5 Best Electric Water Heater for RV [In 2025]

When it comes to RV living, having a reliable and efficient water heater is essential for a comfortable and enjoyable experience. Electric water heaters have become a popular choice among RV owners due to their ease of use, energy efficiency, and compact design. In this comprehensive review, we’ll explore the best electric water heater options for your RV, highlighting their features, pros, and cons to help you make an informed decision.

5 Best Electric Water Heater for RV Reviews

Tankless Water Heater Electric 110V, 5500W Instant Hot Water Heater Under Sink

Overview

This tankless electric water heater from DOYXC offers instant hot water, eliminating the long wait times often associated with traditional tank-style heaters. It features advanced technology to provide hot water in just 3-5 seconds, making it a perfect choice for RV kitchens and other compact spaces.

Specs

• Voltage: 110V
• Power: 5500W
• Maximum temperature: 55°C/131°F
• Dimensions: Compact design for under-sink installation
• Safety features: IPX4 waterproof, leakage protection, dry burning protection

Pros

• Instant hot water delivery for efficient use
• Compact and portable design for easy installation
• Multiple safety features for reliable and safe operation
• Remote control and touch screen for convenient temperature adjustment
• Energy-efficient design with variable frequency control

Cons

• Requires a high-amperage circuit breaker (≥60A) for proper installation
• May not provide enough hot water for multiple simultaneous users

Electric Tank Water Heater-8 Gallon Under Sink Instant Hot Water for RV

Overview

The Feelrogast electric mini tank water heater offers a compact and efficient solution for RV owners in need of instant hot water. With its rapid heating capabilities and adjustable temperature range, this tank-style heater can meet the hot water demands of your RV kitchen, bathroom, or other compact spaces.

Specs

• Capacity: 8 gallons
• Voltage: 110/120V
• Power: 1440W
• Temperature range: 86-167°F
• Dimensions: Compact design for under-sink installation
• Safety features: Electrical insulation, leakage protection, high-temperature limiting device

Pros

• Rapid heating for quick hot water delivery
• Durable stainless steel tank with enamel coating for long-lasting performance
• Multiple safety features for peace of mind
• Versatile installation options (wall-mount, rack, or floor)
• Compact and space-saving design for RV, camper, or other small spaces

Cons

• May not provide enough hot water for high-demand situations
• Requires a 20-amp breaker for electrical safety

6 Gallon RV Tank Water Heater, KINGRVER HybridShower 6 – RV Gas and Electric Water Heater

Overview

The KINGRVER HybridShower 6 is a versatile 6-gallon RV water heater that offers both gas and electric heating options. This hybrid design provides flexibility, allowing you to choose the most suitable power source for your needs, whether it’s off-grid propane or campsite/generator electricity.

Specs

• Capacity: 6 gallons
• Heating options: Propane, electric, or dual-fuel boost
• Temperature settings: 3 adjustable options
• Dimensions: 13″ x 13″ (standard RV opening)
• Safety features: Dry-burn protection, water pressure protection, overheat protection

Pros

• Direct replacement for most Suburban and Dometic 6-gallon RV water heaters
• Flexible dual-fuel power options for off-grid or campsite use
• Adjustable temperature settings for personalized comfort
• Advanced tank and corrosion protection for long-lasting performance
• Easy DIY installation with no major modifications required

Cons

• May not provide enough hot water for multiple simultaneous users
• Requires both 12V DC and 120V AC power sources for full functionality

Briidea RV Electric Water Hybrid Heater Kits

Overview

The Briidea RV Hot Water Hybrid Heat Kit is a convenient upgrade for RVs, caravans, and motorhomes. It allows you to convert your existing LP gas water heater to a hybrid system that can also utilize 120V electricity, providing a safer and more cost-effective heating solution.

