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Best Tankless Water Heater (Reviews + Buying Guide) 2020

To get hot water for bathing in all session, tankless water heaters are the best solution for this problem. Tankless water heaters are quite popular in cold temperature areas and even in many other areas where it’s quite difficult to survive without hot water. There are many benefits of having tankless water heater than other water heaters. One of the biggest benefits is that it requires very less space in your bathroom (can be installed outside bathroom as well) and one can use it anywhere.

After researching for more than 180hrs, our research team and review experts has shortlisted some of the best tankless water heaters for you, which not only save your money, space but also help to improve the environment as it does not smoke and creates carbon. Check out our comparison table of top 10 best tankless water heaters where we have compared features of the different brand’s tankless water heaters.

Compare Top 10 Best Tankless Water Heater

Do check out comparison of different brand’s tankless water heaters, with features, price and user ratings.

EcoSmart ECO 276 GPMLifetime Warranty4.9/5
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Takagi T-KJr2-IN-NG6 GPM10 year heat exchanger and 5 year parts4.9/5
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Stiebel Eltron Tempra 24 Plus5.7 GPM3 year warranty4.9/5
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Rheem RTG-95XLN9.5 GPM3 year warranty4.8/5
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Takagi T-KJr2-IN-LP6.6 GPM10 year heat exchanger and 5 year parts4.8/5
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Rinnai RU98EP 9.8 GPM9.8 GPM12 year heat exchanger and 5 year parts4.7/5
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Eccotemp I12-LP3 GPM5 Years Replacement Warranty4.7/5
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BOSCH Tronic 30001.8 GPM5 year heat exchanger and 1 year parts4.7/5
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Westinghouse WGRTNG19911 GPM10 year heat exchanger and 5 year parts4.6/5
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Marey ECO 1103 GPM5 years warranty4.6/5
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These are the comparison, as you can see we have included many different brands of tankless water heaters.

Buying guide to choose Best Tankless Water Heater

There are many options available which does satisfy the basic task of tankless water heater. Earlier, there used to be big boiler which store the hot water and hot water is than supplied. But now the latest technology has just replaced the old water heaters, now the latest tankless water heater just have small heating element unit, which can be mounted on wall easily. Also, it saves lots of space (as no more big boiler is needed here). Just like you heat up food or water on gas stove, same way tankless water heater heat up water.

But while buying new water heater, you need to consider below mentioned some of the points which we have mentioned, do check out our buying guide for tankless water heater.

Gas or electric?

Gas heaters are cheaper in price while electric water heater does have high capacity. Electric water heater will cost you more and will also add more units in utility bill, while gas heater will save your lots of money which you was about to spend on electricity bill (though, you need to pay gas bill as well).

GPM requirement

How much water per minute you want? Its totally depends on your family size and the usage. Like if you just have shower usage, than 1 or 2 GPM (Gallon per minute) is quite enough.  For Bathroom sink 1 GPM, for dishwasher we require 2 GPM, for washing machine 1.5-3 GPM and for bathtub usage 5 GPM. Most of the water heater does provide minimum GPM of 3 in lowest temperature, which is good enough.

Heating system

Different water heater uses different technology to heat up. But we recommended you to go with the system which uses less power units, which is low NOx (nitrogen oxide) and gives quick hot water.

Specification and system

It depends on the size of your bathroom. If you are buying water heater which has outdoor instalment, than its not big issue. But if you are planning for indoor installation, in that case you need to have small and compact water heater which does not require more space and can be easily mounted on your bathroom wall (or where ever you are planning to use it).


Most of the gas water heater can be available in price around $500 while the electric water heater with more power can be available between price of $800-1000. You need to consider you option and not need to pay more than average price of the tankless water heater. We have included all high quality, best performing and low cost water heaters here.

These are the points you need to consider while buying new water heater. Apart from these, we also recommended to go with product which gives you lifetime warranty as well. As water heater might have leakages issues which need to be address as its getting used.

Now check out the detail review of the top 10 tankless water heaters of 2019. We have wrote detail review of each product with pros/cons, do checkout.

