7 Best Propane Tankless Water Heaters: Reviews & Buying Guide

Propane tankless water heaters are gaining popularity in modern homes due to their numerous advantages over traditional tank-based water heaters. These innovative devices offer energy efficiency, unlimited hot water supply, and a space-saving design. 

Unlike electric or gas-powered tankless models, propane tankless water heaters provide a reliable and efficient source of hot water. 

In this article, we will explore the seven best propane tankless water heaters available on the market today. 

By understanding their features, pros, and cons, you can make an informed decision and find the perfect propane tankless water heater for your home and needs. But first,

Understanding Propane Tankless Water Heaters

Propane tankless water heaters work by heating water on demand as it flows through the unit. They consist of key components such as a heat exchanger, burner, and controls. When hot water is needed, cold water enters the unit, and the heat exchanger rapidly heats it using propane fuel. This process ensures that hot water is available whenever you need it, without the need for a storage tank.

One of the significant benefits of propane tankless water heaters is their on-demand heating capability. Unlike traditional tank-based water heaters that constantly heat and store water, propane tankless models only heat water when it’s needed. This on-demand heating reduces energy consumption and lowers utility bills. 

These all features are the same across all tankless models with different fuel types. So why propane fuel of all?

Propane is a clean-burning fuel, which means it produces fewer emissions compared to other fuel sources. Propane is also widely available, making it a convenient choice for homeowners.

Side note: Check this list out if you are looking for off-grid propane tankless model.

Factors to Consider When Choosing a Propane Tankless Water Heater

Before purchasing a propane tankless water heater, there are several important factors to consider to ensure optimal performance and cost savings. Here are some key considerations:

1. Flow Rate: The flow rate of a propane tankless water heater indicates the volume of hot water it can provide per minute. Consider your household’s hot water needs, such as the number of bathrooms and appliances that require hot water simultaneously, to determine the ideal flow rate for your home.
2. Temperature Control: Look for a propane tankless water heater that offers precise temperature control. This allows you to set the desired water temperature and ensures consistent hot water delivery.
3. Energy Efficiency Ratings: Energy efficiency is an essential aspect of any appliance. Look for propane tankless water heaters with high energy efficiency ratings, as they consume less fuel and help reduce energy costs.
4. Available Space: Consider the available space for installation. Propane tankless water heaters come in various sizes, so ensure you have enough room for the unit and proper ventilation.
5. Size Selection: Choosing the right size propane tankless water heater is crucial for meeting your household’s hot water demands. Evaluate your usage patterns and the number of people in your home to determine the appropriate size.

Reviews of the Top 7 Propane Tankless Water Heaters

In this section, we will review the top seven propane tankless water heaters available on the market:

1. Noritz EZ111 EZ Series

Highlights

• Flow Rate: 11.1 GPM
• Energy Efficiency Rating: 0.96
• Warranty: 25 years

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The Noritz EZ111 EZ Series propane tankless water heater is a top choice for homeowners seeking high efficiency and a compact design. With its advanced features and precise temperature control, this model ensures a consistent supply of hot water while minimizing energy consumption. The EZ111 EZ Series has received positive user reviews for its reliability and performance.

Featuring a flow rate of 11.1 gallons per minute (GPM) and an energy efficiency rating of 0.96, this tankless water heater is designed to meet the hot water demands of medium to large households. 

Its compact size allows for flexible installation options, making it an ideal choice for homes with limited space. The Noritz EZ111 EZ Series also offers convenient digital controls, allowing users to adjust the water temperature with ease.

Prospective buyers should consider the Noritz EZ111 EZ Series for its high efficiency, compact design, and precise temperature control. It stands out among competitors due to its exceptional performance and durability. 

2. Rheem Performance Platinum 9.5 GPM Liquid Propane

Highlights

• Flow Rate: 9 GPM
• Energy Efficiency Rating: 0.95
• Warranty: 10 years

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Next, we have the Rheem Performance Platinum which offers an impressive flow rate and advanced technology. It’s a popular choice among homeowners. This model combines high performance and energy efficiency to deliver a continuous supply of hot water. Users appreciate its reliability and the consistent temperature it provides.

With a flow rate of more than 9 GPM in mild weather, the Rheem Performance Platinum ensures a sufficient supply of hot water for medium to large households. This model too is equipped with advanced technology that allows for precise temperature control and minimizes fluctuations during usage. The energy-efficient model will help you with reducing your utility bills while enjoying the benefits of endless hot water.

The Rheem Performance Platinum 9.5 GPM stands out from the competition due to its high flow rate, energy efficiency, and advanced technology. 

It is a reliable and durable option for those seeking a top-of-the-line propane tankless water heater.

3. Rinnai RU199iP RU Series

Highlights

• Flow Rate: 11 GPM
• Energy Efficiency Rating: 0.95
• Warranty: 12 years

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At number three, we have Rinnai RU199iP RU Series, a liquid propane tankless water heater that offers smart technology and Wi-Fi connectivity, making it a modern and efficient choice for homeowners. 

With its high efficiency and convenient temperature settings, this model provides a reliable and convenient hot water solution. Users have praised its performance and the convenience of controlling the unit through their smartphones.

Equipped with smart technology and Wi-Fi connectivity, the Rinnai RU199iP allows users to control and monitor the unit remotely. Its high-efficiency rating and 11 GPM flow rate make it suitable for large households. 

This model also incorporates advanced safety features, ensuring peace of mind for homeowners. Users have reported satisfaction with the consistent hot water supply and the unit’s overall performance.

