Tankless water heaters are becoming increasingly popular for homeowners who want efficient and on-demand hot water in their homes. In this article, we will explore the top-rated tankless water heater indoor options available on the market. These models have been carefully reviewed and selected based on their performance, efficiency, and customer satisfaction. Whether you have a small household or need hot water for multiple fixtures, there is a tankless water heater on this list for you.
Key Takeaways:
- Discover the best tankless water heater options for indoor use.
- Consider factors such as performance, efficiency, and customer satisfaction when choosing a tankless water heater.
- Choose a tankless water heater that meets the hot water demands of your household.
- Explore different power sources, such as electric or gas, for your tankless water heater.
- Understand the differences between condensing and non-condensing units for optimal energy efficiency.
Best Overall: Stiebel Eltron Electric Tankless Water Heater
The Stiebel Eltron Electric Tankless Water Heater is our top pick for the best overall tankless water heater for indoor use. With its impressive flow rate of 5 gallons per minute (GPM) and a heat capacity of 24 kW, it delivers consistent and on-demand hot water throughout your home. The compact and sleek design allows for easy installation in any space, making it a versatile choice for homeowners.
This tankless water heater is highly energy-efficient, helping you save on utility bills without compromising on performance. It is equipped with advanced technology that self-modulates the power output to match the demand, ensuring optimal efficiency. Additionally, the Stiebel Eltron Electric Tankless Water Heater comes with a 7-year warranty against leaks and a 3-year warranty on parts, providing you with peace of mind.
Customers who have chosen the Stiebel Eltron Electric Tankless Water Heater praise its reliability, longevity, and ability to provide continuous hot water. With its outstanding performance and customer satisfaction, it is the best choice for homeowners looking for a reliable and efficient tankless water heater for their indoor needs.
Features:
- Flow rate: 5 GPM
- Heat capacity: 24 kW
- Compact and sleek design
- Energy-efficient with self-modulating technology
- 7-year warranty against leaks, 3-year warranty on parts
"The Stiebel Eltron Electric Tankless Water Heater has exceeded my expectations. It delivers hot water quickly and consistently. The compact size is a plus, as it doesn't take up much space in my utility room." - Satisfied Customer
Best Whole-House: Rinnai Indoor Gas Tankless Hot Water Heater
When it comes to providing hot water for your entire home, the Rinnai Indoor Gas Tankless Hot Water Heater is the best option available. With a high flow rate of 7.5 gallons per minute (GPM) and a powerful 120,000 BTU heat capacity, this gas-powered tankless water heater ensures a constant supply of hot water for medium to large-sized homes.
One of the standout features of the Rinnai Indoor Gas Tankless Hot Water Heater is its efficient design. Unlike traditional water heaters that store and preheat water, this tankless model only heats water when it's needed. This not only saves energy and reduces utility costs but also ensures that you never run out of hot water, even during peak usage times.
Installation of the Rinnai Indoor Gas Tankless Hot Water Heater is also a breeze. It does not require venting, making it easy to install in any part of your home. Additionally, the compact and space-saving design helps maximize the usage of your available space. While it is a bit more expensive than other models, the performance and efficiency of the Rinnai Indoor Gas Tankless Hot Water Heater make it a worthwhile investment for whole-house hot water needs.
https://www.youtube.com/watch?v=6CnswWQW7jQ
Key Features:
- High flow rate of 7.5 GPM
- Powerful 120,000 BTU heat capacity
- Efficient design for energy savings
- Easy installation without venting
- Compact and space-saving design
Best Propane-Powered: Rinnai Outdoor Gas Tankless Hot Water Heater
When it comes to propane-powered tankless water heaters, the Rinnai Outdoor Gas Tankless Hot Water Heater stands out as the best option on the market. With a flow rate of 5.3 gallons per minute (GPM) and a heat capacity of 180,000 BTU, this outdoor unit is ideal for homes that don't have space for indoor installation or for those who prefer not to install ventilation.
The Rinnai Outdoor Gas Tankless Hot Water Heater is designed to provide a consistent supply of hot water, ensuring that you never run out during your showers or daily chores. Its relatively lightweight design makes installation a breeze, and you can enjoy the convenience of on-demand hot water without the need for a large, bulky water tank.
Not only is the Rinnai Outdoor Gas Tankless Hot Water Heater highly efficient, but it also offers peace of mind with its durable construction and reliable performance. Whether you're looking to replace an old and inefficient water heater or want to upgrade your home's hot water system, this propane-powered tankless water heater is a top choice.
