Best Marey Tankless Water Heater Reviews 2020

best marey tankless water heater review

Have your monthly energy bills started getting on your nerves and you don’t know the ways to control them? If yes, having a tankless water heater is the best solution for you. As the name indicates, tankless water heaters do not have water storage tanks. Instead, these heaters heat the water as it moves through the pipes and maintains a constant supply of water.

What is all that buzz about tankless water heaters?

If you aren’t familiar with tankless heaters already, you might find it challenging to comprehend the significant differences they possess.

Here’s the answer to your probes:

According to several reports, you can cut 10-50% of your energy bills if you switch from traditional water heaters to the tankless ones. Sounds appealing, right? But what if I tell you that the perks of having a tankless heater aren’t confined to energy-saving only?

Moreover, once you get an excellent tankless water heater, it will serve you for good 18-20 years, unlike those bulky water heaters which won’t last longer than ten years.

Tankless water heaters are a one-time investment. After you buy a great tankless water heater, the budget for its upkeep and repair will go down smoothly. It’s a win-win situation for you.

Why should you prefer Marey water heaters?

When you step out to find a good tankless water heater, the enormous list of options will make you puzzled big time. Some brands might try to trap you by flaunting their smart heaters while others will try the low-price-tag charm on you. Either way, the chances of crap quality heaters are there.

That’s when Marey tankless water heaters come to the rescue. Marey is producing top-notch water heaters since 1955, and the number of their pleased customers is uncountable. If you’ve decided to go tankless, try Marey and forget the worries of always-rising energy bills.

Marey’s 24×7 customer support service is there for you if need guidance about installing your new water heater or altering its settings. The takeaway is, Marey is always on top of its game when it comes to tankless electrical and gas heaters.

I have written this article to do detailed and honest Marey tankless water heater reviews and equip you with mandatory knowledge of Marey water heaters.

Bear with me till the end, and let’s explore the best Marey tankless water heaters!

5 Best Marey Tankless Water Heater Reviews

1. Marey Gas 10L Digital Panel Tankless Water Heater

Marey Gas 10L Digital Panel Tankless Water HeaterHaving a ready-to-use tankless water heater is a great relief when the weather outside is freezing cold. Unlike the traditional water heaters which take time to heat the water, this Marey Gas 10L tankless water heater is always ready to service you.

Either you want to wash dishes with warm-hot water or want to take a long warm bath in the Sunday afternoon, the Marey 10L water heater will provide you an endless supply of water at a steady water flow of 3.1 GPM (gallon per minute).

Moreover, this water heater has a digital display to show water and gas settings and two knobs to alter those settings.

Saving energy and cutting down monthly fuel cost is not that problematic with this gas water heater. It runs on both LP and natural gas and will reduce your monthly bills from 54% – 87% depending upon the water usage.

So, stop worrying about your rusting and wearing old water heater, get this Marey 10L heater and enjoy an endless supply of warm water at a steady pressure!

Pros & Cons


  • Saves 54% – 87% energy
  • No electricity required; it runs off LP and natural gas
  • Anti-rust material, no leakage guaranteed
  • 3.1 GPM water pressure
  • Auto-ignition works on low water pressure
  • Knobs for heat and water adjustment
  • Digital panel for display


  • Max water transport distance from heater to the point of use is 50ft.
  • Expensive when compared with others

2. Marey GA5PORT Portable Propane Gas Tankless Water Heater

Marey GA5PORT Portable Propane Gas Tankless Water HeaterMarey is known for the addition of innovative features in their water heaters. This Marey GA5PORT tankless water heater comes with a hand-shower, which makes it a go-to source of water.

Giving a bath to your pup in the lawn or cooking ramen in your outdoor camp, this portable Marey heater will do all. Camping in Alaska or snow-clad mountains means you’d get frozen water (obviously). And to turn the iced water into warm and cozy water, the GA5PORT tankless heater is the best you can get.

This Marey heater provides a water flow of 1.5 gallons per minute and allows you to set the temperature as per your preference.

This heater comes with a gas hose and a regulator so that you can conveniently connect it to a gas cylinder or pipeline. Once you get the GA5PORT tankless heater, no need to call a plumber, no need to worry about the weight when you carry it around, and absolutely no need to worry about the water flow. Phew!

