Propane Navien Tankless Water Heater: What You Didn’t Know Before Buying

Cheap tankless water heaters disappoint—but Rheem RTGH-84DVLP-3 delivers.

When it comes to efficient heating, the choice of a tankless water heater is vital. The **Rheem RTGH-84DVLP-3** offers impressive flow rates at 8.4 GPM, while the **Rheem RTG-70DVLP-3** excels in energy efficiency with its 7.0 GPM performance. Both models ensure you never run out of hot water when you need it most.

For outdoor use, the new Rinnai RX199iN stands out with its smart technology and robust design, capable of handling up to 11.1 GPM.

Below, we analyze budget, lifespan, and real-user feedback.

Rheem RTGH Series 8.4 GPM Tankless Water Heater

The adjustable valve sets the Rheem RTGH-84DVLP-3 RTGH Series apart, providing users with precise control over water flow and temperature. This tankless water heater boasts a flow rate of 0.4 – 8.4 GPM, making it suitable for various household needs. Constructed from 316-grade stainless steel, it resists corrosion and ensures longevity. With dimensions of 17-11/16 inches in width, it fits easily into most indoor spaces.

Key Advantages

• The electric ignition system enhances reliability, eliminating the need for pilot lights.
• Temperature settings ranging from 100 to 140°F allow for customizable heating, catering to specific preferences.
• Backed by a comprehensive warranty—1 year for labor, 15 years on the heat exchanger, and 5 years on parts—demonstrating manufacturer confidence in product durability.

Limitations

• Not compatible with other brands’ venting systems, which may limit installation options.
• Requires a minimum gas supply pressure, which may necessitate additional plumbing adjustments.

Best for outdoor enthusiasts needing efficient and reliable hot water solutions, the Rheem RTGH-84DVLP-3 RTGH Series is a solid choice for those looking for performance and durability in a compact design.

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Rheem High Efficiency Indoor Tankless Water Heater

The adjustable valve sets the Rheem RTG-70DVLP-3 apart from conventional water heaters. This feature allows for precise control over water temperature and flow, enhancing user experience. Constructed from 316-grade stainless steel, it resists corrosion, ensuring durability and longevity. The unit measures 18.5 x 30 x 11.5 inches, making it compact enough for various indoor installations.

Key Advantages

• The 7.0 GPM flow rate provides continuous hot water, accommodating multiple applications simultaneously, such as showers and dishwashers.
• High energy efficiency means it only operates when hot water is needed, significantly reducing energy costs.
• Water-saving settings can conserve up to 1,100 gallons annually, making it an eco-friendly choice.
• Hot-start programming prevents cold-water bursts, ensuring a comfortable experience.
• LeakGuard Leak Detection & Prevention system protects your home from potential water damage by identifying internal leaks.

Limitations

• Not compatible with all existing plumbing systems, which may require additional modifications for installation.

Best for outdoor enthusiasts needing a reliable, energy-efficient hot water solution for their homes, the Rheem RTG-70DVLP-3 excels in performance and safety features, making it a solid investment for those who prioritize efficiency and convenience.

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Rinnai RX199iN Tankless Water Heater

The adjustable valve sets the Rinnai RX199iN Condensing Smart Sense Tankless Water Heater apart from its competitors. Constructed from 316-grade stainless steel, this unit is designed for durability and resists corrosion, ensuring a long lifespan. Measuring just 14.6 x 18.5 x 26 inches, it is compact enough for various installations, whether indoors or outdoors.

Key Advantages

• The heater provides an impressive output of up to 11.1 GPM, making it capable of servicing up to seven fixtures simultaneously.
• Its super-high energy efficiency with a UEF of .98 significantly reduces energy costs.
• The Quick Flush feature simplifies maintenance, ensuring optimal performance over time.
• WiFi control compatibility allows for remote management, enhancing user convenience.

Limitations

• Not compatible with certain older venting systems, necessitating upgrades for effective installation.
• Professional installation is recommended, which may incur additional costs.