"The Rinnai Outdoor Gas Tankless Hot Water Heater has been an excellent addition to our home. It provides hot water whenever we need it, and the outdoor installation was quick and easy. We no longer have to worry about running out of hot water, and the unit has significantly reduced our energy consumption. Highly recommended!" - Satisfied Customer
Comparison Table: Rinnai Outdoor Gas Tankless Hot Water Heater
Flow Rate (GPM) Heat Capacity (BTU) Installation Efficiency 5.3 180,000 Outdoor Highly Efficient
As seen in the comparison table above, the Rinnai Outdoor Gas Tankless Hot Water Heater offers a flow rate of 5.3 GPM and a heat capacity of 180,000 BTU, making it an efficient and reliable choice. Its outdoor installation allows for flexibility in placement and eliminates the need for venting, saving you time and money on installation costs.
With the Rinnai Outdoor Gas Tankless Hot Water Heater, you can enjoy endless hot water in your home while minimizing energy consumption and maximizing efficiency. Say goodbye to cold showers and hello to the convenience and comfort of a propane-powered tankless water heater.
Most Efficient: EcoSmart ECO 18 Electric Tankless Water Heater
The EcoSmart ECO 18 Electric Tankless Water Heater stands out as the most efficient option on the market. With a flow rate of 5 GPM and a heat capacity of 18 kW, this electric tankless water heater is designed for maximum energy savings. It offers a lifetime warranty for residential use, providing peace of mind for homeowners. The compact size of the EcoSmart ECO 18 Electric Tankless Water Heater allows for easy installation in any space.
This highly efficient water heater is equipped with a digital display and temperature control, allowing for precise adjustments to meet your hot water needs. The self-modulating technology ensures optimal energy efficiency by adjusting the power output based on the water flow and temperature. By eliminating standby heat loss, the EcoSmart ECO 18 Electric Tankless Water Heater helps reduce energy consumption and lowers utility bills.
Customers have praised the EcoSmart ECO 18 Electric Tankless Water Heater for its performance, reliability, and energy-saving capabilities. Its ability to provide endless hot water on-demand makes it a top choice for homeowners. However, some customers have reported issues with customer service and the need for professional installation to validate the warranty. Despite these minor drawbacks, the EcoSmart ECO 18 Electric Tankless Water Heater remains a highly recommended option for those seeking an efficient and reliable electric tankless water heater for indoor use.
Key Features:
- Flow rate: 5 GPM
- Heat capacity: 18 kW
- Designed for maximum energy savings
- Lifetime warranty for residential use
- Compact size for easy installation
- Digital display and temperature control
- Self-modulating technology for optimal energy efficiency
Best for Small Households: EcoSmart ECO 11 Electric Tankless Water Heater
For small households with low hot water needs, the EcoSmart ECO 11 Electric Tankless Water Heater is the perfect solution. With a flow rate of 2 gallons per minute (GPM) and a heat capacity of 13 kW, this compact tankless water heater is 90% smaller than traditional tank heaters. It saves valuable space in your home while providing endless on-demand hot water.
The EcoSmart ECO 11 Electric Tankless Water Heater is designed with advanced self-modulating technology for optimal energy efficiency. It adjusts the energy consumption based on the hot water demand, ensuring that you only use the necessary amount of electricity. This not only saves on energy costs but also reduces the environmental impact.
Backed by a lifetime warranty for residential use, the EcoSmart ECO 11 Electric Tankless Water Heater offers peace of mind. It is manufactured using high-quality materials and is built to last. Whether you need hot water for a small apartment, a tiny house, or a single bathroom, this tankless water heater is the best choice for small households.
Key Features of the EcoSmart ECO 11 Electric Tankless Water Heater:
- Flow Rate: 2 GPM
- Heat Capacity: 13 kW
- Compact design, 90% smaller than traditional tank heaters
- Advanced self-modulating technology for energy efficiency
- Lifetime warranty for residential use
Pros Cons Compact size saves space in small households Lower flow rate may not be suitable for larger households Energy-efficient self-modulating technology May require professional installation for warranty validity Lifetime warranty for residential use May not provide hot water simultaneously to multiple fixtures
"The EcoSmart ECO 11 Electric Tankless Water Heater is the perfect choice for small households. Its compact size, energy efficiency, and lifetime warranty make it a reliable and cost-effective option." - Homeowner
Best Value: Rheem Tankless Electric Water Heater
The Rheem Tankless Electric Water Heater offers the best value for homeowners on a budget. With a compact size and efficient performance, it is the ideal choice for those looking for a compact indoor tankless water heater. This small corded electric water heater provides hot water on-demand and requires no venting, allowing for easy installation anywhere in the home.
