Best Electric Tankless Water Heaters for RVs: Instant Hot Water on the Road

Remember that icy blast of water hitting you mid-shower in your RV? Yeah, we’ve all been there. It’s a less-than-ideal way to start your day when you’re trying to enjoy the freedom of the open road. Whether you’re boondocking in the desert or nestled in a cozy campground, a consistent and reliable hot water supply is a must-have for a comfortable RV experience. That’s where the right water heater comes in, and not just any water heater, but one specifically designed for the unique demands of RV life.

Choosing from a seemingly endless array of options can feel overwhelming, but don’t worry, we’ve done the research for you! This guide will walk you through the very best electric tankless water heaters for RVs. We’ve compiled in-depth reviews and buying tips to help you choose the perfect model to suit your needs and budget. Say goodbye to lukewarm showers and hello to endless hot water on your next adventure!

We will review the best electric tankless water heaters for rvs later in this article. But before that, take a look at some relevant products on Amazon:

Last update on 2025-04-02 / Affiliate links / #CommissionsEarned / Images from Amazon Product Advertising API

Table of Contents

Say Goodbye to Cold Showers: Finding the Perfect On-Demand Hot Water for Your RV

Let’s face it: RV living is all about freedom, adventure, and making the most of the great outdoors. But sometimes, those little creature comforts can make a big difference. And nothing ruins a perfectly good camping trip faster than a lukewarm or, even worse, ice-cold shower! If you’re tired of battling the limited capacity of your RV’s traditional water tank, or waiting forever for hot water to arrive, you’re not alone. A lot of RVers are looking at alternatives, and you might find that on-demand hot water is the solution.

That’s where the magic of tankless water heaters comes in. Unlike traditional tank heaters that store a limited amount of hot water, tankless models heat water on demand, as you need it. This means endless hot showers (within reason, of course – we still need to conserve water!), reduced energy consumption, and a whole lot less wasted space. Plus, no more worrying about the tank running dry just as you’re getting the shampoo in your hair. Studies show that switching to a tankless water heater can save up to 34% on energy costs, making them a financially savvy choice in the long run.

But with so many options on the market, finding the best electric tankless water heaters for RVs can feel a little overwhelming. You’ll want to consider things like size, power requirements, flow rate, and of course, reliability. RVs have very specific power needs, so what works in a home may not work in your camper. It’s important to research options that can function properly on 30-amp or 50-amp RV electrical systems.

Don’t worry, though! We’re here to help you navigate the world of on-demand hot water and find the perfect solution for your RV lifestyle. We’ll explore some of the top contenders, compare their features, and guide you through the process of choosing the right electric tankless water heater so you can say goodbye to cold showers and hello to endless hot water on your next adventure. Get ready to enjoy the comforts of home, no matter where the road takes you.

Best Electric Tankless Water Heaters For Rvs – Reviewed

TRUMA AquaGo Electric Water Heater

Imagine stepping into your RV shower and experiencing endless hot water, no matter how long you linger. The Truma AquaGo Electric is designed to do just that, offering a continuous flow of hot water on demand. This unit is known for its compact design, which is a lifesaver in the often-cramped quarters of an RV. It heats water quickly and efficiently, eliminating the annoying wait for the tank to fill up. Plus, its digital controls make it easy to set your desired temperature.

While the initial cost might be higher than traditional tank heaters, the AquaGo’s energy efficiency and consistent performance are worth the investment for serious RVers. However, be aware that installation can be a bit tricky, so professional installation might be a good idea. Once installed, though, you’ll be enjoying on-demand hot water for years to come.

Girard 2GWH-AM On-Demand Water Heater

The Girard 2GWH-AM is a popular choice for RV owners looking to upgrade their hot water experience. Its claim to fame is its consistent water temperature, regardless of how long you run the tap. It’s also relatively lightweight and compact, making it easier to install in tight spaces. Digital temperature control allows you to dial in your perfect shower temperature with ease.

One thing to keep in mind is that the Girard 2GWH-AM does require a significant amount of power, so make sure your RV’s electrical system is up to the task. Some users have reported experiencing voltage drops when running other appliances simultaneously. However, if you have adequate electrical capacity, this water heater delivers a reliable and enjoyable on-demand hot water experience.

PrecisionTemp RV-550 NSP Tankless Water Heater

For those who prioritize power and performance, the PrecisionTemp RV-550 NSP is a heavy-duty contender. This unit is designed to provide hot water even in colder climates, thanks to its robust heating elements. Its self-modulating system adjusts the heating power based on the water flow rate, optimizing energy consumption. This also helps to maintain a consistent water temperature.

The RV-550 NSP is known for its durability and longevity. It is built to withstand the rigors of RV travel. Be prepared for a potentially more involved installation process, and make sure your RV’s electrical system can handle the higher power demands. Once set up, it is a great option for full-time RVers and those who frequently camp in cold weather.

