5 Best RV Water Heaters for Efficient Showers – Nomads Swear By

Nothing ruins your RV adventure faster than a cold shower after a long day of exploring the great outdoors. Your mobile home’s water heater plays a crucial role in maintaining comfort on the road, yet many travelers overlook this essential component until it fails.

We’ve researched and tested dozens of models to identify the top 5 RV water heaters that deliver reliable hot water without draining your battery or propane reserves. These efficient options will ensure you enjoy consistent, hot showers regardless of where your travels take you.

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Understanding RV Water Heater Basics: Types, Sizes, and Power Sources

How RV Water Heaters Differ From Home Units

RV water heaters are specifically designed for mobile living with compact dimensions and lower capacities than residential units. While home water heaters typically hold 40-80 gallons, RV models range from just 6-10 gallons. They’re built to withstand road vibrations with reinforced tanks and feature faster recovery rates to compensate for smaller capacities. Unlike home units, RV heaters must operate efficiently on limited power sources while maintaining safety in confined spaces.

Common Power Sources: Propane, Electric, and Dual Options

Propane heaters offer reliable heating without draining your battery, making them ideal for boondocking. They heat water faster than electric models but require propane tank refills and proper ventilation. Electric models work well when connected to shore power, eliminating combustion concerns and operating silently. Dual-powered (LP/electric) heaters provide the ultimate flexibility, allowing you to switch between power sources based on your camping situation or run both simultaneously for faster water heating.

1. Atwood GC6AA-10E 6-Gallon Gas/Electric RV Water Heater: The Reliable All-Rounder

Key Features and Technical Specifications

The Atwood GC6AA-10E offers impressive versatility with its dual power options of propane or electricity. It delivers a 6-gallon capacity with recovery rates of 10 gallons per hour on electric and 7.4 gallons per hour on propane. Measuring approximately 20.5″ × 16″ × 16″ and weighing 76 pounds, this unit includes foam insulation for heat retention and essential safety features like temperature and pressure relief valves.

Pros and Cons for Full-Time RVers

Pros: You’ll appreciate the adaptability between propane and electric power sources, perfect for varying camping conditions. The faster recovery rate on electric mode ensures consistent hot water for daily use. Its reliable performance and standard sizing make it compatible with most RV compartments.

Cons: The limited 6-gallon capacity might frustrate larger families needing longer showers. While versatile, the unit requires regular maintenance including anode rod checks. It’s also considerably heavier than tankless alternatives, consuming more space in your rig.

2. Suburban SW6DE 6-Gallon Gas/Electric RV Water Heater: Maximum Recovery Rate

The Suburban SW6DE stands out as a versatile dual-fuel water heater that ensures you’ll never run out of hot water during your RV adventures. This 6-gallon powerhouse operates on both propane and electricity, making it an excellent choice for various camping scenarios.

What Makes the Suburban Stand Out

The SW6DE’s dual fuel capability lets you run on propane while boondocking or switch to electric when hooked up to shore power. Its impressive recovery rate shines brightest when using both power sources simultaneously, minimizing wait times between showers. The porcelain-lined tank with protective anode rod significantly extends the unit’s lifespan by preventing corrosion—a common issue in RV water heaters.

Installation Tips and Maintenance Requirements

When installing the SW6DE, ensure you have adequate space for the 6-gallon tank and follow proper venting guidelines for safe operation. All electrical and gas connections must adhere to manufacturer specifications to prevent hazards. Maintenance is straightforward but essential—regularly inspect the anode rod, clean the unit to prevent corrosion, and check all connections for leaks. Following the manufacturer’s maintenance schedule will maximize your heater’s performance and longevity.

3. Girard 2GWHAM On-Demand Tankless Water Heater: Endless Hot Water Supply

The Girard 2GWHAM stands out in the RV water heater market by offering what traditional tank heaters simply can’t—an unlimited supply of hot water on demand. This propane-powered unit eliminates the frustration of running out of hot water mid-shower, making it perfect for RVers who don’t want to compromise on comfort.

Benefits of Tankless Technology for RV Living

Tankless water heaters transform how you shower in your RV by heating water only when needed. You’ll appreciate the space savings this compact unit provides compared to bulky tank models. The Girard 2GWHAM features built-in freeze protection that automatically activates in cold weather, making it ideal for year-round camping. With adjustable temperature controls, you’ll enjoy personalized comfort while extending the unit’s lifespan through reduced corrosion risk.

Energy Efficiency and Performance Analysis

The Girard 2GWHAM significantly reduces propane consumption by operating only when hot water is actively flowing. You’ll notice immediate energy savings since it doesn’t waste fuel maintaining a tank of hot water. Its adjustable settings let you fine-tune water temperature to optimize both comfort and efficiency. Performance remains consistent regardless of outside temperatures, delivering reliable hot water for multiple consecutive showers without recovery periods—a major advantage for families or longer stays at remote campsites.

