For homeowners, Rheem propane hot water heaters deliver efficiency without compromise.
Rheem’s innovative water heaters, like the RTG-84DVLP-3 and RTG-70XLP-3, provide consistent hot water for your household needs. These models ensure you enjoy hot water on demand, making them ideal for busy families.
From indoor installations to outdoor setups, Rheem’s products adapt to various home environments, ensuring you have reliable hot water wherever you need it.
We detail pros, cons, and hidden perks ahead.


Rheem High Efficiency Indoor Tankless Water Heater
The adjustable valve sets the Rheem RTG-84DVLP-3 apart from other tankless water heaters. This feature allows users to customize water flow and temperature, ensuring optimal performance tailored to their needs. Constructed with 316-grade stainless steel, this unit resists corrosion, enhancing its longevity. With dimensions of 18.5 x 26 x 11 inches, it fits conveniently in various indoor spaces.
Key Advantages
- The high efficiency design provides up to 8.4 GPM, ensuring continuous hot water even during simultaneous use, making it ideal for larger households.
- Hot-start programming keeps the system in a ready state, eliminating cold-water bursts and enhancing comfort.
- Water-saving settings can save up to 1,100 gallons per year, contributing to both environmental conservation and lower utility bills.
Limitations
- Not compatible with certain existing plumbing configurations, which may require additional modifications for installation.
- Requires professional installation, which can add to overall costs.
Best for outdoor enthusiasts needing a reliable and efficient water heating solution for multiple applications, the Rheem RTG-84DVLP-3 is a robust choice for those seeking consistent performance and energy savings.
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Rheem High Efficiency Outdoor Tankless Water Heater
The Rheem RTG-70XLP-3 stands out with its high efficiency and continuous hot water supply, delivering up to 7.0 GPM. Constructed with 316-grade stainless steel, it resists corrosion and ensures durability. Its compact dimensions (19% smaller than previous models) and reduced weight (22% lighter) facilitate easy installation in tight spaces, making it ideal for various settings.
Key Advantages
- The hot-start programming feature keeps the unit in a ready state, eliminating cold-water bursts during use. This is particularly beneficial for households with multiple simultaneous applications, such as showers and dishwashers.
- Additionally, the water-saving setting conserves up to 1,100 gallons of water annually, contributing to both environmental sustainability and cost savings on utility bills.
Limitations
- It is not compatible with natural gas systems, which may limit its appeal to users with existing natural gas infrastructure.
This model is best suited for outdoor enthusiasts and homeowners seeking a reliable, efficient solution for hot water needs without the bulk of traditional tank systems. Its innovative features make it a top choice for those prioritizing energy efficiency and space-saving design.
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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. This innovative feature allows users to fine-tune the water temperature, ensuring optimal comfort and efficiency. With a flow rate ranging from 0.4 to 6.8 GPM and a powerful output of 120,000 BTUs, this unit is capable of meeting the demands of even the busiest households.
Key Advantages
- Constructed from 316-grade stainless steel, this water heater resists corrosion, ensuring longevity and durability in various environments.
Limitations
- Not compatible with traditional water heater systems, which may require additional modifications for installation.
Measuring 17-11/16 inches in width, the compact design makes it ideal for indoor installations where space is limited. The Rheem model also features an electric ignition system, enhancing reliability and ease of use. Covered under a comprehensive warranty (1 year labor, 15 years for the heat exchanger, and 5 years for parts), it offers peace of mind for users.
This unit is best for outdoor enthusiasts needing a reliable and efficient hot water solution for their homes or recreational vehicles. Its advanced technology and robust construction make it a top choice for those who value performance and durability.
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Rheem RTGH 8.4 GPM Natural Gas Water Heater
The adjustable valve sets the Rheem RRTGH84DVLN3701171 apart from other tankless water heaters. This feature allows users to customize the water flow rate, providing optimal performance tailored to specific needs. Constructed from 316-grade stainless steel, the unit resists corrosion, ensuring longevity and reliability. With dimensions of 17-11/16 inches in width, it fits comfortably in various installation spaces.
Key Advantages
- The unit offers a flow rate ranging from 0.4 to 8.4 GPM, making it versatile for different household demands.
- Temperature settings can be adjusted between 100 to 140°F, with a default of 120°F, allowing for precise control over hot water availability.
- Equipped with an electric ignition system, the heater provides reliable start-up performance.
- Warranty coverage includes 1 year for labor, 15 years for the heat exchanger, and 5 years for parts, ensuring peace of mind for users.
Limitations
- Not compatible with specific older plumbing systems, which may require additional modifications for installation.
Best for outdoor enthusiasts needing a robust and efficient solution for hot water in remote locations or during camping trips, the Rheem RRTGH84DVLN3701171 excels in providing instant hot water while maintaining energy efficiency.
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Rheem High Efficiency Outdoor Tankless Water Heater
The adjustable valve sets the Rheem RTG-84XLN-3 apart from conventional water heaters, allowing users to customize their hot water output efficiently. This unit is constructed from 316-grade stainless steel, ensuring durability and resistance to corrosion. With dimensions of 18.5 x 26.5 x 12.5 inches and a weight reduction of 22% compared to its predecessor, it is designed for easy installation and space-saving capabilities.
Key Advantages
- Provides 8.4 GPM of continuous hot water, accommodating multiple applications simultaneously, such as showers and dishwashers.
- Features a high-efficiency design that operates only when needed, resulting in significant energy savings.
- Incorporates a water-saving setting that can save up to 1,100 gallons of water annually.
- Includes hot-start programming to prevent cold-water bursts, ensuring a steady supply of hot water.
Limitations
- Not compatible with traditional tank water heaters, requiring specific installation considerations.
- May require professional installation due to its gas line and venting needs.
Best for outdoor enthusiasts needing reliable hot water for their homes, the Rheem RTG-84XLN-3 is an excellent investment for those seeking efficiency and performance in their hot water systems.
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Faq about Rheem Propane Hot Water Heater:
1: What is a Rheem propane hot water heater?
A Rheem propane hot water heater is a reliable appliance that heats water using propane gas, providing efficient hot water for residential and commercial use.
2: How does a Rheem propane hot water heater work?
It operates by igniting propane gas to heat water in a tank or through on-demand systems, ensuring a steady supply of hot water.
3: What are the benefits of using a Rheem propane hot water heater?
Benefits include faster heating, lower energy costs, and environmental advantages compared to electric water heaters.
4: How do I maintain my Rheem propane hot water heater?
Regular maintenance involves flushing the tank, checking the anode rod, and inspecting gas connections for safety and efficiency.
5: What size Rheem propane hot water heater do I need?
The size depends on your household’s hot water demand. A professional can help determine the best capacity for your needs.
6: Are Rheem propane hot water heaters energy-efficient?
Yes, Rheem models are designed for high energy efficiency, often featuring insulation and advanced heating technology to reduce energy consumption.
7: Where can I buy a Rheem propane hot water heater?
You can purchase Rheem propane hot water heaters at home improvement stores, plumbing supply shops, or online retailers.
Conclusion
Rheem’s High Efficiency Indoor Tankless Water Heater exemplifies cutting-edge technology, delivering an unparalleled, continuous supply of hot water while optimizing energy consumption. Its compact design and advanced features make it a quintessential choice for modern households seeking efficiency and convenience.
Conversely, the Rheem High Efficiency Outdoor Tankless Water Heater stands out for its robustness and durability, engineered to withstand the elements while providing consistent performance. Together, these products epitomize Rheem’s commitment to innovation, catering to diverse consumer needs with exceptional reliability and efficiency.



