SHZOND 18L Natural Gas Hot Water Heater 5GPM On-Demand Tankless Instant Boiler w/Shower
SHZOND 18L Natural Gas Hot Water Heater 5GPM On-Demand Tankless Instant Boiler w/Shower
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SHZOND

SHZOND 18L Natural Gas Hot Water Heater 5GPM On-Demand Tankless Instant Boiler w/Shower

|48 ratings

Key item features

  • Sleek Design: Features a modern, fashionable line shape with a magnificent thin-shaped appearance for aesthetic appeal.
  • Energy Efficient: Utilizes advanced energy-saving and combustion technology in its heater exchanger and main burner to reduce gas consumption and burning noise.
  • Low-Pressure Operation: Equipped with a water control linkage valve, allowing startup under low water pressure and stable flow under high pressure, suitable for water shortage areas or high-rise living.
  • Comprehensive Safety: Includes manifold auto protection, flame inspection for automatic gas shut-off during unexpected flameout, and over-temperature control.
  • Water Protection: Incorporates over-water pressure protection to automatically decrease pressure and an anti-freezing function to discharge stock water, preventing damage in cold conditions or during long periods of disuse.
  • Instant Hot Water: Provides instant, endless hot water using natural gas as the main energy material, eliminating waiting times and saving space.
  • Specific Application: Ideal for household use, including showering and washing pets, and suitable for off-grid locations or areas without readily available electricity.
  • Technical Specifications: Operates with Natural Gas (2000 Pa), delivers 18 L/min (4.8 GPM) hot water output, and has a thermal efficiency of 80.8%.
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Specs

Water heater type, Tankless Water HeatersFuel type, Natural Gas, ElectricVolume capacity, 18 LPower type, GasWatts, 36 kWRec location, Indoor, Bathroom, Kitchen

About this item

Product details

DESCRIPTION

Noted: Can't be installed in the shower room！！！

The listing is about 18L 4.8GPM Natural Gas Tankless Instant Hot Water Heater Our gas water heater uses the  Natural Gas as the main energy material. Its advantage is instant, without waiting, and the smaller footprint can save a lot of space. You get instant, endless hot water wherever you are!

Application：

The gas water heater 18L-LNG is perfect for the house. Take a hot shower or wash the dogs. It makes it great for off grid or other areas where electricity is not readily available. Safety, the gas water heater to achieve heat and heat separation, bathed in the bathroom, installed in the kitchen, to avoid the risk of leakage during the bathing process.

Precautions：

For the sake of your safety, please read following information carefully before using our products:

1. Every type of gas water heater is only suitable for one kind gas. And our 18l tankless instant hot water heater uses Natural Gas.

2. Please read the instructions carefully before using the gas water heater, and in strict accordance with the instructions to use, maintenance of the water heaters.

3. It is highly recommended to be installed by a professional.

4. Must be used under the condition of ventilation, ensuring the normal condition of the flue kit.

5. Please check the gas connection regularly to ensure there is no leaking risks.

Specifications

Model : 18L Natural Gas

Water heater Type : Tankless

Heat Output Power : 36 KW

Gas Pressure(LNG) : 2000 Pa

Hot Water Output : 18 L/min (4.8 GPM)

Use Gas Type : Natural Gas

Rubber Gas Hose(Outer diameter) : 20 mm (0.79 inch)

Water Inlet : G1/2''

Water Outlet : G1/2''

Suitable Water Pressure : Min.: 0.02 MPa Max.: 0.8 MPa

Certification: CE, ROHS

Starting Pressure : 0.015 MPa

Thermal efficiency : ≥80.8%

Smoke Exhaust Pipe Output Diameter : 9 cm (3.54 inch) (Smoke exhaust pipe not included )

Exhaust Way : Open & Force flue exhaust type

Discharge Ways : Flue automatic gas discharge

Fire Catching Ways : Electricity pulse automatic fire catching

Ignition : Powered by 2 size 'D' batteries (batteries not included)

Package Size : 70 x 40 21 cm (27.6 x 15.7 x 8.3 inch)

Gross Weight : 8.6 kg (18.96 lbs)

Package Includes:

Gas Water Heater Main Body x1

Shower Kit x 1

English User Manual x 1

  • 1. Modern fashionable line shape designed, magnificent thin-shaped appearance.
  • 2. High efficient energy saving. The heater exchanger and main burner adopt mostly advanced energy-saving and combustion technology to decrease gas consumption and burning noise.
  • 3. Low water-pressure startup.The water control linkage valve makes the heater start up under low water pressure and stable water flowing under high pressure to meet the requirements of those in water shortage areas and those living in high stairs.
  • 4. Manifold auto protection, Lon flame inspection.For the sake of your safety, automatically shut down gas power under unexpectable flameout.
  • 5. Controller design, over heat protection.Both cold water and warm water can be properly controlled.
  • 6. Over water pressure protection function, anti-freezing protection function.Automatically decrease pressure under excessive high water pressure. The anti-freezing apparatus can discharge the stock water to avoid damaging machine itself by freezing under cold areas or in case of long time no use.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Water heater type

Tankless Water Heaters

Fuel type

Natural Gas, Electric

Volume capacity

18 L

Power type

Gas

Warranty

Warranty information

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4 out of 5 stars
stars
48 ratings24 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars67% (32)
  2. 4 stars2% (1)
  3. 3 stars6% (3)
  4. 2 stars17% (8)
  5. 1 star8% (4)
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Showing 1-3 of 24 reviews

Jun 25, 2026
Reviewer name: anonymous
Sold and shipped bySHZOND
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I was skeptical because of the price, however, I have had no issues with this unit. Easy to install, quick to heat water. and works like advertised. If you are looking for a cost effective option, this is a solid choice!

Helpful?7GDFHXM6G33D5163963471
Oct 1, 2025
Reviewer name: lorilei
Top Reviewer
Sold and shipped bySHZOND
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Go for it!

It has been great very pleased

Incentivized Review
Helpful?7GDFHXM6G33D5163963471
Dec 22, 2025
Reviewer name: Dale
Sold and shipped bySHZOND
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

It fit perfectly in my old Water Heater Cabinet. The G 1/2 connecter are easily adapted to 3/4 npt and jiy to use existing Water and Gas lines they only needed to be lengthened. The Flue is perfect and because the Ignition is Battery powered no 120 outlet required. Definitely a great replacement at a bargain price 👍

Incentivized Review
Helpful?7GDFHXM6G33D5163963471
Current price is $138.90
Price when purchased online
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Sold and shipped by Mstge
4.618421052631579 out of 5 stars
4.6 stars out of 5, based on 76 seller reviews(4.6)
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Free Holiday returns until Jan 31