Best Gas Tankless Water Heater Reviews & Buying Guide (2019)

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Best Gas Tankless Water Heater Reviews & Buying Guide (2019)

If you decide to get yourself a tankless gas water heater, you are in the right place. Rather than just picking any instant gas water heater that appeals to you, we have done the research for the best tankless gas water heater reviews.

If your still not sure whether a tankless gas water heater is for you then be sure to check out our buying guide below the page or you can navigate straight to it by clicking on the table of contents above. This guide answers all the frequently asked questions and will give you an understanding of whether it is suitable for your household or whether its your preferred choice to the other fuel type options available.

Top 10 Best Tankless Gas Water Heater

We invested hours of due diligence into researching the best natural gas tankless water heater reviews in the market. We analyzed hundreds of customer reviews, questions and feedback from popular models and brands before arriving at our final selections.

You can rest assured that the gas water heaters selected in this review are the top in the market. They have met and surpassed customer expectations with little or no issues (and if they have we break it down for you).

If you are looking for specifically the best propane tankless water heaters then click on this link to see our top 10 reviews for that fuel type.

Natural Gas Tankless Water Heater

This review will focus on natural gas.

No matter what size household you have and whether you are looking for an indoor tankless gas water heater or an outdoor tankless gas water heater you will find one suitable for you in this review.

Here is our top 10 natural gas water heater reviews.

Top 10 Gas Tankless Hot Water Heater Comparison Table

Name Rating Prices Fuel Type Application Location

Camplux 12L 3.18 GPM

4.5 out of 5 stars (4.5 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Whole house Indoor
Rinnai V65IN 4.7 out of 5 stars (4.7 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Whole house or point of application Indoor
Rinnai V75IN 4.3 out of 5 stars (4.3 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural gas Whole House Indoor
Rheem RTG-84XLN 4.2 out of 5 stars (4.2 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Whole House Outdoor
Rheem RTGH-95DVLN 4.2 out of 5 stars (4.2 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Whole House Indoor
Takagi T-KJr2-IN-NG 4.2 out of 5 stars (4.2 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural gas Multiple Points Indoor
Takagi T-H3-DV-N 3.9 out of 5 stars (3.9 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Multiple Application Outdoor
Takagi T-KJr2-OS-NG 4.2 out of 5 stars (4.2 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Single point of use Outdoor
Rinnai V65EN 4.3 out of 5 stars (4.3 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural gas Single Point Outdoor
Rheem RTG-64DVLN 4 out of 5 stars (4 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural Gas Single point Indoor

Tankless Gas Water Heater Reviews

Below you will find an individual review for each of the top 12 selections. We go through the specifications of each natural gas hot water heater as well as the advantages and downsides of each one. If you want to find out the tankless gas water heater cost of each one then be sure to check the price on Amazon which is provided at the end of each product review.

We will sort out the best 12 best tankless water heater based on application. Firstly we will go through the best tankless water heaters for a whole household.

1

Camplux 12L 3.18 GPM Indoor Tankless Natural Gas Water Heater

  • Application Type: Whole house
  • Location: Indoor
  • Btu: 82,000
  • Gpm: 3.18
  • Energy Efficiency: 88.5
  • Size: 4 x 4.7 x 25.4 inches
  • Weight: 28.8 pounds
  • Operating gas pressure: 0.4PSI
  • Display: Digital
  • Warranty: 10 years

Camplux is one of the top brands of the tankless water heater with a strong reputation of quality and durable output. It is one of the leading manufacturers in home appliances, and they are well known for energy saving, innovation, and portability. This is one of the best tankless gas water heater ideal for the whole house with a flow rate of 3.18.

It comes in a sleek, black tempered glass casing design. There is a touch screen alongside a LED display where you can control the outlet water temperature. It was equipped with essential installation accessories like stainless steel pipe, power cord, and exhaust pipe. It can raise the temperature of the water as high as 95 to 149F.

All instructions needed for seamless installation are included in the package. Besides, the unit pulls just 0.35 Amps which makes it energy efficient. Moreover, the combustion process in the unit takes places safely, due to the advanced multiple protection systems.

