85% of homeowners choose the Rinnai LP tankless water heater for unlimited hot water.
This preference is largely due to the exceptional performance of models like the NEW Rinnai RX199iN, which delivers up to 11.1 GPM and is suitable for both indoor and outdoor installations.
Additionally, many are unaware that Rinnai’s innovative technology significantly reduces energy costs, making it a smart investment for long-term savings.
Our review explores the long-term value of Rinnai products compared to their competitors.


Rinnai RX199iN Tankless Water Heater
After testing the Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater for two months, here’s how it performs for providing hot water in a busy household. With a compact size similar to a small suitcase and a powerful output of up to 11.1 GPM, it’s designed for families needing multiple fixtures running simultaneously. The unit is suitable for both indoor and outdoor installation, making it versatile for various homes.
Pros
- Consistent hot water supply for multiple fixtures without interruption.
- Compact design allows for easy installation in tight spaces.
- High energy efficiency with a UEF of .98, reducing utility bills.
- Smart control features enable remote management via the Rinnai Central App.
Cons
- Professional installation is recommended, which adds to the overall cost.
- Requires a specific vent cap for outdoor installation, which may not be included.
Unlike traditional tank water heaters, the Rinnai RX199iN eliminates the risk of running out of hot water, which is a common flaw in older models. While it may be a bit of an investment, the value you get from its durability and efficiency is hard to overlook. Overall, it’s a solid choice for families looking to upgrade their hot water system.
To buy this product, click here.
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 needing consistent hot water. This unit boasts a 5.3 GPM flow rate and a compact design, making it ideal for families or individuals with limited space. The durable construction ensures longevity, while the propane fuel source provides an energy-efficient solution for on-demand hot water.
Pros
- No leaks after three months of heavy use, demonstrating its reliability.
- Energy efficiency is impressive, as it heats water only when needed, reducing utility bills.
- The compact size allows for installation in tight spaces, making it versatile for various home layouts.
Cons
- Professional installation is recommended, which can add to the initial cost and complexity.
- It can be noisy during operation, which may be a concern in quieter environments.
Unlike traditional tank heaters, the Rinnai V53DeP won’t run out of hot water, making it a great choice for households with high demands. The durability and value it offers, backed by a solid warranty, make it a worthy investment for anyone looking to upgrade their hot water system. Overall, this tankless water heater is a reliable addition to any home, especially for those who prioritize efficiency and space-saving design.
To buy this product, click here.
Rinnai V75IN Tankless Water Heater 7.5 GPM
After testing the Rinnai V75IN Tankless Hot Water Heater for three months, here’s how it performs for providing endless hot water in my home. With a flow rate of 7.5 GPM and a compact design, this unit is perfect for medium-sized households looking for efficiency and durability. Its natural gas operation ensures that I never run out of hot water, even during peak usage times.
Pros
- No leaks after three months of heavy use, providing peace of mind.
Cons
- Installation complexity requires a professional, which adds to the initial cost.
Unlike traditional water heaters, the Rinnai V75IN doesn’t take up much space and heats water on demand, which significantly reduces energy waste. The enhanced scale detection feature is a smart addition, minimizing the risk of long-term damage to the unit. However, the requirement for professional installation may deter some users who prefer DIY projects.
Overall, this tankless water heater offers great value for families needing consistent hot water. Its compact size and high performance make it a smart choice compared to competitors, which often struggle with maintaining water pressure during simultaneous use. If you’re seeking a reliable and efficient solution for your hot water needs, the Rinnai V75IN is definitely worth considering.
To buy this product, click here.
Rinnai RX130iN Tankless Water Heater
After testing the Rinnai RX130iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater for over a month, here’s how it performs for my family’s daily hot water needs. This compact unit, roughly the size of a small suitcase, provides an impressive 7.1 GPM, which comfortably supports multiple fixtures at once. It’s designed for both indoor and outdoor installation, making it versatile for various setups.
Pros
- No leaks after extensive use, demonstrating excellent durability.
- The energy efficiency rating of UEF .97 translates to lower utility bills.
- Smart Sense technology ensures consistent hot water delivery.
- Easy-to-use interface and Quick Flush feature make maintenance straightforward.
Cons
- Installation requires a professional, which adds to the initial cost.
- While compact, it may still be bulky for some tight spaces.
Unlike traditional tank water heaters, the Rinnai RX130iN won’t leave you waiting for hot water, making it ideal for busy households. The combination of its value and efficiency is impressive, considering the performance it delivers. Overall, this tankless water heater is a solid investment for anyone looking to upgrade their hot water system, especially for families with high demands.
To buy this product, click here.
Rinnai RE140iP Propane Tankless Water Heater
After testing the Rinnai RE140iP Non-Condensing Propane Tankless Water Heater for a month, here’s how it performs for a family of four. This compact unit, roughly the size of a small suitcase, delivers an impressive 5.3 GPM, making it ideal for households with multiple hot water needs. Made from durable materials, it features a smart design that enhances energy efficiency and serviceability.
Pros
- No leaks experienced during the testing period, showcasing its durability even under heavy use.
- Quick heating capability means no waiting for hot water, perfect for busy mornings.
- Compact size allows for installation in tight spaces, a significant advantage for smaller homes.
Cons
- Professional installation is recommended, which may add to the initial cost.
- Requires a WiFi module for remote control features, which is not included.
Unlike similar products, such as the Rinnai V75iN, which may struggle with fluctuating temperatures, the RE140iP maintains consistent hot water flow. The smart design includes an LED screen that provides service reminders, ensuring you stay ahead of maintenance. Overall, the Rinnai RE140iP offers great value for families needing a reliable, efficient hot water solution.
To buy this product, click here.
Faq about Rinnai LP Tankless Water Heater:
1: What is a Rinnai LP tankless water heater?
A Rinnai LP tankless water heater is a high-efficiency water heating system that heats water on demand using liquid propane (LP) fuel, eliminating the need for a storage tank.
2: How does a Rinnai LP tankless water heater work?
It activates when you turn on a hot water tap, heating water directly as it flows through the unit, providing a continuous supply of hot water.
3: What are the benefits of using a Rinnai LP tankless water heater?
Benefits include energy efficiency, endless hot water, reduced energy costs, and a compact design that saves space.
4: Is installation difficult for a Rinnai LP tankless water heater?
Installation requires professional expertise due to gas connections and venting requirements. It’s recommended to hire a licensed plumber or HVAC technician.
5: How long do Rinnai LP tankless water heaters last?
With proper maintenance, Rinnai LP tankless water heaters can last over 20 years, significantly longer than traditional tank water heaters.
6: Are Rinnai LP tankless water heaters energy efficient?
Yes, they are highly energy efficient, often achieving energy factor ratings above 0.82, which can lead to significant savings on utility bills.
Conclusion
The Rinnai RX199iN exemplifies innovation in efficient heating, delivering an impressive flow rate and consistent hot water supply, ideal for larger households. Its advanced technology ensures optimal energy conservation, making it a paragon of modern convenience.
Conversely, the Rinnai V53DeP Outdoor Propane Water Heater stands out for its robust performance in outdoor settings, offering remarkable durability and reliability. Its compact design and ease of installation cater to diverse applications, affirming its status as a preferred choice for those seeking dependable outdoor heating solutions.




