When it comes to providing a constant supply of hot water to your home, traditional tank-style water heaters can be inefficient and wasteful. Not only do they take up valuable space, but they also continuously heat water even when it’s not being used, resulting in higher energy bills. In contrast, tankless water heaters offer a more efficient and cost-effective solution, providing hot water only when you need it. By switching to a tankless system, homeowners can enjoy significant energy savings and a longer-lasting appliance.
For those looking to make the switch, finding the right tankless water heater can be overwhelming, given the numerous options available on the market. To help you make an informed decision, we’ve put together a comprehensive guide to the best natural gas tankless water heaters, highlighting their key features, benefits, and drawbacks. Whether you’re a homeowner looking to upgrade your current system or a builder seeking to install a reliable and efficient water heater in a new construction project, this guide will walk you through the process of selecting the perfect tankless water heater for your needs, ensuring you enjoy a steady supply of hot water while minimizing your energy consumption and costs.
We will review the best natural gas tankless water heaters later in this article. But before that, take a look at some relevant products on Amazon:
No products found.
Introduction to Natural Gas Tankless Water Heaters
Natural gas tankless water heaters are a type of water heating system that uses natural gas to heat water on demand. They are designed to provide a continuous supply of hot water, without the need for a storage tank. This makes them a popular choice for many homeowners, as they are energy efficient and can save space in the home.
One of the main benefits of natural gas tankless water heaters is their ability to provide hot water instantly, without the need for a tank to store heated water. This means that homeowners can enjoy a constant supply of hot water, without the risk of running out. Additionally, natural gas tankless water heaters are highly energy efficient, as they only heat water when it is needed, rather than constantly heating a tank of water.
Natural gas tankless water heaters are also a cost-effective option for many homeowners. They are generally more expensive to purchase upfront than traditional tank-style water heaters, but they can save homeowners money in the long run by reducing their energy bills. They are also designed to last for many years, with some models having a lifespan of 20 years or more. This makes them a great investment for homeowners who are looking for a reliable and efficient water heating system.
When shopping for the best natural gas tankless water heaters, there are several factors to consider. Homeowners should look for a model that is energy efficient, has a high flow rate, and is designed to meet their specific hot water needs. By choosing the right natural gas tankless water heater, homeowners can enjoy a constant supply of hot water, while also saving money on their energy bills and reducing their environmental impact. Whether you are building a new home or replacing an old water heater, considering the best natural gas tankless water heaters is a great option.
The Best Natural Gas Tankless Water Heaters
Rheem RTG-64DVLN 64DVLN Natural Gas Tankless Water Heater
The Rheem RTG-64DVLN 64DVLN Natural Gas Tankless Water Heater is a top-of-the-line model that offers high performance and efficiency. It has a flow rate of up to 6.4 gallons per minute and a thermal efficiency of 94%, making it an excellent choice for large households. The unit is also equipped with advanced features such as a digital display and a remote control, allowing for easy temperature adjustment and monitoring. Additionally, the Rheem RTG-64DVLN 64DVLN is designed with safety in mind, featuring a built-in overheat protection system and a freeze protection system.
One of the standout features of the Rheem RTG-64DVLN 64DVLN is its compact design, making it ideal for installation in small spaces. The unit is also relatively lightweight, weighing in at just over 50 pounds, making it easy to handle and install. Furthermore, the Rheem RTG-64DVLN 64DVLN is backed by a comprehensive warranty, including a 12-year warranty on the heat exchanger and a 5-year warranty on parts. Overall, the Rheem RTG-64DVLN 64DVLN Natural Gas Tankless Water Heater is an excellent choice for anyone looking for a reliable, efficient, and feature-rich tankless water heater.
Rinnai V65iN V65iN Natural Gas Tankless Water Heater
The Rinnai V65iN V65iN Natural Gas Tankless Water Heater is a high-end model that offers exceptional performance and efficiency. It has a flow rate of up to 6.5 gallons per minute and a thermal efficiency of 95%, making it an excellent choice for large households with high hot water demands. The unit is also equipped with advanced features such as a digital display and a remote control, allowing for easy temperature adjustment and monitoring. Additionally, the Rinnai V65iN V65iN is designed with safety in mind, featuring a built-in overheat protection system and a freeze protection system.
