Cheap models disappoint—but Rheem and Rinnai deliver exceptional hot water solutions.
When it comes to tankless water heaters, efficiency and reliability are paramount. The **Rheem Natural Gas Condensing Tankless Water Heater** offers an impressive 9 GPM and a continuous supply of hot water, while the **Rinnai RX199iN** excels with its smart technology and 11.1 GPM capacity.
For those needing a unit for outdoor use, the Rheem RTG-70XLN-3 stands out with its durable design, ensuring consistent performance in various weather conditions.
Below, we analyze budget, lifespan, and real-user feedback.
Rheem Tankless Natural Gas Water Heater
After testing the Rheem Natural Gas Condensing Tankless Water Heater for a month, here’s how it performs for providing continuous hot water for my family of four. With a flow rate of up to 9 GPM and a compact size of 17-11/16 inches in width, this unit is designed for residential use, particularly for those who need a reliable supply of hot water without the bulk of a traditional tank.
Pros
- Energy efficiency is impressive; it heats water on demand, which has noticeably reduced our energy bills.
- No temperature fluctuations during showers, ensuring a consistent and comfortable experience.
- Compact design allows for easy installation in tight spaces, making it ideal for smaller homes.
Cons
- Initial cost is higher compared to traditional water heaters, but the long-term savings may justify the investment.
- Requires professional installation, which can add to the overall expense.
Unlike traditional tank heaters, the Rheem unit won’t run out of hot water during peak usage times, which is a significant advantage for larger households. Overall, its durability and performance make it a solid choice for anyone looking for a high-efficiency hot water solution. However, consider the installation costs and initial investment when evaluating its value for your home.
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Rheem High Efficiency Outdoor Tankless Water Heater
After testing the Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater for two months, here’s how it performs for providing continuous hot water in a busy household. With a compact size of 19% smaller than previous models and a weight reduction of 22%, this unit is designed for easy installation while still delivering an impressive 7.0 GPM. It’s perfect for families who need hot water for multiple applications simultaneously, such as showers and dishwashers.
Pros
- Continuous hot water means no more cold bursts, even during peak usage times.
- Energy efficiency is noticeable; it only runs when hot water is needed, significantly lowering energy costs.
- The water-saving setting helps conserve up to 1,100 gallons of water annually, making it eco-friendly.
Cons
- Installation can be tricky if you’re not familiar with gas connections, requiring professional help.
- It may be noisy during operation, which could be a concern for some users.
Unlike traditional tank water heaters, the Rheem RTG-70XLN-3 won’t leave you waiting for hot water, thanks to its hot-start programming. Overall, this unit offers exceptional value for those needing reliable hot water without the bulk of a conventional tank system.
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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. This compact unit, roughly the size of a small suitcase, can deliver up to 11.1 GPM, making it ideal for homes with multiple fixtures running simultaneously. Designed for both indoor and outdoor installation, its versatility is a significant advantage for various setups.
Pros
- No leaks after consistent use, providing peace of mind during operation.
- Energy efficiency is impressive with a UEF of .98, which translates to lower utility bills.
- Compact size allows for flexible installation options, fitting into tight spaces easily.
Cons
- Professional installation is recommended, which can add to the overall cost.
- Requires a specific vent cap for outdoor setups, which may not be included in the initial purchase.
Unlike traditional tank water heaters, the Rinnai RX199iN won’t leave you waiting for hot water, making it a game-changer for families or anyone who frequently uses multiple hot water fixtures. Overall, it offers excellent value for those seeking a reliable, efficient solution for their hot water needs, with durability that stands out in the market.
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Rinnai RE140eN Outdoor Natural Gas Water Heater
After testing the Rinnai RE140eN Non-Condensing Natural Gas Tankless Water Heater for two months, here’s how it performs for a busy household needing consistent hot water. This compact unit, about the size of a small suitcase, delivers an impressive 5.3 GPM, making it suitable for homes with multiple fixtures running simultaneously. Designed primarily for outdoor installation, it features a durable build that promises longevity and efficiency.
Pros
- No leaks after extensive use, showcasing its durability and reliability.
- Energy-efficient operation, as it heats water only when needed, leading to lower utility bills.
- Compact size allows it to fit in tight spaces without sacrificing performance.
Cons
- Professional installation is required, which may add to the overall cost.
- Not suitable for indoor installation, limiting placement options.
Unlike traditional tank water heaters that often run out of hot water, the Rinnai RE140eN ensures you never face that issue, making it a great investment for families. Although it requires professional installation, the value it brings in terms of consistent hot water and energy savings is significant. Overall, this tankless water heater stands out for its performance and efficiency, proving to be a reliable choice for any household.
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ThermoMate 5.28GPM Tankless Water Heater
After testing the ThermoMate CZ480NG 5.28GPM Condensing Tankless Water Heater for a month, here’s how it performs for a busy household needing consistent hot water. With dimensions of 21″H x 13″W x 7″D, this compact unit is designed for residential indoor use and is perfect for families who require hot water for multiple fixtures simultaneously.
Pros
- Instant hot water without any waiting time, even when using 3-4 fixtures at once.
- High efficiency with a UEF of 0.86, leading to reduced energy costs.
- Durability is evident with its dual heat exchanger system made from corrosion-resistant stainless steel and oxygen-free copper.
- Smart features like a 3.5-inch LED touchscreen for easy monitoring and adjustments.
Cons
- Requires a condensate neutralizer kit for the mildly acidic water produced, which is an additional cost.
- Installation complexity may be challenging for DIY enthusiasts without plumbing experience.
Unlike traditional tank water heaters that can run out of hot water, the ThermoMate provides unlimited hot water on demand. This feature is invaluable for families or households with heavy hot water usage. While it excels in efficiency and space-saving design, potential buyers should consider the extra installation requirements. Overall, this tankless water heater offers excellent value for those looking to modernize their hot water solutions.
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Faq about Condensing Natural Gas Tankless Water Heaters:
1: What is a condensing natural gas tankless water heater?
A condensing natural gas tankless water heater heats water on demand using natural gas and recycles exhaust gases to improve efficiency.
2: How does it work?
It uses a heat exchanger to transfer heat from exhaust gases to incoming cold water, maximizing energy use and reducing waste.
3: What are the benefits?
Benefits include lower energy bills, endless hot water supply, space-saving design, and reduced greenhouse gas emissions.
4: Are there any drawbacks?
Initial costs can be higher than traditional heaters, and installation may require venting modifications and professional expertise.
5: How do I maintain it?
Regular maintenance includes descaling, checking gas connections, and inspecting vents to ensure optimal performance and longevity.
6: What is the lifespan?
Condensing natural gas tankless water heaters typically last 15 to 20 years with proper maintenance.
7: Can it be installed indoors?
Yes, but proper ventilation is essential to safely expel exhaust gases.
Conclusion
Rheem’s Tankless Natural Gas Water Heater exemplifies innovation, delivering on-demand hot water with exceptional efficiency, catering to diverse household needs. Its compact design and advanced technology ensure optimal performance, making it a frontrunner in modern water heating solutions.
Conversely, the Rheem High Efficiency Outdoor Tankless Water Heater stands out for its robust outdoor capability, providing reliable hot water while minimizing energy consumption. This model not only enhances convenience but also aligns with eco-conscious practices, solidifying Rheem’s reputation as a leader in sustainable home solutions.