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TENGCHANG 18L LPG Propane Gas Hot Water Heater 90000 BTU Tankless Instant Boiler Digital Display with Shower

  • Based on 509 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by XFMOTO

Arrives May 15 – May 19
Order within 19 hours and 28 seconds
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Size: 18L


Features

  • 4.75 GPM Tankless Water Heater: TENGCHANG Tankless water heater with compact design saves more space and 90000 BTU energy efficient than traditional water heaters. Using at 3.63 - 116 PSI of water pressure, 4.75 gallons of hot water can be output per minute, the maximum temperature raise is 167F. Applicable only propane gas (LPG).
  • Efficient & Energey Saving: High efficiency propane gas tankless water heater with 90000 BTU delivers 4.75 GPM of instant hot water, no more waiting for long time. The heater exchanger and main burner adopt mostly advanced energy-saving and combustion technology to decrease gas consumption and burning noise.
  • Safety of Use: The hot water heater has overheat protection, dry combustion protection, flame failure protection, low water flow protection, high water pressure protection, Manifold Auto Protection. To avoid freezing in cold weather or in case of long time no use, please drainout the remaining water after using.
  • Inlet & Outlet Size: Gas pressure: 2800Pa, Gas pipe: G 1/2", Water Inlet: G1/2'', Water Outlet: G1/2''. NPT 1/2" female to G 1/2" male, Vent Type:4.3" Flue Duct.
  • Intelligent Control: Equipped with season control center, gas control center, water control center, can adjust different temperature and water quantity. Digital display is easier to check temperature. Automatic electric ignition powered by two size 'D' batteries (not included).

Brand: TENGCHANG


Product Dimensions: 13.4"W x 25.6"H


Special Feature: Dry Combustion Protection, Flame Failure Protection, Overheat Protection, High Water Pressure Protection, Low Water Flow Protection See more


Color: 18L Heater


Wattage: 36 KW


Brand: ‎TENGCHANG


Product Dimensions: ‎13.4"W x 25.6"H


Special Feature: ‎Dry Combustion Protection, Flame Failure Protection, Overheat Protection, High Water Pressure Protection, Low Water Flow Protection


Color: ‎18L Heater


Wattage: ‎36 KW


Voltage: ‎3 Volts


Maximum Flow Rate: ‎18 Liters Per Minute


Maximum Temperature: ‎167 Degrees Fahrenheit


Heat Output: ‎36 Kilowatts


Efficiency: ‎≥80.8%


Style: ‎Protection,Thermal


Maximum Operating Pressure: ‎116 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎TENGCHANG


Item Weight: ‎18.7 pounds


Item model number: ‎bf56e0da-9433-423f-9593-ac076935d35b


Size: ‎18L


Special Features: ‎Dry Combustion Protection, Flame Failure Protection, Overheat Protection, High Water Pressure Protection, Low Water Flow Protection


Date First Available: February 1, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 15 – May 19

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.

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Top Amazon Reviews


  • Working well so far
I bought this to use for a DIY pool heater I built. It's been set up for about a week or so and working great, water output can reach 160 degrees at times, far too warm but nice to know at the settings I'm using the machine isn't straining. It's very sensitive to water and gas pressure so it took me probably 30 minutes to dial in the gas pressure and water flow but once that's complete it's fully automated. So for cons. The manual is useless. It's very sensitive to gas pressure and if you have too much/little it will not ignite, buy a good regulator. Same for water, too little and the igniter won't function. Too much and it has a relief valve that ill drain the water out of the bottom.The display is in Celsius. The water/gas connectors aren't US standard so you'll need adapters. It has a 20 minute built in off timer so you'll need a water pump on a timer that runs for 20 min, off for a couple minutes, and back on if you want continuous use. Here's what I bought for adapters: Gas: Anderson Metals - 54046-0608 Brass Tube Fitting, Coupling, 3/8" Flare x 1/2" Female Pipe GasOne 2109-RED 4 ft High Pressure 0-20 PSI Adjustable Regulator Water: 1/2” G Thread (BSP) Female to 1/2” NPT Male Connector I also went and bought pvc connectors for running my water lines, I took the connector with me to the store but you'll need two 1/2" female 'screw on' connectors to attach hard lines. ... show more
Reviewed in the United States on October 2, 2022 by AAA

  • Hot Water On Demand!
We own two of these.... they are awesome and work well. Very easy to install and the pressure is great. The second one had a pin hole leak in one of the coils and it was promptly replaced by the company. They stand behind their product!
Reviewed in the United States on January 24, 2025 by Two Sharks

  • Dangerous Junk
I purchased this hot water heater and only used it less than a month. I turned on the hot water tap in my kitchen and heard the ignitor clicking but the water heater didn't light. With the tap still on I went to look at the heater to see what was up. I was met with a forceful fire ball just short of my face. I felt the force, but wasn't burned. The thing hasn't worked since. The item said that it was eligible for return until January 31, 2025. Upon starting the return process, I was met with a message stating that the return window ended November 1st this year. I'm lucky that I wasn't burned and that my trailer didn't burn down around me. It's dangerous junk and should be recalled. Now I'm out a hundred bucks and have no water heater for the winter! ... show more
Reviewed in the United States on November 21, 2024 by Jesse Stobaugh

  • Great item but low flow.
The only reason I didn't give it 5 stars was the low flow. It's not terrible but could be better.
Reviewed in the United States on April 24, 2025 by Sarah M.

  • I finally have hot water!!!
12/5/24 So my first unit I got would not turn on and after troubleshooting everything I could think of, I reached out to the seller and they sent me a replacement. It works!! Any time I turn my hot water on it automatically turns on and starts heating up. Super convenient for being offgrid. You just need steady water and gas pressure and it works like a charm! 2 years of boiling water for showers is over!! I'll update if it's no longer working. But if I don't update, its still doing the job! ... show more
Reviewed in the United States on December 6, 2024 by Melissa Gatto

  • Propane water heater for our food truck
Size: 18L
Worked perfect right out the box! So far so good
Reviewed in the United States on March 4, 2025 by Waltbaby

  • It works, but...
You get hot water, however, if you Don't have enough water pressure, it won't run. Unfortunately it only turns down so far, and then just shuts off, which is horrible, I should be able to make warm water not just hot, but I can't. This isn't a cheap water heater, but it's not expensive either, the value is somewhere in the middle. The water only gets hot for a little bit, then you have to have someone turn it back on. Which sux. The capacity of the water is great, because it's on demand. So heats up as it flows. The temperature is in C°, not F° temp. The quality is OK, like it could work better, I think. But for the price, and the fact that it works, is fantastic. It was easy to install as well, just make sure it's level when hanging, or it will NOT work. Must be level when hung. And you shouldn't use it in doors. I just hung mine outside my house, and ran lines inside. Works great! ... show more
Reviewed in the United States on November 11, 2024 by mill

  • Fantastic water heater
I love this tankless hot water heater it works very well I made a outdoor stand because I wanted to make it portable for outdoor use i also made an adapter so if I want i can hook up to my camp trailer perfect size for whatever I want
Reviewed in the United States on December 28, 2024 by Charles Edwards Charles Edwards

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