One of the standout features of the Rinnai V65iN V65iN is its advanced technology, which allows for precise temperature control and optimal energy efficiency. The unit is also equipped with a built-in scale detection system, which helps to prevent mineral buildup and maintain optimal performance. Furthermore, the Rinnai V65iN V65iN is backed by a comprehensive warranty, including a 12-year warranty on the heat exchanger and a 5-year warranty on parts. Overall, the Rinnai V65iN V65iN Natural Gas Tankless Water Heater is an excellent choice for anyone looking for a high-performance, efficient, and feature-rich tankless water heater.
Navien NPE-240A NPE-240A Natural Gas Tankless Water Heater
The Navien NPE-240A NPE-240A Natural Gas Tankless Water Heater is a high-efficiency model that offers exceptional performance and reliability. It has a flow rate of up to 11.2 gallons per minute and a thermal efficiency of 95%, making it an excellent choice for large households with high hot water demands. The unit is also equipped with advanced features such as a digital display and a remote control, allowing for easy temperature adjustment and monitoring. Additionally, the Navien NPE-240A NPE-240A is designed with safety in mind, featuring a built-in overheat protection system and a freeze protection system.
One of the standout features of the Navien NPE-240A NPE-240A is its advanced condensing technology, which allows for optimal energy efficiency and reduced emissions. The unit is also equipped with a built-in scale detection system, which helps to prevent mineral buildup and maintain optimal performance. Furthermore, the Navien NPE-240A NPE-240A is backed by a comprehensive warranty, including a 15-year warranty on the heat exchanger and a 5-year warranty on parts. Overall, the Navien NPE-240A NPE-240A Natural Gas Tankless Water Heater is an excellent choice for anyone looking for a high-efficiency, reliable, and feature-rich tankless water heater.
Takagi T-H3-DV-N T-H3-DV-N Natural Gas Tankless Water Heater
The Takagi T-H3-DV-N T-H3-DV-N Natural Gas Tankless Water Heater is a high-performance model that offers exceptional efficiency and reliability. It has a flow rate of up to 10 gallons per minute and a thermal efficiency of 94%, making it an excellent choice for large households with high hot water demands. The unit is also equipped with advanced features such as a digital display and a remote control, allowing for easy temperature adjustment and monitoring. Additionally, the Takagi T-H3-DV-N T-H3-DV-N is designed with safety in mind, featuring a built-in overheat protection system and a freeze protection system.
One of the standout features of the Takagi T-H3-DV-N T-H3-DV-N is its compact design, making it ideal for installation in small spaces. The unit is also relatively lightweight, weighing in at just over 40 pounds, making it easy to handle and install. Furthermore, the Takagi T-H3-DV-N T-H3-DV-N is backed by a comprehensive warranty, including a 15-year warranty on the heat exchanger and a 5-year warranty on parts. Overall, the Takagi T-H3-DV-N T-H3-DV-N Natural Gas Tankless Water Heater is an excellent choice for anyone looking for a high-performance, efficient, and feature-rich tankless water heater.
Noritz NRC66-DV-NG NRC66-DV-NG Natural Gas Tankless Water Heater
The Noritz NRC66-DV-NG NRC66-DV-NG Natural Gas Tankless Water Heater is a high-efficiency model that offers exceptional performance and reliability. It has a flow rate of up to 6.6 gallons per minute and a thermal efficiency of 93%, making it an excellent choice for medium-sized households with moderate hot water demands. The unit is also equipped with advanced features such as a digital display and a remote control, allowing for easy temperature adjustment and monitoring. Additionally, the Noritz NRC66-DV-NG NRC66-DV-NG is designed with safety in mind, featuring a built-in overheat protection system and a freeze protection system.
One of the standout features of the Noritz NRC66-DV-NG NRC66-DV-NG is its advanced technology, which allows for precise temperature control and optimal energy efficiency. The unit is also equipped with a built-in scale detection system, which helps to prevent mineral buildup and maintain optimal performance. Furthermore, the Noritz NRC66-DV-NG NRC66-DV-NG is backed by a comprehensive warranty, including a 12-year warranty on the heat exchanger and a 5-year warranty on parts. Overall, the Noritz NRC66-DV-NG NRC66-DV-NG Natural Gas Tankless Water Heater is an excellent choice for anyone looking for a high-efficiency, reliable, and feature-rich tankless water heater.
