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2025 GEN II Ranein Natural Gas Tankless Water Heater Max 8.5 GPM, 190,000 BTU Indoor On Demand Instant Hot Water Heater with LED Temperature Control Panel

  • Based on 4 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Sep 24
Order within 3 hours and 35 minutes
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Material Type: 8.5GPM 190,000 BTU (Indoor)


Style: Natural Gas


Features

  • High-Efficiency Endless Hot WaterBoasts max 8.5 GPM flow & 190,000 BTU output, supporting 4-6 taps (shower/kitchen/bar/laundry) for continuous household hot water needs.
  • Steady Temperature for Daily ComfortAdvanced tech maintains stable water temp, auto-adjusting flow/heat to avoid sudden changes perfect for showers and daily use.
  • Powerful & Safe Bottom BlowerBottom-mounted blower prevents smoke backflow; auto-adjusts speed for full gas combustion, plus low noise and longer service life.
  • Energy-Saving to Lower BillsHeats water on demand, cutting standby energy waste vs traditional tank heaters reduces utility costs and supports eco-living.
  • Space-Saving Wall-Mounted DesignCompact gas tankless heater fits apartments/small homes/renovations frees up valuable floor space while supplying hot water.
  • Premium Durable BuildStainless steel body resists temp/corrosion; oxygen-free copper tank cuts heat loss, fitting standard 3/4" NPT water/gas ports.
  • Professional Installation AdviceMust be installed by licensed pros per local codes not recommended for areas over 2,000 feet elevation.

Brand: Ranein


Product Dimensions: 15.07"W x 24.24"H


Special Feature: LED Display


Color: Gery


Voltage: 120 Volts (AC)


Brand: ‎Ranein


Product Dimensions: ‎15.07"W x 24.24"H


Special Feature: ‎LED Display


Color: ‎Gery


Voltage: ‎120 Volts (AC)


Maximum Temperature: ‎149 Degrees Fahrenheit


Style: ‎Natural Gas


Mounting Type: ‎Wall


Manufacturer: ‎Ranein


Item Weight: ‎46.7 pounds


Item model number: ‎RH19K-NG


Special Features: ‎LED Display


Included Components: ‎Assembly Kit x1, Manual x1, Tankless Water Heater x1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: July 29, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 24

This item is non-returnable:

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


  • No more running out of hot water
Material Type: 4.3GPM 100,000 BTU (Indoor) Style: Propane
Indoor tankless propane hot water heater, max 4.3 GPM, 100,000 BTU. It features instant hot water as there is no tank to heat or keep heated. It also lowers your yearly cost of heating water. With this being tankless you can now enjoy those longer showers or filling your tub with hot water, all the way up instead of it turning cold in the middle. It comes with the vent tube and different attachments for the LPG gas line. I found this to almost be a necessity as well as a good value. These can be very expensive. ... show more
Reviewed in the United States on August 30, 2025 by Brian in LV Brian in LV

  • Powerful and Efficient Tankless Water Heater
Material Type: 3.6GPM 80,000 BTU (Indoor) Style: Natural Gas
The Ranein Natural Gas Tankless Water Heater delivers instant hot water on demand, making it an excellent choice for indoor use. With a maximum flow rate of 3.6 GPM and 80,000 BTU capacity, it efficiently heats water for showers, sinks, or other household needs without the wait associated with traditional tank heaters. The LED temperature control panel is intuitive and precise, allowing for easy adjustments and consistent water temperature. Installation is simplified with the included vent pipe for safe exhaust to the outside, ensuring proper ventilation. Compact and space-saving, this tankless heater is ideal for homes with limited utility space. Its reliable performance, modern controls, and energy-efficient design make it a practical upgrade for anyone looking to enjoy continuous hot water while reducing energy waste. ... show more
Reviewed in the United States on August 26, 2025 by Nhat Nguyen

  • Nice
Material Type: 4.3GPM 100,000 BTU (Indoor) Style: Propane
This is a nice propane gas tankless water heater. Smart and advanced, this is good for a small to medium sized house under 2,000 square feet. Saves energy verses tank water heaters, this one can detect water flow and inflow temperature to adjust for constant output water temperature. Good quality and includes exhaust pipe. Priced very well and has a coupon now, so great deal. ... show more
Reviewed in the United States on August 26, 2025 by Rock

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