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Deal.ai › Gas Water Heaters
SHZOND
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

4.1(48 ratings)

Best price now

$138.90at WalmartChecked Nov 9

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Price facts

  • Last seen at $138.90 at Walmart on Nov 9.

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

The SHZOND 18L is a tankless natural gas water heater rated at 36 kW and about 4.8 GPM, meant to deliver hot water on demand without a storage tank. It runs on natural gas only and needs ventilation and a flue, so it is a job for a licensed installer rather than a plug-in appliance. Its appeal is endless hot water and a small wall footprint for a house or off-grid setup where electricity is limited. Against mainstream tankless brands it is a basic unit with fewer controls and no listed freeze protection or digital setpoint, and owners report a mixed record on reliability.

Best forHouseholds wanting endless hot water without a tankOff-grid or low-electricity homesKitchen or utility installs away from the bathroomBuyers comfortable with professional gas installation
Pros
  • Tankless design frees floor space
  • About 4.8 GPM and 36 kW for instant hot water
  • Runs on natural gas with no electric element
  • Heat and water separated so the unit can sit outside the shower room
  • Simple, low-maintenance design
Cons
  • Natural gas only; not for propane
  • Must be installed with ventilation and a working flue
  • Professional installation strongly recommended
  • No freeze protection or digital temperature control listed
  • Not for installation inside a shower room

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

  • WalmartNew

    In stockSold by MstgeReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $138.90Free shippingChecked Nov 9
    Visit Walmart

What reviewers say

  • 4.1 / 548 ratings

Ratings are decent overall, and buyers like the instant, endless hot water and the small wall-mounted size. Complaints center on installation demands and units that underperform or fail, which drags the average down.

What people mention
  • Hot water supplyPraisedBuyers say it delivers hot water instantly and without running out.
  • SizePraisedOwners like the small wall footprint compared with a tank.
  • InstallationCriticisedReviewers say setup is demanding and best left to a professional.
  • ReliabilityCriticisedSome buyers report units that underperform or fail.
  • VentilationMixedOwners note the strict flue and ventilation requirements.

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

This is a tankless natural gas water heater that heats water on demand. It delivers 18 L/min (4.8 GPM) of hot water and takes up less space than a tank heater. It runs on natural gas only, so it also suits off-grid areas or places where electricity is not readily available.

The heat source is kept separate from the bathing area. The unit is installed in the kitchen or another ventilated space, not in the shower room. It uses electric pulse automatic ignition powered by 2 D batteries (not included). It exhausts through an open, forced flue.

It is best installed by a professional and must be used with good ventilation and a working flue kit. Check the gas connection regularly for leaks. A shower kit is included.

Model
18L Natural Gas Water heater
Type
Tankless
Gas type
Natural gas only
Heat output
36 kW
Hot water output
18 L/min (4.8 GPM)
Gas pressure
2000 Pa
Water pressure
Min. 0.02 MPa, max. 0.8 MPa
Starting pressure
0.015 MPa
Thermal efficiency
≥80.8%
Water inlet
G1/2"
Water outlet
G1/2"
Gas hose
Rubber, 20 mm (0.79 in) outer diameter
Exhaust
Open and forced flue type, with automatic flue gas discharge

Specifications

color
SilverSource

Questions and answers

Does it run on propane?
No. It is built for natural gas only, at about 2000 Pa gas pressure. Do not connect it to propane.
Can it go inside the bathroom?
No. It must not be installed in the shower room. Mount it in a ventilated area such as a kitchen or utility space with a proper flue.
How much hot water does it produce?
It is rated at about 4.8 GPM with 36 kW of heat output, which suits a shower or household tap use.
Does it need electricity?
It uses natural gas as its heat source and is aimed at places where electricity is not readily available. Check the ignition requirements before buying.
Can I install it myself?
Professional installation is strongly recommended. Gas connections, ventilation and the flue all need to be done correctly.
What should I check before use?
Read the instructions, confirm the flue works, keep the area ventilated and check the gas connection regularly for leaks.
Where is the SHZOND 18L Natural Gas Hot Water Heater 5GPM On-Demand Tankless Instant Boiler w/Shower cheapest?
At Walmart, for $138.90, as of our latest check.
What do buyers say about the SHZOND 18L Natural Gas Hot Water Heater 5GPM On-Demand Tankless Instant Boiler w/Shower?
Rated 4.1 out of 5 from 48 ratings.

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Exhaust pipe
9 cm (3.54 in) output diameter; pipe not included
Ignition
Electric pulse automatic ignition; 2 D batteries, not included
Certification
CE, RoHS
Color
Silver
Package size
70 x 40 x 21 cm (27.6 x 15.7 x 8.3 in)
Gross weight
8.6 kg (18.96 lbs)
In the box
1 x gas water heater main body, 1 x shower kit, 1 x English user manual
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