Over 70% of homeowners choose the Navien tankless water heater for energy efficiency.
That’s why the NEW Rinnai RX199iN stands out with its 11.1 GPM flow rate, providing ample hot water for any household need.
Few know its smart technology optimizes energy use, significantly lowering utility bills while ensuring consistent water temperature.
Our review covers long-term value vs. rivals, helping you make an informed decision for your home heating needs.


Rinnai RX199iN Tankless Water Heater
Rinnai RX199iN Condensing Smart Sense Tankless Water Heater: 12” long, ABS plastic, 2-year warranty.
Benefits
- Provides up to 11.1 GPM, supporting 7 fixtures simultaneously without running out of hot water.
Drawbacks
- Requires professional installation for optimal setup and performance.
The Rinnai RX199iN is an innovative tankless water heater that stands out for its compact design and high efficiency. Its ability to deliver hot water on demand makes it a reliable choice for households with multiple bathrooms or fixtures. The unit operates using either natural gas or propane, providing flexibility depending on your energy source. The Smart Sense gas control system ensures efficient operation, minimizing energy waste.
One of the key features is its UEF .98 energy efficiency rating, which can lead to significant savings on energy bills over time. The Quick Flush feature simplifies maintenance, allowing for easy cleaning to maintain peak performance. However, potential buyers should be aware that installation is best left to professionals, as improper setup can lead to inefficiencies or safety issues.
This model is a practical pick for small spaces, given its suitcase-like size, making it easy to fit in tight areas. Overall, the Rinnai RX199iN is an excellent investment for those looking for a reliable, efficient, and space-saving hot water solution.
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FOGATTI Outdoor Natural Gas Tankless Water Heater
FOGATTI Natural Gas Tankless Water Heater Outdoor – Max 8.1 GPM 180,000 BTU, CSA Certified Compact Design On Demand Instant Hot Water Heater – Instagas Comfort 180S Series: 26.2” x 17.1” x 7.1”, Oxygen-free copper, 2-year warranty.
Benefits
- Delivers continuous hot water with a flow rate of up to 8.1 GPM.
Drawbacks
- Requires professional installation for optimal performance.
This tankless water heater is designed for outdoor durability, featuring a remote control panel for indoor operation. It effectively prevents smoke backflow, ensuring safety and longevity. The advanced temperature control system maintains water temperature within ±1℉, providing consistent comfort throughout the year.
Installation is simplified due to its compact design, and it operates efficiently even at low water pressure (15-150 PSI). The unit’s high-efficiency components ensure reliable performance, making it suitable for multiple outlets simultaneously.
Despite its many advantages, the FOGATTI water heater does not include dishwasher-safe parts, which may be a downside for some users. However, with a 2-year warranty and a dedicated customer support team, you can trust in its quality and performance.
A practical pick for small spaces, this unit is ideal for those seeking an efficient and reliable hot water solution without the bulk of traditional tanks.
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PROCURU Universal Tankless Water Heater Valve Kit
PROCURU Universal Tankless Water Heater Service Valve Kit with Pressure Relief Valve: 12” long, lead-free brass, 2-year warranty.
Benefits
- Universal fit for flushing tankless water heaters; compatible with brands like Rheem, Rinnai, Navien, Noritz, Takagi, and others.
- Includes a 3/4″ FNPT Pressure Relief Valve (PRV) for added safety.
- Professional grade, approved for both indoor and outdoor use.
- Lead-free material ensures safety for potable drinking water.
Drawbacks
- No additional fittings included, which may require separate purchases for some installations.
This valve kit is a practical pick for homeowners and professionals looking to maintain or install tankless water heaters efficiently. Its compatibility with multiple brands makes it versatile, while the inclusion of a pressure relief valve enhances safety during operation. The lead-free brass construction meets health standards, ensuring safe use in any water system. However, users should note that it does not come with additional fittings, which could be a minor inconvenience for some installations. Overall, this kit provides a reliable solution for those needing service valves for tankless systems.
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EcoSmart Tankless Propane Water Heater 2.11GPM
Tankless Water Heater Propane: 11.42” x 3.94” x 14.57”, ABS plastic, 2-year warranty.
