the cons and it was half the money of the suburban unit I had that only lasted 5 years. ... show more
Reviewed in the United States on January 3, 2025 by Larry P

  • Great water heater
Color: Silver Set name: RA65LH
Solid, very capable unit. Easy to install, easy to operate. Bang for your buck!
Reviewed in the United States on April 30, 2026 by Justin Wood

  • Ranein 65000 btu tankless water heater
Color: Silver Set name: RA65SH with Door
Water heater was easy to install seems to be working good and it does get hot quickly hopefully it will last for a long while only been using it for about a week so far.
Reviewed in the United States on May 14, 2026 by Richard Scurlock

  • You can't go wrong by changing out your six gallon hot water heater for this.
Color: Silver Set name: RA65EH
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

  • Tankless water heater
Color: Silver Set name: RA65LH
This unit is wonderful. My grandson installed it yesterday when my hot water heater went out and it was a smooth install and it works wonderfully
Reviewed in the United States on May 4, 2026 by Deborah K Pottle

  • Works great
Color: Silver Set name: RA65EH
It fit into the existing space and was easy to install
Reviewed in the United States on May 21, 2026 by Ripbc

  • Game Changer
Color: Silver Set name: RA65LH
Wow. Game changer. It was easy to install in my 2019 Jayco Eagle. I watched a YouTube video on it. I pulled the old one out. Since I had a 15x18 inch space, I grabbed a 2x4 and filled in the space. Slid the new one in. The gas was standard. I experimented with the wires. There's only two needed to connect it to the RV itself, and two for the control panel. Now we have continuous hot water. I no longer run out of water washing dishes or taking a shower. I have a combo washer dryer and my clothes come out cleaner. One of the best adds I've done to my travel trailer. ... show more
Reviewed in the United States on May 5, 2026 by Eric Wahner

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