Best gas tankless water heater 2023

Are you looking for an energy-efficient and cost-effective way to provide hot water in your home? You need to consider investing in the best gas tankless water heater of 2023. This comprehensive buying guide will help you make the right choice based on your needs and budget. With all the options available, it can feel overwhelming, but we can help you sort through all the details and find the perfect fit for your home!

Best gas tankless water heater 2023

  1. Rinnai V94iN Water Heater
  2. RVMP FG-SBMC-11 Water Heater
  3. Camplux AY132 Water Heater
  4. Stiebel Eltron Water Heater

1)Rinnai RU199iN Water Heater

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The Rinnai RU199iN Water Heater is a great choice for those looking for a reliable and long lasting hot water supply. It has an eleven gallon capacity, a silver/grey finish, and runs on natural gas. The Circ-Logic feature helps optimize hot water delivery, while the demand recirculation provides a constant stream of hot water.

It also has an 11 GPM rating for maximum efficiency. We are especially impressed with the energy efficient design which helps save energy and costs. The Rinnai RU199iN Water Heater is a terrific choice for all hot water needs.

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2)Rinnai V65eN Water Heater

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The Rinnai V65eN Water Heater is the perfect solution for all heating needs. With 6.6 Gallons of hot water supply, it is capable of providing hot water for multiple purposes. The pre-set temperature of 120 degrees F is convenient and energy efficient, requiring less energy for consistent temperatures. The integrated error code system ensures user safety and makes it easy to diagnose any errors.

Its compatibility with the RE160eN model makes it easy to incorporate the V65eN in existing systems. With a maximum flow rate of 6.5 GPM, the Rinnai V65eN can cover a large amount of space with hot water. The Rinnai PRO Controller allows you to monitor and control your water heater from anywhere. All this makes the Rinnai V65eN an ideal choice for both residential and commercial properties.

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3)CAMPLUX Water Heater

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The Camplux Water Heater is perfect for anyone looking for a reliable hot water solution. With a 3.18 gallon capacity, Camplux is able to provide plenty of hot water. It also features a 0.5-inch NPT fitting for hassle-free installation.

The 82,000 BTUs provide plenty of hot water and energy-efficiency. Plus, the oxygen-free copper ensures corrosion-free performance. The modern design of the Camplux Water Heater adds a touch of style and elegance to any bathroom or kitchen. The Camplux Water Heater makes it easy to install and use, with no major plumbing or installation difficult. Combining great features and a sleek design, the Camplux Water Heater is an excellent choice for hot water solutions.

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4)Rinnai V94iN Water Heater

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The Rinnai V94iN Water Heater is an incredibly efficient and reliable water heater. With a 9.8 gallon capacity, Natural Gas, and a RE199iN unit it provides consistent hot water on demand. It also has the capability to supply up to 6 fixtures at once, allowing for a generous amount of water usage.

It’s also incredibly smart, with WiFi control allowing for remote temperature adjustment, allowing for greater convenience and efficiency. In addition, its durable design gives it a longer lifespan than other water heaters, providing peace of mind. Whether you’re looking for a more efficient water heater, or one that functions better than ever before, the Rinnai V94iN is perfect for the job.

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5)RVMP FG-SBMC-11 Water Heater

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The RVMP FG-SBMC-11 Water Heater is a gas-powered, advanced safety water heater that meets the highest safety standards. It includes many features like audible alarms, photoelectric sensing, and advanced safety protection. It is equipped with temperature protection, as well as leak censors, so it can detect potential water leaks and shut itself off when necessary.

It has a special design that insulates heat, reducing energy waste and making it safer and more efficient. The temperature on the thermostat can be adjusted, and it is designed to operate quietly. The RVMP FG-SBMC-11 water heater is a great choice for those looking for an efficient, safe, and reliable solution for their hot water needs.

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6)Camplux AY132 Water Heater

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The Camplux AY132 Water Heater is a great choice for people wanting a hot water solution without taking up too much space. It has a 5 liter capacity and a 1.32-gallon capacity which is perfect for small to medium-sized households.

It offers several important safety features such as Flame Failure Protection, Dry Combustion Protection, and Overheat Protection to ensure users will be safe while using the water heater. It also has a maximum temperature of 114.8 and a minimum working pressure of 3.0 PSI so users can expect consistent performance from the heater. Overall, the Camplux AY132 Water Heater is an excellent option for people wanting a hot water solution that is both efficient and safe to use.

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7)Stiebel Eltron Water Heater

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This Stiebel Eltron Water Heater is a reliable choice for households that need consistent hot water for showers and other purposes. It provides 0.13 gallons-per-minute flow rate, perfect for accommodating the demands of a large household. Its hard-wire connection allows for the heater to be installed easily and the ENERGY SAVER feature means you will not be paying too much on energy bills.

