So, are you looking for the best natural gas tankless water heater for the money?
Well, in this post, I would be walking you through some of the best gas tankless water heaters available on the market.
Moreover, I would also be throwing light on “must-have” parameters in the buyer’s guide section to help you make an informed buying decision.
Lastly, I would be responding to the queries related to the natural gas tankless water heaters review in the “FAQs” section in order to help you clear your doubts.
But before that, I would be needing a small help from your end.
Would you be interested in helping me?
If I’m lucky and your answer is “Yes”, then all you need to do is to respond to a couple of questions that I would be asking you in a while.
Does it make sense?
So, which is your favorite gas tankless water heater brand?
How much are you willing to spend on your favorite gas tankless water heater?
How often do you prefer reading product reviews?
Enough of questions, right?
So, without any further ado, let’s begin…
Which is the best natural gas tankless water heater for the money?
Frankly speaking, all the products that made to our list are of high-quality and worth your investment.
However, if you’re interested in knowing my “top 3” pick then I would be more than happy to share it with you.
Top 10 Best Natural Gas Tankless Water Heaters Review
Well, before we dive deep into the discussion, please allow us to explain to you the methodology that we use for shortlisting the top ten products.
First and foremost, our team of experts comes up with the set of parameters on which we need to evaluate the products.
Secondly, each of these parameters is assigned a certain weightage as per its ability to influence the buying decision.
During the evaluation process, each of the products gets a certain score across the parameters depending upon its performance.
Finally, we sum up the score, and shortlist the top 10 products for review, in this case, it is a gas tankless water heater.
In case, you still have any doubts or query then feel free to contact us as we would be more than happy to assist you.
Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater
The Rinnai RUC98iN is one of the best gas tankless water heaters that I’ve come across in my professional career so far.
Moreover, the brand Rinnai doesn’t needs any introduction and has proved its mettle time and again without fail.
Well, if you’re looking for gas tankless for your entire family with a constant need for hot water then definitely, Rinnai RUC98iN could be a great fit.
The unit uses natural gas as fuel for heating the water which is more energy-efficient as compared to the electric tankless water heater.
Furthermore, the natural gas tankless heater uses advanced and innovative technology which makes it more environmentally friendly as compared to its electric counterpart.
Since the unit uses natural gas as fuel so you can expect it to be extremely quick at heating and distributing water to the household.
I wouldn’t deny the fact that the unit comes with a huge upfront cost as compared to an electric tankless heater.
Not only that but also the installation cost is huge and the installation process might become tedious and time-consuming as well.
But, irrespective of all that, the unit is worth the investment, and would definitely, pay you a good return in the long run.
However, if you’ve got a small family or you’re on a shoestring budget, then RUC98iN might not be the perfect choice for you.
Well, the unit is capable of 9.8 gallons per minute output which is sufficient for the simultaneous use of baths, showers, sinks, and faucets for small to large families.
The innovative heating technology used by the RUC98iN allows it to heat extremely fast in the range of 98 degrees F to 140 degrees F.
On top of it, the unit is small, compact, and can fit in a tiny space because of its sleek design.
As compared to a tank heater, the Rinnai tankless water heater will definitely take less space.
Not only does the Rinnai tankless heater comes with an energy star rating but is also backed by a residential warranty of 12 years on the heat exchanger and 5 years on parts.
On the downside, the unit is extremely expensive and might not be the perfect fit for small families.
Eccotemp i12-NG Tankless Water Heater
The Eccotemp i12-NG uses natural gas as a fuel and is one of the best gas tankless water heaters in the “value for money” category.
Moreover, the unit is reliable, powerful, and uniquely designed to cater to the needs of the end-users in an effective way.
Not only does the unit uses black tampered glass on its front panel but also, comes with LED display controls that make setting temperature easier and gives the end-user better control over the device.
The heater is not only equipped with child lock technology but also comes with automatic temperature controls with an energy-saving mode to help users with the best possible usability as well as user experience.
I highly recommend the Eccotemp i12-NG for vacation cabins, small homes, and cottages.
If you’re operating the unit at 3 GPM then you can expect it to offer a 35-40 degree Fahrenheit temperature rise.
On the other hand, if you’re operating the unit at 1.5 GPM, then you can expect it to offer a 77-degree Fahrenheit temperature rise.
With a 79% energy factor and hot water capacity in the 0.6 – 4.8 GPM range, the unit is bound to deliver high performance with ease.
And, the gas rate falls in the range of 25,000 – 80,000 BTUs.
On the downside, installation is tedious and time-consuming, and if you’re a first-time buyer then you’ll require professional help.
