2025 GEN II Ranein 5L Portable Propane Water Heater, Outdoor Up to 1.58 GPM, 41,000 BTU On Demand Instant Hot Tankless Water Heater
Condition: New
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Availability:
12 left in stock
Arrives
Sunday, Oct 5
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Style: 5L
Features
- Instant tankless water heater: Unleash 41,000 BTU power for on-demand hot water in seconds! Flows 1.58 GPM at 55F-109F (13C-43C) with ultra-low 3.6 PSI start. Portable propane efficiency no storage tank needed.
- Ultra-portable outdoor water heater: Compact foldable handle + hanging chain for tree/RV mounting. 15-lb lightweight camping essential for beach showers, pet baths & RV trips. Setup in 90 seconds!
- 6-safeguard hot water heater: Auto-shutoff at 176F/80C + overheat/dry-fire/low-flow shields. Freeze-proof drain plug prevents cold-weather damage camping in mountains assured.
- No Waiting Required: Unlike traditional tank water heaters, tankless water heaters eliminate the need for a 30-minute preheating wait time, allowing you to have unlimited hot water on demand.
- Durable brass tankless water heater:Corrosion-resistant brass fittings + weatherproof housing. Adjust flow/temperature via ergonomic dials. Built for years of outdoor use.
- Complete portable hot water kit: Heater + showerhead + 5' gas hose/regulator + hanging chain + adapters + hardware pack. Ready in minutes zero tools required!
- Installation Tip: To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. Read the directions before installation check for gas leaks at all times before operating.
Brand: Ranein
Product Dimensions: 13.39"W x 7.68"H
Special Feature: Compact Design
Color: Gray
Manufacturer: Ranein
Manufacturer: Ranein
Item Weight: 14.33 pounds
Product Dimensions: 13.39 x 13.39 x 7.68 inches
Item model number: RO4K-Y
Color: Gray
Special Features: Compact Design
Included Components: Water heater x1
Batteries Included?: No
Batteries Required?: Yes
Date First Available: July 29, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 5
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: 5L
This little propane water heater turned my camping setup from “roughing it” to “glamping it.” It fires up fast, and within a minute you’ve got steady hot water. Perfect for showers, rinsing dishes, or filling up a tub when you don’t want to boil endless pots over a campfire. The 5L capacity is plenty for one person to take a decent shower without freezing halfway through. Temperature control actually works — no sudden icy blasts — and the pressure is strong enough to feel like a real shower, not a sad trickle. I’ve used it a few weekends in a row, and the flame starts up consistently without fuss. As for portability, it’s not heavy and has a sturdy handle, so hauling it around the campsite is no big deal. Build feels solid too; nothing rattles or feels cheap. I hooked it to a standard propane tank, and one fill lasted us through multiple showers plus dish duty. After a few hours of use total, it still runs like new. If you like camping but don’t love smelling like camping, this heater is worth it. Easy to set up, delivers hot water on demand, and makes outdoor life a whole lot more comfortable. Honestly, I’ll never go back to cold creek “baths” again.
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Reviewed in the United States on September 15, 2025 by Starlight
Style: 5L
This water heater is great for camping trips where warm water isn't immediately available. It can be hung from a tree or mounted to a rv, etc. It comes with a template that you can place on the wall so you know exactly where to put the mounting screws if you choose to mount it. This saves time and makes installation much easier! I like that the water flow and heat level are both adjustable. The unit itself seems to be a nice quality and I believe it is a fair value. It would be nice to be able to control the direction the vent blows out, but I haven't seen any water heater like this that has that ability, so I won't dock any stars for it; it's more just wishful thinking on my part. With that note, be cautious with where the vent blows because it is warmer air and may damage what it blows onto. This happened with a different portable water heater before which is the reason I looked at the vent on this one.overall, I'm really happy with this unit and have no complaints.
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Reviewed in the United States on September 3, 2025 by KC
Style: 5L
The Ranein 5L Portable Propane Water Heater is a reliable option for outdoor adventures, RVs, and camping trips. With a flow rate of up to 1.58 GPM and 41,000 BTU heating power, it delivers steady hot water on demand without the need for a bulky tank. Compact and portable, it’s easy to set up and connect, making it great for showering, cleaning, or washing dishes while off-grid. The design ensures efficient propane usage while still heating quickly and consistently. Safety features like automatic shutoff provide peace of mind during use. Lightweight yet durable, it’s convenient to transport and store. Whether you’re camping in the wilderness or upgrading your RV setup, this water heater ensures comfort by bringing reliable hot water wherever you go. A must-have for outdoor living.
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Reviewed in the United States on September 3, 2025 by Nhat Nguyen
Style: 5L
This little propane water heater has been such a great addition to our camping and RV trips. It heats water incredibly fast, and the portable design makes it super easy to bring along and set up anywhere. The whole kit is straightforward, and we had it ready to go in just a couple of minutes. It’s lightweight, reliable, and perfect for showers, dishes, or even rinsing off the dogs after a hike. This is a really convenient and worthwhile addition to our travel gear. Totally recommend!
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Reviewed in the United States on September 9, 2025 by CJM
Style: 5L
Absolutely love the convenience. No more waiting for a tank to heat up—hot water in seconds! The included showerhead and gas hose made it ready to use right out of the box. The safety features give me peace of mind. A fantastic purchase.
Reviewed in the United States on September 4, 2025 by AlexanderScott
Style: 5L
I was surprised by how quickly I had it running. No tools needed, and the instructions were clear. It hangs easily from a tree branch. The auto-shutoff safety feature is crucial for peace of mind. Endless hot water for camping showers is amazing.
Reviewed in the United States on September 4, 2025 by Belg.