You don’t have to wait for a change in water temperature as GA5PORT works quickly and securely. You can take a quick warm shower before heading out; without waiting for your heater to do the magic!

Pros & Cons


  • No electricity connection required
  • Energy-efficient; saves up to 87% energy
  • Easy to mount and operate
  • Easy-to-move knobs for gas and water level adjustment
  • Gas hose and regulator attached
  • Portable; work great during outdoor ventures


  • Works as a back-up, not a permanent solution
  • Customers have complained of sudden over-heating

3. Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater

Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water HeaterMarey GA10LP operates on propane and natural gas and keeps the gas consumption to a minimum level. No matter how much you use your Marey GA10LP, it won’t get overheated and won’t start draining the connected gas supply.

With this tankless gas heater, you’d get an unlimited water supply of 3.1 GPM. Additionally, this supply will remain steady even if there are multiple points of water usage. Kitchen, bathroom, or the lawn; Marey GA10LP will always keep the water warm.

This GA10LP heater is the best pick from my list of Marey tankless water heater reviews. If you aim to buy an affordable yet compatible heater, this heater is best suited for you.

Waiting and turning on multiple valves to ensure that the water you’re about is use is cozy is so 1990s. This smart and ergonomic Marey GA10LP has an auto-activation feature, which means waiting for the water temperature to rise is not a hurdle anymore.

This Marey tankless gas heater works great at low and unsteady water pressures. No worries if the water pipeline is giving you a tough time, you’d always get steady water flow through your Marey GA10LP heater.

Marey is always confident about the quality of their products and with this gas heater, you’d get five years warranty. This is the best option you can get in this price range.

Pros & Cons


  • Saves 60% energy
  • Compact and smart design
  • Works excellent even on low water pressure
  • Comes with five years warranty
  • Provides 3.1 gallons water per minute


  • Abrupt heating reported by some customers

4. Marey ECO150 220V/240V-14.6kW Tankless Water Heater with Smart Technology

Marey ECO150 220V240V-14.6kW Tankless Water Heater with Smart TechnologyManufacturing eco-friendly and convenient products is something Marey is well-known for. This Marey ECO150 is made up of corrosion-resistant material and saves space on your wall.

Apart from the small and compact design, Marey ECO150 has a smart LCD to show the gas and water levels when it is on. No need to wait while the water heats up; the ECO150 tankless heater would take minutes to do the job.

You’d get a good water flow of 2.5 gallons per minute along with the uninterrupted supply. Satisfying the customers and answering their probes is another point that makes Marey stand out from the rest. Similarly, this eco-friendly heater is arguably the most compatible one amongst my Marey tankless water heater reviews.

As installing this heater is pretty tough, you can call Marey helpline and ask for instructions and guidance at any hour.

The five years warranty which comes with ECO150 shows that you won’t face any trouble using it and even if a problem appears, you can get it repaired easily!

Pros & Cons


  • 2.5 GPM flow rate
  • LCD panel for unit display
  • Corrosion-resistant material
  • Five years warranty
  • Excellent customer support of Marey
  • Cost-effective and eco-friendly


  • Pretty hard installation

5. Marey Power Pak Plus Tankless Electric Water Heater

Marey Power Pak Plus Tankless Electric Water HeaterThese marey tankless water heater reviews aren’t confined to gas heaters only; you can get some awesome electric tankless heaters as well. Frankly, electric heaters were never this energy-efficient as this Marey Power Pak plus tankless heater is. This heater work on 220 volts electricity and consumes 60% less energy than the traditional water heaters.

Marey has made this electric tankless water heater compact and very lightweight so that installing and mounting isn’t problematic for you.

This heater is made from anti-rust material so that it doesn’t become weary and odd-looking with time.

When you have a large family with significant daily water usage, this water heater might not suit you well. Marey has not specified its water flow, and some people have complained that this heater doesn’t work well with multiple points of use.

If you need it for the kitchen or bathroom (one point usage), this would work amazingly well and cut your energy cost significantly!

Pros & Cons


  • Saves 60% energy
  • Operates on 220 volts electricity
  • Easy management
  • Anti-rust material
  • Compact and lightweight


  • Water flow not specified

6. Marey 5L Liquid Propane Gas Tankless Water Heater Review

Marey 5L Liquid Propane Gas Tankless Water HeaterThis is another Marey’s Water Heater which is quite similar in its outlook to the previous one. If you are in search of an easy-to-operate basic Water Heater that is super convenient to operate; this should be on your buying list. . Not only is it easy to use but it is easy on the pocket as well. 