4. Camplux 5L Portable Tankless Propane Water Heater: Budget-Friendly Option

If you’re looking for an affordable yet reliable water heating solution for your RV adventures, the Camplux 5L Portable Tankless Propane Water Heater delivers exceptional value. This cost-effective option is specifically designed for outdoor use, making it perfect for RVers who need hot water without breaking the bank.

Versatility for Various RV Sizes

The Camplux 5L shines with its adaptable design that works beautifully in virtually any RV size. Its compact and portable construction makes it ideal for smaller campers where space is at a premium. You’ll appreciate how this versatile heater delivers reliable hot water whether you have a compact travel trailer or a mid-sized motorhome, eliminating the bulkiness associated with traditional tank-style heaters.

Setup Process and Space-Saving Design

Installation couldn’t be simpler with the included accessories like a gas regulator and shower head that streamline the setup process. The Camplux 5L’s space-efficient design is a game-changer for RVs where every inch counts. You’ll free up valuable storage space compared to conventional water heaters while still enjoying on-demand hot water for showers, dishes, and other camping necessities.

5. Fogatti 5L Tankless RV Water Heater: Cutting-Edge Features

The Fogatti 5L delivers impressive performance with cutting-edge technology designed specifically for RV living. This compact powerhouse combines efficiency with innovative features to transform your camping shower experience.

Smart Technology Integration

The Fogatti 5L incorporates an automatic pulse ignition system that ensures reliable startup every time you need hot water. Its advanced digital temperature controls allow you to set your ideal shower temperature with precision. The unit operates at an impressive 84% efficiency, maximizing your propane usage while delivering a generous 2.9 GPM flow rate—plenty for comfortable showers without wasting resources.

Freeze Protection and Safety Features

Your safety is prioritized with the Fogatti’s comprehensive protection systems. The built-in freeze protection automatically activates in cold weather, preventing costly damage during winter camping trips. The forced-type exhaust system safely vents all combustion gases, eliminating risks in enclosed spaces. Additional safety features include flame failure protection and overheat prevention, giving you peace of mind whether you’re showering or away from your RV.

How to Choose the Right RV Water Heater for Your Specific Needs

When selecting an RV water heater, you’ll need to consider several key factors to ensure you get the perfect match for your travel style and specific requirements.

Power Source

Choose between propane, electric, or combination models based on how you typically camp. Propane heaters like the Girard 2GWHAM and Fogatti InstaShower 8Plus deliver excellent efficiency when boondocking off-grid. Electric models work best when you’re frequently connected to shore power. Dual-fuel options offer maximum flexibility, allowing you to switch between energy sources depending on availability.

Water Flow Rate

Pay close attention to the gallons per minute (GPM) rating to ensure sufficient hot water for your needs. The Fogatti InstaShower 8Plus delivers an impressive 2.9 GPM, while the Kohree model provides 2.64 GPM. Higher flow rates mean you’ll enjoy consistent water pressure during showers, even when running multiple fixtures simultaneously.

Safety Features

Don’t compromise on safety features when selecting your RV water heater. Look for models with flame failure protection, anti-freeze functions, and proper venting systems. Many newer models like the Kohree and Fogatti units include automatic shutoff protection if temperatures become unsafe, providing peace of mind during operation.

Energy Efficiency

Consider heaters with high efficiency ratings to maximize your resources. The Fogatti InstaShower 8Plus operates at 84% efficiency, significantly reducing propane consumption. Tankless models generally offer better efficiency since they only heat water on demand rather than maintaining a constantly hot tank.

Sizing Considerations Based on RV Type

For small RVs and van conversions, compact models like the Kohree Tankless Water Heater and Camplux Outdoor units provide the perfect balance of performance and space-saving design. Their lightweight construction and minimal footprint make installation straightforward in limited spaces.

Larger motorhomes and family-friendly RVs benefit from higher-capacity options like the Girard 2GWHAM or Fogatti InstaShower 8Plus. These powerful units offer the increased flow rates necessary to handle multiple simultaneous users without temperature fluctuations.

Installation Complexity and Professional vs. DIY Options

Many tankless models like the Kohree and Camplux come with comprehensive installation kits including regulators, hoses, and shower attachments, making them accessible DIY projects. Their straightforward connections typically require basic tools and moderate technical ability.

For more complex installations involving venting systems or electrical work, professional installation might be worth the investment. This is particularly true for the Fogatti InstaShower 8Plus with its specialized forced exhaust system. Professional installation ensures proper performance and prevents potential safety issues down the road.

Maintenance Tips to Extend the Life of Your RV Water Heater

Proper maintenance of your RV water heater ensures reliable hot showers and extends the unit’s lifespan. Regular upkeep prevents costly repairs and unexpected breakdowns during your travels.