Best for outdoor enthusiasts needing a reliable, high-capacity water heating solution, the Rinnai RX199iN is ideal for homes with high hot water demands. Its advanced features and efficient design make it a top choice for those looking to optimize their energy usage without sacrificing performance.

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Rinnai V53DeP Outdoor Propane Water Heater

The adjustable valve sets the Rinnai V53DeP Propane Tankless Water Heater apart, ensuring precise control over water temperature and flow. Constructed from durable 316-grade stainless steel, this unit resists corrosion, making it ideal for outdoor installation. With dimensions of 24 x 14 x 10 inches, it fits neatly into tight spaces while delivering an impressive flow rate of 5.3 GPM, perfect for busy households.

Key Advantages

• The energy-efficient design heats water on demand, significantly reducing energy consumption and extending the unit’s lifespan through advanced scale detection features.

Limitations

• Not compatible with natural gas systems, limiting its use to propane only.

Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rinnai V53DeP is perfect for families who require consistent hot water for multiple appliances simultaneously. Its professional installation recommendation ensures optimal performance and adherence to safety standards, making it a smart investment for those seeking convenience and reliability in their hot water supply.

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Rheem High Efficiency Outdoor Tankless Water Heater

The adjustable valve sets the Rheem RTG-70XLP-3 apart from other tankless water heaters. This feature allows users to customize water flow rates, ensuring optimal performance tailored to specific needs. Constructed from 316-grade stainless steel, this unit resists corrosion, enhancing its durability. With dimensions of 18.5 x 26.25 x 11.5 inches and a weight reduction of 22% compared to previous models, installation is straightforward and less cumbersome.

Key Advantages

• The 7.0 GPM capacity ensures continuous hot water supply, even during simultaneous usage of multiple applications, such as showers and dishwashers.
• Its high efficiency means the heater only operates when needed, significantly reducing energy costs.
• The water-saving setting can conserve up to 1,100 gallons of water annually, making it eco-friendly.
• Hot-start programming maintains a ready state, eliminating cold-water bursts and ensuring comfort.

Limitations

• While versatile, it is not compatible with electric systems, limiting its use to propane installations.

Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rheem RTG-70XLP-3 is designed for those who prioritize performance and sustainability in their water heating systems.

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Faq about propane Navien tankless water heater:

1: What is a propane Navien tankless water heater?

A propane Navien tankless water heater provides on-demand hot water using propane as a fuel source, eliminating the need for a storage tank.

2: How does a propane Navien tankless water heater work?

It heats water directly as it flows through the unit, activating the burner when a hot water tap is opened, ensuring continuous supply without heating a tank.

3: What are the benefits of using a propane Navien tankless water heater?

Benefits include energy efficiency, space-saving design, endless hot water supply, and lower greenhouse gas emissions compared to traditional water heaters.

4: How do I maintain a propane Navien tankless water heater?

Regular maintenance includes descaling the unit annually, checking the filters, and ensuring proper ventilation for optimal performance.

5: Is installation complicated for a propane Navien tankless water heater?

Installation can be complex and typically requires a licensed professional to ensure safe and proper setup, including gas line and venting considerations.

6: What size propane Navien tankless water heater do I need?

Choosing the right size depends on your household’s hot water demand; consult the Navien sizing guide or a professional for personalized recommendations.

Conclusion

Both the Navien and Rheem tankless water heaters exemplify superior engineering and efficiency in modern water heating solutions. The Navien model is lauded for its advanced technology and exceptional performance, making it a prime choice for those seeking reliability and energy savings. Conversely, the Rheem RTGH Series stands out for its impressive flow rate and high efficiency, appealing to consumers prioritizing robust hot water delivery.

Ultimately, selecting between these two exceptional products hinges on individual needs and preferences, as both offer distinct advantages. The Navien’s innovative features and Rheem’s consistent performance ensure that users can achieve optimal comfort and efficiency in their hot water systems.