The 5L Liquid Propane Gas Tankless Water Heater has can be easily installed at home without any additional help due to its simple design. 

With this tankless gas heater, you get a standard water flow of 1.3 GMP. It heats up immeasurable volumes of water as per your requirement, in just a couple of minutes. You get hot water instantly, as the system activates automatically when you open the tap. 

It does not require an electric connection rather uses 2D cell batteries. The heater is functional on the only 3V, which is great news for you if your area has a limited electricity connection.  It saves you those heavy electricity bills by using 60% less electricity as compared to other water heaters.

Additionally, the Marey 5L Water Heater also conserves gas as it uses up gas only when the water is flowing. The tankless heater works well with lower water pressure too. 

Keeping up with their customer service and loyalty, Marey offers a 5 year guarantee on this water heater as well.

Pros & Cons


  • Simple and Compact Design
  • Saves 60% more energy
  • Heats up unlimited water in an instance
  • Anti-combustion and gas safety protection
  • 87% lifetime efficiency level
  • With 5-year warranty


  • Not specified

Tankless Water Heater Buying Checklist

First-time buyers often think “all tankless water heaters are the same; it’s just the price that differs.” But frankly, the differences amongst different water heaters are more complex and diversified than the mere price tag.

How much water a tankless heater provides per minute? What kind of fuel does it consume? How much space do you need to install a water heater? These are some of the factors which differentiate one tankless water heater from the other.

If this is your first experience with tankless water heaters, fret not! By following this buying checklist which I’ve compiled for you, you’d undoubtedly end up with a good water heater.

  • Water flow

First and foremost, how much warm water would you get from a tankless heater per minute? If the water flow of a heater is less than 1 gallon per minute, don’t waste your money. The low-quality tankless water heaters which run on weary heating coils have a sluggish water heating capacity. And if you want to enjoy this new venture of going tankless thoroughly, opt for the heaters which have a GPM capacity of 2 or more.

  • Fuel

Marey tankless water heaters can be powered by electricity, natural gas, and propane. As electricity is expensive when we compare its cost with gas, you should prefer tankless gas heaters. But that doesn’t mean that electric tankless heaters would leave a hole in your pocket. They are still more efficient and smarter than old-school water heaters plus they are more economical. Either way, it’s a win-win situation for you.

  • Energy efficiency

As I said earlier, tankless water heaters are energy efficient. However, not all of them are the same. Some might consume even more energy than traditional water heaters. Luckily, that is not the case with Marey tankless water heaters. All Marey heaters are energy efficient and reduce fuel costs significantly. If the filter whose specs you are judging offers more than 50% energy efficiency, go for it.

  • Points of use

Unlike big water heaters, tankless heaters cannot support all aspects of water usage simultaneously. Some only support 1-2 points while others can cover 3-5 points. In this case, the decisions depend upon the number of your family members. If you have a large family where water consumption is high, you should scrape some additional budget and buy a high-end tankless water filter that can support multiple points at the same time.


Fossil fuels and water are the most precious gifts the mother earth has blessed us with. But sadly, we are exploiting these resources at a horribly high pace. The rapid fuel consumption not only damages the natural resources but also goes hard on our pockets.

The best way to stop this cycle is to replace energy-consuming gadgets with energy-efficient ones. And as we all know, 25% energy bills of most households go for water heating. Therefore, it’s high time we should get rid of the old water heaters and bring in the smart and efficient tankless water heaters.

I tried my best to answer all your probes related to tankless water heaters and conversed Marey tankless water heater reviews to equip you with a mandatory understanding of them. I am sure you must be very clear about the best tankless water heaters by now. Cheers!

Best Marey Tankless Heater Comparison Chart




Fuel Type

Water Flow /minute


24" x 14" x 7"

21 lbs


3.1 GPM


4.7" x 11.4" x 17"

13 lbs


1.5 GPM


6.9" x 13.6" x 23.6"

21 lbs


3.1 GPM

AbOVE $150

8.7" x 3.5" x 14.2"

10.1 lbs


2.5 GPM


5" x 12" x 11"

6.5 lbs



23”x 14” x 8”

5 lbs




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