GASLAND Outdoor Portable Gas Water Heater
The GASLAND water heaters are extremely compact, portable, and lightweight meant to cater to the needs of small homes and offices.
In spite of being smaller in size, the unit doesn’t compromise on its performance and can cater successfully to the needs of small as well as big homes.
Because of its portable characteristic, it can be easily installed in tiny spaces including the lobby, hallway, kitchen, and bathroom.
The installation is smooth and hassle-free and can be done in an epigrammatic span of time as the unit is equipped with smart mounting brackets.
The Gasland comes with safety features including anti-freeze protection to help you deal with unprecedented situations in an effective and successful way.
Whether you’re a resident of a colder or a hotter climate, the Gasland heater would serve the purpose without fail.
In order to deal effectively with the overheating problem, the unit is equipped with an overheating protection feature that will stop the heating process once the water pressure extends to 110 PSI.
With the maximum power output at 41,000 BTU/hour, and no need to preheat, the unit is bound to deliver high-performance and endless hot water without any hassle.
Just to mention, the brand does have excellent customer support service in order to help you clear your doubts and queries effortlessly.
On the downside, some of my clients have faced issues with the user manual and the packaging.
Rinnai V65IN Tankless Water Heater
The Rinnai tankless water heaters comprise ThermaCirc360 technology that helps you to get hot water instantly by recirculating it through the pipes.
Moreover, the compact and sleek design helps you to install the unit even in the non-traditional and tiny spaces including the attic, crawl space, or even a closet.
Since you heat the water only when you need it so standby heat loss is almost negligible, and the manufacturer claims to use 40% less energy than the traditional heater.
The brand Rinnai doesn’t need any introduction and is one of the most trusted gas tankless water heater brands.
It also comprises advanced technology including Wi-Fi monitoring to help you not only achieve an optimum result but also, address the issues before they become a hurdle in the path of uninterrupted service.
As compared to the traditional heater, the average life expectancy of the Rinnai tankless gas water heater is almost twice (20 yrs).
With an energy factor of 0.82 and a maximum gas rate of 150,000 BTUs, the natural gas tankless water heater is bound to deliver high-performance with ease.
On the downside, some of my clients have faced some issues with the customer support service.
Lastly, the unit is backed by 10 years warranty on the heat exchanger and 5 years on parts that show the trust and confidence of the manufacturer in its offering.
Rinnai RUCS75iN Tankless Water Heaters
So, here I’m with yet another offering from the brand Rinnai.
The Rinnai RUCS75iN provides you endless hot water, takes up less space, and is cost-effective, of course in the long run.
It uses natural gas as a fuel and is highly energy efficient.
Unlike electric tankless water, it heats the water very fast, and so you don’t have to wait longer to avail of it.
On top of it, the hot water flow rate can go up to 7.5 GPM, again, it depends on the groundwater temperature.
With the help of control-R 2.0 mobile app features, you can easily schedule the timer remotely as per your requirement, and can also put the unit into vacation mode without being physically present at the venue.
On the downside, installation can be a pain in your butt if things aren’t done properly under the guidance of a professional.
You need to install both the condensing vent and the drain.
In case, you want to recirculate water in order to decrease the wait time for hot water, then you’ll have to buy a separate valve for this purpose.
Moreover, you would be needing 3/4 inch gas line for this unit.
Lastly, the Rinnai RUCS75iN is backed by 10 years warranty on the heat exchanger and 5 years on parts.
Rinnai RU199iN Tankless Water Heaters
The Rinnai tankless water heaters are definitely among the best in the market.
Moreover, the Rinnai RU199iN provides endless hot water for your entire home without any hassle and uses natural gas as fuel.
The unit is only for indoor installation purposes, so if you’re looking for a hot water heater for outdoor installation, then Rinnai RU199iN might not be the one for you.
Well, the unit comprises advanced technology including Circ-Logic that allows you to set recirculation patterns that coincide with your typical habits.
Like other Rinnai tankless models, the RU199iN also has a compact and sleek design so that you can install it in tiny spaces including an attic, crawl space, or even a closet.
A Rinnai Tankless Water Heater uses 40 percent less energy than a traditional tank because you only heat water when you need it and so there isn’t any loss of heat to the environment.
The average life expectancy of a Rinnai Tankless Water Heater is approximately 20 years which is almost twice that of a traditional water heater.
Similar to other Rinnai tankless units, it is also vertically integrated.
Not only the isolation valves are included with the RU199iN but also, the unit is energy star certified.
The flow rate of the unit is up to 9.8 gallons per minute.