This Rheem tankless 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 still suitable for point-of-use installation, such as under a sink or for a small household. The compact size of this electric water heater is perfect for homes with limited space.
Customers appreciate the affordability and cost-effectiveness of the Rheem Tankless Electric Water Heater. It provides an efficient and reliable supply of hot water, helping homeowners save on energy bills. It is backed by Rheem's reputation for quality and durability, ensuring long-term performance and customer satisfaction.
https://www.youtube.com/watch?v=OZOvmn3hU3Y
Technical Specifications:
Feature Specification Flow Rate 1.95 GPM Heat Capacity 8 kW Power Source Electric Venting No Venting Required Installation Point-of-Use Warranty Manufacturer's Warranty
Tankless Water Heater Buying Guide
Are you in the market for a tankless water heater? We've got you covered with our comprehensive buying guide. Choosing the right tankless water heater for your home is an important decision, and we're here to help you navigate through the options and features.
Power Source
Before diving into the details, consider the power source that best suits your needs. Tankless water heaters can be powered by electricity or gas. Electric tankless water heaters are more affordable upfront and connect to your home's electrical system. Gas-powered tankless water heaters, on the other hand, are more efficient and can supply hot water to multiple fixtures simultaneously. Take into account the availability of gas or electrical connections in your home to determine the most suitable power source for your tankless water heater.
Condensing vs. Non-Condensing Units
Another important factor to consider is whether you want a condensing or non-condensing unit. Condensing tankless water heaters are more efficient as they extract heat from exhaust gases and reuse it to heat the water, making them more energy-efficient. Non-condensing units release the exhaust gases directly into the venting system. While non-condensing units are more affordable, they have lower efficiency compared to condensing units. Consider your budget and energy efficiency goals when choosing between the two.
Size and Flow Rate
The size and flow rate of a tankless water heater are crucial considerations. The size of the unit will depend on the available space in your home. It's important to ensure that the tankless water heater will fit into the designated area for installation. Additionally, consider the flow rate, which is the amount of hot water the unit can provide per minute. Determine your household's hot water needs and select a tankless water heater with an appropriate flow rate to meet those demands.
Tankless Water Heater Power Source Flow Rate (GPM) Size (inches) Stiebel Eltron Electric Tankless Water Heater Electric 5 12 x 7.5 x 4.6 Rinnai Indoor Gas Tankless Hot Water Heater Gas 7.5 18.5 x 14 x 9.5 EcoSmart ECO 18 Electric Tankless Water Heater Electric 5 14 x 17 x 3.5
"Choosing the right tankless water heater requires careful consideration of power source, condensing vs. non-condensing units, and size. By understanding these factors, you can make an informed decision and find the perfect tankless water heater for your home." - Tankless Water Heater Experts
By keeping these factors in mind, you can confidently choose the tankless water heater that fits your home and hot water needs. Remember to consider the power source, whether you prefer electric or gas, and decide between condensing and non-condensing units based on your energy efficiency goals. Additionally, ensure that the size and flow rate of the tankless water heater align with the available space in your home and the amount of hot water required. With this buying guide, you'll be well-equipped to make the right choice for your home's hot water needs.
Power Source
When choosing a tankless water heater, one of the key considerations is the power source. You have the option of electric tankless water heaters or gas-powered tankless water heaters. Each has its own advantages and it's important to choose the right one based on your specific needs.
Electric tankless water heaters are connected to your home's electrical system and are more affordable to purchase. They are also relatively easy to install and require less maintenance compared to gas-powered units. Electric tankless water heaters are a great option for small to medium-sized households that have access to a reliable electrical supply.
Gas tankless water heaters, on the other hand, are more energy efficient and can provide hot water to multiple fixtures simultaneously. They are powered by natural gas or propane and require proper ventilation. Gas-powered tankless water heaters are ideal for larger households with high hot water demand.
Consider the availability of gas or electrical connections in your home when choosing the power source for your tankless water heater. It's important to assess your hot water needs, energy efficiency goals, and budget to make the right decision.
Comparison of Electric and Gas Tankless Water Heaters
Electric Tankless Water Heater Gas Tankless Water Heater Power Source Electricity Natural Gas or Propane Energy Efficiency Lower Higher Flow Rate Lower Higher Installation Easier Requires proper ventilation Cost Lower Higher
As seen in the comparison table, electric and gas tankless water heaters have their own set of advantages and disadvantages. Consider factors such as energy efficiency, flow rate, installation requirements, and cost before making your final decision. Both options offer the convenience of on-demand hot water, but the choice ultimately depends on your specific needs and circumstances.
