Search  for anything...

Propane Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater

  • Based on 82 reviews
Condition: New
Checking for product changes
$399.00 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Sep 22
Order within 7 hours and 55 minutes
Available payment plans shown during checkout

Material Type: 4.3GPM 100,000BTU


Style: Propane


Features

  • Performance: The on-demand tankless water heater boasts a heating capacity of 100,000 BTU and a hot water flow rate of 4.3 gallons per minute (GPM). It can provide continuous hot water for 2-3 water supply points, making it sufficient to meet the hot water needs of a household's bathroom, kitchen, and bar area.
  • Upgrade features: Four Seasons Function: Automatically adjust the water temperature output based on the seasonal water temperature changes. Kitchen Function: Default water output temperature is 100F, suitable for kitchen use. Bathtub Function: Adjustable water output quantity with a reminder when the set output quantity is reached, catering to various environmental needs.
  • 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.
  • Warranty: We provide a 2-year warranty for the water heater. If you encounter any issues, please contact us.
  • Recommendation: We strongly advise that all installations of the device adhere to local building and plumbing regulations at the installation location, and should be carried out by licensed professionals.

Brand: Ranein


Product Dimensions: 18.89"W x 8.85"H


Special Feature: Four Seasons Function, Kitchen Function, Bathtub Function, No Waiting Required


Color: Gray


Voltage: 120 Volts (AC)


Brand: ‎Ranein


Capacity: ‎4.3 Gallons


Power Source: ‎gas_powered


Product Dimensions: ‎18.89"W x 8.85"H


Special Feature: ‎Four Seasons Function, Kitchen Function, Bathtub Function, No Waiting Required


Color: ‎Gray


Voltage: ‎120 Volts (AC)


Material: ‎4.3GPM 100,000BTU


Maximum Flow Rate: ‎4.3 Gallons Per Minute


Maximum Temperature: ‎149 Degrees Fahrenheit


Style: ‎Propane


Manufacturer: ‎RANEIN


Item Weight: ‎25.9 pounds


Country of Origin: ‎China


Item model number: ‎RH10K


Special Features: ‎Four Seasons Function, Kitchen Function, Bathtub Function, No Waiting Required


Included Components: ‎Tankless Water Heater x1, Use’s Manual x1, Vent Pipe x1, Assembly Kit x1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: May 31, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 22

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great Water Heater, Great Value
Material Type: 4.3GPM 100,000BTU Style: Natural Gas
I replaced my 14 year old, 40 gallon water heater with this tankless water heater. Installed it my self using the 42 page installation instructions available on line from the seller. Venting requires category 3 stainless steel 3 inch hardware which is readily available on line but rather expensive. However any tankless water heater would have the same requirement because of the high BTU requirement. The vent pipe which comes with the unit has very limited application. The mounting hardware which comes with the unit is not practical unless you are mounting to a tile or masonry wall. I used a couple of 1x 4 boards that I ran horizontally and attached to the wall studs with lag bolts and then used short lag bolts to mount the unit to the boards. Installation was relatively easy; connected gas using a flexible gas line ( make sure it is rated for 100,000 BTUs). I recommend you use a polyphosphate water filter ( available from Amazon for $80) in line with the input water line to reduce scale problems that can occur with hard water. I really like the display feature of the unit. It shows actual water temperature as well as set temperature, water flow rate, and gas consumption rate. It is a great feature. I am using the unit in a house with 3 full baths and 3 adults. 2 people can shower at the same time and there is still adequate water for the kitchen. The 4.2 gpm flow rate is adequate for us. The unit does a good job of maintaining a constant temperature. I have the unit installed in the garage. It is relatively quiet and I don’t hear it running in the house. The exhaust fan is very quiet; the loudest sound is just the water running thru the unit. I highly recommend this tankless water heater. ... show more
Reviewed in the United States on February 27, 2024 by MCS

  • Great product
Material Type: 4.3GPM 100,000BTU Style: Natural Gas
This is an easy to install and set up tankless water heater. Went from a 50 gallon tank to this and it is keeping up on the hot water demand just fine. I would recommend!
Reviewed in the United States on May 8, 2024 by Neena

  • Easy peasy!
Material Type: 4.3GPM 100,000BTU Style: Propane
Bought this for my mom’s house to replace her horrible propane hot water heater tank. 2 days running and she absolutely loves it! Heats relatively quickly given the length the hot water has to travel but really the best part was seeing her smile at having hot water again and not having to heat a tank all the time! Easy to install and easy to set the programming! I would definitely recommend this tankless hot water heater! ... show more
Reviewed in the United States on May 12, 2024 by Jenicker

  • Works good so far.
Material Type: 4.3GPM 100,000BTU Style: Natural Gas
Works good so far. I can shower or do the dishes and never lose the hot water. Glad i dumped the old hot water heater. For a simular unit around my town was twice the price. Lowes is the worlds worst about sticking to you on the prices.
Reviewed in the United States on November 23, 2023 by Amazon Customer

  • This product is not recommended for higher elevations
Material Type: 4.3GPM 100,000BTU Style: Propane
This tankless gas water heater is not for elevation above 2,000 feet and this was not disclosed. I purchased and installed to find out after contacting the manufacturer that this would not work in our elevation. The manufacturer recommended sending this product back. We sent the item back and sent the tracking and now they are telling us that we have to contact Amazon to request a refund. This item was installed after the 30 day purchase and we are unable to request a refund. Very disappointed in the customer service and the lack of detail that would have prevented us from purchasing this item to begin with. Out a water heater and a refund. ... show more
Reviewed in the United States on April 25, 2024 by Dana S.

  • good value and works well
Material Type: 4.3GPM 100,000BTU Style: Natural Gas
Use this for heating garage with underfloor heat. This is not the intended use for it, but works well. Had to contact the company to get the codes to raise max. temp to heat a high temp for my purpose. The helped me very quickly and even sent a you tube video on how to do it. it was 20 degrees F outside and was 60 in my garage, which is what the stat was set at. ... show more
Reviewed in the United States on May 10, 2024 by Thomas Mattson

  • Lite weight and easy to install
Material Type: 3.6GPM 80,000BTU Style: Natural Gas
We have a one bath home so this was the perfect size for us
Reviewed in the United States on June 9, 2024 by Amazon Customer

  • Miracle of modern engineering!
Material Type: 3.6GPM 80,000BTU Style: Propane
I tried a couple before this one and… Nightmare on Elm Street… But this sweet little baby Jane works like a champ. If you are connecting it to a propane tank, you’ll need to hit your local hardware store for a couple of fittings but nothing too, Frankenstein. we are using this in our wash rack for the horses so it’s use is occasional. Not sure that it would be suitable for an entire home. But for this purpose, fantastic, for an outdoor shower, lovely! Thank you, thank you to the manufacturer. You have made my horses very happy. They knicker all the way back to their stalls. 🤩 ... show more
Reviewed in the United States on May 18, 2024 by Rob Neal

Can't find a product?

Find it on Amazon first, then paste the link below.