Tankless water heaters are a popular choice for homeowners looking for an energy-efficient and space-saving option to provide hot water instantly. In this article, we will explore the best point of use tankless water heater options on the market. We will discuss various types, such as electric and gas tankless water heaters, as well as highlight their features, flow rates, heat capacities, and warranties. Whether you need a compact under sink water heater or a whole-house solution, we have you covered. Let's dive in and find the perfect tankless water heater for your needs.
- Point of use tankless water heaters offer energy efficiency and space-saving benefits.
- There are two main types of point of use tankless water heaters: electric and gas-powered.
- The Stiebel Eltron Electric Tankless Water Heater is the best overall option.
- The Rinnai Indoor Gas Tankless Hot Water Heater is ideal for whole-house applications.
- The EcoSmart ECO 18 Electric Tankless Water Heater is the most efficient choice.
Benefits of Point of Use Tankless Water Heaters
Point of use tankless water heaters offer numerous benefits for homeowners. The first and most significant advantage is their energy efficiency. Unlike traditional tank water heaters that constantly heat and store water, point of use tankless water heaters only heat water as it is needed. This eliminates standby energy losses and can result in significant energy savings and lower utility bills. With a point of use tankless water heater, you'll have hot water on demand whenever you need it.
Another advantage of point of use tankless water heaters is their space-saving design. Unlike tank water heaters that require a large storage tank, tankless water heaters are compact and can be installed in various locations, such as under sinks or in closets. This makes them ideal for small homes or apartments where space is limited. Additionally, tankless water heaters provide instant hot water, eliminating the wait time for the water to heat up like with traditional tank water heaters.
Other benefits of point of use tankless water heaters include their long lifespan and reduced risk of water damage. Tankless water heaters have an average lifespan of 20 years, compared to the 10-15 year lifespan of tank water heaters. They also have a lower risk of leaks and water damage since there is no storage tank that can corrode or burst. Additionally, many point of use tankless water heaters come with advanced features such as temperature control and memory settings, allowing you to customize your hot water experience.
Table: Comparison of Benefits
Benefit Point of Use Tankless Water Heaters Traditional Tank Water Heaters Energy Efficiency High Low Space-saving Compact design Large storage tank Instant Hot Water Available on demand Requires heating time Lifespan 20+ years 10-15 years Water Damage Risk Low High (leaks, bursts)
As you can see, point of use tankless water heaters excel in energy efficiency, space-saving design, and instant hot water availability, making them a great choice for homeowners looking to upgrade their water heating system. With their long lifespan and reduced risk of water damage, they offer both practical and financial benefits in the long run.
Types of Point of Use Tankless Water Heaters
When it comes to choosing a point of use tankless water heater, there are two main types to consider: electric and gas-powered. Both options offer their own set of advantages and considerations, so it's important to understand the differences before making a decision.
Electric Tankless Water Heaters
Electric tankless water heaters are powered by electricity and are a popular choice for their affordability and versatility. They are generally more cost-effective to purchase and install compared to gas-powered units. Electric tankless water heaters are also compact and can be installed in various locations, such as under sinks or in closets, making them ideal for smaller spaces. They provide a constant supply of hot water, and their energy efficiency helps to reduce utility costs.
Gas Tankless Water Heaters
Gas tankless water heaters, on the other hand, are powered by natural gas or propane. They are known for their high flow rates and ability to provide hot water to multiple fixtures simultaneously. Gas tankless water heaters are often preferred for larger households or commercial applications where there is a higher demand for hot water. While they may have a higher upfront cost and require professional installation, gas-powered units offer long-term energy savings and can provide a continuous supply of hot water even during power outages.
When choosing between electric and gas tankless water heaters, consider factors such as your hot water needs, available energy sources, installation requirements, and budget. Each type has its own benefits and considerations, so it's important to weigh them against your specific requirements to find the best fit for your point of use hot water needs.
Type Advantages Considerations Electric Tankless Water Heaters - Affordable and versatile- Compact and space-saving- Easy installation in various locations- Energy-efficient operation - May have lower flow rates compared to gas units- Limited supply of hot water for simultaneous use Gas Tankless Water Heaters - High flow rates for multiple fixtures- Continuous supply of hot water- Long-term energy savings- Can operate during power outages - Higher upfront cost and installation requirements- Requires access to natural gas or propane
Best Overall Point of Use Tankless Water Heater: Stiebel Eltron Electric Tankless Water Heater
The Stiebel Eltron Electric Tankless Water Heater is the best overall point of use tankless water heater on the market. This high-quality unit offers a combination of impressive features, performance, and reliability that make it a top choice for homeowners. With a flow rate of 5 gallons per minute (GPM) and a heat capacity of 24 kW, it can provide hot water to meet the needs of small to medium-sized households.