Regular Checks

• Inspect your water heater monthly for signs of leaks, rust, or damaged connections
• Test the temperature and pressure relief valve by lifting the lever and confirming water discharge
• Check the anode rod (if applicable) every 6 months and replace when deteriorated to 75%
• Examine gas lines and fittings for propane models to detect potential leaks
• Verify electrical connections are secure and corrosion-free on electric models

Seasonal Maintenance Schedule

Before Winter

• Drain the water heater completely using the drain plug to prevent freeze damage
• If your model has built-in freeze protection like the Girard 2GWHAM, ensure it’s functioning properly
• Consider using RV antifreeze in the system for added protection in extreme cold

Before Summer

• Flush the tank to remove sediment buildup that reduces efficiency
• Clean the burner assembly on propane models to ensure proper flame
• Check venting systems for blockages that could lead to carbon monoxide issues

Troubleshooting Common Problems

No Hot Water

• Verify your propane tank isn’t empty or the electrical connections aren’t loose
• Check the thermostat settings and reset if necessary
• Inspect the heating element for damage or failure
• Ensure proper venting for propane models like the Fogatti InstaShower 8Plus

Water Leaks

• Inspect connection points, especially around temperature and pressure relief valves
• Check for tank corrosion, particularly if you’ve neglected anode rod replacement
• Tighten loose fittings but avoid overtightening which can cause damage

Temperature Fluctuations

• Clean sediment from tankless models to maintain consistent water flow
• Check for low water pressure issues, which the Kohree Tankless Water Heater handles well
• Verify thermostat functionality and replace if inconsistent

Final Verdict: Comparing Value, Performance, and Reliability

Choosing the perfect RV water heater means balancing your specific needs with practical considerations. Whether you opt for the versatile Atwood GC6AA-10E the high-recovery Suburban SW6DE or the unlimited hot water of a tankless Girard model each option offers distinct advantages for your mobile lifestyle.

For budget-conscious travelers the Camplux 5L delivers impressive value while tech-savvy RVers will appreciate the Fogatti’s smart features and efficiency. Remember to factor in your power preferences tank capacity and available space when making your decision.

With the right water heater installed and properly maintained you’ll enjoy reliable hot showers regardless of where your adventures take you. Your perfect RV oasis awaits—just turn the tap and relax under a stream of steady hot water after a day of exploration.

Frequently Asked Questions

What size water heater do I need for my RV?

The ideal size depends on your RV type and usage needs. Smaller RVs and trailers typically work well with 6-gallon tanks or compact tankless heaters. Larger motorhomes may require 10-gallon tanks or higher-capacity tankless models. Consider how many people will be using hot water simultaneously and your typical shower duration when choosing the appropriate size.

What’s the difference between tank and tankless RV water heaters?

Tank water heaters store and continuously heat a fixed amount of water (usually 6-10 gallons), providing hot water until the tank empties. Tankless heaters heat water on demand as it flows through the unit, offering unlimited hot water without waiting for recovery. Tankless models are more compact and energy-efficient but typically cost more upfront than traditional tank models.

How do I maintain my RV water heater?

Perform monthly inspections for leaks and test the temperature/pressure relief valve. For tank models, flush the system annually to remove sediment buildup. Check anode rods (if applicable) and replace when significantly corroded. For propane models, inspect gas lines and connections. Always drain your water heater before winter storage to prevent freeze damage and follow manufacturer-specific maintenance guidelines.

Can I replace my RV water heater myself?

Many RV water heaters can be replaced by DIYers with basic tools and mechanical skills. Tankless models often come with installation kits for easier replacement. However, working with propane lines requires caution. If you’re uncomfortable with gas connections or electrical work, professional installation is recommended for safety. Always follow manufacturer instructions and RV-specific guidelines during installation.

How long do RV water heaters typically last?

With proper maintenance, tank-style RV water heaters typically last 8-10 years. Tankless models often last 15-20 years due to fewer components susceptible to corrosion. Regular maintenance significantly extends lifespan – flushing tanks annually, replacing anode rods when needed, and promptly addressing any issues can add years to your water heater’s service life.

What’s better: propane or electric RV water heaters?

Each has advantages. Propane heaters heat water faster and work without shore power, making them ideal for boondocking. Electric models are more efficient when connected to shore power and don’t require propane refills. Dual-fuel models offer the best flexibility, allowing you to use propane while off-grid and electricity at campgrounds with hookups, or both simultaneously for faster heating.

Why is my RV water heater not producing hot water?

Several factors could cause this: empty propane tank, tripped circuit breaker for electric models, sediment buildup in the tank, faulty thermostat or heating element, or issues with the gas valve or ignition system. Check power sources first, then inspect for error codes on digital models. If basic troubleshooting doesn’t work, consult your owner’s manual or contact a professional for diagnosis.

Do tankless RV water heaters save propane?

Yes, tankless water heaters typically use 20-30% less propane than tank models because they only heat water when needed instead of maintaining a tank of hot water. This efficiency is particularly beneficial during extended trips or full-time RVing. Models like the Girard 2GWHAM and Fogatti InstaShower are specifically designed to maximize propane efficiency while providing consistent hot water.