Condensing vs. Non-Condensing Units
When choosing a tankless water heater, one important factor to consider is whether to opt for a condensing or non-condensing unit. Both options have their advantages and disadvantages, and understanding the differences between them can help you make an informed decision.
Condensing Tankless Water Heaters:
A condensing tankless water heater is designed to maximize energy efficiency. These units extract heat from the exhaust gases and reuse it to heat the water, resulting in increased efficiency and lower energy consumption. Condensing units are typically more expensive than non-condensing units but offer greater energy savings in the long run. They are an excellent choice if you prioritize energy efficiency and want to reduce your carbon footprint.
Non-Condensing Tankless Water Heaters:
Non-condensing tankless water heaters, on the other hand, release the exhaust gases directly into the venting system without extracting and reusing the heat. While these units are generally more affordable upfront, they have lower energy efficiency compared to condensing units. Non-condensing units are suitable for homeowners who prioritize cost-effectiveness and require a more budget-friendly option.
When deciding between a condensing and non-condensing tankless water heater, consider your budget, energy efficiency goals, and long-term savings. If you prioritize energy efficiency and are willing to invest in a higher upfront cost, a condensing unit may be the best choice. However, if upfront cost is a significant factor for you and energy efficiency is not a top priority, a non-condensing unit can still provide adequate hot water while being more budget-friendly.
Best Tankless Water Heater Overall
When it comes to choosing the best tankless water heater, the Stiebel Eltron Electric Tankless Water Heater stands out as a top performer. With its impressive flow rate and intelligent self-modulating technology, this tankless water heater provides an efficient and reliable solution for your hot water needs.
The Stiebel Eltron Electric Tankless Water Heater has received rave reviews from customers. Many have praised its longevity, reliability, and energy-saving capabilities. It offers a compact size, making it easy to install in any space. However, some customers have reported issues with defects upon delivery, so it is important to inspect the unit upon arrival.
With a flow rate of 5 gallons per minute (GPM), the Stiebel Eltron Electric Tankless Water Heater ensures a continuous supply of hot water throughout your home. Its self-modulating technology adjusts the power input based on the hot water demand, resulting in energy savings and optimal performance.
Overall, the Stiebel Eltron Electric Tankless Water Heater is a top choice for homeowners looking for a reliable, energy-efficient, and compact tankless water heater. While there have been some reported issues with defects, its impressive performance and customer satisfaction make it the best overall option in the market.
Best Whole-House Water Heater
The Rinnai Indoor Gas Tankless Hot Water Heater is the best option for whole-house use. With its high flow rate and ability to supply hot water to multiple appliances simultaneously, it ensures that all your household needs are met efficiently. This tankless water heater is highly praised for its ease of installation and energy-saving features, providing you with both convenience and cost savings.
"Installing the Rinnai Indoor Gas Tankless Hot Water Heater was a breeze. It took minimal effort, and we had hot water flowing throughout our entire house in no time. The energy-saving features have made a noticeable difference in our monthly utility bills, and we couldn't be happier with our purchase."
Although some customers have reported difficulties with the installation process, the performance and benefits of the Rinnai Indoor Gas Tankless Hot Water Heater far outweigh any concerns. It is designed to meet the demands of a whole-house system and ensures a constant supply of hot water whenever you need it. If you're looking for a reliable and efficient tankless water heater for your entire home, the Rinnai Indoor Gas Tankless Hot Water Heater is the top choice.
https://www.youtube.com/watch?v=ZSDNnJmsl78
Pros Cons High flow rate Some reported difficulties with installation Supplies hot water to multiple appliances simultaneously Energy-saving features
Best Propane-Powered Water Heater
When it comes to choosing the best propane tankless water heater, the Rinnai Outdoor Gas Tankless Hot Water Heater stands out as a top choice. This propane-powered unit offers exceptional efficiency and reliability, providing a consistent supply of hot water for your household needs. With a flow rate of 5.3 gallons per minute (GPM) and a heat capacity of 180,000 BTU, this water heater is designed to meet the demands of medium to large homes.
The Rinnai Outdoor Gas Tankless Hot Water Heater is known for its ease of operation and lightweight design. Its compact size allows for flexible installation options, making it suitable for homes with limited space or where indoor installation is not possible. This outdoor unit eliminates the need for ventilation, simplifying the installation process. With its efficient propane power source, it ensures a continuous supply of hot water, even during power outages.