The temperature range that can be achieved with this water heater is impressive, with it able to reach as low as 40°F up to 140°F. It has 12kW of power coupled with a 240V rating and should give an adequate amount of hot water supply. Overall, this Stiebel Eltron water heater is an excellent option for a household looking for consistent heated water over an extended period. It is not the most energy efficient, but considering its temperature range, it is justified. 

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Best gas tankless water heater 2023-Complete Buying Guide 

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The ideal gas tankless water heater is a versatile, heat-on-demand system that quickly delivers hot water when you need it. It’s one of the most cost-effective home improvements you can make. Compared to standard gas hot water tanks, tankless heating models are more energy efficient and can save money in both energy bills and replacement costs over the long term.

In this buying guide, we will help you choose the best gas tankless water heater for your needs. We’ll review some of the most popular models on the market today, including their specifications, features, and warranties. We will also touch on important considerations like installation costs and fuel types to ensure that you get the ideal unit for your home. Finally, we’ll discuss how to use a tankless water heater properly in order to save money and conserve resources over time.

Definition of a gas tankless water heater

A gas tankless water heater is a system that provides hot water on demand without the use of a physical storage tank. These heaters are compact, efficient and can be wall-mounted making them perfect for smaller spaces. Gas tankless water heaters use natural gas or propane to deliver hot water when it is needed and offer many advantages over traditional tanks heaters including higher energy efficiency, cost savings, greater water pressure and longer lasting system durability.

They may require special licensing and venting requirements that may increase cost. In addition, they require regular maintenance to ensure maximum performance which can add up in the long run. It is important to thoroughly research all requirements before purchasing a gas tankless water heater as these are considered major purchases with long-term implications.

Benefits of using a gas tankless water heater

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When investing in a gas tankless water heater, one must keep in mind various benefits. A natural gas tankless water heater is relatively small and can easily be installed inside or outside of your home. Unlike traditional hot water tanks, since these do not have an accumulation tank, they use much less energy to heat the water. This decreases your carbon footprint as well as substantially lowers your monthly energy bills.

Furthermore, since they activate on demand and create no storage tank, the usable space around them is increased even further; allowing you to use the area for any other purpose that may arise. Also, compared to a traditional tank based water heater system which has limited amount of hot water available at all times until it gets refilled, with a natural gas tankless system you get unlimited hot water supply all day long.

Overview of the 2023 market for gas tankless water heaters

Consumers are become more and more aware of the environmental benefits and cost savings of gas tankless water heaters compared to traditional models. The 2023 market for such systems is expected to grow, with an estimated 12% increase in sales from 2020.

Manufacturers have responded to the anticipated rise in demand by producing a wide range of contemporary designs coupled with enhanced energy efficiency ratings. For example, most units now feature an Energy Factor (EF) of .82 or better, meaning that they can generate 200-400 gallons of hot water from the same amount of gas used to produce just 40 gallons in a traditional model.

Fortunately for consumers, these technological advances have not resulted in higher prices; on the contrary, prices have remained very competitive when compared to other types of gas and electric water heaters.

In addition to efficiency and price considerations, consumers should pay special attention to other features when selecting their gas tankless water heater. These include:

  • Warranties (both product and installation)
  • Temperature settings range
  • Water filter compatibility
  • Availability or exclusive online deals or discounts

Knowing which model has been rated highest by Consumer Reports or other specialist sites is a useful starting point for identifying your ideal gas tankless water heater and assessing its value for money when compared with alternative systems on the market this year.

Factors to Consider When Buying a Gas Tankless Water Heater

A gas tankless water heater can have a major impact on your home’s energy efficiency. Before committing to one, you should take into consideration several factors. Following is a list of important factors that should be taken into consideration when selecting the right gas tankless water heater for your needs:

  1. Quality: Choose a water heater that meets or exceeds industry standards and complies with all local codes and regulations. Ensure that it is energy-efficient and has safety features such as temperature sensors and automatic shutoff controls.
  2. Size & Capacity: Tankless water heaters come in various sizes and capacities, ranging from small point-of-use models to larger whole-house systems. Consider the size of your home, total hot water demand, and peak hot water demand when choosing the right size unit for your needs.
  3. Gas Utilization: Your choice of a gas tankless water heater will depend on the type of fuel you plan to use – natural gas or propane – as well as the fuel’s availability where you live. Check with your electric utility company or installer to determine which type of fuel is best for you in terms of cost savings and efficiency ratings.
  4. Installation Costs: The installation costs for a gas tankless water heater can be higher than those for conventional storage tanks since additional piping, venting, and components are needed due to their compact design. Make sure that you get multiple quotes from reputable installers before deciding on one to ensure that you are getting an accurate estimate of costs associated with installation/replacement services included in the purchase price before making any decisions based on budget constraints only.
  5. Warranty & Repairs: Generally speaking, reputed manufacturers provide warranties covering repairs or replacement services over a certain timeframe after purchase (e.g., 10 years) which may vary significantly between models–check manufacturer information to ensure coverage if repairs are needed down the road or if there are any guarantied savings offered against energy bills through specific models over certain lengths of ownership–again checking manufacturer information is key here as details may vary significantly between models/brands etc.. Furthermore many brands also offer extended warranties through qualified professionals so make sure these are also considered if available when making final unit selection decisions regarding feature vs performance vs quality vs price point comparisons overall prior too proceeding further.