The Rinnai RU199iP RU Model Series stands out for its smart technology, Wi-Fi connectivity, and high efficiency. It offers a seamless user experience and exceptional performance.

4. Rinnai RL75eP RL Model Series

Highlights

• Flow Rate: 7 GPM
• Energy Efficiency Rating: 0.95
• Warranty: 12 years

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Another Rinnai model in this list, the RL75eP RL is a model for smaller household needs. The propane-fired tankless water heater is renowned for its compact size and multiple venting options. This model is suitable for both indoor and outdoor installations, providing flexibility for homeowners. 

With its energy efficiency and reliable performance, it offers a consistent supply of hot water for medium to large households.

Featuring a compact design, the Rinnai RL75eP can be easily installed in tight spaces, such as closets or utility rooms. It offers multiple venting options, allowing homeowners to choose the most suitable venting method for their setup. With its high efficiency and 7 GPM flow rate, this model delivers hot water on-demand, meeting the needs of busy households. Users appreciate its reliability and ease of installation.

The Rinnai RL75eP RL Model Series is an excellent choice for those seeking a compact and versatile propane tankless water heater. Its energy efficiency and multiple venting options set it apart from the competition. To learn more about this model and read a detailed review, click here.

5. Eccotemp FVI12-LP

Highlights

• Flow Rate: 3.6 GPM
• Energy Efficiency Rating: 0.93
• Warranty: 5 years

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The Eccotemp FVI12-LP propane tankless water heater is a popular choice among homeowners due to its easy installation, digital temperature display, and compact design. With its reliable performance and efficient operation, this model offers a convenient and space-saving solution for on-demand hot water.

FVI12-LP features a straightforward installation process, making it an excellent option for DIY enthusiasts. Its digital temperature display allows users to easily monitor and adjust the water temperature according to their preferences. 

Despite its compact size, this model provides a reliable flow of hot water, ensuring a comfortable experience for users.

This propane tankless water heater stands out for its ease of installation, digital temperature display, and compact design. Homeowners looking for a user-friendly and efficient unit will find the Eccotemp FVI12-LP to be a reliable choice. To access a detailed review and more information about this model, click here.

6. Camplux CM264 LP

Highlights

• Flow Rate: 2.6 GPM
• Energy Efficiency Rating: 0.94
• Warranty: 1 year

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Camplux CM264 comes second last in our list of the best propane tankless water heater. The tankless model offers portability and low water pressure startup, making it an ideal choice for outdoor activities, camping, or cabins. 

With its safety features and efficient performance, this model provides a reliable source of hot water in remote locations.

The Camplux CM264 is designed for portability, allowing users to enjoy hot water wherever they go. It can operate with low water pressure, making it suitable for areas with limited water flow. This model incorporates safety features such as flame failure detection and anti-freezing protection, ensuring user safety and peace of mind.

For those seeking a portable and versatile propane tankless water heater, the Camplux CM264 is an excellent option. Its safety features, low water pressure startup, and portability make it a reliable choice for outdoor enthusiasts.

To learn more about this model and read a detailed review, click here.

7. Rinnai V65IP

Highlights

• Flow Rate: 6 GPM
• Energy Efficiency Rating: 0.94
• Warranty: 12 years

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Finally, Rinnai V65IP comes last on our list. (It’s not rating which will mean it’s the worst in this list. ) The propane tankless water heater offers outdoor installation capability, energy efficiency, and precise temperature control. Its equipped with advanced hardware and reliable performance and is a popular choice among homeowners seeking an efficient and space-saving hot water solution.

The Rinnai V65IP is designed for outdoor installation, freeing up space inside the house. Its energy efficiency ensures optimal performance while reducing utility costs. This model features precise temperature control, allowing users to set their desired hot water temperature with accuracy. Users appreciate the consistent hot water supply and the unit’s overall efficiency.

To access a detailed review and more information about this model, .

Buying Tips and Considerations

Here are some additional buying tips to help you make the best decision when purchasing a propane tankless water heater:

1. Professional Installation and Maintenance: For optimal performance and longevity, it is recommended to have your propane tankless water heater professionally installed. Regular maintenance by a qualified technician is also crucial to ensure efficient operation.
2. Warranty and After-Sales Support: Consider the warranty coverage and after-sales support offered by reputable manufacturers. A good warranty can provide peace of mind and protection against potential issues.
3. Safety Precautions: Familiarize yourself with the safety precautions associated with propane tankless water heaters. Follow the manufacturer’s guidelines and ensure proper ventilation to prevent the accumulation of harmful gases.

Frequently Asked Questions (FAQs)

What are the installation requirements for a propane tankless water heater? 

Propane tankless water heaters require proper ventilation and gas supply. It is essential to follow the manufacturer’s guidelines and local building codes for safe and compliant installation.

How do I maintain a propane tankless water heater? 

Regular maintenance includes flushing the unit to remove mineral deposits, inspecting and cleaning the burner, and checking for leaks. Refer to the manufacturer’s maintenance instructions for specific guidelines.

Can a propane tankless water heater save me money?

Yes, propane tankless water heaters can help save money on energy costs. Their on-demand heating eliminates the standby heat loss associated with traditional tank-based water heaters.

Are propane tankless water heaters safe? 

When installed and used correctly, propane tankless water heaters are safe. However, it is essential to follow safety precautions, such as proper ventilation and regular maintenance, to ensure safe operation.

Conclusion

Propane tankless water heaters offer numerous advantages over traditional tank-based water heaters, including energy efficiency, unlimited hot water supply, and space-saving design. By considering factors such as flow rate, temperature control, energy efficiency ratings, and available space, you can choose the right propane tankless water heater for your home.