When you’re living the RV lifestyle, having a reliable source of hot water is crucial. Whether for a warm shower after a long day of hiking or washing dishes after a hearty meal, a dependable RV water heater makes all the difference.
In this comprehensive guide, we’ll examine the best RV water heaters of 2024. We will provide detailed reviews, installation tips, and maintenance advice to help you make an informed decision.
Let’s get started!
Understanding RV Water Heaters
Types of RV Water Heaters
RV water heaters come in various types, each with its advantages and considerations. The main types include tankless and tank water heaters, as well as gas and electric models.
Tankless vs. Tank
Tankless Water Heaters: These heaters, also known as on-demand water heaters, provide hot water only when you need it. They are compact, energy-efficient, and ideal for RVs where space is at a premium. However, they can be more expensive upfront.
Tank Water Heaters: Traditional tank water heaters store a certain amount of hot water ready for use. They are generally less expensive initially but take up more space and can run out of hot water if used extensively.
Gas vs. Electric
Gas Water Heaters: These heaters use propane or natural gas to heat the water. They are efficient and heat water quickly, making them ideal for off-grid situations. However, they require a consistent gas supply and proper ventilation.
Electric Water Heaters: These heaters use electricity to warm the water. They are convenient when you have access to a reliable power source, but they can be slower to heat up and may not be suitable for boondocking or off-grid camping.
Key Features to Consider
When choosing an RV water heater, several key features should influence your decision:
- Efficiency: Look for models that provide the best energy efficiency to save on fuel or electricity.
- Size and Compatibility: Ensure the heater fits your RV’s space and plumbing configurations.
- Ease of Installation: Some models are easier to install than others, especially if they are designed as direct replacements for older units.
- Safety Features: Consider models with features like freeze protection, overheat protection, and automatic shut-off for added safety.
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Detailed Reviews of the Best RV Water Heaters
1. FOGATTI RV Tankless Water Heater, InstaShower 8 Plus
Specification: Capacity: 2.9 Gallons | Power Source: Liquid Propane | Product Dimensions: 15″W x 15″H | Voltage: 12 Volts (DC) | Item Weight: 30.5 pounds | Style: InstaShower 8 Plus
The FOGATTI RV Tankless Water Heater, InstaShower 8 Plus, Gen 2, is an exceptional choice for RV enthusiasts who demand consistent and reliable hot water.
This model has a 15 x 15 inches black door and a remote controller, making it a versatile and convenient option for RVers. It is designed for high-altitude performance and’s ideal for everyday use in various environments.
One of the standout features of the FOGATTI InstaShower 8 Plus is its high altitude suitability mode, which allows it to operate smoothly even at altitudes as high as 9,800 feet.
This is particularly useful for those who enjoy traveling to mountainous regions. The staged combustion technology helps control the flame intensity in summer, preventing overheating and conserving propane.
Pros:
- High altitude suitability mode
- Continuous hot water supply
- Includes built-in pressure relief valve
- Multiple safety features
- Easy replacement for various models
Cons:
- May require retrofitting for larger 10-gallon tank models
Personal Insight:
During a trip to the Rockies, the FOGATTI InstaShower 8 Plus’s high altitude mode was a game-changer. Even at 9,000 feet, we enjoyed consistent hot water without any issues, and the staged combustion technology saved us a significant amount of propane.
How does the freeze protection work?
The FOGATTI RV Tankless Water Heater automatically monitors surrounding air temperatures and adjusts the heat output and water temperature to prevent freezing. This ensures reliable operation even in cold climates, making it an excellent choice for year-round RV adventures.
2. Girard 2GWHAM
Specification: Power Source: Wind Powered, Ac/dc-12 Volt | Capacity: 6 Gallons | Material: Silicone | Item Weight: 22 Pounds | Product Dimensions: 12.5″W x 12.5″H |
The Girard 2GWHAM is often hailed as the king of RV tankless water heaters. This model is designed for winter use, featuring robust freeze protection and whisper-quiet operation. It delivers an impressive 42,000 BTUs, ensuring hot water even in the coldest conditions.
This tankless water heater automatically monitors the surrounding air temperature and adjusts the heat output and water temperature accordingly. Its hot and cold water storage tank gives it a mini tank feel, but don’t be fooled; it’s an instant, tankless option.
It redefines the power of the British thermal unit, easily hitting 42,000 BTUs. Additionally, the heater promises to power up your hot shower using half the propane energy of standard water heaters.
Key Features:
- Winter use with freeze protection
- High BTU output of 42,000
- Whisper-quiet operation
Pros:
- Excellent for cold weather
- High heating capacity
Cons:
- Expensive initial investment
- Lower water pressure compared to other models
Personal Insight:
During a snowy camping trip, the Girard 2GWHAM’s freeze protection kept our water supply hot and reliable, a true lifesaver in freezing temperatures.
How does the freeze protection work?
The Girard 2GWHAM features automatic monitoring of surrounding air temperatures, adjusting heat output and water temperature to prevent freezing.