Flow rate

The flow rate of a gas tankless water heater is an important factor to consider when shopping for a model that has the ability to quickly provide hot water in sufficient supply. Tankless gas heaters are typically rated by their maximum flow rate, in gallons per minute (GPM).

A high flow rate is necessary if you need a lot of hot water at once, such as when filling up large buckets or multiple shower heads. If you only need one point of use, such as a single dishwasher or shower head, then you can usually get away with fewer GPMs.

It’s also important to think about other sources of water usage in your home that will be competing for water pressure in the same zone if they draw from the same faucet or drain line. The total GPM used by these sources should be factored into your decision so that there is enough GPM left over for whatever new appliance you are installing. This could mean opting for a unit with a higher GPM than what you need just for individual points-of-use. As always, it’s best to consult with an experienced plumbing professional prior to selecting and installing any type of heater.

Energy efficiency

When looking for the best gas tankless water heater, you should always consider buying a model that’s energy-efficient. This means it should use as little energy as possible while still providing you with sufficient hot water. The most energy-efficient models are those with a high Energy Factor (EF) – the higher the EF number, the more efficient it is.

To calculate the EF of a gas tankless water heater, look at its Thermal Efficiency and Standby Loss rating. Thermal Efficiency measures how much heat your unit retains when being used and standby loss is simply how much heat is lost to outside temperatures when not in use. The higher these numbers, the more efficient your water heater will be. You can find these ratings on any operating manual or product sheet of tankless hot water heater models that you might be considering for purchase.

Additionally, research whether or not your local utility company offers incentives for purchasing an energy-efficient unit since this can potentially save you money in the long run.

Size and capacity

When considering gas tankless water heaters, size and capacity play an important role. A tankless water heater that is too small for your needs can lead to disappointment, as it may not provide enough hot water when more than one fixture is in use. On the other hand, if you purchase one that is too large for your home and hot water needs, you may be paying for unnecessary features and spending more money than necessary.

To determine the size of tankless water heater you will need, determine the number of fixtures that typically run at the same time or that could potentially run simultaneously in your home (this includes faucets for showers and sinks, dishwashers and washing machines). You will then want to calculate the flow rate (GPM) for each individual fixture; this value can usually be found on a label near the plumbing fixture or installation instructions.

Multiply this number by 3–which reflects a thirty-second burst of hot water being delivered–to determine what GPM requirement best fits your situation. For example: if you have three shower heads with a flow rate of 2 GPM each, then multiply 2 (fixture) x 3(flow duration) = 6 GPM total demand output. In this scenario, you should look for a tankless water heater with at least 6 GPM output capacity in order to meet all of your hot water needs at any given time without sacrificing performance or efficiency.

Top Gas Tankless Water Heaters in 2023

The gas tankless water heaters in this article are a great choice if you are looking to upgrade the efficiency and convenience of your home. They feature quick installation, easy maintenance and no standing water, but there are some factors to consider before investing in one of these products.

Here we provide a comprehensive review of the best gas tankless water heaters on the market. We will also cover buying considerations, installation information and troubleshooting tips for each model. Whether you value performance, energy savings or both, these compact yet powerful heaters should help meet your needs. Each unit listed is verified for optimal performance and has earned top industry ratings for efficiency and durability.

Rinnai RL94iN Natural Gas Tankless Water Heater

The Rinnai RL94iN Natural Gas Tankless Water Heater is ideal for homes with a demand of up to nine gallons per minute. This water heater is designed to provide a steady supply of hot water, with no need to wait for a tank to fill up. The advanced features make it energy efficient and help you save money on energy bills by reducing your energy costs.

It has an auto temperature control, freeze protection device, and the ability to connect appliances. For convenience, the RL94iN can be directly vented or connected with PVC pipe, making installation simpler and more efficient.

The Rinnai RL94iN is designed to last through multiple showers or laundry cycles without needing additional water heating cycles; saving you time and money in the long run. With its innovative design and advanced technology, the Rinnai Natural Gas Tankless Water Heater is an excellent choice for any home needing an efficient tankless hot water heater solution.

Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater

The Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater is a gas-powered hot water heater that offers maximum convenience and efficiency. This comprehensive guide will help you determine if the Noritz NRC66DVNG is the best water heater for your household’s needs.

The Noritz NRC66DVNG features several innovative technologies that deliver superior performance. It features a stainless steel heat exchanger, which ensures consistent heating and long-term reliability. It also features an advanced electronic ignition system, designed for safer and faster startup than other models.

Likewise, its digital controller allows users to easily set and adjust temperatures from 60 to 140 degrees Fahrenheit, as well as make sure the heater works within the user’s desired parameters. Furthermore, it provides multiple safety functions including; exhaust temperature monitoring, overheat protection and freeze protection.

Last but not least, this water heater has an impressive energy efficiency rating of 94%. It also has low operating noise levels of 61dB, making it suitable for both indoor and outdoor places of use without disrupting surrounding activities or sleep patterns. In addition to all these great features, it has front panel LED codes to diagnose any problems directly with the unit itself while minimizing technician diagnosis time.


In conclusion, when looking for the best gas tankless water heater 2023, it’s important to consider a number of factors, such as efficiency, flow rate, and size. You should also do your research and read reviews before purchasing a water heater so you can make an informed decision. Consider the energy star rating of the unit, as well as its warranty information. It’s also important to take into account installation costs, associated maintenance expenses and other safety concerns.

Knowing what type of gas tankless water heater is right for your needs can help you avoid costly repairs and replacements down the line. With these tips in mind, you can find the perfect gas tankless water heater that will serve your needs for many years to come.


What brand of gas water heater is the most reliable?

The most reliable brand of gas water heater is usually considered to be Rheem. However, other reliable brands include Bradford White, American Water Heaters, and A.O. Smith.

What is the most common problems with tankless water heaters?

The most common problems with tankless water heaters are insufficient hot water, lukewarm water, high energy costs, and mineral and limescale buildup, leaks, and noisy operation.

How to choose a gas tankless water heater?

  1. Determine your hot water needs: Gas tankless water heaters can range from 20,000 to over 200,000 BTUs. Measure the flow rate (in gallons per minute) of all hot water fixtures in your home and add them up. This total flow rate determines the size of the water heater you’ll need.2. Evaluate the energy source: Tankless water heaters typically use natural gas or propane to heat water. If you don’t have a natural gas line running to your home, you’ll need to purchase a propane water heater.3. Consider the water inlet and outlet temperature: Tankless water heaters are designed to provide a specific temperature rise, which is the difference between the incoming temperature of the water and the temperature of the water when it comes out. This should be compatible with your home’s expected incoming water temperature.4. Check the venting requirements: Gas tankless water heaters require a vent to expel exhaust safely. Check the manufacturer’s specifications to make sure the venting meets your home’s needs. 5. Look into Energy Star qualification: Look for the ENERGY STAR label to ensure you’re purchasing an efficient gas tankless water heater. The ENERGY STAR label also absorbs some of the cost of the unit in utility company rebates.

Are tankless water heaters worth it 2022?

Tankless water heaters can be a great investment, as they help save on energy costs and provide endless hot water. However, the upfront cost can be significantly higher than conventional tank systems. Therefore, the answer depends largely on your individual needs, budget, and energy costs. Additionally, the most efficient and cost effective tankless systems may have different options depending on where you live. It’s best to compare the various models and speak with a professional before making a decision.

What is the number one gas water heater?

The Rheem Performance 40 Gallon Gas Water Heater is considered the number one gas water heater.

Which company is better for water heater?

There is no definitive answer to this question as there are many different companies that specialize in selling water heaters. It is best to research the various brands and models to determine which one is best for your needs. Some of the most popular brands in the United States include Rheem, Bradford White, State, and A.O. Smith.

What gas water heater lasts the longest?

Gas water heaters generally have a life expectancy of 8 to 12 years. The factors that affect the life expectancy of a gas water heater are: proper maintenance, water quality, and the model that is used. Models from well-known brands may be able to last longer. Generally, tankless gas water heaters have the longest lifetime expectancy.

How long do gas tankless water heaters last?

Gas tankless water heaters can typically last around 15-20 years if properly maintained.

Which is better gas water heater or tankless water heater?

This depends on your specific needs. Tankless water heaters provide an unlimited supply of hot water on demand, but they are more expensive to install and maintain. Gas water heaters offer a more economical option but have limited hot water supply. If you have a large family with high hot water demands, then a tankless water heater might be the better option.

Which is the best gas geyser company?

The best gas geyser company depends on your individual needs and preferences. Some popular brands include Crompton, Bajaj, Racold, AO Smith, Alton, Khaitan, Havells, and Elegant.

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