10 Best Tankless Water Heater Reviews

After hours of research, we have found some of the best water heaters (tankless) which are having low price, advance features, gives fast hot water and add very less units in your utility bills.

1. EcoSmart ECO 27 Electric Tankless Water Heater Review

EcoSmart ECO 27 Electric Tankless Water Heater
EcoSmart ECO 27 Electric Tankless Water Heater

This tankless water heater from ecosmart is our best choice and 1st in this list because of its powerful performance. This can give you uninterrupted hot water throughout, without any issue in cold temperature areas as well. If you are living in North America, you can expect hot waters in all session with this water heater. It’s quite ideal for the people who live in 37°F of low temperature as well. It can give you up to 6 gallons of water per minute and perfect for single shower setups.

It allows you to adjust the temperature, gives you advance controls which can be accessed via remote control. It helps you to save almost 50% of money on your utility bills, as ecosmart has used some advance heating system with this water heater. Like all other tankless water heaters, this one also saves lots of space, as it is designed like that which requires very minimum space. The size specification of this water heater is just 17″ x 17″ x3.75″ and have 14 pounds of weight. And using self modulating technology, it consumes very less energy as well.

The temperature adjustment is done via digital temperature control (can be accessed via remote as well), in 1 degree increments. This allows you to adjust the water heater temperature as per your need, and digital control allows you to have easy access to the control. It requires maximum Amperage of 112.5, 240 volts of power and 27kW of power it eats while generating hot waters. This water heater can be mounted on wall or one can create better support structure (in case want to put out of home), you can mount it anywhere in your home where you can attach electric supply.

Ecosmart has given three internal 9KW heaters with this water heater, can defiantly provide unlimited hot waters on demand. The parts of this water heater can be easily changed, though ecosmart gives lifetime warranty with this water heater which you can use it. Though, when using at cold temperature, the per minute gallon of water may differ slightly as mostly the machine will get super cold water (almost frozen) and the reason, do check out the US map wise water outflow of different temperature areas (eco smart  has attached it with product).

Overall, it’s a good product, priced under $500 price and in this price, you will hardly get any other good water heater with so many extra features. Take a look at this product before you buy any other tankless water heater.


  • Gives minimum 3 GPM of water at even coldest area of North America.
  • Affordable price.
  • Saves up to 50% money on water heating costs.
  • Requires very less space, and quite light weight.
  • Digital temperature control system allows you to control hot water temperature with help of remote control.
  • Copper and steel components, easily changeable.
  • Allows you to set water temperature between 80-140 °F.


  • Its bit low powerful but for more power, you need to spend more money.
  • Lifetime warranty is limited.
  • You require 40 amps of circuit for 240 volts of water heater.

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2. Takagi T-KJr2-IN-NG Indoor Tankless Water Heater Review

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater
Takagi T-KJr2-IN-NG Indoor Tankless Water Heater

If you are going to replace your old water heater with new powerful and extra advance features machine and price/budget is no issue for you, we recommended you to go with Takagi T-KJr2-IN-NG tankless water heater, as it has more power, can give you more flow of water per minute in short time, can be used in cold temperature areas easily. Though, it has not high price but for some it might be. It consumes less energy, space and allows you to use it maximum with more flexibility.

There are many other models also available in Takagi brands but upon our testing we found that this model has performed well, has more power, more BTU per hour and can be used in 2 bathroom easily. This water heater takes 140,000 of BTU per hour of input and provides you maximum water flow in cold temperature as well. On 70 °F of temperature it can provide up to 6 gallon of water per minute and minimum temperature of 35 °F, it gives minimum 3.3 Gallon per minute of hot water. If you have more family members to use, you can go with Takagi T-KJr2-IN-NG, it is good water heater.