3. Excel Vent-free LPG
Specification: Power Source: PROPANE LPG GAS | Style: Indoor Installation | Capacity: 1.6 Gallons | Material: Rubber | Item Weight: 12 pounds | Product Dimensions:11.5″W x 16″H
Excel’s Vent-free LPG water heater is a compact and efficient solution, ideal for smaller RVs or those with limited space. This model uses minimal propane and heats water on demand.
It’s perfect for point-of-use applications, offering an efficient and cost-effective way to get hot water quickly.
It runs on a 20-gallon propane tank with a battery-operated ignition device. The unit has mounting hardware and a bright LED display, so you always know what temperature to expect. It’s suitable for budget-conscious RVers who need a lightweight and easy-to-install heater.
Key Features:
- Compact design fits easily in tight spaces
- Efficient gas usage for cost savings
Pros:
- Easy installation with minimal space requirements
- Cost-effective operation
Cons:
- Requires proper ventilation for safe use
Personal Insight:
The Excel Vent-free LPG’s compact size made it a perfect fit for our small RV, and its efficient gas usage kept our propane costs down.
Is this suitable for high-altitude use?
Yes, the Excel Vent-free LPG is designed to function efficiently at high altitudes, making it a versatile choice for various camping conditions.
4. Suburban SW6DE
Specification: Capacity: 6 Gallons | Power Source: Wind Powered (12 Volt DC) | Material: Alloy Steel | btu rating: 12,000 With Insulation
Suburban’s SW6DE model is a favorite for its durability and quick recovery times. This tank water heater stores a set amount of water and heats it efficiently. Its reliable design makes it a long-lasting choice for RVers who need consistent hot water.
The unit is built to last with robust materials and a straightforward design. Regular maintenance will keep it running smoothly for years, making it a great investment for those who use their RV frequently.
Key Features:
- Durable design with a porcelain-lined steel tank
- Quick recovery rate for continuous hot water
Pros:
- Long-lasting and reliable
- Efficient recovery rate ensures hot water availability
Cons:
- Larger size requires more installation space
Personal Insight:
The Suburban SW6DE’s quick recovery rate was a game-changer during our extended stays, ensuring we never ran out of hot water.
How to maintain this heater for longevity?
Regularly check the anode rod, flush the tank to remove sediment, and inspect the burner assembly for optimal performance.
5. Furrion 2.4GPM Tankless RV Gas Water Heater
Specification: Capacity: 2.4 Gallons | Product Dimensions: 16.14″W x 16.14″H | 60K BTU heating power | Voltage: 12 Volts | Item Weight: 43.8 pounds |
Furrion’s 2.4GPM tankless water heater is known for its continuous operation and compact size, making it perfect for smaller RVs. It’s designed to handle high altitudes and operates efficiently even in freezing temperatures.
The unit features a high-altitude mode and can be installed by yourself with little trouble.
This propane-powered unit is offered in various door sizes to suit different needs. It’s built with durable, vibration-resistant components to ensure stable performance on the road.
Key Features:
- Continuous operation even in freezing temperatures
- Compact and durable design with vibration resistance
Pros:
- Suitable for high-altitude use
- Built to withstand vibrations and rough travel conditions
Cons:
- Limited capacity, best for smaller RVs
Personal Insight:
The Furrion 2.4GPM provided us with a steady stream of hot water, even at high altitudes, making our mountain trips much more comfortable.
Can it be used in extremely cold temperatures?
Yes, the Furrion 2.4GPM is designed to function efficiently even in freezing conditions, providing reliable hot water.
6. Camplux 2.64 GPM Tankless Propane Water Heater
Specification: Flow Rate: 2.64 GPM | Type: Tankless | Fuel Type: Propane | Weight: 18 lbs | Dimensions: 13″W x 21.6″H x 7.3″D | Material: Stainless Steel, Plastic
The Camplux 2.64 GPM model is highly portable and versatile, suitable for both indoor and outdoor installations. It’s lightweight and energy-efficient, making it a favorite among DIY enthusiasts.
This model includes features like an eco/full switch to save propane in the summer months and dry combustion protection.
The ignition system is linked to a pair of D-Cell alkaline batteries, which lets you truly run this quiet tankless water heater off the grid.
Key Features:
- Portable design suitable for various installation setups
- Energy-efficient operation to save on propane
Pros:
- Lightweight and easy to install
- Features energy-saving technology
Cons:
- Not suitable for high elevations above 2000 feet
Personal Insight:
The Camplux 2.64 GPM was our go-to for outdoor showers during summer camping trips, thanks to its portable and efficient design.
How to install the unit in an RV?
Follow the manufacturer’s instructions for proper ventilation and secure mounting. Ensure compatibility with your RV’s water system.
7. Bosch Electric Mini-Tank Water Heater
Specification: Capacity: 7 gallons | Type: Mini-Tank | Fuel Type: Electric | Weight: 29 lbs | Dimensions: 13.75″W x 13.75″H x 13.75″D | Material: Glass-Lined Tank, Plastic
Bosch’s Electric Mini-Tank water heater is perfect for RVs with limited space. This point-of-use mini-tank fits neatly under sinks and provides around 15 minutes of hot water. Its compact size and easy installation make it ideal for small spaces.
