10 Best Gas Water Heaters Reviewed & Tested

Without a water heater, some of you would have to shower with cold water which is downright uncomfortable. What is left is to invest in a water heater for your home, so you never have to deal with this inconvenience again. Strictly speaking, there are two common types of water heaters namely the electric and the gas-powered heaters. Solar powered heaters are less common. Since you are here reading this article, it can be assumed that you are at least considering the gas-powered option.

Our Top 3 Picks

Rheemimg
  • Rheem
  • 5 out of 5
    Our rating
  • Quiet
  • Price: See Here
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Takagi
  • Takagi
  • 4.6 out of 5
    Our rating
  • Durable
  • Price: See Here
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Rinnaiimg
  • Rinnai
  • 4.3 out of 5
    Our rating
  • Efficient
  • Price: See Here
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There is a number of options to choose from in this regard, but you must approach the selection process from an intellectual standpoint. You otherwise risk wasting a significant amount of money on something that does not suit your needs. The process involves coming up with a list of criteria you use to judge the products currently available in the market. Here are a few suggestions on what you should include in this list.

  • Cost/Price – Undoubtedly the first thing you will notice about a product on sale. There are heaters that you can afford quite comfortably, and then there are those that you will need to stretch your finances so you can acquire them. Try and budget beforehand on an amount you are comfortable spending and remain within the constraints of what is in your bank account. However, the quality usually has a direct correlation with the price. Remember the higher the price, the more likely you will be purchasing a high-quality device.
  • Construction – What is the heater made of both inside and on the outside shell. What materials were used to fashion the heating elements? If you can acquire this information go through it and be keen to note the details. As you probably know some materials last longer than others. The presence of anti-scale devices is also something you should be keen on. Some of you receive a water supply that is exceptionally high on the hardness factor. The scaling that is as a result of boiling such water could reduce your heater’s life expectancy. The anti-scale devices are therefore present to ensure this doesn’t happen.
  • Warranty – This is yet another element that will indicate how long the gas water heater should last. The longer the warranty is, the more resilient it is to wear and tear. Typically a gas heater will last for just over a decade. The warranty only ensures that you don’t need to spend any extra money if the heater breaks down during the first few years of use. If you can find one that lasts up to nine years, then you will be better off for it. However most warranties you will find cover a significantly shorter amount of time. The labor warranty is also something that you should look up beforehand.
  • Flow rate – A high flow rate is ideal especially when you need to use lots of hot water. If you have toddlers or young ones in the house, this is a no-brainer. Nonetheless, if you live alone, you could get away with a lower flow rate. Check how many gallons per minute the heater is capable of emitting.
  • Tank size – Another factor that is heavily dependent on your current circumstances. With a large family the bigger the tank, the Also, tankless heaters have been very efficient in the recent past. Some will even ensure hot water throughout the day if you so wish. Weigh your different options and see which one works best for your household.
  • Energy star/efficiency rating – These show the fuel economy of the heater you are about to buy. Without an energy rating, you are bound to spend more on your energy bill each This could be avoided if you check for the energy star certification before purchase. In some cases, you can save up to 30% of what you would use with a regular gas heater.
  • Reputation – You can consult a professional used to dealing with gas heaters on which one is best for you. Since they deal with a lot of these gadgets, some of the information they give could prove useful. An illustrative example would be which models in their experience last longer. If you have the time, you could scour the internet for reviews on some of the top models you can find. Past buyers tend to post their opinions under the products themselves. With any luck, you can find information to make a conclusive case for or against a certain

Once you have checked against all the items on that list, you will find that you have a much smaller list to choose from than what you had started with. The next step would be to weigh the pros and cons of these gadgets to make a final decision. Below is a list of 10 gas water heaters, their features, and their pros and cons. You will thus spend less time and effort looking for a device that is right for you.

