Best Rheem Gas Hot Water Tanks Reviewed

Inconsistent hot water can be a frustrating issue for homeowners, especially during peak usage times when multiple showers or appliances are running. The right gas hot water tank can solve this problem, ensuring a steady supply of hot water when you need it most. Whether you’re replacing an old unit or upgrading to a more efficient model, making the right choice is crucial.

Rheem is a trusted name in the water heating industry, known for their reliability, efficiency, and innovative technology. A great gas hot water tank should provide sufficient hot water for your household size, operate efficiently to save on energy costs, and fit your installation space. With so many options available, it helps to narrow down the choices based on specific features and real-world performance.

In this roundup, we’ll take a close look at five top Rheem gas hot water tanks, exploring their unique strengths and potential drawbacks to help you find the best fit for your home.

Comparing key specifications can help you make an informed decision:

Features	Rheem SP20867C	Rheem RTG 8.4 GPM	Rheem RTG 7.0 GPM	Rheem RTGH 8.4 GPM	Rheem PROG50-36P
Type	Control Valve Kit	Tankless	Tankless	Tankless	50-Gallon Tank
GPM	N/A	8.4	7.0	8.4	N/A
BTUs	N/A	180,000	160,000	157,000	36,000
Energy Factor	N/A	0.82	0.82	0.93	N/A
Best Use Case	Replacement Part	Large Family	Medium Family	Large Family	Residential Use

Rheem SP20867C Natural Ga…

The Rheem SP20867C is a natural gas water heater control valve kit designed for easy installation and efficient operation. It’s best suited for homeowners needing a direct replacement part for their Rheem, Ruud, or Richmond gas water heaters.

This kit stands out for its compatibility with a wide range of Rheem models, making it a reliable choice for those looking to maintain their existing systems. The installation instructions are straightforward, allowing for a hassle-free setup. The one-year limited warranty also provides peace of mind for buyers.

While this product serves a specific purpose, it lacks the broader features found in full water heater systems. It’s essential to ensure compatibility with your existing unit.

• Includes gas valve and instructions
• Compatible with various Rheem models
• OEM factory authorized part
• 1-year limited warranty
• Easy installation

Best for: Homeowners needing a replacement gas valve for Rheem water heaters.

Rheem RTG Series 8.4 GPM…

The Rheem RTG Series 8.4 GPM is a high-performance tankless water heater ideal for large households that require a continuous supply of hot water. With a flow rate of 8.4 gallons per minute, it’s perfect for homes with multiple bathrooms and simultaneous water demands.

This model excels in energy efficiency with a 0.82 Uniform Energy Factor, which translates to substantial savings on energy bills. The unit features advanced safety systems, including built-in freeze protection and flame failure protection, ensuring safe operation all year round.

One limitation is that it requires professional installation, which can add to initial costs. Also, it’s designed for outdoor installation, which may not suit all properties.

• 8.4 GPM flow rate
• 180,000 BTUs output
• 0.82 UEF energy efficiency
• Outdoor installation only
• 15-year heat exchanger warranty

Best for: Large families needing endless hot water for multiple fixtures.

Rheem RTG Series 7.0 GPM…

This indoor tankless water heater offers a 7.0 GPM flow rate, making it suitable for medium to large homes. Like its 8.4 GPM counterpart, it provides an endless supply of hot water, perfect for homes with 2-3 simultaneous showers.

This model also boasts a 0.82 UEF, ensuring energy savings compared to traditional electric tanks. An added feature is the LeakGuard system that detects and prevents water leaks, enhancing safety and reducing potential water damage.

While it packs a lot of features, some users have reported a learning curve with the digital temperature control panel. Additionally, it requires indoor installation with a direct vent, which could limit placement options.

• 7.0 GPM flow rate
• 160,000 BTUs output
• LeakGuard leak detection
• 0.82 UEF energy efficiency
• 5-year parts warranty

Best for: Medium households requiring reliable hot water with leak protection.

Rheem RTGH Series 8.4 GPM…

The Rheem RTGH Series 8.4 GPM is a condensing tankless water heater designed for indoor use. With a powerful output of 157,000 BTUs, it delivers hot water on demand for large families or homes with multiple bathrooms.

This model’s standout feature is its ultra-high efficiency with a 0.93 UEF, which means lower energy costs. It also complies with low NOx emissions standards, making it an environmentally friendly choice.

On the downside, it requires professional installation, and the upfront cost may be higher compared to traditional tank systems. Additionally, the complexity of the system might be daunting for some homeowners.

• 8.4 GPM flow rate
• 157,000 BTUs output
• 0.93 UEF energy efficiency
• Condensing technology
• 5-year parts warranty

Best for: Environmentally conscious homeowners needing high efficiency and performance.

Rheem PROG50-36P RH62 Pro…

The Rheem PROG50-36P is a traditional 50-gallon atmospheric liquid propane gas water heater. This model is well-suited for residential use, particularly in homes without access to natural gas lines.

This unit stands out for its eco-friendly low emissions burner, which meets strict NOx regulations. The EverKleen patented system helps prevent sediment buildup, prolonging the tank’s lifespan and improving efficiency.

However, being a conventional tank system, it occupies more space compared to tankless options. Additionally, it has a lower energy factor than tankless models, which could lead to higher energy bills over time.

• 50-gallon capacity
• 36,000 BTUs output
• Low NOx burner
• EverKleen sediment prevention
• Enhanced-flow brass drain valve

Best for: Homeowners needing a reliable traditional water heater.

How We Chose These Products

Our selection process involved evaluating various Rheem gas hot water tanks based on performance, energy efficiency, and user feedback. We focused on models that offer reliable hot water supply, safety features, and the ability to meet different household needs. Additionally, we considered the ease of installation and maintenance aspects.

We also analyzed real-world user reviews and expert opinions, ensuring our recommendations are based on comprehensive insights from actual users. This approach guarantees that the products listed here are among the best in their respective categories.

Buying Guide: What Really Matters

When choosing a gas hot water tank, consider the size and capacity needed for your household. The flow rate, measured in gallons per minute (GPM), is crucial for ensuring enough hot water for simultaneous uses, like showers and washing machines. Energy efficiency ratings, such as the Uniform Energy Factor (UEF), indicate how well the unit converts energy into hot water, impacting long-term operating costs.

Installation type also matters. Tankless models save space and offer on-demand hot water but require professional installation and may be more expensive upfront. Traditional tanks are easier to install but take up more room and can lead to higher energy bills. Lastly, check warranty options to ensure long-term reliability.

Our Top Recommendation

The Rheem RTGH Series 8.4 GPM stands out as the top recommendation due to its high efficiency, ample flow rate, and eco-friendly design. It’s perfect for large families needing a constant hot water supply while being mindful of energy costs. For those on a tighter budget or seeking a simpler solution, the Rheem PROG50-36P offers a reliable traditional tank option.

Frequently Asked Questions

1. What is the lifespan of a Rheem gas hot water tank?
A Rheem gas hot water tank typically lasts 10 to 15 years, depending on maintenance and usage.

2. Can I install a tankless water heater myself?
While some homeowners may attempt a DIY installation, professional installation is recommended for tankless water heaters for safety and efficiency.

3. How do I maintain my gas water heater?
Regular maintenance includes flushing the tank to remove sediment buildup, checking the anode rod, and inspecting the gas connections for leaks.

4. What should I consider when switching from a tank to a tankless system?
Consider your household’s hot water needs, the installation space available, and the potential for higher upfront costs compared to traditional tanks.