The unit heats water fast and only requires around 30 minutes to recover. It’s an excellent choice for RVers needing a reliable and compact hot water solution.
Key Features:
- Compact mini-tank design fits under sinks and in tight spaces
- Provides instant hot water with a seven-gallon capacity
Pros:
- Easy to install and highly efficient for small tasks
- Compact size saves space
Cons:
- Limited hot water supply for larger needs
Personal Insight:
We installed the Bosch Electric Mini-Tank under our kitchen sink, and it provided quick hot water for washing dishes and cooking.
Is it suitable for larger RVs?
While ideal for smaller applications, it may not meet the hot water demands of larger RVs or multiple users simultaneously.
8. Dometic WH-6GEA
Specification: Capacity: 6 gallons | Type: Tank | Fuel Type: Gas/Electric | Weight: 45 lbs | Dimensions: 16″W x 16″H x 20″D | Material: Aluminum, Plastic
Dometic’s WH-6GEA offers dual fuel options and quick recovery times, making it a versatile choice. Although this model is a bit heavier than others, its high capacity and dual fuel capabilities make it reliable for various RV setups.
The unit is designed for both gas and electric operation, providing flexibility for different travel conditions. Its durable construction ensures long-term use, making it a sound investment for frequent travelers.
Key Features:
- Dual fuel capability with quick recovery times
- High capacity suitable for most RV needs
Pros:
- Versatile installation options with both gas and electric heating
- High efficiency and quick heating
Cons:
- Heavier than some other models, requiring sturdy installation
Personal Insight:
The dual fuel options of the Dometic WH-6GEA provided us with flexibility, allowing us to switch between gas and electric depending on availability.
How to switch between gas and electric modes?
Refer to the owner’s manual for detailed instructions on switching between fuel sources and optimizing performance.
9. Eccotemp L5 1.5 GPM Portable Tankless Water Heater
Specification: Capacity: 5 Liters | Type: Tankless | Fuel Type: Propane | Weight: 27 lbs | Dimensions: 13.75″W x 13.75″H x 13.75″D | Material: Metal | Item Weight: 11.2 Pounds
The Eccotemp L5 is a portable and efficient tankless water heater. It’s lightweight and comes with necessary accessories like a showerhead and quick connect. This model is ideal for campers and smaller RV setups, providing efficient heating and easy portability.
This model heats water on demand, making it perfect for off-grid adventures. It’s designed to be installed easily and provides a reliable source of hot water wherever you go.
Key Features:
- Connects easily to a standard garden hose
- Provides up to 1.5 gallons per minute of hot water
Pros:
- Simple setup and lightweight design
- Efficient use of propane for heating
Cons:
- Limited flow rate for extensive use
Personal Insight:
The Eccotemp L5 was perfect for our weekend camping getaways, providing just enough hot water for showers and dishwashing without taking up much space.
How to connect to a water source?
Simply attach the unit to a standard garden hose and propane tank for instant hot water.
Installation and Maintenance Tips for RV Water Heaters
Installation Guidelines
Installing an RV water heater can seem daunting, but with the right approach, it’s straightforward.
Step-by-Step Installation Process
- Choose the Right Location: Ensure there is adequate space and ventilation.
- Prepare the Area: Remove any old units and clean the space.
- Connect Plumbing and Gas Lines: Securely connect the water and gas lines to the heater.
- Secure the Heater: Mount the unit according to manufacturer instructions.
- Test the System: Check for leaks and ensure the heater is functioning correctly.
Common Installation Mistakes to Avoid
- Improper Ventilation: Ensure the exhaust is properly vented to avoid the buildup of harmful gases.
- Loose Connections: Double-check all water and gas connections for tightness.
- Ignoring Manufacturer Instructions: Always follow the specific instructions provided with your unit.
Maintenance Tips
Regular maintenance is key to keeping your RV water heater running smoothly.
Regular Maintenance Schedule
- Monthly: Inspect for leaks and check the burner assembly.
- Bi-Annually: Flush the tank to remove sediment.
- Annually: Replace the anode rod if applicable, and inspect the overall system.
Troubleshooting Common Issues
- No Hot Water: Check the power supply or propane levels and ensure the thermostat is set correctly.
- Low Water Pressure: Inspect the water lines for obstructions and clean the water filter.
- Water Heater Not Igniting: Ensure there is a sufficient gas supply and check the ignition system for any faults.
Conclusion
Choosing the right water heater for your RV is essential for a comfortable and convenient travel experience. From the robust and winter-ready Girard 2GWHAM to the portable and efficient Eccotemp models, there’s an option for every need and budget. By understanding the different types of water heaters, key features to look for, and proper installation and maintenance tips, you can ensure a reliable hot water supply for all your adventures.
Remember, a well-maintained water heater not only enhances your comfort but also extends the lifespan of your appliance, providing you with many years of reliable service. Happy camping!
Hi, I’m Engineer Hm Jamal, founder of Green Mark Engineering. With 13 years in the home improvement industry, I’m passionate about creating sustainable, high-quality solutions for homes. My focus is on making your home improvement experience smooth and successful. Whether it’s a renovation or a new project, I’m here to ensure it’s done right.
