Ranein Propane Gas Tankless Water Heater, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
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Availability:
In Stock.
Arrives
Wednesday, Jul 22
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Color: Gray, Propane
Set name: 4.3GPM Indoor
Features
- Powerful On-Demand Heating: 100,000 BTU & 4.3 GPM for this tankless water heater propane, supports 3-4 water points simultaneously, delivers endless propane hot water on demand with no waiting.
- 4 Intelligent Preset Modes: One-click switch for 4-season/Kitchen/Bathtub/Shower modes on the propane tankless water heater; 4-season auto-matches temp, kitchen defaults to 100F, bathtub supports 50-800L volume adjustment.
- Precision Temp Control: Gas-water-temperature intelligent linkage for the propane heater, 95F-155F adjustable range, high-temp lock prevents scalding, safe for kids and elders.
- Oxygen-Free Copper Heat Exchanger: Enhances heat transfer efficiency of the propane hot water heater, corrosion-resistant and durable; paired with enhanced combustion tech for energy saving.
- All-Round Safety & Anti-Freeze Protection: Equipped with dedicated anti-freeze device, resists 14F/-10C low temperature to effectively prevent pipe freezing and cracking; plus overheat, dry burn, exhaust blockage and low water pressure startup protection; powerful fan exhaust prevents CO leakage.
- Clear LED Display & Temp Memory: LED screen shows real-time water temp, operating status and fault codes; temp memory retains preferred settings, no repeated adjustment needed for the propane tankless heater.
- Included Vent Pipe & Installation Note: Comes with original vent pipe (no extra purchase) for the indoor propane tankless water heater. Install by licensed professionals, not for >2,000ft elevation. Recommend draining water completely if temp drops below 14F/-10C or unused for long to prevent pipe cracking.
Description
100,000 BTU Water Heater 80,000 BTU Water Heater 130,000 BTU Water Heater 190,000 BTU Water Heater 130,000 BTU Water Heater 190,000 BTU Water Heater Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store
Brand: Ranein
Capacity: 4.3 gallons
Power Source: Liquid Propane
Product Dimensions: 14.17"W x 22.05"H
Special Feature: Four Seasons Function, Kitchen Function, Bathtub Function, No Waiting Required
Power Source: Liquid Propane
Special Features: Four Seasons Function, Kitchen Function, Bathtub Function, No Waiting Required
Voltage: 120 Volts
Flow Rate: 4.3 Gallons Per Minute
Maximum Temperature: 155 Degrees Fahrenheit
Heat Output: 100000 British Thermal Units
Maximum Pressure: 116 Pound per Square Inch
Mount Type: Wall
Is Electric: No
Capacity: 4.3 gallons
Item Dimensions W x H: 14.17"W x 22.05"H
Item Depth: 13 inches
Material Type: Propane
Brand Name: Ranein
Model Number: RANEIN-43GPM-100KBTU
Unit Count: 1.0 Count
Manufacturer: Ranein
Manufacturer Warranty Description: 2 Year Manufacturer
Included Components: Assembly Kit x1, Tankless Water Heater x1, Use’s Manual x1, Vent Pipe x1
Item Type Name: tankless water heater LPG
Color: Gray, Propane
Style Name: Propane
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jul 22
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
Great product. It’s been 4 months or so since install and it’s working perfectly. Two showers+laundry+ 2 sinks running all at same time and keeps it at the temperature all day long. It heats up 75°F to 120°F in roughly 5-7secs. Super fast. Propane is really expensive here at Hawaii. This’ll save us a lot of money. One small thing is the installation instructions aren’t that great. And it didn’t come with the top bolt/screw thing it tells you to use to hook it on first. Just wall screws and anchor. Ended up not using it. Just bolted it to a 2x4 I installed on the wall. Much easier and more sturdy like this. Other than that installation is straight forward.
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Reviewed in the United States on July 14, 2025 by KK KK
Material Type: 4.3GPM 100,000BTU (Indoor)
Style: Natural Gas
Great price for what you get. Installation was easy. Like everything you buy, the heater doesn't come with everything you need. Every Installation will be different from application to application. I would suggest the Installation be done by a qualified technician/experienced plumber. There is no difference in water flow or pressure. The unit is fairly quiet during operating and silent when not in use. The water heats up very quickly within just 30 seconds to the tap. Shower was nice and hot the entire time. No fluctuations in temperature at all. Great upgrade to your home!!!
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Reviewed in the United States on July 24, 2025 by Erik Sager Erik Sager
Material Type: 4.3GPM 100,000BTU (Indoor)
Style: Natural Gas
Surprised. It works great in our 2-person home. It is reliable and isn't overly complicated. I had purchased a $1000 unit from Lowe's and it was so complicated, if you sneezed near it during installation, it would throw an error code. This one is less than half that price and is plug-and-play. It effortlessly supplies hot water to laundry/dishwasher and to someone in the shower simultaneously without issue. I own rentals and have purchased 4 of them now and will buy a 5th.
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Reviewed in the United States on July 10, 2025 by Maria Castleberry
Material Type: 3.6GPM 80,000BTU (Indoor)
Style: Propane
We have a really nice bathroom for a hipcamp operation but there was no practical way to get hot water to it. I was amazed at how many people took cold showers, so I set to solve that. This water heater is awesome it works very well, the showers are plenty hot, and we have a lot of happy campers. We raised the overnight stay rate from $28 to $34 / night and peopel are happy to pay a bit extra for a shower, and they stay longer. The small investment in the heater will pay off in the end. We had a leaky pressure relief valve. I tried all the customary fixes to stop the steady small drip, but sent a note to the compay. In the interim, I went to Home Depot, grabbed a new relief valve and installed it. I sent a copy of the invoice to the seller and they refunded the cost to our account. It's hard to beat that. All in all a good product for a fair price. We're very happy.
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Reviewed in the United States on July 25, 2025 by Thud
Material Type: 4.3GPM 100,000BTU (Indoor)
Style: Propane
So far so good. Takes a few minutes to get hot but is an acceptable time frame.
Reviewed in the United States on July 21, 2025 by Kindle Customer
have had this for a year, after being replaced once, it still has this problem: when water pressure is low, or when you try to balance it for lukewarm water, it goes cold. also at low pressure, or being set to low pressure it also stays or goes cold. in the shower it will go cold if someone tries to use hot water at another station. has anyone else had this kind of problem? I'm going to call to see if warranty will cover it, but am really interested if anyone else has had this going cold problem.
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Reviewed in the United States on July 17, 2025 by Amy Revilla
Material Type: 3.6GPM 80,000BTU (Indoor)
Style: Natural Gas
Wow is all I can say ! Lowered my gas bill ! Takes up so little room. Easy to install. The only disadvantage is that it takes a minute to get hot water. The pluses out weigh the negatives
Reviewed in the United States on July 15, 2025 by Judy
Material Type: 4.3GPM 100,000BTU (Indoor)
Style: Natural Gas
This is a great water heater. Installation was easy. The water flow is sensitive is excellent. It turned on every time hot water was needed. Even with a low amount of hot water flowing, it turned on within a couple of seconds.
Reviewed in the United States on August 2, 2025 by Robin W