Specs

• Compatibility: Fits most Atwood and Suburban 6-gallon water tanks
• Power: 425W heating rod
• Adjustable thermostat for temperature control
• Independent switch for safe and convenient operation
• 304 stainless steel heating rod for durability and corrosion resistance

Pros

• Adds electric heating capability to existing RV water heater
• Easy installation with color-coded wiring and compatible bushings
• Adjustable thermostat for personalized temperature settings
• Durable 304 stainless steel heating rod for long-lasting performance
• Provides a cost-effective and safer alternative to propane-only heating

Cons

• May not heat water as quickly as a dedicated electric water heater
• Wiring accuracy can be a concern for some users
• Not suitable for heating larger water tanks (10 gallons or more)

Suburban Advantage RV Tank Water Heater SW6DE – 6 gallon Porcelain Lined Steel Tank

Overview

The Suburban Advantage RV Tank Water Heater is a well-built and reliable option for RV owners. Featuring a porcelain-lined steel tank and a direct spark ignition (DSI) system, this water heater offers fast recovery rates and versatile power options to meet your RV’s hot water needs.

Specs

• Capacity: 6 gallons
• Heating options: Gas (12,000 BTU/h) and optional electric element (1,440W)
• Recovery rate: 10.2 gallons per hour (gas), 6.1 gallons per hour (electric)
• Dimensions: 12.69″ x 12.69″ x 19.19″ (standard RV cutout)
• Corrosion protection: Porcelain-lined steel tank and replaceable anode rod

Pros

• Durable porcelain-lined steel tank for long-lasting performance
• Fast recovery rates for efficient hot water delivery
• Versatile power options (gas, electric, or combination)
• Replaceable anode rod for enhanced corrosion protection
• Backed by a 2-year limited warranty and a 3-year tank warranty

Cons

• Some customers report issues with leaks, particularly with the temperature/pressure relief valve

Buying Guide: Choosing the Best Electric Water Heater for Your RV

Capacity and Size

• Consider the water usage needs of your RV and choose a heater with an appropriate capacity (typically 6-8 gallons for most RVs).
• Ensure the heater’s dimensions fit the available space in your RV, especially if installing under the sink or in a compact area.

Heating Options

• Decide between a tankless (instant) or tank-style water heater based on your hot water needs and power source availability.
• For versatility, look for hybrid models that offer both gas and electric heating capabilities.

Safety Features

• Prioritize water heaters with safety features like leakage protection, dry-burn protection, and temperature/pressure limiting devices.
• Ensure the electrical system is properly installed and compatible with your RV’s power supply.

Ease of Installation

• Consider models that are designed as direct replacements for common RV water heaters, making the installation process easier.
• Look for clear instructions and color-coded wiring to simplify the setup process.

Durability and Warranty

• Opt for water heaters with sturdy, corrosion-resistant materials like stainless steel and porcelain-lined tanks.
• Check the manufacturer’s warranty to ensure long-term protection and peace of mind.

FAQ

1. Can I use an electric water heater in my RV if it doesn’t have an existing water heater?

Yes, you can install an electric water heater in your RV even if it doesn’t have a pre-existing water heater. However, you’ll need to ensure that your RV’s electrical system can handle the power requirements of the new water heater.

2. How long does it take for an electric water heater to heat up the water in my RV?

The heating time can vary depending on the specific model and its power output. Tankless electric water heaters can provide instant hot water, while tank-style electric heaters may take 10-20 minutes to fully heat up the water. Check the manufacturer’s specifications for the exact recovery rate and heating time.

3. Do I need to replace the entire water heater, or can I just upgrade the heating element?

For most RV water heaters, you can upgrade or replace the heating element without needing to replace the entire unit. However, for RVs with integrated gas and electric systems, you may need to replace the entire water heater to switch to a hybrid or electric-only model.

4. How do I maintain my RV’s electric water heater?

Regular maintenance, such as flushing the tank, checking the anode rod, and ensuring proper ventilation, can help extend the life of your electric water heater. Refer to the manufacturer’s instructions for specific maintenance requirements and schedules.

5. Can I use an electric water heater in my RV if I’m boondocking or off-grid?

Yes, you can use an electric water heater in your RV while boondocking or off-grid, as long as you have a reliable power source, such as a generator or solar panels, to power the heater. Some models offer dual-fuel options, allowing you to switch between electric and propane for greater flexibility.

Conclusion

Choosing the best electric water heater for your RV can greatly enhance your camping and travel experiences. By considering factors like capacity, heating options, safety features, and ease of installation, you can find the perfect electric water heater that meets your RV’s hot water needs. Whether you opt for a tankless, tank-style, or hybrid model, the options reviewed in this guide offer reliable and efficient solutions to keep you comfortable on the road.