Why People Need to Buy Natural Gas Tankless Water Heaters
The need for natural gas tankless water heaters has been on the rise in recent years, and for good reason. Traditional tank-style water heaters have been the norm for decades, but they have several drawbacks that make them less desirable. For one, they take up a lot of space, which can be a problem for homeowners with limited room in their basements or utility closets. Additionally, tank-style water heaters are often less efficient than their tankless counterparts, which can lead to higher energy bills and a larger carbon footprint.
Another advantage of natural gas tankless water heaters is that they provide a continuous supply of hot water. With traditional tank-style water heaters, the hot water is limited to the amount that can be stored in the tank. Once the hot water is used up, the homeowner must wait for the tank to refill and reheat, which can be a frustrating experience, especially for large families or households with multiple bathrooms. Natural gas tankless water heaters, on the other hand, heat water only as it is needed, providing a constant flow of hot water without the need for a storage tank.
In addition to their space-saving design and continuous hot water supply, natural gas tankless water heaters are also more energy-efficient than traditional tank-style water heaters. They only heat water when it is needed, which reduces standby heat loss and lowers energy bills. This makes them a great option for homeowners who are looking to reduce their energy consumption and save money on their utility bills. When shopping for a new water heater, it’s a good idea to look for the best natural gas tankless water heaters, which are designed to provide reliable and efficient performance for years to come.
Overall, natural gas tankless water heaters offer a number of benefits that make them a great choice for homeowners. They are energy-efficient, provide a continuous supply of hot water, and take up less space than traditional tank-style water heaters. They are also a great option for homeowners who are looking to reduce their energy consumption and save money on their utility bills. With their advanced technology and reliable performance, it’s no wonder that natural gas tankless water heaters are becoming increasingly popular among homeowners who want a convenient, efficient, and cost-effective way to heat their water.
Benefits of Natural Gas Tankless Water Heaters
Natural gas tankless water heaters offer several benefits over traditional tank-style water heaters. One of the main advantages is their ability to provide a continuous supply of hot water. Unlike tank-style water heaters, which can run out of hot water after a certain period of use, tankless water heaters heat water as it flows through the unit, providing a constant supply of hot water. This makes them ideal for large families or households with high hot water demands.
Another benefit of natural gas tankless water heaters is their energy efficiency. Because they only heat water as it is needed, they can be up to 30% more energy-efficient than traditional tank-style water heaters. This can lead to significant savings on energy bills over time. Additionally, tankless water heaters have a longer lifespan than traditional water heaters, typically lasting 15-20 years or more with proper maintenance.
Natural gas tankless water heaters also offer a number of safety benefits. Because they do not store hot water, they are less likely to leak or rupture, which can be a significant safety hazard. They also have a number of built-in safety features, such as temperature and pressure relief valves, which can help prevent accidents.
Overall, natural gas tankless water heaters offer a number of benefits that make them a popular choice for many homeowners. Their ability to provide a continuous supply of hot water, energy efficiency, and safety features make them an attractive option for those looking to upgrade their water heating system.
Types of Natural Gas Tankless Water Heaters
There are several types of natural gas tankless water heaters available on the market. One of the main types is the non-condensing tankless water heater. These units are the most common type and are known for their simplicity and reliability. They work by heating water as it flows through the unit, using a gas burner to heat the water.
Another type of natural gas tankless water heater is the condensing tankless water heater. These units are more energy-efficient than non-condensing units and are known for their ability to capture and reuse heat that would otherwise be lost. They are more expensive than non-condensing units, but can provide significant energy savings over time.
There are also outdoor and indoor natural gas tankless water heaters available. Outdoor units are designed to be installed outside the home and are typically less expensive than indoor units. However, they may require additional installation costs, such as venting and piping. Indoor units, on the other hand, are designed to be installed inside the home and are typically more expensive than outdoor units.
When choosing a natural gas tankless water heater, it is essential to consider the specific needs of your household. Different types of units are better suited for different applications, so it is crucial to do your research and choose a unit that meets your needs.
Installation and Maintenance of Natural Gas Tankless Water Heaters
Installing a natural gas tankless water heater can be a complex process, and it is recommended that it be done by a professional plumber. The installation process typically involves connecting the unit to a gas line, water supply lines, and venting system. It is essential to ensure that the unit is installed correctly to ensure safe and efficient operation.