10 Best Gas Water Heaters

 

1. Rheem RTGH-95DVLN

1. Rheem RTGH-95DVLN
The manufacturer claims that their products are tested both by the government and other parties to ensure quality. Add that to a rigorous manufacturing process, and you get a product worthy of being in first place. That is not all. The features list is also extensive therefore giving a lot of service to anyone who chooses to install this in their home. As this is an indoor heater, you can only get away with installing it on the inside your house where it receives shelter from weather elements. There are quite a few features of the gadget that deserve honorable mentions, but we will highlight two. Here they are:

94% energy efficiency – The gas bill will be as low as it can be once you attach this to your pipes. Even then you can entirely rely on this heater to provide you with hot water both on a frequent and regular basis. If you find that your needs for hot water are quite high, you can purchase two of these units and attach them using an EZ-link cable. They will in effect be working as a singular unit if you do this.

Remote control and digital display – You can use the remote to adjust the temperature settings and then check the digital display to see if it coincides. The device also features a self-diagnostic system that checks to see that everything is in working order. If not the digital display will indicate this in the process prompting you to take action.

As a matter of safety overheat protection is included as hot water can tend to raise temperatures quite a bit. When the gadget is not working, it has freeze protection of up to -30°F. You can, therefore, rely on it through all seasons including the winter.
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Product Features

Self-diagnostic system
Two-pipe direct vent system
30°F freeze protection
Digital Display
94% energy efficiency
Remote control
Overheat film wrap protection
Low Nitrogen Oxide
40 Gpm

Who is it for?

The pricing is moderately high. Once you get through installing it, you can bank on a return of investment in a couple of years. Most previous customers have found this tool a joy to use, and there is no doubt that you will too.

Pros

Simple to use

The display is visible even from a distance of 10ft

Very quiet in operation

Supports use of large amounts of water at a time

Saves on the gas bill

The water temperature remains consistent once you have set it up

Cons

The installation process is quite long and sometimes expensive

2. Takagi T-KJr2-IN-NG Indoor Tankless

2. Takagi T-KJr2-IN-NG Indoor Tankless
The Takagi unit in the second position is ideal for a small residential setup. A perfect situation would be in a small apartment. As far as our lineup goes, this is one of the smallest units you will encounter in the market. The energy factor rating for this tool ranges between 0.81 and 0.83. For a person living alone, there are a couple of features that are bound to catch your eye. They are as follows:

6.6 GPM – Not the highest number you will see out there. However, the manufacturer has explicitly stated the market this tool was built for. As such most people living in small apartment units will find the flow rate quite reasonable and sufficient for their needs.

Inlet and outlet thermistors – The temperature of the water needs a bit of consistency once you have put in your preferences. This consistency can only be maintained when there is constant temperature monitoring of the water going in and going out of the heater.

The thermistors serve this function, and you will subsequently find little in the way of temperature fluctuations in your water.

The warranty for this product covers up to ten years for the heat exchanger. Users will, however, have to settle for only a five-year parts warranty.
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Who is it for?

You pay about half the price that you would for the Rheem we mentioned earlier. This could be tremendously helpful if you don’t have that much money to spend. Also, your hot water usage needs to be a little lower than those of a large family.

Nonetheless, if the installation goes correctly, you will enjoy using this gadget for your hot water needs for a long time.
Pros

This unit is reasonably small and light

Easy to install

Quite durable

Provides hot water for long periods when turned on

Cons

The warranty for the product is void if anyone but a Takagi certified technician installs it for you

3. Rinnai RUC98iN Ultra Series

3. Rinnai RUC98iN Ultra Series
Coming in at third place this Rinnai gadget is a very capable gadget with some of the highest specifications you can find on any heater. This is a tankless option with a space design feature which should make it easier to install inside your house. The warranty is also pretty extensive covering 12 years for the heat exchanger. Other parts of the gadget are covered for five years and one-year labor coverage.

You can even decide to use this heater for commercial purposes. If you do, you will need to purchase an additional commercial controller. This will in effect raise the temperature range you are working with from 98°F – 140°F to 98°F - 185°F. Here are some of the better features of this product:

Up to 0.96 energy factor – This assures an unparalleled fuel usage efficiency whenever you start heating your water. You will thus experience a smaller gas bill as a result.