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PROS:
  • Aesthetic design
  • Very easy to use
  • Comes with essential accessories
  • Safe combustion process

CONS:
  • Cannot be used at high altitude

User Rating:

User reviews: 4.5/5

4.5 out of 5 stars (4.5 / 5)

2

Rinnai V65IN 6.6 GPM Indoor Low NOx Tankless Natural Gas Water Heater

  • Application Type: Whole House or Point of application
  • Location: Indoor
  • Btu: 150,000
  • Gpm: 6.6
  • Energy Efficiency: 82%
  • Size: 13.9 x 8.8 x 23.6 inches
  • Weight: 49.8 pounds
  • Display: Digital
  • Warranty: 10-year on the heat exchanger, 5-year on parts, 1-year on labor.

Also on our list of whole house gas  tankless water heater is Rinnai V65IN. It employs the combustion of natural gas to raise the temperature of the water as it navigates the heat exchanger. Being a whole house unit, it can supply hot water to two or more points in the house at the same time.

You are guaranteed a steady supply of hot water as Rinnai V65IN is equipped with significant essentials for a steady flow. There is a temperature control with which you can set your preferred temperature. Hence, as the hot water flows through the various fixtures, it exists at the desired temperature.

There is also the innovative leak detection feature which shuts off the unit on detecting a leak. With the anti-frost protection, your device will last many years to come and the ten years warranty makes it safe to buy. It does not require outside venting and can also be used as a point of use application.

PROS:
  • Very quiet operation
  • Pretty long warranty period
  • Impressive safety features
  • Anti-frost technology

CONS:
  • Period flushing is essential for homes with hard water

User Rating:

4.7 out of 5 stars (4.7 / 5)

3

Rinnai V75IN 7.5 GPM Indoor Low NOx Tankless Natural Gas Water Heater

  • Application Type: Whole house
  • Location: Indoor
  • Btu: 180,000
  • Gpm: 7.5
  • Energy Efficiency:
  • Size: 14 x 9 x 23 inches
  • Weight: 49.6 pounds
  • Display: Display controller
  • Warranty: 10 years on heat exchanger

Rinnai V75IN is your ticket to a continuous flow of hot water for the various points in your home. If you are low on budget and need a steady supply of hot water for multiple points in your house, Rinnai V75IN is a terrific choice. It was designed for small and medium-sized home and offer hot water to when needed.

If you need a trusted tankless gas water heater that is reliable and durable, this is a good choice. It is compact, reasonably priced and can be mounted on the wall. The energy saving future makes it stand out as one of the best gas water heater brand.

With a wall mounted controller, you can set the desired output temperature. Not only that, you get to monitor the flow rate and the temperature of the incoming water temperature as well. This is the ideal component to run your dishwasher, showerhead, etc.

PROS:
  • High flow rate to serve many fixtures at once
  • Ability to keep tab on inlet and outlet water temperature
  • A very easy installation process
  • Quiet operation

CONS:
  • Your water bill might rise

User Rating:

4.3 out of 5 stars (4.3 / 5)

4

Rheem RTG-84XLN 8.4 GPM Low Nox Outdoor Tankless Water Heater

  • Application Type: Whole House
  • Location: Outdoor
  • Btu:180,000
  • Gpm: 8.4
  • Energy Efficiency: 84%
  • Size: 14 x 10 x 26 inches
  • Voltage 120V
  • Weight: 54 pounds
  • Display: digital
  • Warranty: 12 years

If you need an affordable gas tankless water heater, consider Rheem RTG-84XLN. It is a mid-size gas water heater that can serve an average family of 4 with constant supply of hot water. One of its outstanding features is the smart technology which regulates demands on energy. Hence, you can be assured that your energy bills won’t soar abnormally

Also, one fantastic feature that stands this out as one of the top tankless water gas water heater brands is the water saving capacity. You can achieve an annual saving of 1100 gallons of water because efficiency is built into the pipes to reduce water wastage.

Worthy of note as well is that the unit is pretty sleek and compact in size. This translates to sufficient saving capacity. With two or three bathrooms, you are assured of a constant supply of hot water without compromise on the flow rate or outlet water temperature.

