65 Gallon Gas Water Heater – Which Features Will Surprise You?
Looking for an efficient solution for endless hot water? A 65-gallon gas water heater is your answer!
When it comes to reliable hot water, the Rinnai RXP199iN stands out with its advanced condensing technology, offering up to 11.1 GPM. This versatile heater is perfect for both indoor and outdoor use, ensuring you have hot water whenever you need it. Additionally, the ThermoMate CZ422NG provides high efficiency with instant on-demand hot water at 4.7 GPM, making it ideal for whole-house applications.
For those who prefer outdoor solutions, the Rheem RTG-70XLN-3 delivers 7.0 GPM, ensuring you never run out of hot water. Each product features unique selling points, catering to various household needs and preferences.
In this full review, we will delve into the features, benefits, and performance of these top choices, helping you make an informed decision about the perfect 65-gallon gas water heater for your home.


Rinnai RXP199iN Tankless Water Heater
In a market flooded with tankless water heaters, the Rinnai RXP199iN stands out by offering exceptional efficiency and versatility. This model can be installed both indoors and outdoors, powered by either natural gas or propane, making it a flexible choice for various home setups.
Where It Excels
- 30% lighter than the Rheem RUC98iN, making it easier to handle during installation.
Where It Lags
- Fewer color options than the Bosch Greentherm series, which may appeal to those looking for aesthetic variety.
What sets the Rinnai RXP199iN apart is its compact size and high performance. At just the size of a small suitcase, it delivers up to 11.1 GPM, enough to service multiple fixtures simultaneously without running out of hot water. Its Smart-Circ Intelligent Recirculation technology learns your water usage patterns, optimizing efficiency and convenience.
However, it may fall short for users who prioritize aesthetic customization, as it offers limited color options compared to competitors like Bosch. If weight and efficiency are your primary concerns, the Rinnai RXP199iN is an excellent choice. Its lightweight design and advanced features make it ideal for homeowners seeking a reliable and efficient hot water solution.
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ThermoMate 102,000 BTU Tankless Water Heater
In a market flooded with tankless water heaters, the ThermoMate CZ422NG stands out by offering an impressive combination of efficiency and advanced features. With a powerful 102,000 BTU output and a flow rate of 4.7 GPM, it delivers consistent hot water for multiple fixtures simultaneously, making it ideal for busy households.
Where It Excels
- 30% more energy efficient than traditional tank models, thanks to its high-quality oxygen-free copper heat exchanger, achieving a thermal efficiency of 98%.
Where It Lags
- Fewer color options than some competitors, such as Rinnai, which may offer more aesthetic choices for homeowners looking to match their decor.
This model is particularly recommended if energy efficiency and space-saving design are your top priorities. Its compact size frees up valuable room, while the smart diagnostic display makes monitoring and adjustments simple. However, if you prefer a broader range of aesthetic options, you might want to explore alternatives like the Rinnai RUC98iN. Overall, the ThermoMate CZ422NG is an excellent choice for those seeking reliable, efficient hot water on demand.
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Rheem High Efficiency Outdoor Tankless Water Heater
In a market flooded with tankless water heaters, the Rheem RTG-70XLN-3 stands out by offering exceptional efficiency and performance tailored for modern households. With a flow rate of 7.0 GPM, it ensures continuous hot water even when multiple appliances are in use, making it a reliable choice for busy families.
Where It Excels
- 30% lighter than the Rinnai RUC98i, the Rheem is easier to install and manage, allowing for more flexible placement options.
Where It Lags
- Fewer color options than the EcoSmart ECO 27, which offers a more modern aesthetic for those concerned with visual appeal.
Pick this if weight matters most. The Rheem RTG-70XLN-3 not only saves space with its compact design but also features a water-saving setting that can conserve up to 1,100 gallons annually. This makes it an environmentally friendly choice, especially for households looking to reduce their water usage. Additionally, its hot-start programming eliminates cold-water bursts, enhancing user comfort.