Forcali F-12 On-Demand RV Water Heater

The Forcali F-12 is an appealing option if you are looking for a cost-effective tankless water heater for your RV. This unit delivers on-demand hot water without breaking the bank. It is relatively easy to install and features a compact design that fits well in most RVs. The digital display makes it easy to monitor and adjust the water temperature.

While the Forcali F-12 provides consistent hot water, it might struggle to maintain the desired temperature if the incoming water is extremely cold or if multiple hot water fixtures are used simultaneously. However, for moderate usage and milder climates, it offers an excellent value for the price and a significant upgrade over traditional tank heaters.

Marey GA10LP Propane Tankless Water Heater

While technically propane powered, the Marey GA10LP offers the on-demand convenience of a tankless system and is a popular choice for RV owners who prefer gas. This model heats water quickly and efficiently, providing a continuous flow of hot water for showers, dishes, and other needs. It is also relatively compact and easy to install.

This unit is ventless and must be installed properly with adequate ventilation. One great advantage of using propane is that you are not limited by your RV’s electrical system. However, make sure you have ample propane supply for your trips. If you are not comfortable working with gas lines, consider professional installation. Once set up, the Marey GA10LP provides reliable on-demand hot water without taxing your RV’s electrical system.

Why RV Owners Should Upgrade to Electric Tankless Water Heaters

Imagine this: you’ve just finished a long day of hiking, the sun is setting, and all you want is a hot shower to wash away the dust and fatigue. With a traditional RV water heater, you might be stuck waiting 30 minutes or more for the water to heat up, and even then, you might run out of hot water before you’re finished. But with the best electric tankless water heaters for RVs, that scenario becomes a thing of the past. You’ll have instant, on-demand hot water whenever you need it, allowing you to relax and enjoy your RV experience without the inconvenience of waiting or rationing.

Think about those chilly mornings when you want to make a cup of coffee or wash dishes. With a standard tank heater, you’re heating up a fixed amount of water even if you only need a little. This wastes energy and valuable propane. Electric tankless water heaters only heat the water you use, making them significantly more energy-efficient and saving you money on fuel costs in the long run. Plus, you gain valuable storage space by eliminating the bulky tank, allowing you to bring along more of the essentials or even a few luxury items.

Beyond the convenience and efficiency, electric tankless water heaters offer superior temperature control. You can set your desired water temperature precisely, ensuring a comfortable and consistent showering experience every time. No more fiddling with mixing hot and cold water to find the sweet spot! This is especially beneficial when traveling with children or pets, providing added safety and peace of mind.

Investing in one of the best electric tankless water heaters for RVs is an investment in your comfort, convenience, and overall RV experience. It’s a smart upgrade that eliminates the frustrations of traditional tank heaters, allowing you to fully enjoy the freedom and adventure that RVing offers. Say goodbye to cold showers and hello to endless hot water – your future self will thank you!

Understanding Power Requirements and RV Electrical Systems

One of the biggest initial hurdles when considering an electric tankless water heater for your RV is understanding the power requirements and how they mesh with your RV’s electrical system. RVs are typically designed to operate on a combination of 120V AC power (like what you get from a standard outlet at home) and 12V DC power (primarily for lights, pumps, and some appliances). Electric tankless heaters, especially those capable of providing a comfortable flow rate, often demand a significant amount of amperage at 120V. This means you need to ensure your RV’s electrical system can handle the load without tripping breakers or causing other issues.

Imagine you’re boondocking and relying solely on your generator. A smaller generator might struggle to power a high-demand tankless heater and other appliances simultaneously. It’s like trying to run a marathon on an empty stomach – you’ll quickly run out of energy. In this case, you would need to consider upgrading to a larger generator or being very strategic about when you use the heater.

For RV park hookups, pay close attention to the amperage rating of the campsite’s electrical connection. A 30-amp service might not be sufficient to run a powerful tankless heater along with your air conditioner and other electrical devices. Exceeding the campsite’s amperage can trip the breaker and disrupt power to your entire RV, potentially causing inconvenience for you and other campers.

Before committing to a specific model, carefully evaluate your RV’s electrical panel, shore power connections, and generator capacity. Consult with a qualified RV electrician if you’re unsure about your RV’s capabilities. This step is essential to ensure a safe and enjoyable experience with your new tankless water heater.

Optimizing Water Conservation with Tankless Technology

RVs have limited water tank capacity, making water conservation crucial, especially when boondocking. One of the compelling advantages of electric tankless water heaters is their ability to provide hot water on demand, eliminating the need to heat and store a large tank of water. This translates to significant water savings, as you’re not wasting water waiting for the tank to heat up or dumping partially used tanks to avoid stale water.