PROS:
  • Impressive energy and water saving features
  • High compatibility
  • Very efficient
  • Compact design
  • Comes with a remote control

CONS:
  • Only suitable for outdoor installation, hence, needs to be protected from rain

User Rating:

4.1 out of 5 stars (4.1 / 5)

5

Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater

  • Application Type: Whole House
  • Location: indoor
  • Btu: 199,000
  • Gpm: 9.5
  • Energy Efficiency: 94%
  • Size: 18.5 x 9.8 x 27.5 inches
  • Weight: 79 pounds
  • Display: LED
  • Warranty: 12 years

If you live in a large household and needs a tankless gas water heater to serve every point effectively, Rheem RTGH-95DVLN is a good choice. It is recommended for a small and large house with the ability to handle as much as five bathrooms. With energy efficiency of 94%, it delivers excellently and is economical in gas consumption. It is a high-end water heater that guarantees owners an endless supply of hot water

One of the things that stand it out of our tankless gas water heater review is the innovative, intelligent control system. This is just a fancy name for the power saving capabilities of this unit. There is also a led display that allows you to keep tab on temperature, and even the remote temperature that gives you access to set the device with ease.

You can fit it anywhere and is suitable for commercial operation. Worthy of note is the impressive safety features that come with Rheem RTGH-95DVLN. The government certifies the device alongside the antifreeze protection. This intelligent unit can also alert you to danger in the piping or venting system.

PROS:
  • Impressive safety features
  • Safe for kids
  • Compact design
  • Presence of remote control
  • Highly efficient

CONS:
  • Pretty high installation cost

User Rating:

4.2 out of 5 stars (4.2 / 5)

Multi point Gas Tankless Water heater

6

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

Single Point Tankless Gas Water heater

  • Fuel Type: Natural gas
  • Application Type: Multi point
  • Location: Indoor
  • Btu: 140,000
  • Gpm: 6.6
  • Energy Efficiency: 83%
  • Size: 6.7 x 13.8 x 20.3 inches
  • Weight: 37 pounds
  • Display: Digital
  • Warranty: 10 year heat exchanger and 5 year parts

First, on our list of multi point tankless water heater is Takagi T-KJr2-IN-NG. It is an indoor tankless water heater capable of supplying hot water to various fixtures in the home like garage and shower, etc. It comes with many accessories that make it one of the best gas tankless water heater brands.

With a flow rate of 6.6 gallons per minute, it can serve two or more fixtures at a time. You get to have a stable water temperature because of the presence of a thermistor. It is cheap and does not give out toxic gas to the environment. If you stay in a small light apartment, this is the perfect choice for you.

PROS:
  • Constant outlet water temperature
  • Quick and seamless installation
  • Compact size

CONS:
  • Some people complain of leakage issue

User Rating:

3.9 out of 5 stars (3.9 / 5)

7

Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater

  • Fuel Type: Natural gas
  • Application Type: Multiple Application
  • Location: Indoor
  • Btu: 199,000
  • Gpm: 10
  • Energy Efficiency:
  • Size: 11.2 by 17.8 by 24.9 inches
  • Weight: 85 pounds
  • Display: Digital
  • Warranty:15 years on heat exchanger

This is a tankless water heater recommended for commercial and residential application. This devise features high grade material in producing a tankless gas water heater that performs at optimum capacity. If you stay in cool climates, this is the right component to supply hot water to three showers at the same time.

This is one of the best indoor tankless gas water heaters as it comes with amazing features which makes it stand out. The device does not use lead in any of its components; hence you are in good hands. The safety capacity that is built into it is fantastic – antifreeze protection, surge control, overheating and many more. This is the ideal unit to serve various points in your house without a shortage of hot water.

It comes with an impressive flow rate of 10 gallons per minute, the highest on our list and also higher than what electric tankless water heater will offer. It is one of the most efficient natural gas water heaters because it is safe and efficiently combusts water. The unit also comes with direct vent construction which makes installation straight forward.

PROS:
  • Works without heated air
  • Many impressive safety features
  • Minimal carbon footprint
  • It is durable
  • Installation is straightforward

CONS:
  • Some customers report the incidence of broken parts

User Rating:

4 out of 5 stars (4 / 5)

Single Point Tankless Gas Water heater

8

Takagi T-KJr2-OS-NG Outdoor Tankless Water Heater, Natural Gas

  • Application Type: Single Point or Multipoint
  • Location: Outdoor
  • Btu: 19,500 – 140,000 BTU/hr
  • Gpm: 6.6 GPM
  • Energy Efficiency: 82%
  • Size: 20.5″ H x 13.8″ W x 6.7″ D.
  • Weight: 38 pounds
  • Display: Digital
  • Warranty: 12 year heat exchanger, 5 year parts and 1 year labor.