Benefits
- Outputs 2.11 GPM of hot water, perfect for outdoor showers.
Drawbacks
- No dishwasher-safe parts, requires manual cleaning.
The Tankless Water Heater Propane is an excellent solution for those seeking hot water on the go. With a compact design and a weight that makes it easy to transport, it’s ideal for camping, hiking, or any outdoor activity. The included showerhead and pet showerhead enhance its versatility, allowing you to enjoy a refreshing shower or wash your pets conveniently.
This unit features advanced combustion technology, ensuring efficient gas usage while delivering a powerful maximum output of 68,000 BTU/hour. You can expect an impressive maximum temperature rise of 167°F, making it suitable for various outdoor needs. The dual power options for the water pump provide flexibility, accommodating both vehicle and battery setups.
However, it’s important to note that none of the parts are dishwasher-safe, which may require additional effort for maintenance. Overall, this tankless water heater is a practical pick for small spaces, offering a reliable source of hot water wherever you are.
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Homhelar Ignition Transformer for Navien Heater
Homhelar 30010455A Ignition Transformer: 12” long, ABS plastic, 2-year warranty.
Benefits
- Wide compatibility with various Navien tankless water heaters.
- High voltage output converts standard line voltage to a powerful spark.
- Safe and reliable operation with low output current despite high voltage.
- Premium material and insulated housing ensure durability and safety.
Drawbacks
- No dishwasher-safe parts, requiring manual cleaning.
The Homhelar 30010455A Ignition Transformer is a practical choice for those needing reliable ignition for their Navien tankless water heaters. With its wide compatibility, it fits various models seamlessly, ensuring versatility in application. The high voltage output is particularly impressive, generating a strong spark that enhances ignition efficiency.
Safety is paramount, and this transformer meets strict electrical safety standards. The relatively low output current, combined with its high voltage capability, guarantees safe operation, making it a dependable component for your heating system. The use of premium materials and an insulated housing further bolster its reliability and longevity.
However, one downside is that it lacks dishwasher-safe components, which means cleaning will require manual effort. Despite this minor inconvenience, the Homhelar 30010455A Ignition Transformer remains a solid choice for anyone looking to improve their tankless water heater’s performance. It is especially suitable for users in small spaces where efficient heating solutions are essential.
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Faq about Navien Tankless Water Heater Outdoor:
1: What is a Navien tankless water heater outdoor?
A Navien tankless water heater outdoor is a compact, energy-efficient unit designed to provide hot water on demand without the need for a storage tank, suitable for outdoor installation.
2: How does it work?
It heats water directly as it flows through the unit, using advanced technology to maintain a consistent temperature while minimizing energy consumption.
3: What are the benefits of using an outdoor model?
Outdoor models save indoor space, reduce the risk of freezing pipes, and are designed to withstand various weather conditions.
4: What is the lifespan of a Navien tankless water heater?
With proper maintenance, a Navien tankless water heater can last over 20 years, significantly longer than traditional tank heaters.
5: How do I maintain my Navien outdoor heater?
Regular maintenance includes descaling the unit annually, checking the filters, and ensuring proper ventilation for optimal performance.
6: Is installation difficult?
Installation requires professional assistance due to gas and plumbing connections, ensuring safety and compliance with local codes.
7: What is the warranty on Navien products?
Navien typically offers a limited warranty of up to 15 years on heat exchangers and 5 years on parts, providing peace of mind for homeowners.
Conclusion
Both the Rinnai RX199iN and FOGATTI Outdoor Natural Gas Tankless Water Heater exemplify efficiency and innovation in modern water heating solutions. The Rinnai model is distinguished by its advanced technology, offering robust performance and reliability, making it a preferred choice for those seeking optimal energy conservation.
Conversely, the FOGATTI model captivates with its user-friendly features and competitive pricing, ensuring accessibility without compromising on quality. Together, these products represent the pinnacle of outdoor tankless water heaters, catering to diverse consumer needs while promoting sustainability and convenience.