It has good efficiency rate as well, yes Takagi T-KJr2-IN-NG has 0.82 of efficiency rate, which can be fall in mid-efficient products. This model of IN NG reduces the nitrogen oxide (as it is mentioned as low NOx model). It is environment friendly water heater. For the safety of the user, it has manual re-set hi limit feature, flame sensor, and freeze protection system as well. It comes with option remote control as well; you can opt for that as well. Though, it has easy temperature monitoring panel as well, which allows the user to control the temperature as per their needs.

It has size specification of 13.8 x 6.7 x 20.3 in and quite light weight as well. The parts used in this water heater are of category III stainless steel, easily available and can be replaced easily. For maintenance, Takagi has given 10 years of warranty on heat exchanger, and 5 years on the other parts. With good energy factor and reasonable price, this water heater is good option or those who are looking for cheap but powerful option. This is not the most powerful machine or water heater but one of the most efficient water heater with bit overprice.


  • Unlike Ecosmart 27, this water heater gives more GPM water in cold temperature as well.
  • It is extremely well liked product in US, people highly recommended to go with.
  • Light weight, require less space, compact machine, can be mounted on wall easily.
  • Saves your installation charge money as well.
  • Provides 140,000 BTU of input.
  • You can use it for two showers (bathroom) at one time without any issue.
  • Gives same performance in all session/climate.


  • Compare to Ecosmart 27, it is big overpriced.

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3. Stiebel Eltron Tempra 24 Plus Tankless House Water Heater Review

Stiebel Eltron Tempra 24 Plus Tankless House Water Heater
Stiebel Eltron Tempra 24 Plus Tankless House Water Heater

With over 149+ positive user ratings for this water heater, this is one of the most loved tankless water heaters in market. Stiebel Eltron tempra 24plus has high power, good temperature control system, saves money on electricity bill and saves lots of space as well. If you are looking for tankless water heater which can serve on more than 1 shower, Stiebel Eltron has good option for you. We have included this product after testing it with experts. We found that in low unit usage, this water heater has given maximum hot water.

It requires no experts to install it; one with non-technical knowledge can also install it easily. it requires 208/240 volts of power, with this much power it surely delivers high temperature water in low temperature climate as well. It surely saves 15-20% of the energy units and reduces your utility bill as well. It has 24KW of heating system support which defiantly fulfill your on demand hot water. The design of the water heater of Stiebel Eltron is quite compact, requires very less space and can give maximum usage. It has size specification of 16.5 X 4.5 X 14.5.  The tempra of this model is quite cheap compared to other gas tankless water heater models.

The Stiebel Eltron has used digital temperature control system, you can adjust the temperature as per your need, without much issue and can with help of just simple button press. You can also adjust the water flow and peak water temp with help of digital multi-function dial. You can replace your expensive hot water tanks with this compact water heater in your home and save lots of money. Stiebel Eltron has promised to provide hot water in low temperature areas as well.

As mentioned above, the installation process of this water heater is quite simple; one can easily install it within minutes without much issue. One can use the hot water for other use as well (i.e washing clothes) as there is lots of hot water going to flow in one time usage. It provides 3 GPM of water flow in 35 °F of temperature and other than that it specified to give 5.7 GPM of water flow. The manufacturer has given 3 years warranty on body parts and 7 years on any leakages issue.

Overall, its a good product but compare to the above two, it has little more price which could be avoided. With almost same price, you get Ecosmart 27 or Takagi T-KJr2-IN-NG.


  • Easy installation process, non-professional people can also install it easily.
  • Get unlimited hot water without much issue as it has high GPM of ration.
  • You can get plenty of GPM rate in cold temperature climate as well.


  • Low warranty coverage.
  • Low gallon per minute rate for moderate temperature areas (should be 6+).
  • You need to install separate circuit to use 240 voltage of electric supply.
Note: – All the three models (Ecosmart 27, Takagi T-KJr2-IN-NG and Stiebel Eltron Tempra 24 ) has same features, performance and same specification as well. It was very difficult for us to rank them in 1 to 3. Though, all three have different price but performance wise, almost all 3 have same capacity.