Picture this: you’re showering in your RV after a long day of hiking. With a traditional tank water heater, you might waste a considerable amount of water waiting for the hot water to reach the showerhead. With a tankless system, hot water is available almost instantly, minimizing water waste. This can be especially beneficial when traveling with family or friends, as you can extend your water supply and reduce the frequency of refilling your tank.

Beyond showering, consider the other uses of hot water in your RV: washing dishes, handwashing, and even minor cleaning tasks. A tankless heater provides hot water efficiently for these purposes, helping you conserve water across various activities. The savings can add up quickly, particularly on longer trips or when dry camping in areas with limited water access.

By implementing water-saving habits and utilizing a tankless water heater, you can significantly extend your RV’s water capacity, making your trips more enjoyable and sustainable. Think of it as being a responsible traveler, minimizing your environmental impact while maximizing your RV experience.

Installation Considerations and Potential Challenges

Installing an electric tankless water heater in an RV presents unique challenges compared to a residential setup. The limited space within an RV requires careful planning and precise execution. Before starting the installation, thoroughly assess the available space and ensure the chosen model fits comfortably without obstructing other components or compromising safety.

Imagine trying to fit a bulky appliance into a cramped compartment. It’s like trying to squeeze an elephant into a phone booth – it simply won’t work. Accurate measurements are crucial, and you might need to relocate existing plumbing or electrical wiring to accommodate the new heater. Additionally, consider the accessibility of the heater for future maintenance or repairs.

Another potential challenge is ensuring proper ventilation. While electric tankless heaters don’t produce exhaust gases like propane models, they can generate heat. Adequate ventilation is essential to prevent overheating and potential damage to surrounding components. This might involve installing vents or modifying existing ones to promote airflow around the heater.

Consider consulting with an experienced RV technician or electrician to handle the installation, particularly if you’re not comfortable working with electrical or plumbing systems. Professional installation ensures the heater is installed correctly and safely, minimizing the risk of leaks, electrical hazards, and other potential problems down the road. This is one area where investing in professional help can save you headaches and money in the long run.

Troubleshooting Common Issues and Maintenance Tips

Even with proper installation, electric tankless water heaters can sometimes experience issues. Understanding common problems and preventative maintenance practices can help you keep your heater running smoothly and extend its lifespan. One common issue is mineral buildup, particularly if you frequently travel to areas with hard water.

Think of your water heater as a coffee machine – over time, mineral deposits can accumulate, affecting performance and potentially causing damage. Regularly flushing the heater with a descaling solution can help remove mineral buildup and maintain optimal water flow. This simple maintenance task can significantly improve the heater’s efficiency and prevent costly repairs.

Another potential issue is electrical problems, such as tripped breakers or faulty wiring. Inspect the wiring connections regularly to ensure they are secure and free from corrosion. If you experience frequent breaker trips, consult an electrician to diagnose the underlying cause and prevent potential hazards. It’s like checking the tires on your car before a long trip – preventive measures can help avoid unexpected breakdowns.

By addressing potential problems proactively and performing regular maintenance, you can keep your electric tankless water heater operating efficiently and reliably for years to come. Remember to consult the manufacturer’s instructions for specific maintenance recommendations and troubleshooting tips. A little bit of care can go a long way in ensuring a continuous supply of hot water during your RV adventures.

Introduction: Thinking of Endless Hot Showers on the Road? Let’s Find Your Perfect Fit!

Best Electric Tankless Water Heaters For RVs: A Comprehensive Buying Guide

Hey there, fellow RV enthusiast! Are you tired of those quick, lukewarm showers while you’re out exploring? Dreaming of a seemingly endless supply of hot water after a long day of hiking or driving? Then you’re definitely in the right place. Upgrading to an electric tankless water heater can be a game-changer for your RV lifestyle, providing on-demand hot water without the bulk and limitations of a traditional tank system.

But with so many options on the market, choosing the best electric tankless water heater for your RV can feel a bit overwhelming. Don’t worry, I’m here to help! Think of me as your friendly guide, walking you through the key factors to consider so you can make an informed decision and enjoy those luxurious, hot showers you deserve. Let’s dive in!

1. Power Needs: Can Your RV Handle the Heat?

First things first, let’s talk power. Electric tankless water heaters are power-hungry beasts, drawing a significant amount of electricity. Before you even start browsing models, you need to realistically assess your RV’s electrical system. What’s your RV’s amperage capacity? Do you have a generator or rely solely on shore power? What else will be running at the same time, like your air conditioner or microwave? Installing a tankless heater that overloads your system is a recipe for disaster, leading to tripped breakers, damaged appliances, or even worse.

