For homeowners, a Rheem propane water heater delivers endless hot water efficiently.
The Rheem RTG-70DVLP-3 and RTG-70XLP-3 are perfect for families seeking reliable hot water solutions. These tankless models provide hot water on demand, ensuring comfort and convenience without the bulk of traditional tanks.
From indoor to outdoor installations, these heaters adapt to your needs. Enjoy versatile options that fit various spaces and lifestyles, making them ideal for any home.
We detail pros, cons, and hidden perks ahead.


Rheem High Efficiency Indoor Tankless Water Heater
The adjustable valve sets the Rheem RTG-70DVLP-3 apart from its competitors in the tankless water heater market. Made from 316-grade stainless steel, it resists corrosion, ensuring durability and longevity. With dimensions of 18.25 x 14.5 x 26.5 inches, this compact unit fits seamlessly into various spaces while providing a robust 7.0 GPM flow rate, making it suitable for larger households.
Key Advantages
- The high-efficiency design only activates when hot water is needed, significantly reducing energy costs.
- Its water-saving setting conserves up to 1,100 gallons of water annually, making it environmentally friendly.
- Hot-start programming keeps the heater ready, eliminating cold-water bursts during use.
- LeakGuard Leak Detection & Prevention technology protects your home from potential water damage by identifying internal leaks, both large and small.
Limitations
- Not compatible with certain older plumbing systems, which may require additional modifications for installation.
This model is best for outdoor enthusiasts needing a reliable and efficient hot water solution for their homes or recreational spaces. Its advanced features and robust construction make it a solid investment for those prioritizing performance and sustainability.
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Rheem High Efficiency Outdoor Tankless Water Heater
The adjustable valve sets the Rheem RTG-70XLP-3 apart, allowing users to fine-tune water flow and temperature for optimal performance. This tankless liquid propane water heater boasts a capacity of 7.0 gallons per minute (GPM), ensuring continuous hot water supply for multiple applications simultaneously. Constructed from 316-grade stainless steel, it resists corrosion, enhancing durability and longevity. With compact dimensions of 18.5 x 28.5 x 12.5 inches and a weight reduction of 22% compared to previous models, installation is straightforward and space-efficient.
Key Advantages
- The high efficiency of this water heater significantly reduces energy costs, operating only when hot water is needed. Additionally, the water-saving setting can conserve up to 1,100 gallons annually, making it an eco-friendly choice.
Limitations
- It is not compatible with natural gas systems, limiting its use to those who have or plan to install liquid propane systems.
Overall, the Rheem RTG-70XLP-3 is best for outdoor enthusiasts needing a reliable and efficient hot water solution for their homes, especially in scenarios where multiple hot water demands arise simultaneously.
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Rheem Tankless Liquid Propane Water Heater
The adjustable valve sets the Rheem Liquid Propane Condensing Tankless Water Heater apart from its competitors. With a robust flow rate of 0.4 to 6.8 GPM and a powerful output of 120,000 BTUs, this unit ensures a consistent supply of hot water. Constructed from high-quality materials, including 316-grade stainless steel for the heat exchanger, it is designed to resist corrosion and enhance longevity. The compact dimensions of 17-11/16 inches in width make it suitable for various installation spaces.
Key Advantages
- The electric ignition system provides reliable and efficient startup.
Limitations
- Not compatible with electric water heating systems, limiting its versatility in some setups.
This water heater is best for outdoor enthusiasts needing a reliable source of hot water for camping or outdoor showers. Its efficient design and adjustable settings make it ideal for those who require flexibility in temperature control, ranging from 100 to 140°F, with a default setting of 120°F. Overall, the Rheem Liquid Propane Condensing Tankless Water Heater is an excellent choice for users looking for efficiency and durability in their hot water solutions.
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Rheem RTGH Series 8.4 GPM Tankless Water Heater
The adjustable valve sets the Rheem RRTGH84DVLN3701171 apart in the realm of tankless water heaters. This model boasts a flow rate of 0.4 – 8.4 GPM, making it suitable for various household demands. Constructed from 316-grade stainless steel, it resists corrosion and enhances durability, ensuring longevity in performance. With dimensions of 17-11/16 inches in width, this unit is compact enough for most installations while still delivering powerful output.
Key Advantages
- The electric ignition feature allows for quick and easy startup, eliminating the need for pilot lights.
Limitations
- Not compatible with other brands’ remote control systems, which may limit integration options.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rheem RTGH Series is ideal for those who require on-demand hot water without the bulk of traditional tanks. Its adjustable temperature settings, ranging from 100 to 140°F, provide flexibility to users, accommodating various preferences and needs. Covered under a 1-year labor warranty, a 15-year heat exchanger warranty, and a 5-year parts warranty, this unit offers peace of mind alongside its performance. Overall, the Rheem RRTGH84DVLN3701171 is a strong contender for anyone seeking a robust, efficient tankless water heater.
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Rheem High Efficiency Outdoor Tankless Water Heater
The Rheem RTG-84XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater sets itself apart with its continuous hot water capability, delivering an impressive 8.4 GPM. This feature ensures that multiple applications, such as simultaneous showers and dishwashing, can be accommodated without a hitch. Constructed from 316-grade stainless steel, it resists corrosion and enhances durability, making it a reliable choice for long-term use. With dimensions that are 19% smaller and a weight reduction of 22% compared to previous models, installation becomes significantly easier.
Key Advantages
- The high-efficiency design only operates when hot water is needed, leading to substantial energy savings.
- Its water-saving setting can save up to 1,100 gallons of water annually, making it an eco-friendly option.
- Hot-start programming ensures the heater remains in a ready state, preventing cold-water bursts during usage.
Limitations
- Not compatible with standard tank water heaters, which may require additional adjustments for installation.
Best for outdoor enthusiasts needing a reliable and efficient solution for continuous hot water, the Rheem RTG-84XLN-3 is an excellent investment for those seeking performance and convenience in their water heating needs.
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Faq about Rheem Propane Water Heater:
1:What is a Rheem propane water heater?
A Rheem propane water heater is a type of water heating system that uses propane gas as a fuel source to heat water for residential or commercial use.
2:What are the benefits of using a Rheem propane water heater?
Benefits include energy efficiency, faster heating, lower operational costs, and reliability compared to electric water heaters.
3:How do I maintain my Rheem propane water heater?
Regular maintenance includes flushing the tank, checking the anode rod, inspecting gas connections, and ensuring proper ventilation.
4:What size Rheem propane water heater do I need?
Size depends on your household’s hot water demand. Consider factors like the number of occupants and simultaneous usage to select the right capacity.
5:Are Rheem propane water heaters energy-efficient?
Yes, Rheem propane water heaters are designed to be energy-efficient, often featuring high energy factor ratings that reduce utility bills.
6:Can I install a Rheem propane water heater myself?
While some homeowners may attempt DIY installation, it is recommended to hire a licensed professional for safety and compliance with local codes.
7:What warranty does Rheem offer on propane water heaters?
Rheem typically provides a limited warranty ranging from 6 to 12 years, depending on the model and components.
Conclusion
Rheem’s High Efficiency Indoor Tankless Water Heater exemplifies cutting-edge technology, delivering unparalleled performance and consistent hot water supply, ideal for residential needs. Its compact design and energy efficiency make it a prime choice for modern households seeking sustainability without compromising comfort.
Conversely, the Rheem High Efficiency Outdoor Tankless Water Heater stands out for its robust construction and exceptional durability, designed to withstand outdoor elements while providing reliable hot water on demand. Both products reflect Rheem’s commitment to innovation, catering to diverse consumer preferences and enhancing overall energy efficiency.



