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SNDOAS Tankless Hot Water Heater Natural Gas, 4.23 GPM 16L Tankless Water Heater Indoor Use,85,300 BTU Forced Exhaust Instant Hot Water Heater,LED Display,Whole House, Multi-Protection,Black

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Availability: Only 2 left in stock, order soon!
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Arrives Thursday, Jun 4
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Color: Black


Size: 4.23 GPM 85,300BTU(Indoor)


Features

  • High-Efficiency Tankless Hot Water On DemandExperience instant and endless hot water with our gas tankless water heater, delivering up to 4.23 GPM (16 L/min) flow rate. Perfect for whole-house use, it effortlessly handles multiple showers and appliances simultaneouslyno more waiting for water to heat up
  • Safe Forced Exhaust & Reliable Natural Gas OperationDesigned with a forced exhaust system, this indoor tankless gas water heater safely vents combustion gases outside, preventing CO buildup. It runs on natural gas only, ensuring consistent performance and peace of mind for your family
  • Fast Heating with Copper Heat Exchanger & Precise Temperature ControlEquipped with an oxygen-free copper heat exchanger, our gas water heater provides rapid heating and excellent thermal efficiency. The smart LED display shows real-time temperature and usage, while maintaining water within 2F of your set point (95F149F)
  • Quiet Operation and Easy Installation for Indoor SpacesThis tankless water heater gas model runs quietly and mounts neatly on any wall in well-ventilated areas like kitchens or bathrooms. Includes exhaust pipe and showerheadjust plug into a standard 120V/60Hz outlet for hassle-free setup
  • User-Friendly Design with Clear MonitoringControl everything at a glance! The intuitive panel of this instant water heater displays temperature, settings, error codes, and gas/water consumption. Ideal for American households, it combines convenience with energy savings in a compact, white finish

Brand: SNDOAS


Power Source: gas_powered


Product Dimensions: 13.8"W x 21.6"H


Special Feature: LED Display


Color: Black


Power Source: gas_powered


Special Features: LED Display


Voltage: 120 Volts


Flow Rate: 4.23 Gallons Per Minute


Maximum Temperature: 149 Degrees Fahrenheit


Heat Output: 85300 British Thermal Units


Efficiency: High-Efficiency


Mount Type: Wall


Is Electric: No


Color: Black


Brand Name: SNDOAS


Model Number: IF.JSQ25-B13NA


Manufacturer: SNDOAS


Included Components: Touch Control


Item Dimensions W x H: 13.8"W x 21.6"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 4

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


  • Unlimited hot water!
Color: Gray Size: 4.75 GPM 10,2000BTU(Indoor)
It’s wonderful having basically unlimited hot water. It does take a bit to get hot water to the second floor, but it is a great investment!
Reviewed in the United States on April 2, 2026 by Mitch Tucker

  • Consistent Hot Water
Color: Black Size: 4.23 GPM 85,300BTU(Indoor)
I recently installed the SNDOAS Tankless Hot Water Heater Natural Gas 4.23 GPM 16L and overall I’m very happy with its performance. The biggest advantage is the instant hot water. Unlike traditional tank heaters, this unit heats water only when you turn on the faucet, so you don’t have to wait long for hot water and you don’t run out during longer showers. The 4.23 GPM flow rate (16 liters per minute) provides a steady supply of hot water that works well for typical household tasks like showers, washing dishes, or doing laundry. Units with this capacity can usually handle one or two water fixtures at the same time depending on temperature settings and incoming water temperature. ... show more
Reviewed in the United States on March 12, 2026 by Nece

  • Very nice product.
Color: Gray Size: 4.75 GPM 10,2000BTU(Indoor)
It works as described! It was a very straight forward install replacing my 12 year old 40 gal tank. Took a while as I had to tear out the old floor and replumb the unit, Hopeful it is durable . I live in west Arizona so we don't use Hot water in the summer! LOL Price was reasonable and arrived quickly as usual. I am very satisfied with my purchase ... show more
Reviewed in the United States on April 21, 2026 by Raymond M. Clark

  • Hot water doesn’t last
Color: Black Size: 4.23 GPM 85,300BTU(Indoor)
I’m having big problems with it keeping the hot water going for more than 7 to 10 minutes. So I will contact the seller and give opportunity to make it right
Reviewed in the United States on April 5, 2026 by Michelle

  • Works great
Color: Gray Size: 4.75 GPM 10,2000BTU(Indoor)
My mom water heater recently broke which is a big no no in the winter. She needed something quick and affordable. I was skeptical to purchase such a thing from here but I’m glad i did. It does exactly what it’s supposed to do. Not that heavy at all but feels very durable. It was easy for her to install and the water temp is perfect on it ! We are happy !! ... show more
Reviewed in the United States on January 12, 2026 by Absolutelyy_ashley

  • Great small water heater
Color: Black Size: 4.23 GPM 85,300BTU(Indoor)
The media could not be loaded. Making a small bathroom in our basement this is perfect. I unfortunately don’t have a picture of it installed because the bathroom isn’t done yet. This is exactly what we needed. Seems very easy to set up. Came with everything it needs. well packaged! well priced!
Reviewed in the United States on March 3, 2026 by Naomi

  • Safety features and designed to be durable convinced me this is the way to go!
Color: Gray Size: 4.75 GPM 10,2000BTU(Indoor)
This will be replacing our tank water heater. It’s best to have 2psi metering pressure at the house pipe and keep the Maxitrol regulator as close as possible to the water heater. Your utility verify the 2psi to the house. This water heater will handle our needs. From shower to laundry to dishwasher its 102,000 BTU burner and a high flow rate of 4.75 GPM is more than up for the job. Built to be durable and lasting with parts such as the copper heat exchanger and burner that is multi row which gives off a consistent heat from the stable combustion. Designed to give consistent heat and water pressure. Safety feature of sealed forced exhaust (flue) system that removes all combustion gases directly outside through the included vent pipe. Instructions included although we are going to have it installed by a heating and plumbing company due to no fault of the water heater setup. Just a bit elderly now and easier to have them hookup. Plus the heating company will have the equipment to measure the PSI inside delivered to the heater. I will be updating if any issues which I am not anticipating. Great value for the price! ... show more
Reviewed in the United States on January 6, 2026 by shivamuck

  • Quiet on demand heater that keeps up
Color: Gray Size: 4.75 GPM 10,2000BTU(Indoor)
I have been running this tankless water heater for a little bit now and it has completely changed how hot water works in my house. The first thing I noticed was how compact it is compared to a traditional tank. It mounted cleanly on the wall and did not take over the utility space. Build quality feels solid and well put together and the unit looks modern. Once it was hooked up the instant hot water was obvious. I can run a shower and the kitchen sink at the same time without the temperature dropping which is a big win. The LED display is easy to read and adjusting the temperature is simple and precise. It runs quieter than I expected and does not sound like a machine working overtime. From daily use it feels efficient and dependable and overall a good value for the performance. This is best for households that use hot water in multiple places at once and may not be ideal for very low gas pressure setups. ... show more
Reviewed in the United States on December 31, 2025 by CrazyCar13

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