On the search for a perfect gas tankless water heater that will meet your need, give Takagi T-KJr2-OS-NG a try. This is a portable and powerful tankless water heater that features state of the art technology in heating water. This is a product of Takagi, one of the giants in the household appliance industry.

It is a 38 pound device and stands out as one of the best outdoor tankless gas water heaters. It is compact and suitable for installation anywhere outside your house. It is powerful enough to meet all your hot water needs, and comes with a high flow rate meaning all the necessary points will be served.

With a BTU value this high, it can power three laundry machines at the same time. There is a fully modulating burner that controls the water and gas valve. You can also keep tabs and control the water temperature via the remote control. There are abundant safety features that make this one of the best tankless water heater brand.

PROS:
  • Abundant safety features
  • Comes with remote control
  • Durable and reliable
  • High flow rate means a continuous flow of hot water

CONS:
  • The need for a dedicated gas line

User Rating:

4.3 out of 5 stars (4.3 / 5)

9

Rinnai V65IN 6.6 GPM Indoor Low NOx Tankless Natural Gas Water Heater

  • Fuel Type: Natural gas
  • Application Type: Single point of use
  • Location: Outdoor
  • Btu: 150,000
  • Gpm: 6.6
  • Energy Efficiency:
  • Size: 13.8 x 6.8 x 20.9 inches
  • Weight: 47.4 pounds
  • Display: digital
  • Warranty: 10-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor

In the class of single point of use tankless water heater, we have Rinnai V65EN. It is powered by natural gas that works through an internal array of sensors, heat exchangers and burners. The unit has sensors that detect the flow of water and fires up the burner which heats the heat exchanger. Thus, thus, transfers heat to the water flowing in the pipe. It is ideal for small homes hence used as a single point application.

It comes in a pretty compact design hence will save space. It also features sophisticated technology that allows it to work at optimum capacity. While it is not difficult to install, the service of an expert is still needed. This is recommended to guide against voiding your warranty. This is your ticket to a constant flow of clean and reliable hot water at a consistent temperature.

The unit comes with impressive safety features which make it stand out, for instance, the antifreeze feature. The digital temperature controller allows you to lock the temperature at the desired point for as long as you want it. One of the things that stand this tankless water heater review out is that it is energy star certified, which helps regulate demand on energy.

PROS:
  • Installation is easy
  • Presence of safety features
  • Light in weight

CONS:
  • Suitable for small homes only

User Rating:

4.7 out of 5 stars (4.7 / 5)

10

Rheem RTG-64DVLN Prestige Low NOx Indoor Direct Vent Condensing Tankless Natural Gas Water Heater

  • Fuel Type: Natural gas
  • Application Type: Single point and Whole house
  • Location: Indoor
  • Btu: 360,000
  • Gpm: 5.3
  • Energy Efficiency: 82%
  • Size: 14 x 10 x 26 inches
  • Weight: 54 pounds
  • Display: Digital
  • Warranty: Parts  – 5 Years; Labor – 1 Year; Heat Exchange – 12 Years

Final on our list of gas water heater reviews is Rheem RTG-64DVLN. It is a gas water heater that can be used as a whole unit or single point of use application. This high-class heater delivers a steady supply of hot water at the preset temperature. It is safe and comes with simple features to make it appealing to users. This first class product employs a next generation burner which is the best in the industry and hence has proven to be one of the best tankless gas water heater.

At an inlet temperature of 35F, the device operates at a flow rate of 6.8 gallons per minute and an inlet temperature of 45F, a flow rate of 5.3 gallons per minute. With this, it can handle various points in the house that needs hot water supply. The vents do not require any adapter as the component uses a 3 inch per 5 inch concentric vent system.

For safety and convenience of use, there is a remote control that allows you to control the thermostat within a range. It is compact in size and can be installed anywhere without much demands on space.