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4. Rheem RTG-95XLN 9.5 GPM Outdoor Tankless Low Nox Water Heater Review

Rheem RTG-95XLN 9.5 GPM Outdoor Tankless Low Nox Water Heater
Rheem RTG-95XLN 9.5 GPM Outdoor Tankless Low Nox Water Heater

If you are looking for high capacity tankless water heater with good gallon per minute and with good power, here is Rheem’s water heater. This is one of the most powerful water heaters in our research that has provided 9.5 GPM of hot water at lowest temperature possible. Also, if you have more people in family or want to use it for the commercial purpose (for motel or hostel), you can look at this option, as it has good specification features. Though, for such high performance machine, you have to pay little more prices.

It has impressive BTU input capacity of 11,000-199000 per hour and due to high input power, it can give you 9.5 GPM of hot water in 35 °F of temperature. If you are living in north America and want such high capacity water heater, go for this one, it surely won’t disappoint you.  Rheem has given a multifunction remote control with this water heater which allows you to control the temperature most easiest way. This one from Rheem is low NOx model, which means it produces very low nitrogen oxide and makes the environment less damaged.

It uses very less units and surely will save your electricity bill as well, and the design of this water heater is quite compact, you don’t require having huge space to store this product. The size specification of this water heater is 14 x 10 x 26 inches, can easily be mounted on walls.  Company recommended you to install it on outdoor but you can adjust it as per your requirements. In this water heater, they have used Next Generation Burner Technology which is most advance heating technology. It has good (0.82) of energy factor rate. In case of breakdown, it has self-diagnostic system which can find the issue in minutes.

With digital display and EZ link cable for connectivity, one can easily operate and install it. Overall, its a good water heater with maximum capacity just that it is priced nearly $1000 but compared to the features it provides, it is very reasonable. It is hard to survive without hot water in some areas, where this machine can helpful for the livelihood of the people. It has in-built freeze protection system which saves you from any fire, its a good security system for the user.


  • 10ft of EZ link cable, digital display.
  • Self-diagnostic system, and hot start programming allows you to use it for long time.
  • Digital remote control for temperature control.
  • Gives best GPM of hot water in low temperature areas as well, best in industry.


  • Bit costly price.
  • Amazon site provides 10 years of warranty but company not reflecting on customer service.

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5. Takagi T-KJr2-IN-LP Indoor Tankless Water Heater Review

Takagi T-KJr2-IN-LP Indoor Tankless Water Heater
Takagi T-KJr2-IN-LP Indoor Tankless Water Heater

Another great performing water heater from Takagi, takagi T-KJr2-IN-LP is almost same like Takagi T-KJr2-IN-NG which had almost same specification and feature. But the, Takagi T-KJr2-IN-LP has 1,40,000 BTU input (which is lesser than IN-LP model). Though, both model provides similar flow rate and almost priced same. But if you are ok with little low performing water heater (or you are not living in much colder area), and want to save few bucks, you can try Takagi T-KJr2-IN-LP now. It is one of the most positive rated water heaters on amazon with 78 positive user ratings.

The design of this water heater is quite compact, its quite efficient and discreet water heater machine with capacity to empower many showers at the same time. If you are looking for water heater which can be used with 2-3 showers, this can be good option. Takagi T-KJr2-IN-LP has 140k of BTU input, and can provide maximum of 6.6 gallons per minute (GPM) of water flow. With this much water flows, its good enough for to use same hot water in multiple bathrooms. Also, the company takagi recommended using this water heater in small apartments or home, not for bigger home/house.

This takagi water heater uses 120 volts of power, such a power water heater that will fulfill the on-demand of hot water easily. It works well, has good performance in almost all kind of climate, it provides instant hot water. It’s a point use water heater, has limited capacity but surely has big capacity.  In cold temperature of 37 F, the GPM will be around 3.2 of water flow, but still that is good enough to empower your shower. The installation of this water heater is quite easy, one can easily install it in indoor without much issue.

It has quite affordable price, easy adjustable settings for temperature settings, quite compact design (size specification of 13.8 x 6.7 x 20.3 in), doesn’t require much area. Though, not allowed to use it for large homes is big drawback and also with more demand of hot water, the flow of the water reduces (that what we observed).