Regular maintenance is also crucial to ensure the longevity and efficiency of a natural gas tankless water heater. This includes tasks such as cleaning the unit, checking the venting system, and inspecting the gas line. It is also essential to have the unit serviced annually by a professional plumber to ensure that it is operating correctly.
One of the most critical maintenance tasks for a natural gas tankless water heater is descaling. Over time, mineral deposits can build up inside the unit, reducing its efficiency and potentially causing damage. Descaling involves removing these mineral deposits and can be done using a descaling solution or by hiring a professional plumber.
Overall, proper installation and maintenance are essential to ensure the safe and efficient operation of a natural gas tankless water heater. By following the manufacturer’s instructions and having the unit serviced regularly, you can help extend its lifespan and ensure that it continues to provide a reliable supply of hot water.
Common Issues with Natural Gas Tankless Water Heaters
Despite their many benefits, natural gas tankless water heaters can be prone to certain issues. One of the most common problems is a lack of hot water. This can be caused by a number of factors, including a faulty temperature sensor, a clogged water filter, or a problem with the gas supply.
Another common issue with natural gas tankless water heaters is noise. Some units can be quite loud, especially when they are first turned on. This can be caused by a number of factors, including a faulty fan or a problem with the venting system. In some cases, the noise may be due to a more serious issue, such as a faulty heat exchanger or a problem with the combustion system.
In some cases, natural gas tankless water heaters can also be prone to leaks. This can be caused by a number of factors, including a faulty connection or a problem with the unit’s seals. Leaks can be a significant safety hazard, as they can lead to a buildup of carbon monoxide in the home.
To troubleshoot common issues with a natural gas tankless water heater, it is essential to consult the manufacturer’s instructions and follow their recommended troubleshooting procedures. In some cases, it may be necessary to hire a professional plumber to diagnose and repair the issue. By addressing problems promptly, you can help extend the lifespan of your natural gas tankless water heater and ensure that it continues to provide a reliable supply of hot water.
Buying Guide for Best Natural Gas Tankless Water Heaters
When it comes to choosing a new water heater, there are many options available on the market. Natural gas tankless water heaters have become increasingly popular in recent years due to their energy efficiency and ability to provide a continuous supply of hot water. With so many different models and brands available, it can be difficult to know where to start when looking for the best natural gas tankless water heaters. In this buying guide, we will discuss the key factors to consider when making your decision.
Energy Efficiency
Energy efficiency is one of the most important factors to consider when buying a natural gas tankless water heater. These heaters work by heating water only as it is needed, which can help to reduce energy consumption and lower your utility bills. Look for a heater with a high Energy Factor (EF) rating, which measures the efficiency of the heater. A higher EF rating indicates a more efficient heater. When shopping for a natural gas tankless water heater, be sure to check the EF rating to ensure that you are getting an energy-efficient model.
In addition to the EF rating, you should also consider the type of heat exchanger used in the heater. A heat exchanger is the component that transfers heat from the burner to the water. There are two main types of heat exchangers: copper and stainless steel. Copper heat exchangers are generally more efficient and durable than stainless steel heat exchangers, but they can be more expensive. Stainless steel heat exchangers, on the other hand, are more resistant to corrosion and can be a good option for areas with hard water.
Flow Rate
The flow rate of a natural gas tankless water heater is another important factor to consider. The flow rate measures the amount of hot water that the heater can produce per minute. A higher flow rate means that the heater can provide hot water to more fixtures at the same time. If you have a large household with multiple bathrooms, you will need a heater with a higher flow rate to ensure that everyone has access to hot water. Look for a heater with a flow rate that meets your needs, and consider the number of fixtures you will be using at the same time.
When shopping for a natural gas tankless water heater, you should also consider the temperature rise of the heater. The temperature rise measures the difference between the incoming water temperature and the outgoing water temperature. A higher temperature rise means that the heater can produce hotter water, which can be beneficial for households that use a lot of hot water. However, a higher temperature rise can also increase the risk of scalding, so be sure to consider this when choosing a heater.
Installation Requirements
The installation requirements of a natural gas tankless water heater are another key factor to consider. These heaters require a direct vent system to remove combustion gases and a gas line to supply fuel to the burner. You will also need to ensure that the heater is installed in a well-ventilated area to prevent the buildup of combustion gases. If you are not comfortable with the installation process, you may want to consider hiring a professional plumber to install the heater.