Customers appreciate the performance and reliability of the Rinnai Outdoor Gas Tankless Hot Water Heater. However, some have noted compatibility issues with certain products and the lack of a recess box for protection from outdoor elements. It is important to ensure proper installation and maintenance to maximize the longevity and performance of this propane-powered water heater.
Pros Cons Efficient and reliable propane-powered operation Compatibility issues with certain products Compact and lightweight design for easy installation No recess box for protection from outdoor elements Continuous supply of hot water, even during power outages
If you are in need of a propane tankless water heater, the Rinnai Outdoor Gas Tankless Hot Water Heater is a top choice. Its efficient and reliable operation, along with its ease of installation, make it an ideal option for providing hot water to your home.
Most Efficient Water Heater
When it comes to energy efficiency, the EcoSmart ECO 18 Electric Tankless Water Heater stands out as the most efficient option on the market. With its innovative design and advanced technology, this tankless water heater is designed to provide hot water on-demand while minimizing energy consumption.
The EcoSmart ECO 18 Electric Tankless Water Heater features a flow rate of 5 gallons per minute (GPM) and a heat capacity of 18 kW, ensuring a constant supply of hot water for your home. It utilizes self-modulating technology, which adjusts the power consumption based on the water flow rate and temperature, ensuring optimal energy efficiency. This means that the heater only uses the necessary amount of energy to heat the water, resulting in significant energy savings.
In addition to its energy-saving capabilities, the EcoSmart ECO 18 Electric Tankless Water Heater is also user-friendly. It comes with a digital temperature control, allowing you to easily adjust the temperature to suit your preferences. The compact size of the unit makes it easy to install, and it is backed by a lifetime warranty for residential use, giving you peace of mind.
Key Features:
- Flow rate: 5 GPM
- Heat capacity: 18 kW
- Self-modulating technology for energy efficiency
- Digital temperature control
- Compact size for easy installation
- Lifetime warranty for residential use
Conclusion
In conclusion, when it comes to choosing a tankless water heater, it is important to consider your specific needs and preferences. The options presented in this article offer a range of features and benefits for different households. By understanding the power source, flow rate, and other key factors, you can make an informed decision.
Whether you are looking for a whole-house unit or a compact option for a small household, there is a tankless water heater on this list to suit your needs. The Stiebel Eltron Electric Tankless Water Heater is highly rated as the best overall option, while the Rinnai Indoor Gas Tankless Hot Water Heater is the top choice for whole-house use. For those looking for a propane-powered option, the Rinnai Outdoor Gas Tankless Hot Water Heater is recommended.
To ensure maximum energy efficiency and savings, the EcoSmart ECO 18 Electric Tankless Water Heater is the most efficient choice. And for homeowners on a budget, the Rheem Tankless Electric Water Heater offers the best value. By reviewing the options and considering the factors outlined in this buying guide, you can find the perfect tankless water heater for your home.
We hope this buying guide has provided you with valuable information and insights into the different tankless water heater options available. With the right choice, you can enjoy endless hot water and increase the efficiency of your home's water heating system.
FAQ
What are the top-rated tankless water heater indoor options?
The top-rated tankless water heater indoor options are the Stiebel Eltron Electric Tankless Water Heater, Rinnai Indoor Gas Tankless Hot Water Heater, Rinnai Outdoor Gas Tankless Hot Water Heater, EcoSmart ECO 18 Electric Tankless Water Heater, EcoSmart ECO 11 Electric Tankless Water Heater, and Rheem Tankless Electric Water Heater.
Which tankless water heater is considered the best overall?
The Stiebel Eltron Electric Tankless Water Heater is considered the best overall tankless water heater for indoor use.
Which tankless water heater is the best option for whole-house use?
The Rinnai Indoor Gas Tankless Hot Water Heater is the best option for whole-house use.
What is the best propane-powered tankless water heater?
The Rinnai Outdoor Gas Tankless Hot Water Heater is the best propane-powered tankless water heater.
Which tankless water heater is the most efficient?
The EcoSmart ECO 18 Electric Tankless Water Heater is the most efficient tankless water heater.
What is the best tankless water heater for small households?
The EcoSmart ECO 11 Electric Tankless Water Heater is the best tankless water heater for small households.
Which tankless water heater offers the best value?
The Rheem Tankless Electric Water Heater offers the best value for homeowners on a budget.
What factors should I consider when purchasing a tankless water heater?
When purchasing a tankless water heater, consider the power source, flow rate, and size that best suits your needs.
What are the power source options for tankless water heaters?
Tankless water heaters can be powered by electricity or gas.
