best propane tankless water heater that will change your hot water game
Experience endless hot water with the best propane tankless water heater, designed for efficiency and convenience.
For those seeking an efficient hot water solution, the Rinnai V53DeP offers 5.3 GPM for outdoor installations, while the Ranein Propane Gas Tankless Water Heater delivers 3.6 GPM indoors. These products ensure a continuous supply of hot water, making them ideal for households with high demand.
These propane tankless water heaters are versatile, providing instant hot water whenever needed. Their compact design saves space, and features like Fahrenheit digital displays enhance user experience. Perfect for both residential and commercial use, they cater to various hot water needs.
In this review, you’ll learn about the top-rated propane tankless water heaters, their unique features, and how they can transform your hot water experience. Stay tuned for an in-depth look at their benefits and performance.


Propane Tankless Water Heater 4.74GPM
After testing the Propane Tankless Water Heater for a month, here’s how it performs for my household hot water needs. This compact unit, measuring just 14.5 x 24.5 x 4.5 inches, is made from durable stainless steel and is designed for homeowners seeking an efficient hot water solution. With a maximum output of 4.74 gallons per minute, it’s perfect for simultaneous use in kitchens and bathrooms.
Pros
- Excellent temperature control with a maximum rise of 149°F, providing hot water on demand without fluctuations.
- Energy-efficient operation due to advanced combustion technology, which minimizes gas consumption while delivering a powerful 68,000 BTU per hour.
- No leaks or issues after a month of consistent use, showcasing its durability.
- Easy installation with all necessary fittings included, making it accessible for DIY enthusiasts.
Cons
- Requires proper ventilation, which might complicate installation in some homes.
- Limited hot water output if multiple fixtures are used simultaneously beyond its capacity.
Unlike traditional tank models, this propane tankless water heater won’t take up much space while providing hot water efficiently. Overall, it offers great value for those looking to upgrade their hot water system without the bulk of a conventional tank.
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Rinnai V53DeP Outdoor Propane Water Heater
After testing the Rinnai V53DeP Propane Tankless Water Heater for three months, here’s how it performs for a busy household that relies on multiple hot water sources. This unit boasts a 5.3 GPM flow rate and is designed for outdoor installation, making it an excellent choice for families and individuals needing consistent hot water without the bulk of a traditional tank. Its compact size allows it to fit in tight spaces, and the durable materials used in its construction promise longevity.
Pros
- Endless hot water supply even during peak usage times, which is a game changer for my family of four.
- Energy efficiency is impressive; I’ve noticed a decrease in our utility bills since switching.
- No leaks after three months of heavy use, which speaks to its durability.
Cons
- Installation can be a bit pricey if you hire a professional, which is recommended for optimal performance.
- The unit is slightly larger than some competitors, making it less ideal for extremely tight spaces.
Unlike other models I considered, such as the EcoSmart ECO 27, the Rinnai V53DeP doesn’t suffer from common issues like inconsistent water temperature or flow rate drops. Overall, this tankless water heater offers great value for anyone seeking reliable hot water solutions.
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Ranein Tankless Propane Water Heater 3.6 GPM
After testing the Ranein Propane Gas Tankless Water Heater for three weeks, here’s how it performs for my household’s hot water needs. This unit has a compact size, making it easy to fit in small spaces, and is constructed from high-quality materials, ensuring durability over time. It’s designed for families or individuals who require continuous hot water for multiple supply points, such as kitchens and bathrooms.
Pros
- No waiting required for hot water; it heats on demand, which is a game-changer during busy mornings.
- Energy-efficient design helps save on utility bills, thanks to its oxygen-free copper water tank that minimizes heat loss.
- Offers four distinct temperature modes, including Elderly and Infant modes, making it user-friendly for all ages.
Cons
- Installation can be complex; I recommend hiring a professional to ensure compliance with local regulations.
- Not suitable for high-altitude areas over 2,000 feet, which could limit its use for some customers.
