TENGCHANG 18L LPG Propane Gas Hot Water Heater 90000 BTU Tankless Instant Boiler Digital Display with Shower
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Availability:
14 left in stock
Arrives
Thursday, Feb 26
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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
Capacity: 18 Liters
Power Source: Liquid Propane
Product Dimensions: 13.4"W x 25.6"H
Special Feature: Dry Combustion Protection, Flame Failure Protection, High Water Pressure Protection, Low Water Flow Protection, Overheat Protection See more
Brand: TENGCHANG
Product Dimensions: 13.4"W x 25.6"H
Special Feature: Dry Combustion Protection, Flame Failure Protection, High Water Pressure Protection, Low Water Flow Protection, Overheat 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, High Water Pressure Protection, Low Water Flow Protection, Overheat Protection
Date First Available: February 1, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Feb 26
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 12L
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.
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Reviewed in the United States on October 2, 2022 by AAA
Size: 12L
I love this thing. I think everyone would if they understood what is required for the installation. The two biggest things to know: Use a low pressure LP regulator. Make sure your water source has enough volume and pressure. A garden hose is fine. If you are camping you may need a different pump to run this. It must have adequate flow and pressure or the unit will not light. It's a self protection safety feature built in to the unit. Same with the regulator. Will not light with a high pressure regulator. I use this daily on the back deck to wash Moose off. (My chocolate Lab) He gets muddy and can't come inside without a quick shower. This thing is perfect and he loves the warm water. I did buy a better more durable shower head and hose for it. The one it comes with is pretty cheap, but that's ok. The unit itself is very well made and durable. I turn the water on, it starts automatically and the water is warm in a few seconds. It is faster than my own shower by far. If you have been thinking of buying one of these this is it. It makes all the hot water you would ever need for a shower and more. 5 stars, Definitely!
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Reviewed in the United States on January 13, 2021 by orygunwon6489
Size: 6L
Slow water output does not heat up very well.. dissatisfied was going to return it but they were not offer free shipping for returns. Find you something else.
Reviewed in the United States on January 3, 2026 by fsanderson
Size: 8L
works well, better than the smaller capacity units. I did replace the shower head with a better more flexible hose and multiple spray options,It makes hot water quickly, only wish the display was able to change from Celsius to Fahrenheit. Maybe us Americans should just switch to Celsius like the rest of the world.
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Reviewed in the United States on July 23, 2025 by Thomas J Plourde
Size: 18L
This is a awesome product. It requires a propane regulator to work correctly. The company shipped it immediately. Thank you!
Reviewed in the United States on February 8, 2026 by Chris Goeller Chris Goeller
Size: 18L
Easy to install. Love that it uses battery power so still get hot water even if house losses power. Display is in centigrade and cannot be charged to Fahrenheit.
Reviewed in the United States on October 25, 2025 by Jay Safford
Size: 10L
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!
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Reviewed in the United States on November 11, 2024 by mill
Size: 6L
Got this to shower while camping. It has been great. Works perfectly. Only negative is that there are screws that protrude out the back that I needed to cover to protect the side of my camper where I hung this from.
Reviewed in the United States on September 16, 2025 by Bailey Kessing