In addition to the installation requirements, you should also consider the maintenance needs of the heater. Natural gas tankless water heaters require regular maintenance to ensure that they continue to run efficiently and safely. This includes cleaning the filter and checking the burner and heat exchanger for signs of wear. You should also consider the cost of replacement parts and the availability of maintenance services in your area.
Cost and Budget
The cost and budget of a natural gas tankless water heater are important factors to consider. These heaters can be more expensive than traditional tank-style water heaters, but they can also provide long-term cost savings through reduced energy consumption. When shopping for a natural gas tankless water heater, be sure to consider the upfront cost of the heater, as well as the cost of installation and maintenance. You should also consider the cost of any necessary upgrades to your gas line or venting system.
In addition to the upfront cost, you should also consider the operating costs of the heater. Natural gas tankless water heaters can be more expensive to operate than traditional tank-style water heaters, especially if you have a large household with high hot water demands. However, they can also provide long-term cost savings through reduced energy consumption. Be sure to consider the operating costs of the heater and factor them into your budget to ensure that you can afford the ongoing expenses.
Safety Features
The safety features of a natural gas tankless water heater are a critical factor to consider. These heaters can be hazardous if not installed or maintained properly, and they require certain safety features to prevent accidents. Look for a heater with a built-in temperature and pressure relief valve, which can help to prevent scalding and explosions. You should also consider a heater with a flame failure device, which can shut off the gas supply in the event of a flame failure.
In addition to these safety features, you should also consider the certifications and compliance of the heater. Look for a heater that meets the safety standards of organizations such as the National Sanitation Foundation (NSF) and the American Society of Mechanical Engineers (ASME). You should also consider a heater that is certified by a reputable third-party testing organization, such as Underwriters Laboratories (UL). These certifications can provide peace of mind and ensure that the heater meets certain safety standards.
Warranty and Support
The warranty and support of a natural gas tankless water heater are final factors to consider. A good warranty can provide peace of mind and protect your investment in the event of a defect or malfunction. Look for a heater with a comprehensive warranty that covers parts and labor for a minimum of 5 years. You should also consider a heater with a dedicated customer support team, which can provide assistance with installation, maintenance, and repair. When shopping for a natural gas tankless water heater, be sure to research the manufacturer’s reputation for customer support and warranty service to ensure that you are getting a reliable and trustworthy product.
FAQs
What are the benefits of using a natural gas tankless water heater?
Natural gas tankless water heaters offer several benefits, including energy efficiency, space savings, and a continuous supply of hot water. They heat water only when it is needed, which reduces energy consumption and saves money on utility bills. Additionally, they are compact and wall-mounted, making them ideal for small homes, apartments, or areas with limited space.
In comparison to traditional tank-style water heaters, natural gas tankless water heaters have a longer lifespan and require less maintenance. They also provide a constant flow of hot water, eliminating the need to wait for a tank to refill. This makes them a great option for large families or households with high hot water demands. Furthermore, they are environmentally friendly, producing fewer emissions and minimizing waste.
How do I choose the right size natural gas tankless water heater for my home?
Choosing the right size natural gas tankless water heater depends on several factors, including the number of people in your household, the number of bathrooms, and your peak hot water demand. You should consider the flow rate, measured in gallons per minute (GPM), and the temperature rise, which is the difference between the incoming water temperature and the desired output temperature. A higher flow rate and temperature rise require a more powerful unit.
To determine the right size, you can use online calculators or consult with a professional plumber. They can help you assess your hot water needs and recommend a suitable model. It’s essential to choose a unit that meets your peak demand, as an undersized unit may not provide enough hot water, while an oversized unit can be wasteful and expensive. Consider factors like climate, insulation, and water usage patterns to ensure you select the most suitable natural gas tankless water heater for your home.
What are the key features to look for when buying a natural gas tankless water heater?
When buying a natural gas tankless water heater, there are several key features to look for, including the unit’s flow rate, energy efficiency, and durability. Look for models with high energy factor (EF) ratings, which indicate high efficiency. You should also consider the unit’s materials, such as stainless steel or copper, which can affect its lifespan and performance. Additionally, check for features like temperature control, remote access, and safety features like overheat protection.