  • Low and reasonable price,
  • Temperature adjustment can be done easily.
  • Water flow speed increase/decrease can be done easily.
  • Compact design can be installed anywhere.


  • Not good for big homes or more people to use.
  • More demand, less flow.

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6. Rinnai RU98EP 9.8 GPM Tankless Propane Water Heater Review

Rinnai RU98EP 9.8 GPM Tankless Propane Water Heater
Rinnai RU98EP 9.8 GPM Tankless Propane Water Heater

If you are looking for the most advance technology water heater with more power, more gallons per minute of water flow and have no budget issue, you can try Rinnai RU98EP 9.8 GPM Tankless water heater. It is outdoor unit, have high energy factor, energy star certificate, eco friendly and has got good user ratings as well. On our testing/reviewing, we have found that Rinnai RU98EP water heater has stainless steel body and used latest technology to heat up water, which assure that this product will work for longer, without much issue. Though, it is bit over priced product but for using advance technology you have to pay high price.

This water heater from Rinnai has 199,000 BTU of input capacity, which can defiantly give good flow of water to you. You can use this water heater for home, hostel, hotel or any commercial purpose. With such high BTU input, it gives 9.8 gallons per minute of water flow. Such high water flow can be used for more than one shower easily and can be used for other commercial purpose as well. It also provides you frost protection, peak boiling protection and combustion propeller check kind of safety features.

Rinnai RU98EP has got 0.93 of energy factor rating, which means it’s quite energy efficient will save your lots of money as well. Just to add more on this, this water heater has got energy star certificate as well, which is proof that it uses very less units. The Ultra NOx protocol followed by this product will reduce the nitrogen oxide and also reduce the pollution level as well. It is quite eco friendly product with latest technology used.

Rinnai has used Advance scale detection technology which increases the durability and longevity of the product. Also, its get auto switches off when any short circuiting issue happens, such things quite possible with tankless water heaters. Also, using Rinnai Circ-Logic Recirculation (RCL), one gets programmed on-off sequence and it works automatically for the users, it saves your time and gives you better operational cycle.


  • Super advance technology used to heat waters.
  • 199,000 of BTU input and 9.8 gallons per minute of water flow.
  • Ultra NOx reduces pollution level.
  • Rinnai Circ-Logic Recirculation gives automatic programmed operation.
  • 12 year warranty on heat exchanger, 5 years on parts and 1 year of free labour.


  • Price is costly.
  • You need professionals to install the machine.

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7. Eccotemp I12-LP Indoor Tankless Water Heater Review

Eccotemp I12-LP Indoor Tankless Water Heater
Eccotemp I12-LP Indoor Tankless Water Heater

Looking for cheap, advance and touch screen like features in tankless water heater, here is Eccotemp I12-LP. This water heater has most advance design, in fact, if you are looking for most stylist and sleek designed water heater; this is best option for you. it has black acrylic glass casing in the front, which adds extra look in the design of Eccotemp I12-LP. While other water heaters uses stainless steel body, this manufacture comes with unique design and goes for glass front. Apart from that, it has good performance and very low price as well.

Yes, it has touchscreen access which allows you to temperature control, GPM control and provides you other information as well. With LCD screen, user can see the water flow rate, current temperature of water. It has good safety features as well, safety features like child locking system (since it is having touchscreen), it is quite useful. This water heater is having low capacity of water flow, so it is only good for the family which having 2 members or having very low usage. it gives 3 Gallons per minute of water flow, which can only supply water to single shower. If you are planning for more than one bathroom, you need to change your option.

This is indoor water heater, can be easily installed in bathroom with no professional help and this unit is liquid Propane fired, easy to workout. It has 120 volts of power, can be worked with normal circuit plugin as well. It has horizontal stainless steel vent, ready to install, you don’t need to do much with the fitting. Even if you are planning to install it in vacation cabins, small home or for cottages, it works well everywhere. Apart from the functioning, it has very small compact designs, which can fits everywhere. The size specification is 15 x 24 x 4 inches and only 29 pounds of weight. Its super light weight product, compact as well, and not to mention super stylist as well.