The Stiebel Eltron Electric Tankless Water Heater is packed with advanced features to enhance your user experience. It has memory settings that allow you to easily adjust the temperature to your preferred level. The unit operates silently, ensuring a peaceful environment in your home. Additionally, it features an advanced flow control function that maintains a consistent water temperature, eliminating unpleasant fluctuations.
When it comes to durability, the Stiebel Eltron Electric Tankless Water Heater does not disappoint. It comes with a 7-year warranty against leaks, providing you with peace of mind and protection for your investment. Furthermore, its compact size allows for easy installation in various locations, making it a versatile option for any space.
Feature Specification Flow Rate 5 gallons per minute (GPM) Heat Capacity 24 kW Advanced Features Memory settings, silent operation, advanced flow control Warranty 7 years against leaks Installation Compact size for easy installation
When it comes to finding the best overall point of use tankless water heater, the Stiebel Eltron Electric Tankless Water Heater stands out from the competition. Its combination of high flow rate, advanced features, and a generous warranty make it the ideal choice for homeowners seeking a reliable and efficient solution for their hot water needs.
Best Whole-House Point of Use Tankless Water Heater: Rinnai Indoor Gas Tankless Hot Water Heater
The Rinnai Indoor Gas Tankless Hot Water Heater is our top recommendation for homeowners looking for a whole-house solution. With its high flow rate of 7.5 gallons per minute (GPM) and a heat capacity of 120,000 BTU, this gas-powered tankless water heater can meet the hot water demands of medium to large-sized homes. It is designed to provide hot water to multiple appliances simultaneously, ensuring you never run out of hot water no matter how many fixtures you have running at the same time.
What sets the Rinnai Indoor Gas Tankless Hot Water Heater apart is its enhanced scale detection feature, which helps minimize long-term damage caused by limescale buildup. This not only prolongs the lifespan of the unit but also ensures optimal performance and efficiency over time. The temperature lock feature is another standout feature, preventing accidental changes to the water temperature and ensuring a consistent and comfortable experience.
Please refer to the table below for a detailed comparison of the Rinnai Indoor Gas Tankless Hot Water Heater's specifications and features, including its flow rate, heat capacity, dimensions, and warranty. This comprehensive table will help you make an informed decision when choosing the best whole-house point of use tankless water heater for your home.
Flow Rate (GPM) Heat Capacity (BTU) Dimensions (inches) Warranty 7.5 120,000 9.6 x 14 x 24.3 10-Year Heat Exchanger5-Year Parts1-Year Labor
- Rinnai Indoor Gas Tankless Hot Water Heater is the best whole-house point of use tankless water heater
- High flow rate of 7.5 GPM and a heat capacity of 120,000 BTU
- Enhanced scale detection minimizes long-term damage
- Temperature lock feature ensures consistent water temperature
- Dimensions: 9.6 x 14 x 24.3 inches
- Warranty: 10-Year Heat Exchanger, 5-Year Parts, 1-Year Labor
When it comes to providing hot water for your entire home, the Rinnai Indoor Gas Tankless Hot Water Heater is the best choice. Its impressive flow rate, high heat capacity, and advanced features make it a reliable and efficient option for meeting your household's hot water needs. Whether you have a large family or simply want the convenience of hot water throughout your home, this whole-house tankless water heater from Rinnai has you covered.
Next, we will discuss the best propane-powered point of use tankless water heater, the Rinnai Outdoor Gas Tankless Hot Water Heater. This option is perfect for homeowners who prefer a propane-powered unit or have limited space for indoor installation. Stay tuned!
Best Propane-Powered Point of Use Tankless Water Heater: Rinnai Outdoor Gas Tankless Hot Water Heater
When it comes to propane-powered point of use tankless water heaters, the Rinnai Outdoor Gas Tankless Hot Water Heater stands out as the best option. This unit is designed specifically for outdoor installation, making it a perfect choice for homeowners who have limited indoor space or prefer to avoid the need for ventilation. With a flow rate of 5.3 gallons per minute (GPM) and a heat capacity of 180,000 BTU, this water heater is suitable for medium-sized households.