Other important features to consider include the unit’s venting system, which should be compatible with your home’s venting configuration. You should also look for models with low NOx emissions, which are more environmentally friendly. Some natural gas tankless water heaters come with advanced features like smart sensors, which can detect issues and alert you to potential problems. Consider your specific needs and priorities when evaluating these features to ensure you find the best model for your home.
Can I install a natural gas tankless water heater myself?
While it’s possible to install a natural gas tankless water heater yourself, it’s not recommended unless you have extensive experience with plumbing and gas line installation. Natural gas tankless water heaters require specialized knowledge and equipment to install safely and correctly. Improper installation can lead to safety hazards, reduced performance, and voided warranties.
It’s highly recommended to hire a professional plumber who is certified to install natural gas tankless water heaters. They will ensure that the unit is installed correctly, meet local building codes, and comply with safety standards. A professional installation will also provide you with a valid warranty and ensure that the unit operates efficiently and safely. Additionally, many manufacturers require professional installation to validate the warranty, so it’s essential to follow their guidelines.
How much does a natural gas tankless water heater cost?
The cost of a natural gas tankless water heater can vary widely, depending on the model, brand, and features. On average, a basic model can cost between $500 to $1,000, while high-end models with advanced features can cost $2,000 to $3,000 or more. Additionally, you should consider the cost of installation, which can range from $500 to $2,000, depending on the complexity of the installation and the plumber’s rates.
It’s essential to consider the long-term savings and benefits when evaluating the cost of a natural gas tankless water heater. While the initial cost may be higher than a traditional tank-style water heater, the energy efficiency and longer lifespan of a tankless model can lead to significant savings over time. You may also be eligible for rebates or incentives from your utility company or government, which can help offset the upfront cost. Be sure to factor in these costs and benefits when making your decision.
Are natural gas tankless water heaters safe?
Natural gas tankless water heaters are generally safe when installed and maintained correctly. They have several safety features, such as overheat protection, flame failure detection, and automatic shut-off, which prevent accidents and ensure safe operation. However, as with any gas-powered appliance, there are potential risks associated with natural gas tankless water heaters, such as gas leaks, carbon monoxide poisoning, and fires.
To ensure safe operation, it’s essential to follow the manufacturer’s instructions, have the unit installed by a professional, and perform regular maintenance. This includes checking the venting system, cleaning the unit, and inspecting the gas lines for leaks. You should also ensure that the area around the unit is well-ventilated and free from combustible materials. By taking these precautions and following safety guidelines, you can enjoy the benefits of a natural gas tankless water heater while minimizing the risks.
How long do natural gas tankless water heaters last?
Natural gas tankless water heaters can last for 15 to 20 years or more, depending on the quality of the unit, maintenance, and usage. They have a longer lifespan than traditional tank-style water heaters, which typically last for 10 to 15 years. The longevity of a natural gas tankless water heater is due to its design, which reduces the risk of corrosion and mineral buildup.
To extend the lifespan of your natural gas tankless water heater, it’s essential to perform regular maintenance, such as cleaning the unit, checking the venting system, and inspecting the gas lines. You should also have the unit serviced annually by a professional plumber to ensure it operates efficiently and safely. By following the manufacturer’s guidelines and performing regular maintenance, you can enjoy the benefits of a natural gas tankless water heater for many years to come. Additionally, some manufacturers offer extended warranties, which can provide added protection and peace of mind.
Verdict
In conclusion, the world of water heating has undergone a significant transformation with the advent of tankless technology. Gone are the days of cumbersome and inefficient traditional water heaters. With the numerous benefits of tankless water heaters, including endless hot water supply, energy efficiency, and space-saving design, it’s no wonder why many homeowners are making the switch. Whether you’re looking to upgrade your existing water heater or install a new one, it’s essential to consider the best options available in the market.
When it comes to selecting the best natural gas tankless water heaters, there are several factors to consider, including flow rate, temperature control, and safety features. By investing in a high-quality tankless water heater, you can enjoy significant cost savings, reduced environmental impact, and unparalleled convenience. With the right tankless water heater, you can say goodbye to cold showers and hello to a steady supply of hot water whenever you need it. By choosing one of the top-rated models, you can experience the comfort and efficiency that comes with having a reliable and efficient water heating system in your home.