Overall, if you are having low usage and looking for cheap tankless water heater with under price of $399, you can try Eccotemp I12-LP.


  • Super nice, compact and sleek design.
  • Touch screen, LCD screen display.
  • Black acrylic glass casing.
  • Very reasonable affordable price.


  • Low water flow capacity.
  • Low voltage.
  • Only good for 2 people use with single shower.

Check Price on Amazon

8. Bosch Electric Tankless Water Heater Review

Bosch Electric Tankless Water Heater
Bosch Electric Tankless Water Heater

First of all, its not for shower or for other big usage, if you are looking for small wash basin or kitchen sink type of usage and want water heater for just small usage, you can go with Bosch Tronic 3000. It has low price, quite affordable. It is having low voltage supply, quite compact and also available in other small voltage options as well. Bosch is good brand, has very good review of this product, for small usage category, this product is best seller.

The Bosch Tronic 3000 is available in 12 kW, 9.5 kW, 7.2kW, 3.2 kW option as well. Its good option for half bathroom and powder rooms, or laundry rooms where you need few gallons of water for washing clothes or basement wet bars, or for Kitchenettes where you can wash.  Other ways to install this small water heater at garage, pool houses, patio sinks and many other ways where you have very small use, this can be good option for those people who have very low usage.

The size specification of this product is quite compact, it is just 6.5″ x 12.25″ x 3″ in size.  It has low Gallons per minute output, just of 1.1 GPM rate at 75 degrees F. With this rate, this water heater is not good for north America but can serve purpose for south Americans who want hot water in winter, or for the hotel owners who want to serve hot waters to the customers on some places. But at 45 degrees F of temperature, it will provide you water at 1.8 GPM rates, which is good enough.

This one is quite reliable and long durable product, as Bosch provides 5 years of warranty on heating elements and 1 year of warranty on other components. It priced very less, you can find it at the price of $199 or less even.


  • Small and compact size.
  • Energy efficient product saves lots of money.
  • Available in 4 different kW options.
  • Affordable price.


  • Low capacity, only good for small use.
  • Can’t use it for shower or bathroom.

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9. Westinghouse WGRTNG199 199K BTU Natural Gas High-Efficiency Tankless Water Heater Review

Westinghouse WGRTNG199 199K BTU Natural Gas High-Efficiency Tankless Water Heater
Westinghouse WGRTNG199 199K BTU Natural Gas High-Efficiency Tankless Water Heater

Westinghouse WGRTNG199 is known for its super high performance, but due to ordinary design, many people use to avoid it. Also, Westinghouse ships the product very late and not good customer service as well. Though, this machine has 199,000 of BTU power, and can provide 10 gallons per minute in 35 degree F of temperature as well, which is quite impressive. Apart from that, products of Westinghouse are long durable and have good warranty coverage as well, but due to over price and poor customer service, many people avoid using Westinghouse products.

This water heater is 96% energy efficient, has 98 energy factors which approves the proof. Also, it has been certified with energy star as well. As mentioned above, it has 199,000 of BTU power which generates quick hot water for you and can provide up to 11 GPM (gallons per minute) of water flow in cold weather of 35 degree F. Yes, it is quite high performing product; you hardly get such GPM rate with any other tankless water heater. Westinghouse has used super high quality of stainless steel heat exchanger, which approves its longevity and durability. It has self- diagnosing intelligent control which solves small technical issues easily and gives you uninterrupted hot water.

The recirculation pump has 3 modes, pulse, smart and time sequenced gives you water as per your need. It has in-built dual stage antifreezing mechanism, gas leak detector which is good safety feature. Also, it is designed as per the Switched-mode power supply (SMPS) mode. You can easily adjust the temperature at 1 degree increment and one can check the current temperature on the screen as well. It has flow sensor, flow control system and heat control system.