The Rinnai Outdoor Gas Tankless Hot Water Heater offers a lightweight and compact design, ensuring easy installation and flexibility in placement. It also provides the option to use Wi-Fi technology for remote control, allowing homeowners to adjust settings conveniently. Approved by the South Coast Air Quality Management District, this tankless water heater complies with air pollution regulations, providing peace of mind for environmentally conscious consumers.
Overall, the Rinnai Outdoor Gas Tankless Hot Water Heater is a reliable and efficient choice for those seeking a propane-powered point of use tankless water heater. Its outdoor installation capability, high flow rate, and advanced features make it a top contender in this category.
Key Features of the Rinnai Outdoor Gas Tankless Hot Water Heater:
- Propane-powered point of use tankless water heater
- Flow rate: 5.3 GPM
- Heat capacity: 180,000 BTU
- Designed for outdoor installation
- Lightweight and compact
- Wi-Fi technology for remote control
- Approved by the South Coast Air Quality Management District
Most Efficient Point of Use Tankless Water Heater: EcoSmart ECO 18 Electric Tankless Water Heater
The EcoSmart ECO 18 Electric Tankless Water Heater is the most efficient option on our list. With a flow rate of 5 GPM and a heat capacity of 18 kW, this electric tankless water heater is designed for small to medium-sized households. It offers significant energy savings, potentially reducing water-heating costs by up to 60%. Its point-of-use installation ensures minimal wait time for hot water, and the wall-mounted design saves valuable floor space. The EcoSmart ECO 18 Electric Tankless Water Heater is not only efficient but also durable, with a lifetime warranty for residential use.
To better understand the efficiency of the EcoSmart ECO 18 Electric Tankless Water Heater, let's compare it to other options:
Tankless Water Heater Flow Rate (GPM) Heat Capacity (kW) Energy Efficiency EcoSmart ECO 18 Electric Tankless Water Heater 5 18 Up to 60% energy savings Rheem Tankless Electric Water Heater 1.95 8 Energy-efficientStiebel Eltron Electric Tankless Water Heater 5 24 Energy-efficient
Note: The data provided in the table is for comparison purposes and may vary depending on specific models and usage conditions.
When comparing the EcoSmart ECO 18 Electric Tankless Water Heater to other options, it stands out for its higher flow rate and heat capacity. This allows it to deliver hot water to multiple fixtures simultaneously, making it suitable for households with greater hot water demands. Additionally, its energy efficiency and potential for significant cost savings make it an attractive choice for homeowners seeking both performance and sustainability.
Best Point of Use Tankless Water Heater for Small Households: EcoSmart ECO 11 Electric Tankless Water Heater
For small households, the EcoSmart ECO 11 Electric Tankless Water Heater is the perfect choice. With a low flow rate of 2 gallons per minute (GPM) and a heat capacity of 13 kilowatts (kW), this compact electric tankless water heater is specifically designed to provide hot water for one to two people. Its small size allows for easy installation in tight spaces, making it ideal for apartments, condos, or small homes.
The EcoSmart ECO 11 Electric Tankless Water Heater is 90% smaller than traditional tank heaters, freeing up valuable floor space. Its advanced self-modulating technology ensures that only the precise amount of energy needed to heat the water is used, maximizing efficiency. Although the warranty does not cover labor or accidental damages, this tankless water heater has proven to be reliable and efficient.
With its focused design and energy-saving features, the EcoSmart ECO 11 Electric Tankless Water Heater offers an affordable solution for small households in need of a reliable and efficient hot water system. Experience instant hot water on demand with this top-rated point of use tankless water heater.
Flow Rate Heat Capacity Size Energy Efficiency Warranty 2 GPM 13 kW Compact 90% No labor or accidental damages coverage
Best Value Point of Use Tankless Water Heater: Rheem Tankless Electric Water Heater
When it comes to finding the best value point of use tankless water heater, the Rheem Tankless Electric Water Heater stands out as an excellent choice. With its affordable price and reliable performance, it offers an efficient solution for small households with low hot water demands.
The Rheem Tankless Electric Water Heater has a flow rate of 1.95 gallons per minute (GPM) and a heat capacity of 8 kilowatts (kW). While it may have a lower flow rate compared to other models, it is designed to meet the hot water needs of small households without compromising performance. Plus, it uses minimal electricity, resulting in additional savings on gas costs.
Installation is a breeze with this compact electric tankless water heater, and it does not require any venting. This flexibility allows you to install it anywhere inside your home, providing hot water on demand right at the point of use. Although some customers have reported longevity issues, the majority of users find this tankless water heater to be effective and efficient, quickly heating their water when needed.