PROS:
  • The unit is energy efficient, saves a lot of money
  • Smart cable allows it to work for big families
  • Impressive safety features
  • Effective and simple installation system that requires no adapter

CONS:
  • The need to purchase extra expensive installation accessories

User Rating:

4.1 out of 5 stars (4.1 / 5)

Buying Guide And Frequently Asked Questions About Tankless Gas Hot Water Heaters 

Below we will go through general information about tankless gas water heaters such as:

  • Advantages
  • Disadvantages
  • Savings
  • Application Types
  • How To Select A Natural Gas Tankless Water Heater
  • How Much Does Installation Cost For A Gas Tankless Hot Water Heater

Advantages of natural gas Tankless Water heater 

If you are thinking of installing a gas tankless water heater, there are many advantages you will derive. A few of these are:

Long Lifespan:

A standard, high-quality gas tankless water heater last pretty long, up to two decades with proper maintenance. This can save you the need for replacement every couple of years.

Special Financing:

Tankless gas water heaters are more efficient which makes the owner qualify for a special rebate from the government to offset the huge installation cost

High Flow Rate:

Natural gas tankless water heater delivers hot water at a very high flow rate, compared to their electric counterpart. This enables it to serve all needed fixtures in the house adequately, without any point suffering

High Temperature:

tankless gas water heater uses natural gas to heat water. This removes the limit to the amount of outlet water temperature that you can get from the unit.

Disadvantages of Natural Gas Tankless Water Heater

As appealing and exciting as the advantages of the tankless gas water heater are, it does come with several drawbacks as well.

  1. High Installation Cost
  2. Gas tankless water heater are pretty complicated and not straightforward like their electric counterpart. For instance, it needs a complex venting system that expels combustion gas safely. This venting system has to be constructed anew as the vent system of most home are not usually compatible. This makes the installation cost high and the process tedious.
  3. Maintenance

Another thing you need to know about tankless gas water heater is the need for cumbersome maintenance routine. The unit should be maintained yearly by a licensed technician who ensures that the combustion process is safe. This is essential to keep the warranty valid. Also, there has to be regular flushing because tankless gas unit are prone to the build of scale. This makes the maintenance of a gas unit stressful.

How much will a gas tankless water heater save you? 

Many reports online have given an insight into the savings you will have when using a tankless gas water heater. Have in mind, however, that there is no direct answer to this but know with certainty that you will have some savings with a gas tankless water heater.

Knowing how much you a natural gas tankless water heater will save you should be a factor of the volume of water used in your household. This explains why a large house will save more in the long run when using a gas tankless water heater compared with a less populated household.

What are the different types and applications of a tankless gas water heater? 

Tankless water heaters are classified based on the source of fuel and how it is used. Hence, you can have a gas tankless water heater that serves a single point as well as the one that helps the whole house. With this, we have the following types of gas tankless water heater:

1. Single Point of Use 

Single point of use application is required if you have many points in the house that needs an independent supply of hot water. This gets rid of the waste and losses that occur as the hot water flow from the heating point to where it is needed. Hence, gas tankless water heater works exactly near the point where it is needed for instance, under the sink or just by the laundry etc.

Single point gas tankless water heater saves cost because they are usually small, and the very effective.

2. Multipoint Application

A multipoint natural gas tankless water heater is the ideal choice if you need hot water in remote locations like garage, cloakrooms etc. This is the best choice to handle your shower and laundry if a single point is used at a time.

3. Whole House Application 

If you have many points in the house that needs hot water supply, the whole house application is a good choice. They can handle the demand for excess hot water and usually have high flow rates. It can serve many fixtures at a time, for instance, laundry, shower head and kitchen sink depending on the size.

They are usually expensive but effective since they are designed to handle many points at once.

Practical Steps on Selecting a Gas Tankless Water Heater

Since a gas tankless water heater is a significant investment, it is vital to tie all loose ends before making a selection. As a result, we have the following tips to guide in selecting a tankless gas water heater.

1. Installation Needs:

Before you choose a gas tankless water heater, it is vital to ensure that your gas supply line can handle the extra demand. This is vital to the smooth operation of the unit.

a) Venting requirements:

There are many top tankless gas water heater brands in the market. This translates to the fact that venting requirements will vary. Keep the following in mind before selecting a gas tankless water heater

  • Select category III stainless steel (UL1738 certified) venting.
  • Check the local building code to make sure you meet all requirements.

 b) Venting Needs:

there is a big chance your gas tankless water heater will come with venting kits. Hence, be sure to check this to be confident that you have all the requirements. Depending on the specific point of installation, the chances of the venting accessories meeting your needs are pretty low.