Not only is the unit Wi-Fi enabled but also possesses a uniform energy efficiency in the range of 0.91 – 0.93.
Lastly, the unit is backed by 10 years warranty on the heat exchanger and 5 years on parts.
American Standard TCWH180S-AS-NG Tankless Natural Gas Water Heater
The American Standard TCWH180S-AS-NG is capable of producing 11 gallons of hot water per minute and deploys the latest cutting-edge technology in order to help you achieve an optimum result.
Furthermore, these tankless condensing units boast an impressive energy factor of 96 drastically reducing energy costs when compared to a conventional storage tank water heater.
The ability of the unit to provide instantaneous hot water negates the problem of standby heat loss.
On top of it, the unit comprises a series of sensors in order to give end-users the best possible user experience.
It also comprises of overheating cut-off system in order to deal with the overheating issue in an effective way.
For tracking the gas leakage, the unit is equipped with a gas leak detector sensor.
Flame sensor, water temperature sensor, high-temperature exhaust sensor are some of the other sensors that will help you in achieving optimum results by narrowing down the scope of error.
Not only does the unit comes with an ultra-low NOx combustion system but also, it is energy star & ETL certified.
Lastly, the TCWH180S-AS-NG not only comes with an easy installation but also, a 12 years limited warranty on the heat exchanger and 5 years on parts.
Noritz NCC300DVNG Commercial Condensing Tankless Water Heater
The Noritz NCC300DVNG is a commercial condensing direct vent tankless water heater that is equipped with almost all the essential features that you might be looking for in your favorite tankless heater.
And, the unit uses natural gas as a fuel.
It is a small, compact, and sleek design so that you can install it even in a tiny space without any hassle.
Moreover, the unit boasts about its flow rate of up to 13.2 GPM as well as its energy efficiency.
The NORITZ NCC300 has a comparatively easier installation process, and the IK-WV-300-1-XX-LF valve kit is required for the installation which you need to buy separately.
Well, the NCC300 is Wi-Fi compatible and can be vented using CPVC, PP, or Schedule 40 PVC.
Moreover, the unit is highly flexible in terms of linking as it allows you to link up to 24 units with the appropriate system controller.
The primary exchanger is made up of K-copper which is almost 25% thicker than the competitive models as claimed by the manufacturer.
Lastly, the NCC300 is backed by 5 years warranty on both heat exchangers as well as parts.
Noritz NRC66DVNG Tankless Natural Gas Hot Water Heater
Well, the Noritz is a mid-range natural gas tankless water heater that is equipped with idiosyncratic superlative features which makes it stand out from the crowd for sure.
The unit comprises a compact and sleek design that makes it possible to get installed in a tiny space.
And, the best part is, the installation process is comparatively easy and hassle-free.
The Noritz NRC66DVNG uses natural gas as fuel and could be a great fit for two-bathroom homes and apartments.
Moreover, the unit is meant to provide you with endless hot water, with a maximum water output of 6.6 gallons per minute.
I’m pretty well satisfied with the size of the unit as it allows me to have at least two simultaneous showers, or even one washing machine and one shower at the same time.
Since the unit is energy star certified so you don’t have to worry at all about its energy efficiency feature.
It uses schedule 40 PVC pipe and fittings for venting which is readily accessible and easy to install.
Lastly, the unit is backed by a 12-year heat exchanger and 5-year parts warranty which shows the trust and confidence of the manufacturer in its offering.
Camplux CA528 Indoor Natural Gas Water Heater
The Camplux CA528 is a residential tankless water heater equipped with almost all the essential features in order to help you achieve an optimum result.
Moreover, the unit comprises fully automatic temperature control and possesses a thermal efficiency of up to 92 percent.
It comprises a series of protection features including a safe electronic ignition system, anti-freezing protection, flame failure device, and dry combustion protection to help you deal successfully with unprecedented situations.
On top of it, the unit also comes with corrosion-resistant technology as well as advanced multiple protection systems in order to ensure that the end-users are safe, and doesn’t possess any risk.
The Camplux tankless water heater is CSA certified as well.
Not only that but also the unit automatically gets activated when the water pressure falls in the range of 7.0-150 PSI.
I highly recommend Camplux CA528 for cabins, tiny homes, apartments, and even salons.
Well, with the maximum power output of 150,000 BTU/ Hr, and a GPM of 5.28, the Camplux CA528 is bound to deliver high-performance effortlessly.
Best Natural Gas Tankless Water Heater Buying Guide
Well, in this section, we would be throwing light on all features you should look for when it comes to buying a natural gas tankless water heater.