Key Features of the Rheem Tankless Electric Water Heater:
- Flow rate: 1.95 GPM
- Heat capacity: 8 kW
- Compact design for easy installation
- No venting required
- Provides hot water on demand
- Affordable price
- Minimal electricity usage
- Flexible installation options
- Potential longevity issues
- Lower flow rate compared to other models
Despite the lower flow rate, the Rheem Tankless Electric Water Heater offers great value for small households that require a reliable and affordable solution for their hot water needs. With its compact design and minimal electricity usage, it provides hot water on demand without breaking the bank. Consider the Rheem Tankless Electric Water Heater as your best value point of use tankless water heater option.
Tankless Water Heater Buying Guide: Factors to Consider
- Power Source: One of the first factors to consider when choosing a tankless water heater is the power source. There are two main options: electric and gas. Electric tankless water heaters are typically more affordable and easier to install, making them a popular choice for smaller households. Gas tankless water heaters, on the other hand, offer higher flow rates and are better suited for larger households or homes with higher hot water demands. Consider the availability and cost of the power source in your area when making your decision.
- Flow Rate: The flow rate of a tankless water heater determines how much hot water it can deliver at a time. It is essential to calculate the flow rate needed based on the number of fixtures and appliances that will be running simultaneously in your home. This will ensure that you choose a tankless water heater that can meet your hot water demands without any issues.
- Size and Capacity: Tankless water heaters come in different sizes and capacities. Consider the available space in your home for installation and choose a unit that fits your needs. Additionally, consider the heat capacity of the tankless water heater to ensure it can provide enough hot water for your household's needs.
- Warranty: It is important to consider the warranty offered by the manufacturer when choosing a tankless water heater. Look for a unit that comes with a warranty that covers both parts and labor, as this will provide you with peace of mind in case any issues arise.
- Maintenance: Tankless water heaters require regular maintenance to ensure optimal performance and longevity. Consider the maintenance requirements of the unit you are considering and whether you are willing to perform the necessary maintenance tasks or if you would prefer to hire a professional for regular servicing.
By taking into account these factors, you can make an informed decision and choose the right tankless water heater for your home. Consider the power source, flow rate, size and capacity, warranty, and maintenance requirements when comparing different models. Investing in a high-quality tankless water heater will provide you with energy-efficient hot water for years to come.
Table: Comparison of Tankless Water Heater Options
Tankless Water Heater Power Source Flow Rate (GPM) Heat Capacity Warranty Maintenance Stiebel Eltron Electric Tankless Water Heater Electric 5 24 kW 7 years Regular servicing recommended Rinnai Indoor Gas Tankless Hot Water Heater Gas 7.5 120,000 BTU Manufacturer-dependent Regular servicing recommended EcoSmart ECO 18 Electric Tankless Water Heater Electric 5 18 kW Lifetime warranty for residential use Regular servicing recommended EcoSmart ECO 11 Electric Tankless Water Heater Electric 2 13 kW Limited warranty Regular servicing recommended
Power Source for Tankless Water Heaters
Tankless water heaters can be powered by either electricity or gas, providing options for homeowners based on their preferences and available resources. Electric tankless water heaters are connected to the home's electrical system and use heating elements to heat the water as it passes through the unit. They are known for their efficiency and are often more affordable upfront compared to gas-powered models. Electric tankless water heaters are also compact and can be installed in various locations, making them versatile and suitable for different household needs.
On the other hand, gas-powered tankless water heaters use natural gas or propane to heat the water. These units are known for their high flow rates and the ability to heat large amounts of water simultaneously, making them ideal for larger households or commercial applications. While gas tankless water heaters generally have a higher initial cost, they can offer long-term energy savings and lower operating costs. It's important to consider the availability, cost, and energy efficiency of the power source when choosing a tankless water heater.
Comparison of Electric and Gas Tankless Water Heaters
Aspect Electric Tankless Water Heaters Gas Tankless Water Heaters Power Source Electricity Natural Gas or Propane Energy Efficiency High High Flow Rate Lower Higher Installation Flexibility Easy to install in various locations Requires proper ventilation and professional installation Operating Cost Lower upfront cost, but higher electricity costs Higher upfront cost, but lower operating costs
Choosing the Right Power Source
When deciding between electric and gas tankless water heaters, consider factors such as availability, cost, and energy efficiency. Electric models are more widely available and may be more affordable upfront. They are also easy to install and suitable for a range of applications. Gas models, although more expensive initially, can offer long-term energy savings and higher flow rates. However, they require professional installation and proper ventilation. Evaluate your specific needs, budget, and energy requirements to determine whether an electric or gas tankless water heater is the best choice for your home.