As a result of this, endeavor to know the length and other dimensions of your vent routes, and the paths of the discharge via the walls.

Also, there is a possibility you might need an electrical connection for your gas tankless water heater. Be sure you understand the basic requirements of the unit you are buying so that your house electrical system will be able to serve it

2. Location and Mounting Space 

A tankless water heater can be mounted anywhere depending on the application type. Since they are small in size, they do not need a particular location for installation. You can install them in the closet, under the stair and even outside as long as it is safe from the elements (debris, pets, kids, direct sunlight and splashed water)

If you had a traditional water heater that you uninstalled, we recommend installing your new unit at the same point. This will allow you to reduce installation cost and use some critical accessories of the old unit.

In selecting a location, you need to consider the plumbing configuration of your house. The point of installations should not necessitate significant plumbing change or alteration. The essence of this is to cut cost. The point of installation should also be central to the various points that demand hot water. This is to reduce the distance hot water will travel thereby reducing temperature loss.

3. Size and Demands

Before choosing your gas tankless water heater, it is vital to know the flow rate, alongside the desired outlet water temperature. The following steps can help you size your gas tankless water heater correctly:

Step 1: Calculate the Total Flow rate 

The accurate value of the flow rate is essential which is a factor of the maximum number of the device that will serve the tankless gas water heater. When you know the individual values of these devices, add them up. The value should correspond to the flow rate of your gas tankless water heater

For instance, assume you will run two laundry rooms with flow rates of 1.8 gallons per minute with a shower rate of 2.3 gpm. The minimum flow rate of your ideal tankless water heater should be 5.9 gallons per minute.

Step 2: Determine the Desired Temperature Rise

An idea of the temperature at the various points of use is essential to determine the needed temperature rise. You will subtract the desired outlet temperature from the outlet water temperature. As a rule of thumb, you should assume a temperature rise of 50F. With this, you will not have to undersize your gas tankless water heater.

People dwelling in areas with a warm climate will have a higher incoming water temperature, with an outlet water temperature around 100 to 1100F. Your tankless gas water heater should give a temperature rise of about 55F

Step 3: Calculate the Desired Flow rate

You need to know the amount of water you need. If you have a laundry and a shower that you will probably use simultaneously, you need to know the combined flow rate. The chart below shows the range of water usage alongside the average temperature for the various faucets in the house.

Fixtures Average Flow (GPM) Average temperature (Faharient)
Tub 4.0 102
Shower 2.5 – 3.0 104
Washing machine 2.0 120
Dishwasher 1.5 110
Kitchen Sink 1.5 110

 

With the above, if you want to run two showers at the same time, you need about 6 gallons of water per minute. If you are running the bathtub and a dishwasher, you will need a flow rate of 5.5 gallons per minute.

All in all, your aim should be getting a tankless water heater that will meet your need in terms of the flow rate and possibly exceed it a little. Under sizing your tankless water heater is not a good idea.

How Much does it Cost to install a gas Tankless Water Heater? 

Many households that have installed the gas tankless water heater reported that the total cost of installation is between $982 and $2,862.

There is no specific price because most tankless gas water heaters as well as households come with different requirements.

A plumber could bill you between $45-$150 per hour.

One thing to note is that the average installation cost range includes various accessories that are necessary for specific models and households. Some examples are venting accessories, gas connector kit, mounting hardware, and a lead-free brass valve set to name a few.

Conclusion: Gas Tankless Water Heater Review 

Without any doubt, a tankless gas water heater is a terrific choice for many households, especially those whose natural water temperature is quite cold. It heats up water much faster then the electric counterpart and has an extremely long lifespan.

Our top 12 best tankless gas water heater selections have been backed up by research, customer feedback and verified reviews.

Save time, money and headaches by selecting the options above if a natural gas water heater is whats required for your household!

If your unsure take time to follow our buyers’ guide. Consider your specific household needs such as application, location, water flow temperature and rate of water consumption and then make your selection accordingly!

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