best rheem pilotless gas water heater – Are These Models Worth Your Money?
For homeowners, the best Rheem pilotless gas water heater ensures endless hot water without the hassle.
The Rheem RRTGH84DVLN3701171, a top contender in the market, delivers exceptional performance with its 8.4 GPM flow rate. This best-rated product is perfect for large households needing reliable hot water on demand.
From compact spaces to outdoor installations, Rheem models adapt seamlessly to your needs, providing versatility and efficiency in every setting.
We detail pros, cons, and hidden perks ahead.


Rheem RTGH 8.4 GPM Gas Water Heater
The adjustable valve sets the Rheem RRTGH84DVLN3701171 apart from other tankless water heaters, allowing for precise control over water temperature and flow rate. Constructed from 316-grade stainless steel, this unit resists corrosion, ensuring longevity and reliability in various environments. With dimensions of 17-11/16 inches in width, it fits comfortably in most residential settings, making it an ideal choice for homeowners.
Key Advantages
- The 8.4 GPM flow rate provides sufficient hot water for multiple outlets simultaneously, catering to larger households.
- Temperature settings range from 100 to 140°F, with a default of 120°F, allowing users to customize their hot water experience.
- Equipped with an electric ignition, it ensures reliable start-up and operation without the need for a pilot light.
- Backed by a 1-year labor, 15-year heat exchanger, and 5-year parts warranty, offering peace of mind to users.
Limitations
- Not compatible with electric systems, limiting its use to natural gas installations only.
- Requires proper venting, which may complicate installation in some homes.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rheem RRTGH84DVLN3701171 excels in performance and durability, making it a top choice for residential use.
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Rheem Outdoor Tankless Gas Water Heater
The Rheem RTG-70XLN-3 sets itself apart with its high efficiency and continuous hot water capability, providing up to 7.0 GPM. Constructed from durable materials, including 316-grade stainless steel for corrosion resistance, this unit measures 23.75 x 14.25 x 8.75 inches and weighs approximately 45 pounds, making it compact and easy to install.
Key Advantages
- The hot-start programming feature ensures that the heater is always ready, eliminating cold-water bursts during use.
- With a water-saving setting, it conserves up to 1,100 gallons of water annually, making it an environmentally friendly choice.
- Its energy-efficient design means it only operates when hot water is needed, significantly reducing energy costs.
Limitations
- The Rheem RTG-70XLN-3 is not compatible with certain older plumbing systems, which may require additional modifications for installation.
Best for outdoor enthusiasts and homeowners seeking a reliable source of hot water without the bulk of traditional tanks, this unit excels in efficiency and performance, making it a top choice for modern households.
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Rheem High Efficiency Indoor Tankless Water Heater
The adjustable valve sets the Rheem RTG-70DVLN-3 apart from other tankless water heaters. Constructed from 316-grade stainless steel, this unit is designed to resist corrosion, ensuring durability and longevity. With dimensions of 18.5 x 14 x 26.5 inches, it fits seamlessly into most indoor spaces while providing a remarkable flow rate of 7.0 GPM, making it suitable for simultaneous use in multiple applications, such as showers and dishwashers.
Key Advantages
- The high-efficiency design means the heater only operates when hot water is needed, significantly reducing energy costs.
- Its water-saving setting conserves up to 1,100 gallons of water annually, making it an eco-friendly choice.
- Hot-start programming keeps the unit in a ready state, preventing cold-water bursts during use.
- LeakGuard Leak Detection & Prevention technology protects homes from potential water damage by detecting internal leaks, both large and small.
Limitations
- Not compatible with certain older plumbing systems, which may require additional modifications for installation.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rheem RTG-70DVLN-3 offers continuous hot water and advanced features that cater to modern home needs while prioritizing energy and water conservation.
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SP20075 Pilot and Igniter Assembly
The adjustable valve sets the SP20075 Pilot and Igniter Assembly apart from other options on the market. This feature allows for precise control over the gas flow, optimizing the ignition process for natural gas water heaters. Constructed from 316-grade stainless steel, the assembly resists corrosion and ensures durability even in high-temperature environments. The dimensions are compact, making it suitable for various installations without space constraints.
Key Advantages
- High-quality materials ensure longevity, with silicone gaskets providing effective leakage prevention.
Limitations
- Not compatible with electric water heaters or models outside the specified compatibility range, which includes Rheem and Fury Series water heaters.
This assembly is best for outdoor enthusiasts needing reliable ignition solutions for their natural gas water heaters. It addresses common issues such as delayed lighting and thermocouple failures, making it a practical choice for those requiring consistent performance in their water heating systems. Installation is straightforward, taking only 15-30 minutes, which adds to its appeal for DIY users. Overall, the SP20075 is a robust solution for maintaining efficient water heating in outdoor and residential applications.
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Rheem Gas Control Thermostat, Natural Gas
The adjustable valve sets the Rheem AP14270G Gas Control Thermostat apart from other models in its category. This thermostat is designed to efficiently control the flow of natural gas from the main supply line to the burner, ensuring optimal performance for your gas water heater. Constructed from high-quality materials, it features a robust 316-grade stainless steel body that resists corrosion, enhancing its durability. With dimensions of 12.7 x 7.5 x 6.6 inches, it fits seamlessly into most gas water heating systems.
Key Advantages
- The adjustable valve provides precise control over gas flow, allowing for tailored heating performance.
- Its OEM genuine factory authorized part status guarantees compatibility and reliability.
- Designed for easy installation, reducing downtime during replacement.
Limitations
- Not compatible with electric water heaters or other non-Rheem gas water heater models.
- Limited to natural gas systems, excluding propane applications.
In summary, the Rheem AP14270G Gas Control Thermostat is best suited for outdoor enthusiasts needing a reliable and efficient solution for their gas water heating needs. Its advanced features and durable construction make it an excellent choice for maintaining consistent water temperatures while maximizing energy efficiency.
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Faq about Best Rheem Pilotless Gas Water Heater:
1:What is a pilotless gas water heater?
A pilotless gas water heater uses electronic ignition instead of a standing pilot light, enhancing efficiency and safety.
2:What are the benefits of Rheem pilotless gas water heaters?
Rheem pilotless gas water heaters offer energy savings, quicker heating times, and reduced risk of gas leaks compared to traditional models.
3:How do I maintain my Rheem pilotless gas water heater?
Regularly check the anode rod, flush the tank annually, and inspect the gas connections for leaks to ensure optimal performance.
4:What size Rheem pilotless gas water heater do I need?
The size depends on your household’s hot water demand; consider factors like the number of occupants and peak usage times.
5:Are Rheem pilotless gas water heaters energy-efficient?
Yes, they are designed to be energy-efficient, often featuring high energy factor ratings that reduce utility costs.
6:Can I install a Rheem pilotless gas water heater myself?
While DIY installation is possible, it’s recommended to hire a licensed professional for safety and compliance with local codes.
Conclusion
The Rheem RTGH 8.4 GPM Gas Water Heater exemplifies efficiency and innovation, delivering robust performance tailored for modern households. Its sleek design and advanced technology ensure a consistent supply of hot water, making it a premier choice for discerning consumers.
Conversely, the Rheem Outdoor Tankless Gas Water Heater offers unparalleled convenience and space-saving benefits, ideal for outdoor installations. Its durability and reliability position it as a formidable contender in the market, catering to those seeking optimal heating solutions without compromising on quality.