Whether you’re a newbie or a seasoned professional, I would request you to NOT SKIP this section as we’ve tried to the best of our abilities to come up with this comprehensive guide for you which is full of information that you might be looking for.
Gallons per Minute
Frankly speaking, no one wants to run out of hot water especially when the surrounding is cold.
And, to deal with such situations, you can consider buying a natural gas tankless water heater.
Moreover, for receiving hot water with a constant flow, you should look for an appropriate gallons per minute ratio.
Fortunately, almost all the natural gas water heater that has been made to our list comes with an appropriate GPM.
Proper Venting System
To be honest, a proper venting system is very important if you’re planning to buy a gas tankless heater.
The proper venting is responsible for not only various safety measures but also channeling gas out from the household in order to prevent unnecessary water heating.
I always suggest my clientele look for products that come with at least a couple of years of warranty.
In simple words, the more the warranty period the better it is.
The longer duration of warranty offered by the manufacturer shows his trust and confidence in the offering.
At the same time, refrain from buying a product that doesn’t come with any warranty.
Fortunately, most of the natural gas tankless water heater that we’ve reviewed so far comes with a certain year of warranty.
Anti-Freeze Cold Safety
Well, if you’re looking for a natural gas tankless heater for an extremely cold region, then it MUST have an anti-freeze cold safety feature.
Honestly speaking, most of the heaters that we’ve reviewed in this post comes with computerized features for safety designed specifically for the colder region where temperatures reach frigid levels.
Definitely, the energy factor is an important buying factor because it is related to operating costs.
It’s always good to buy heaters that are energy star certified.
The good news is, most of the natural gas tankless water heaters that made our list are energy start certified.
In the worst case, look for products that are at least 90 percent energy-efficient.
In simple words, a higher energy factor simply means that the product is more energy-efficient and vice-versa.
Well, it’s a known fact that price can influence a buyer’s decision.
For example, if you’re on a shoestring budget, then you wouldn’t be able to buy a premium product irrespective of the fact that you liked the features of the product, right?
However, at the same time, you also need to understand that the costliest products aren’t always the best and vice-versa.
Always, look for the natural gas tankless water heater that not only caters to your needs but also falls well within your budget.
It’s a known fact that installing a gas tankless water heater can be a time-consuming, tedious, and complex process, so always look for a product that has a comparatively simple and easy installation.
However, if you’re a first-time buyer then my advice would be to take help from a professional or expedite the installation process under the guidance of a technician.
Natural Gas Tankless Water Heater Brands
Frankly speaking, you’re not gonna buy a tankless water heater every other day, right?
In fact, it’s a one-time investment and you’re gonna reap the benefits for years to come.
So, it’s also good to go with the one that is offered by a well-trusted brand even though it costs you a few extra bucks.
I don’t advise my clientele to go for a private-level product or a brand that has just launched the product in the market.
Rest assured, a brand such as Rinnai would definitely match up to your expectation.
Is a natural gas tankless water heater worth it?
Frankly speaking, even though a tankless gas water heater is more efficient as compared to a storage tank water heater still replacing the latter with the former could be expensive, and the payback time can be even longer than the warranty.
If the gas tankless heater comes with a warranty of 5 to 10 years, then replacing the tank heater with the former might not be a good financial decision.
Not only that but also many manufacturers of tankless water heaters recommend preventive maintenance to be done on their units.
Even some of the manufacturers recommend that you should periodically drain a tank water heater to flush out the sediments.
However, if your priority is energy efficiency, compact unit, environment friendly, reliability, longevity, and no standby heat loss, then definitely, you should opt for a tankless gas water heater.
Most of the natural gas heaters that made our list claims to be energy efficient up to 40 percent more as compared to a conventional water heater.
Not only that but also they claim to last almost twice (20 years) more than a conventional water heater.
Nonetheless, at last, it’s you who have to evaluate the pros and cons of a gas tankless hot water heater and finally make a buying decision.
6 Reasons Why You Should Upgrade to a Natural Gas Tankless Water Heater
Let’s have a quick look at some of the reasons that might help you to decide whether you should upgrade to a natural gas tankless water heater or NOT.
They save you money
Well, natural gas tankless water doesn’t use energy throughout the course of a day when no hot water is being called for.
Moreover, the traditional tank-style water heaters rely on a reservoir tank, and this tank is heated periodically so that when you do need hot water, it can supply it.
Whatever, if you aren’t home all day?
The good thing about tankless water is that it heats water only when it is needed so no extra energy is being used and wasted when you don’t need hot water.