A BTU of 199,000 – The BTU being a unit of heat means the Rinnai exudes massive amounts to heat for your water. Once you turn the gadget on you won’t need to wait long to start using hot water. Also since the device is tankless, you are sure the hot water supply is uninterrupted as long as you need it.

The heater comes with the residential controller on delivery.
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Product Features

95% thermal efficiency
Temperature range of 98°F to 185°F
Ultra low NOx emissions
199,000 max BTU

Who is it for?

The Rinnai is an expensive gadget even priced at more than three times the Takagi in second place. However, it can be used both in large residential and commercial settings. You should, therefore, be satisfied with the overall service this tool gives you. Professional installation will set you back quite a large amount of money, but if you are willing to pay or even to install it yourself, then you are good to go.
Pros

Efficient fuel usage

Takes up little space

Easy and accurate temperature control

An endless supply of hot water

Cons

Unless you do it yourself installation by a professional can be quite expensive

4.Eccotemp i12-NG Tankless

4.Eccotemp i12-NG Tankless
Eccotemp comes in fourth place with a modern design in their gadget. However, this is not enough to make you want to buy it. As far as heat goes, it can produce a maximum of 80,000 BTU at a time. If you are interested in the lowest BTU figure, it stands at 25000. As per the manufacturer’s instructions, this tool is perfect for small residential establishments or even vacation cabins. It is relatively small both in size and capability, but it does do the job of heating your water on a regular basis. Here are some key selling points of the heater.

Child lock technology – Given that children like to tinker with everything you feel better having childproof gadgets in your house. Both your children and your heater will be safe due to the addition of this technology.

3 GPM – You have to remember that this heater is tankless and hence it will be heating water as you use it. This flow rate offers temperatures of between 35°-40°F. If you feel the need to go even higher to the 77°F figure, then you need to lower the GPM to 1.5. This might limit the number of people using hot water in your house at a time. Nevertheless, this shouldn’t be too much of an inconvenience.

The design mostly features black tempered glass on the front. Also, there is a touchscreen to help you navigate the controls easier. The display on the front will help you adjust and monitor the settings any time you put the heater to work. This is one of the easiest tools to install since it comes with standard water fittings.
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Product Features

Sleek modern design
Touchscreen
Display LED
Automatic temperature and GPM controls
Safe electronic ignition system
Child lock feature

Who is it for?

The price of this tool is strikingly low. It is therefore within most people’s budgets. Unless you plan on installing a few of these in your house, you should probably invest in another model if you have a large house and an even larger family.
Pros

The automatic temperature controls make it easier to use

Easy to view the temperature and flow rate settings through the screen

Easy to install

Uses a relatively low amount of electricity to stay on

Cons

The flow rate isn’t exactly impressive when compared with other devices; It will probably be suitable if only one of you is using the showers in the house at a time

5. Takagi T-KJr2-OS-NG Outdoor Tankless

5. Takagi T-KJr2-OS-NG Outdoor Tankless
Takagi makes it yet again onto our list with an outdoor version of their heaters. The heater uses a direct vent combustion system to keep the pollution and fumes as far away as possible from your house. Since it is permanently installed on the outside of your home, it comes equipped with internal freeze protection to cope with winter conditions while still providing you the hot water you need. Here are some of the Takagi’s top features.

0.82 energy factor – It is thus very efficient in its heating capability and its use of gas. You will save a lot of the utility costs while still being able to use hot water at will.

6.6GPM – This flow rate can’t exactly be described as a very high one. It can’t be described as low either. For a lot of households, this will be sufficient to cater to their needs. Nonetheless, these households need to be relatively small to use the heater up to its full potential.

The minimum BTU is 19500 while the maximum sits at 140,000. Both the Takagi gadgets on our list have very similar warranty terms. This model also includes a 12-year heat exchanger coverage and a 5-year warranty for the other parts. The labor coverage only goes for one year. If installed and used correctly you are looking at up to two decades of hot water usage. However, if you mistreat the gadget, it will probably not last as long.
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Product Features

19500-140000 BTU per hour
6.6 GPM maximum flow rate
0.82 energy factor
Includes internal freeze protection

Who is it for?