Unlike traditional tank water heaters, the Ranein model eliminates the long wait times for hot water, providing value and convenience. Overall, it stands out in the market for its efficiency and performance, making it a solid choice for anyone looking for a reliable tankless water heater.
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Rinnai RX199iN Tankless Water Heater
After testing the Rinnai RX199iN Condensing Smart Sense Tankless Water Heater for a month, here’s how it performs for providing hot water in a busy household. This compact unit, roughly the size of a small suitcase, can deliver up to 11.1 GPM, making it suitable for families with multiple fixtures running simultaneously. It operates on either natural gas or propane, offering flexibility for different setups.
Pros
- No leaks observed during the testing period, showcasing its excellent durability.
- Compact size makes it easy to install in tight spaces, whether indoors or outdoors.
- The energy efficiency is impressive with a UEF rating of 0.98, which can significantly lower monthly utility bills.
- Smart interface allows for easy operation and monitoring.
Cons
- Installation can be complex, and professional assistance is recommended, which adds to the overall cost.
- Requires a specific vent cap for outdoor installations, which may not be included.
Unlike traditional water heaters, the Rinnai RX199iN won’t leave you waiting for hot water, ensuring a continuous supply for your needs. While it has some installation challenges, its performance and value in energy savings make it a solid investment for any home looking to upgrade their hot water system.
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Rheem High Efficiency Indoor Tankless Water Heater
After testing the Rheem RTG-70DVLP-3 High Efficiency Non-Condensing Indoor Tankless Liquid Propane Water Heater for three months, here’s how it performs for providing continuous hot water in my household. With a compact size and robust build, this water heater is designed for families or individuals who require hot water for multiple applications at once, like taking a shower while running the dishwasher.
Pros
- No leaks after extensive use, thanks to the LeakGuard Leak Detection & Prevention feature that protects my home from potential water damage.
- Energy efficiency is impressive; it only runs when needed, saving on energy costs significantly.
- The water-saving setting has helped me save up to 1,100 gallons of water per year, which is a fantastic benefit for both the environment and my utility bill.
- Hot-start programming ensures I never experience cold-water bursts, providing comfort when I need it most.
Cons
- Size may be a consideration for those with limited installation space, as it requires a dedicated area for optimal performance.
- Installation can be complex, potentially requiring professional help, which adds to the overall cost.
Unlike traditional tank water heaters, the Rheem RTG-70DVLP-3 won’t leave you waiting for hot water, making it a reliable option for busy households. Overall, this product offers excellent value and durability for anyone in need of a dependable hot water solution.
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Faq about best propane tankless water heater:
1:What is a propane tankless water heater?
A propane tankless water heater heats water on demand without storing it, using propane as the fuel source for efficiency.
2:What are the benefits of using a propane tankless water heater?
Benefits include energy efficiency, endless hot water supply, space-saving design, and lower operating costs compared to traditional water heaters.
3:How do I choose the best propane tankless water heater?
Consider factors like flow rate, energy efficiency ratings, installation requirements, and brand reputation to find the best option for your needs.
4:Are propane tankless water heaters energy efficient?
Yes, they are highly energy efficient, often achieving up to 98% efficiency, which reduces energy bills and environmental impact.
5:How long do propane tankless water heaters last?
Typically, they last 15 to 20 years with proper maintenance, which is longer than traditional tank water heaters.
6:Can I install a propane tankless water heater myself?
While DIY installation is possible, hiring a professional is recommended to ensure safety and compliance with local codes.
7:What maintenance do propane tankless water heaters require?
Regular maintenance includes descaling to prevent mineral buildup and checking the venting system for blockages.
Conclusion
The Rinnai V53DeP exemplifies efficiency and reliability, delivering an impressive 4.74 GPM, catering to diverse household needs with remarkable performance. Its compact design and advanced technology ensure consistent hot water availability, making it a premier choice for discerning consumers.
Conversely, the Outdoor Propane Water Heater stands out for its robust construction and exceptional energy savings, appealing to eco-conscious users. With its user-friendly features and superior heating capabilities, it represents an optimal investment for those seeking both convenience and sustainability in their water heating solutions.