You get a limitless hot water
Well, since the water that passes through a tankless unit is heated on demand and fed from your water main, you can rely on nearly unlimited hot water.
On the other hand, tank-style heaters can only supply you with enough hot water until the water is present in the tank.
In simple words, they can’t provide you with an endless supply of hot water.
They will not burst
I’ll not say that tank water heater burst so easily or frequently.
Although rare it can happen.
The good news is, a tankless natural gas water heater doesn’t comprise a tank so it will not burst and spill water all over the floor.
They are space efficient
As discussed earlier also, a tankless water heater is much smaller in size as compared to a conventional tank water heater.
And, as a result, these tankless water heaters are ideal for smaller homes, apartments, salons, etc where there is a shortage of space.
Quick access to hot water
The small, compact, and sleek design makes it feasible for a tankless gas hot water heater to be installed in a closet or pantry closer to the actual faucets.
So, you don’t have to wait for the hot water to cycle through the pipes for several seconds until it reaches the faucet or shower.
On the other hand, a conventional water heater generally comes with a large and spacious tank and is installed in most cases in the basement next to the furnace.
And, the best thing is, you can even qualify for government rebates
To be honest, this scenario depends on quite a few things, you may be eligible for a government rebate of between $300 and $500 in case, you opt to install a qualified tankless water heater in your home.
How much is a natural gas tankless water heater?
Well, on average a natural gas tankless water heater would cost you in the range of $1000 and $2800.
Frankly speaking, natural gas tankless hot water heaters involves a complex installation process that might need a professional.
So, you need to add additional installation costs as well in order to come to a final costing.
Total cost = Initial cost + Installation cost
How does a natural gas tankless water heater work?
Well, when you install a natural gas tankless water heater in your home, it is directly attached to the water line in order to deliver on-demand hot water.
What actually happens, when you open a hot water tap, the water flow sensor within your water heater is triggered and the burner is activated.
In fact, the water within your system begins to circulate through the heat exchanger, heating the water to the designated temperature and providing you with continuous hot water effortlessly.
And, as soon as, you turn off your water tap, the unit shuts down to save energy.
What should I consider before installing a natural gas tankless water heater?
Well, before installation, you’ll need to determine the incoming groundwater temperature, the ideal location in your home, and the correct water size that will suffice your hot water requirement.
The good thing about a tankless gas water heater is that it can be installed anywhere in your home with the correct piping – closets, garage, bathrooms, etc.
Moreover, in the warmer region where the risk of freezing is almost negligible, a tankless water heater can be installed on the exterior of the home to save on the interior space.
In this section, I would be responding to the queries related to the best natural gas tankless water heater review in order to help you make an informed buying decision.
Does it make sense?
What size natural gas tankless water heater do I need for a family of 5?
As per my knowledge and experience, a family of five would be needing a 10 GPM gas tankless heater if you live in the northern part of the USA where generally the input water has a lower temperature.
What is the best natural gas hot water heater for a large family?
Frankly speaking, all the natural gas heaters that made our list would cater to the needs of a large family.
Moreover, I’ve also mentioned my “top 3” picks in the editor’s choice section in order to help you with the buying decision.
Does a gas tankless water heater need a dedicated circuit?
Frankly speaking, until and unless the manufacturer requires it, there is no need for a dedicated circuit.
In fact, gas tankless water heaters use a tiny amount of amperage to ignite the flame.
Wrapping Up the Best Natural Gas Tankless Hot Water Heater Review
First and foremost, I would like to thank you for being with us till the end.
Secondly, I would like to bring to your notice that I along with my core team member have put loads and loads of effort into coming up with this idiosyncratic superlative comprehensive buying guide on a natural gas tankless water heater.
And, in case, you want to appreciate our efforts, then feel free to share this piece of information with the ones who are in need of it.
After all, sharing is caring, isn’t it?
Cutting long-story-short, let’s get back straight to the topic.
All the natural gas heaters that made our list are of high quality and worth the investment.
Honestly speaking, there isn’t anything like the “best” gas tankless water heater.
In fact, the term “best” is relative and not absolute.
For example, what may be best for me might not even cater to your needs and vice-versa.
So, always look for a gas water heater that not only comes caters to your needs but also falls well within your budget.
- Best Home Office Printer
- Best Smart Thermostats for the Money
- Commercial Tankless Water Heater Review and Buying Guide
- Propane Tankless Water Heater
- Electric Tankless Water Heater
- Tankless Water Heaters Review
- Tankless Water Heater Flushing Kit Review
- Best Hot Water Recirculation Pump Review
- EcoSmart Eco 27 Review