You can probably afford that price point. Get it, install it and enjoy having a continuous flow of hot water each time you turn it on. If you feel the flow rate decreasing it is probably time to clean the inflow and outlet of the heater. That should be just about it for maintenance.
Pros

Easy to install

Easy to use

Quality build

Inexpensive

Helps save on gas expenditure

Cons

The water flow is a bit limited

6. Rheem G100-200 Natural Gas

6. Rheem G100-200 Natural Gas
Our list hasn’t featured heaters that come with a tank as of yet so this is going to be the first one. As mentioned in the name of the device it is possible to use this heater in commercial establishments, and that is made possible by the 100-gallon tank it comes with. One of the features listed is the universal space saver design.

As compared to most other tankless designs this unit still takes up a lot of space. Some of the top features you have to contend with are:

Max BTU of 199,000 – This power will heat a lot of water at the same time, and thus the tool can service multiple outlets. Commercial establishments will be especially likely to use this gadget as they need to use hot water from different faucets at the same time.

Universal tank design – For your installation, this design will make it inherently easier to put your tank in place.

The fuel damper it comes with regulates the amounts of fuel you use to heat your water. When your bills are delivered to you, they will be less expensive than you would get with other products.
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Product Features

Universal tank design
Multi-fuel tank design
199,000 BTU output
Automatic fuel damper

Who is it for?

You will have to spend way more to make this purchase and for good reason. The tank heater is ideal for mansions and commercial establishments where the needs for hot water are constant and require the use of multiple faucets. If you use it in your business, the return on investment should come to you sooner rather than later.
Pros

Space saver design saves a little on the space you have to use to install it

Large water capacity in the tank

High efficiency in heating water

Can service many faucets at a time

Cons

Quite pricey

7. Takagi T-D2-IN-NG Indoor Tankless Heater

7. Takagi T-D2-IN-NG Indoor Tankless Heater
Coming in at seventh place is another Takagi model, and this one brings us back to tankless gadgets. Among the many claims the manufacturer makes is that this tool will show you just how durable their devices can be.

Seemingly no one seems to think this tool is average or even below average. Of course, you are entitled to your opinion if you are not all that pleased with the product, but the current situation seems to imply that you are just as likely to be impressed. Here are some top features:

199,000 BTU – As evidenced by this model even tankless heaters can reach this level of output. This will have all your water hot in absolutely no time at all.

Remote control – Once you have this in your house, it will make it easier to adjust settings to suit your needs at that time and should the need arise you can use the remote again to change them.

This device can deliver anywhere from 200 gallons to 500 gallons of hot water within an hour. Those are some pretty impressive numbers. The warranty terms are a notch below what you will find with the Takagi gadgets, but they are still reasonable.

Three-year warranty for parts. The most valuable part of the heater which is the heat exchanger is covered for five years and labor for only one.
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Product Features

Remote included
199,000 BTU
10 GPM flow rate
0.82 energy factor

Who is it for?

This tool is relatively expensive to both buy and install. If you do the installation personally, you can save a few thousand dollars although that will make the warranty void. Weigh the risk and the money you have, and you should conclude as to whether it is worth buying this product or not.

Pros

Energy efficiency

High flow rate

The heater is ideal for light commercial and large households

Cons

Some customers have issues with the way the product is packaged

8. Rheem RTGH-95XLN

8. Rheem RTGH-95XLN
As Rheem is an industry leader in the water heater market, it wouldn’t be right if there wasn’t more than one of their products. This tool is not just placed on our lineup due to the reputation of the manufacturer. Its spot here is well deserved once you have taken the time to use it, go through a couple of the features listed and even check out what other users have to say about it. The space-saving design is even more effective in this model as it is tankless and hence no need to get space for a tank.

The tool has also received an energy star rating, and thus your fuel consumption needs are well looked out for. Some noteworthy features of this gadget are listed below:

26GPM minimum flow rate – This is one of the higher numbers you will find for residential heaters. A 26GPM flow rate will allow you to have a couple of bathrooms in the house all of which can be used at the same time alongside kitchen applications.