Westinghouse gives 12 years of limited home warranty and 5 years on commercial warranty on parts. And has 0.98 of energy factor. This water heater works on natural gas and has high energy efficiency. With so many features, the price of this water heater is also bit high, which is why many people avoid it. But if you don’t have any price issue, you can go with this product; it has good performance and can give you best water flow in 35 degree F of temperature.


  • High energy efficiency.
  • 11 GPM water flow, highest in category.
  • 199k of BTU input.
  • 3 re-circulation pump mode.


  • Costly product.
  • Poor customer service.

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10. Marey ECO 110 Electric Tankless Water Heater Review

Marey ECO 110 Electric Tankless Water Heater
Marey ECO 110 Electric Tankless Water Heater

This is our last entry in tankless water heater, from marey. Marey ECO 110 is our last entry in top 10 tankless water heater, which has good and simple design, it has quite simple operation, one without reading user manual can also easily operate it. It is small and compact water heater without tank. It is light weight and indoor water heater with some good features. If you are looking for cheap option for limited use, Marey Eco 110 can be good option for you.

This water heater has 3 x 8.6 x 14.8 inches of size specification and has just 7 pounds of weight. You can easily carry, can mount on wall or can install it anywhere. It uses 240 volts of power and generates 3 GPM of water flow. 3 GPM of water flow is good for single shower; it will be too much to ask from this water heater for two water shower. Due to its low price, its quite popular but it hardly satisfy your purpose if you have more than 2 people in family. You can also regulate the temperature with easy press and it requires very little pressure of water. You can also use it for low pressure water in home.

Though, this water heater is only good for small house or for cottage only since it has very low GPM water flow rate. It has small LCD screen where you can see the current temperature and flow rate. Also, from the screen, you can increase the temperature or decrease it. It is long durable product with strong body and good operation. Marey gives 5 years of warranty with this product, which covers entire product. If you are looking for long durable water heater in budget of $199, Marey Eco 110 is good option for you. We have shortlisted it after good testing done. It is good for small house; we do not recommended it for big house, hotel or commercial use.


  • Low affordable price.
  • Good light weight and sleek design.


  • Low GPM water flow rate.
  • Low performance.
  • Not good for big house or for other commercial purpose.

Check Price on Amazon


We have included all kind of tankless water heater, from high capacity to low capacity, from 11 GPM rate of water flow rate heater to 1.8 GPM water flow rate of heater. From $199 to $1300, we have tried to include all kind of customer’s requirement and for that we have done deep research which can satisfy the demand of all users. We have included different brands which can give you best water heater in tankless category. If you are still confused, you check out buying guide which will help you to decide the best tankless water heater in 2019.

Our research process was quite in-depth, we have taken care of things like user ratings, price, performance, features, specification, durability, buying guide points and many more. It was quite scientific research method which includes the personal review of experts who are having good experience in this field. We believe that if customer is spending $500 or more prices on one product, we must give them the best value of their money with best review possible. We have followed it for other reviews as well, which you can check on our home page.

If you have high usage and more people to use water heater in your family, we recommended you to go with water heater which has high GPM flow rate, as it will satisfy the water on demand needs of your family people. Temperature is having key role in deciding the water heater as if you are living in north America area where mostly low temperature is going through all the year, you need to have water heater which works well, gives same flow of water in cold temperature as well. We have included some water heater like EcoSmart Eco 27 or Takagi T-KJr2-IN-NG which has good GPM rate in low temperature as well with low price tag, we highly recommended to go with it.

If you are looking for small usage on wash basin or kitchen sink or any other place like garage or somewhere else, we recommend you go with BOSCH Tronic 3000, it’s a good option for small usage, has quite compact design as well, do take a look. For all other purpose, we have water heaters from brands like eccotemp, rinnai, Rheem, Stiebel Eltron etc. Just go with our review and do let us know how it benefited you in choosing best one, via comment box.

These are the reviews of tankless water heaters, Top 10 and best for every kind of climate in USA. For more reviews on the different products, keep visiting 10bestreviewed.com.

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