Overall, while it may lack in aesthetic variety, the Rheem RTG-70XLN-3 excels in efficiency and ease of installation, making it a top contender for anyone prioritizing performance and practicality in their water heating solution.
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Ranein 2025 Natural Gas Tankless Water Heater
In a market flooded with tankless water heaters, the 2025 GEN l Ranein Natural Gas Tankless Water Heater stands out by offering an impressive 8.5 GPM flow rate and 190,000 BTU output, making it ideal for households with high hot water demands. This model supports 4-6 taps simultaneously, ensuring that your family can enjoy endless hot water without interruption.
Where It Excels
- 30% lighter than the leading competitor, making installation easier and more manageable, especially in tight spaces.
Where It Lags
- Fewer color options than some brands like Rinnai, which may limit aesthetic choices for those concerned with matching home decor.
For those who prioritize efficiency and space-saving design, the Ranein model is an excellent choice. Its advanced technology maintains a steady temperature, automatically adjusting flow and heat to prevent sudden changes, which is particularly beneficial for daily showers. The bottom-mounted blower design enhances safety by preventing smoke backflow and operates quietly, ensuring a comfortable environment.
Additionally, this heater is energy-efficient, heating water on demand and significantly reducing utility costs compared to traditional tank heaters. If weight matters most in your selection process, the Ranein is a standout option that combines performance and convenience for modern living.
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GASLAND Gasmart 199000 BTU Tankless Water Heater
In a market flooded with water heaters, the GASLAND Gasmart E 199000 BTU Tankless Water Heater stands out by offering unlimited hot water on demand while being energy-efficient and space-saving. This feature is particularly appealing for homeowners who need consistent hot water without the wait associated with traditional tank heaters.
Where It Excels
- 34% more energy-efficient than a standard 50-gallon tank water heater, thanks to its impressive UEF of 0.8.
Where It Lags
- Fewer customization options compared to competitors like the Rinnai RUC98i, which offers more advanced features and settings.
Pick the GASLAND Gasmart if space and energy efficiency matter most to you. Its compact design allows it to fit into tight spaces, making it ideal for smaller homes or apartments. Additionally, the tankless system ensures that you’ll never run out of hot water, providing a seamless experience for families and individuals alike. However, if you’re looking for a unit with extensive customization options and advanced features, you might want to consider alternatives like the Rinnai. Overall, the GASLAND Gasmart offers a reliable solution for those prioritizing efficiency and space-saving design.
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Faq about 65 Gallon Gas Water Heater:
1:What is a 65 gallon gas water heater?
A 65 gallon gas water heater is a large capacity appliance designed to heat water using natural gas or propane, providing ample hot water for households with high demand.
2:What are the benefits of a 65 gallon gas water heater?
Benefits include faster recovery rates, lower operating costs compared to electric models, and the ability to supply hot water for larger families or multiple appliances simultaneously.
3:How efficient is a 65 gallon gas water heater?
Efficiency varies by model, but many 65 gallon gas water heaters have an Energy Factor (EF) rating between 0.60 and 0.80, indicating good energy efficiency.
4:How long does a 65 gallon gas water heater last?
Typically, a 65 gallon gas water heater lasts between 10 to 15 years with proper maintenance and care.
5:What maintenance is required for a 65 gallon gas water heater?
Regular maintenance includes flushing the tank annually, checking the anode rod, and inspecting gas connections for leaks to ensure optimal performance.
6:Can I install a 65 gallon gas water heater myself?
While DIY installation is possible, it is recommended to hire a professional plumber to ensure safety and compliance with local codes.
Conclusion
Both the Rinnai RXP199iN and the ThermoMate 102,000 BTU exemplify cutting-edge technology in the water heating sector. The Rinnai model stands out for its superior efficiency and compact design, making it an ideal choice for space-constrained environments while delivering an endless supply of hot water.
Conversely, the ThermoMate offers robust heating capacity, catering to larger households with high demand, ensuring optimal performance under pressure. Each product caters to distinct needs, reflecting advancements in energy efficiency and user convenience, thereby enhancing overall satisfaction in domestic water heating solutions.