0.94 energy factor – This is also a high rating with regards to fuel efficiency. The stainless steel condensing heat exchanger makes all this possible.

A few of the extras in the package include a digital remote control and thermostat wire. If for any reason you find one of these tools is not enough for your needs you can connect up to 20 of them to function as one. Of course for you to be able to do this, you need to purchase the optional MIC-180 plus the MICS-180 maniford control. Another great feature found in some Rheem products and found in this model as well is that it will work up 9,840 feet above sea level.
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Product Features

High altitude capability
26GPM minimum flow rate
0.94 energy factor rating
Digital remote control
Self-diagnostic system
Built-in electric blower
Space saving design
Overheat film wrap

Who is it for?

As you would expect this tool is expensive, but it is worth every penny you put into it. The heating capability and efficiency are just unparalleled, and hence you should get it right away if you feel it is right for you.
Pros

Easy to use

Better water flow and heat during winter

Efficient heating

Installation is straightforward

Cons

Some customers have complained that it takes a while to heat the water; the waiting time is however minimal sitting at below 1 minute

9. Rinnai V75IN 7.5 GPM Indoor

9. Rinnai V75IN 7.5 GPM Indoor
The V75IN by Rinnai is another quality tool that finds itself in ninth place. An area of focus with this tool is safety, and hence you will find some safety features that are designed to prevent damage and injury to both you and your family. The main two selling points that this tool has are as follows:

Temperature lock – If your children play around with the controls the temperature might change and make using the water impossible. While some people may prefer high-temperature water some will find it uncomfortable and hence the temperature lock helps prevent that from happening.

Leak detection – Water damage may be expensive to repair, but with this tool, you never have to worry about ever needing to.

Also, there is scale detection that prevents any significant damage to your unit.
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Product Features

0.82 energy factor
98°F to 140°F temperature range
Leak detection
Scale detection
Temperature lock

Who is it for?

At under $1000, there are quite some people who can afford to have this in their houses. The heating capabilities are good enough that you are likely to be impressed. It is recommended that you get a professional to install it for you since you risk damaging it if you go into the process without enough knowledge.
Pros

Very quiet in operation

Lowers your gas bill due to high fuel efficiency

Relatively easy to install for a DIYer

Cons

Can take up to one minute to heat up

10. HTP RGH-199 Effiency High

10. HTP RGH-199 Effiency High
In the last place, we have a reasonably efficient hybrid model by HTP. The device is available both for lp and natural gas. Here are two of the major selling points of the device:

Fire tube heat exchanger – When using the water from this heater you will never experience a burst of cold water, and this is made possible by this heat exchanger.

Leak detector – This safety feature is built in and detects gas that is out of place so it can shut itself down. Safety is a significant component of any tool, and it seems it was at the forefront of the manufacturer’s mind when they designed the RGH-199.

The hybrid is capable of providing hot water to multiple water outlets in your house and combines both the tank and tankless water heater features.
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Product Features

10 to 1 advanced modulating turndown ratio
Fire tube heat exchanger
Built-in leak detector
Available in natural gas and Lp

Who is it for?

This gadget is for anybody with money to spend and who is in need of a quality water heater. You can’t go wrong with buying this tool.
Pros

No spontaneous bursts of cold water as you would experience with other heaters

Built-in safety features

Cons

The tool is rather expensive

FAQs

How long do these take to warm up?

It depends on the heater. Some will take as little as 20 seconds while others can go up to 60 seconds. Most of these will be sufficiently heated up in under two minutes.

How long does it last?

Most gas water heaters will service your household for eight to twelve years. When well taken care of some heaters can last even up to 15 years.

When is it the right time to replace your heater?

If your heater starts making loud noises anytime you put it to work you should probably have it changed. Other symptoms that indicate the end of the heater’s life span are leaks, not heating water or a considerable reduction in flow rate. You can always check to see if it can be repaired before committing to buying a new one.

Conclusion

With the above list, you should be able to make a confident decision in whatever heater you are buying. Do share your experience with the above gadgets in the comments section below. We would love to get some of your input and also some other recommendations on heaters we should have included on our list.