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When you’re on the road, few things feel better than a warm shower after a day of exploring. But finding the best RV water heater can be challenging with so many options out there. Whether you’re living full-time in your rig or planning extended road trips, a reliable water heater for RV life is essential. Without it, you’re left with cold showers, dishwashing nightmares, and an overall lack of comfort. That’s why selecting the best RV hot water heater is a crucial decision for any camper. There are two main types of RV water heaters to choose from: tank-style and tankless. Each has its pros and cons, and in this guide, we’ll help you understand both before showcasing our top picks. These recommendations for the best water heater for RV were evaluated based on performance, durability, energy efficiency, and customer satisfaction, helping you find the best RV water heaters for your adventures.
Understanding RV Water Heater Types
Tank-Style RV Water Heaters
Tank-style water heaters are the traditional option found in many RVs. These models typically come with a capacity between 6 to 12 gallons and operate by heating a stored amount of water in advance. Once that water is used up, it takes time to recover and reheat.
The main advantages of tank water heaters are their reliability and immediate hot water availability after heating. Most units run on either propane, electricity, or both, providing flexibility depending on your power setup. While they don’t offer endless hot water, they’re a favorite among seasoned RVers for their simplicity and predictability.
Tankless (On-Demand) RV Water Heaters
Tankless RV water heaters provide hot water only when needed, offering an unlimited supply so long as water and fuel sources are available. They are compact, making them a great space-saving solution, and they eliminate the need to wait for a tank to heat.
However, they typically rely heavily on propane and may introduce a short delay in hot water delivery. This delay can result in water waste, which is not ideal during boondocking or when conserving water is critical. While their upfront cost is higher, tankless units are often more efficient in the long run.
Top 5 Tank-Style RV Water Heaters
Suburban SW6DE
The Suburban SW6DE is a 6-gallon water heater for RV use that operates on both propane and electricity. It features a recovery rate of about 10.2 gallons per hour and includes a porcelain-lined tank for extended lifespan, supported by an anode rod to prevent corrosion.
With a compact design, it fits easily in most RVs and is known for its durability and consistent performance. This is one of the best RV hot water heater options for those looking for a reliable and easy-to-install model.
Atwood G6A-8E
Atwood’s G6A-8E offers similar 6-gallon capacity but stands out due to its aluminum tank, eliminating the need for an anode rod. It’s a lightweight unit known for fast heat-up times and efficient propane usage.
Operating at 8,800 BTU, it delivers a solid recovery rate and is especially attractive to those who want lower maintenance.
Suburban SW12DEL
Need more hot water for your family or longer showers? The Suburban SW12DEL offers a generous 12-gallon tank. It’s dual-powered and delivers up to 12 gallons of hot water per hour.
Despite its larger size, it’s relatively easy to install if your RV has the space. It’s one of the best water heater for RV models for large families or high-use campers.
Atwood GC10A-4E
This 10-gallon unit strikes a balance between capacity and compactness. It features electronic ignition, a 10,000 BTU rating, and efficient propane use. The aluminum tank ensures long life without needing an anode rod.
Its moderate size makes it a versatile option, and many users consider it a solid middle-ground model among the best water heaters available today.
Dometic G6A
The Dometic G6A is a 6-gallon best water heater with a straightforward, durable design. With over-the-air electronic ignition and propane operation, it’s user-friendly and has earned praise for dependable performance.
Its competitive pricing, excellent warranty, and customer support make it a go-to option for first-time RV owners.
Top 5 Tankless RV Water Heaters
Girard GSWH-2
A favorite among tankless fans, the Girard GSWH-2 offers 42,000 BTU output and a flow rate of up to 2.4 gallons per minute. Its advanced modulating technology adjusts gas usage based on the temperature of incoming water, ensuring steady heat output.
With freeze protection and automatic ignition, it’s one of the best RV water heaters for cold-weather travelers who want convenience and efficiency.
Truma AquaGo Comfort Plus
This premium best RV hot water heater combines a tankless system with a small buffer tank to reduce hot water delays. It provides excellent temperature stability and freeze protection, plus a decalcification system to extend unit life.
Though it comes at a higher price point, it’s often seen as the best water heater for RV luxury setups.
Camplux Pro 1.58 GPM
For those seeking affordability, the Camplux Pro offers 1.58 GPM flow, compact design, and safety features like flame failure protection. It’s easy to mount and ideal for smaller rigs or occasional users.
Despite its lower price, it earns a spot among the best RV water heaters for value-focused buyers.
Fogatti RV Tankless Water Heater
The Fogatti model includes digital temperature control, a 2.9 GPM flow rate, and multiple safety features. Its compact design and modern aesthetics make it a rising star among best RV hot water heater options.
It’s praised for rapid heating and is becoming a trusted alternative to more established brands.
EcoTemp L10
EcoTemp’s L10 is a versatile tankless heater that works for both indoor and outdoor use. Battery-powered ignition and a flow activation system make it perfect for off-grid adventures.
If you’re looking for flexibility and performance, this unit deserves a spot on your best RV water heater shortlist.
Key Factors to Consider When Choosing an RV Water Heater
Installation Requirements and Compatibility
Before purchasing, ensure the water heater for RV you’re eyeing fits the designated space. Consider whether your RV supports propane, electricity, or both. Some tankless models may require professional installation due to venting or electrical needs.
Always compare manufacturer specs with your RV’s layout to avoid surprises.
Water Usage Patterns and Capacity Needs
How many people are using the RV? Are you taking short showers or long, luxurious ones? Your usage habits will dictate whether a tank or tankless model is more appropriate.
Heavy users or families might lean toward larger tank-style options, while solo travelers or couples might enjoy the endless hot water from tankless units.
Power Source Availability
Propane-only models are great for boondocking, while electric units excel at campgrounds with full hookups. Dual-powered units offer the most flexibility. Choose a best water heater for RV that aligns with your camping habits.
Climate Considerations
If you’re traveling in colder regions, look for models with freeze protection or built-in insulation. Proper winterizing is essential to prevent damage, especially for tank models.
Some of the best RV hot water heater choices offer built-in safeguards for all-weather performance.
Installation and Maintenance Tips
Always follow manufacturer instructions closely during installation. Tank heaters need proper clearance and venting, while tankless units may need additional parts or professional setup.
Routine maintenance includes flushing tank models, replacing anode rods, and descaling tankless systems. Most best water heaters last 8–10 years with proper care. Signs of trouble include inconsistent water temps, strange noises, or visible rust.
Enjoy Hot Showers All Year Long—Stay Cozy at Black Hawk Creek RV Park
Ready to upgrade your RV’s hot water game? Pair your new water heater with a stay that matches your comfort needs year-round. At Black Hawk Creek RV Park & Cabins, we offer all-season accommodations designed for travelers who don’t compromise on comfort—no matter the weather. Plus, take advantage of our Custom Skirting promotion to keep your RV warmer and more energy-efficient all winter long. Whether you’re chasing the beauty of the Badlands or exploring the historic charm of Mount Rushmore, our park is your ideal base camp in South Dakota.
Book your stay today and experience the perfect blend of adventure and all-season comfort.