Condensing vs. Non-Condensing Tankless Water Heaters
When considering a tankless water heater, one important factor to consider is whether to choose a condensing or non-condensing model. The distinction between the two lies in how they handle the exhaust gases and their energy efficiency. Let's explore the differences and advantages of each.
Condensing Tankless Water Heaters
A condensing tankless water heater utilizes advanced technology to achieve higher levels of energy efficiency. These models feature a secondary heat exchanger that extracts heat from the exhaust gases before they are vented outside. By capturing and utilizing this waste heat, condensing tankless water heaters can achieve energy efficiencies of up to 98%. This means they waste very little energy and can help reduce energy costs over time. The initial cost of condensing units is generally higher than non-condensing models, but the long-term energy savings can offset this investment.
Non-Condensing Tankless Water Heaters
Non-condensing tankless water heaters, on the other hand, do not utilize a secondary heat exchanger. Instead, they vent the exhaust gases directly into the atmosphere. While these models are generally more affordable upfront, they tend to be less energy-efficient compared to condensing units. Non-condensing tankless water heaters typically have energy efficiencies ranging from 80% to 85%. However, they still offer significant energy savings compared to traditional tank water heaters.
Choosing the Right Option
When deciding between a condensing and non-condensing tankless water heater, it's essential to consider your specific needs and budget. If energy efficiency and long-term cost savings are your primary concerns, a condensing unit may be the better choice. However, if upfront cost is more important and you can compromise somewhat on energy efficiency, a non-condensing unit may be suitable. Ultimately, both options offer advantages and can provide continuous hot water on demand while being more energy-efficient than traditional tank water heaters.
Condensing Tankless Water Heaters Non-Condensing Tankless Water Heaters Utilize a secondary heat exchanger to extract heat from exhaust gases Directly vent exhaust gases into the atmosphere Energy efficiency of up to 98% Energy efficiency ranging from 80% to 85% Higher initial cost, but long-term energy savings Lower upfront cost Ideal for those prioritizing energy efficiency and long-term cost savings Suitable for those prioritizing upfront cost savings
Tankless Water Heater Installation and Maintenance
Installing a tankless water heater requires professional assistance to ensure proper installation and compliance with local codes and regulations. It is not recommended to attempt installation without the proper knowledge and expertise, as it can lead to safety hazards and potential damage to the unit. A professional plumber or water heater specialist can assess your hot water needs, recommend the right tankless water heater for your specific requirements, and handle the installation process efficiently and effectively.
During the installation, the professional will consider factors such as the appropriate location for the tankless water heater, the gas or electrical connections, and any necessary venting or ventilation requirements. They will ensure that the unit is properly mounted, secured, and connected to the water supply and any necessary control systems. By enlisting the services of a professional, you can have peace of mind knowing that your tankless water heater is installed correctly and will provide reliable hot water for years to come.
Maintenance is also crucial for keeping your tankless water heater in optimal working condition. It is recommended to have the unit serviced by a professional at least once a year. During a maintenance visit, the professional will inspect the unit for any signs of wear or potential issues, clean any mineral deposits or debris that may have accumulated, and perform any necessary adjustments or repairs. Regular maintenance can help prevent problems, extend the lifespan of the unit, and ensure that it continues to operate efficiently.
Installing a tankless water heater requires professional assistance to ensure proper installation. A professional plumber or water heater specialist can assess your needs, recommend the right unit, and handle the installation process. Maintenance is also important and should be scheduled at least once a year. Regular maintenance by a professional can help prevent issues and ensure optimal performance.
Top Tankless Water Heater Brands
When it comes to choosing a tankless water heater, it's important to select a reliable and reputable brand. Here are some of the top tankless water heater brands in the market:
Rinnai is a well-known brand that offers high-quality gas tankless water heaters. Their products are known for their durability, efficiency, and advanced features. Rinnai tankless water heaters provide reliable hot water on demand, making them a popular choice for homeowners.
Rheem offers a wide range of both electric and gas tankless water heaters. They are known for their superior performance and energy efficiency. Rheem tankless water heaters are designed to provide continuous hot water while reducing energy consumption, making them an excellent option for any household.
Stiebel Eltron specializes in compact and efficient electric tankless water heaters. Their products are known for their innovative design, reliability, and energy-saving capabilities. Stiebel Eltron tankless water heaters deliver instant hot water while taking up minimal space, making them an ideal choice for small homes or apartmen