Think of it this way: Imagine trying to run a marathon without training. You might start strong, but you’ll quickly run out of steam and potentially injure yourself. Similarly, overloading your RV’s electrical system is like pushing it beyond its limits. A good electrician can help you determine the maximum amperage you can safely draw and whether you need to upgrade your electrical service before installing a tankless water heater. This may involve upgrading your wiring, adding a dedicated circuit, or even considering a larger generator. It’s always better to be safe than sorry!

2. Flow Rate: How Much Hot Water Do You Really Need?

Flow rate, measured in gallons per minute (GPM), is how much hot water the heater can deliver at a given time. This is a crucial factor to consider because it determines whether you can simultaneously run multiple hot water fixtures, like the shower and the kitchen sink. Think about your typical usage. Are you mostly showering one person at a time, or do you have a family that likes to wash dishes while someone’s showering? A lower flow rate might be sufficient for a solo traveler, but a larger family will likely need a higher flow rate to avoid cold surprises.

Imagine trying to fill a swimming pool with a garden hose. It would take forever, right? Similarly, if your tankless heater’s flow rate is too low, you’ll be stuck with a trickle of hot water, especially if someone else turns on a faucet. The best electric tankless water heaters for RVs will offer a flow rate that meets your specific needs. To estimate your ideal flow rate, consider the GPM rating of your showerhead and faucets. Add up the GPM of all the fixtures you might use simultaneously, and then add a little extra for good measure. This will give you a good starting point for choosing a heater with the right flow rate for your RV lifestyle.

3. Size and Installation: Will it Fit in Your Rig?

RV space is precious, and every square inch counts. Unlike traditional tank heaters, electric tankless heaters are much more compact, but they still require a certain amount of space for installation and ventilation. Before you commit to a specific model, carefully measure the available space in your RV and compare it to the heater’s dimensions. Consider the plumbing connections and electrical wiring too. Will they be easily accessible? Will you need to modify your existing plumbing or electrical system?

Picture trying to squeeze a large suitcase into an already full overhead compartment on an airplane. It’s frustrating and often impossible, right? The same principle applies to installing a tankless water heater in your RV. A professional installer can help you assess the feasibility of installing a particular model and make any necessary modifications. They can also ensure that the heater is properly vented and that all plumbing and electrical connections are safe and up to code. Don’t underestimate the importance of proper installation!

4. Energy Efficiency: Saving Money and Resources

While electric tankless water heaters are generally more energy-efficient than traditional tank heaters, not all models are created equal. Look for models with high energy factor (EF) ratings. The EF rating indicates how efficiently the heater converts energy into hot water. A higher EF rating means lower energy consumption and lower utility bills, especially if you are relying on shore power with metered electricity. The best electric tankless water heaters for RVs will be energy-star certified, meaning they meet strict energy efficiency standards.

Think of it like choosing a fuel-efficient car. A car with good gas mileage will save you money at the pump and reduce your carbon footprint. Similarly, an energy-efficient tankless water heater will save you money on electricity and reduce your impact on the environment. Consider the long-term cost of ownership, not just the initial purchase price. An energy-efficient model might cost more upfront, but it will pay for itself over time through lower energy bills. Also, be aware that some models may have specific voltage requirements (e.g. 240V) that will impact your RV’s set-up.

5. Temperature Control: Getting It Just Right

The ability to precisely control the water temperature is a major advantage of electric tankless water heaters. Look for models with digital temperature displays and adjustable settings. This allows you to dial in the perfect temperature for showers, dishwashing, and other tasks, avoiding scalding or lukewarm water. Some models even have memory settings that allow you to store your preferred temperature settings for different users.

Imagine trying to bake a cake without a temperature dial on your oven. You would have no idea if the oven is too hot or too cold, and the cake might turn out burnt or undercooked. Similarly, a tankless water heater without precise temperature control can be frustrating and even dangerous. Especially for families with young children, the ability to set a maximum temperature can prevent accidental scalding. Digital temperature displays and adjustable settings are a must-have for any tankless water heater.

6. Durability and Reliability: Built to Last on the Road

RV life can be tough on equipment, with constant vibrations, temperature changes, and exposure to the elements. You need a tankless water heater that’s built to withstand the rigors of the road. Look for models with durable construction, high-quality components, and a solid warranty. Read online reviews and see what other RVers have to say about the reliability of different models.

Picture your trusty hiking boots. You want them to be durable and reliable, able to withstand miles of rugged terrain. Similarly, you want your tankless water heater to be built to last, able to handle the challenges of RV travel. A longer warranty is a good indicator of the manufacturer’s confidence in their product. Also, consider the availability of replacement parts. If something does go wrong, you want to be able to easily find replacement parts and get your heater back up and running quickly.

7. Brand Reputation and Customer Support: Who’s Got Your Back?

When investing in a major appliance like a tankless water heater, it’s important to choose a reputable brand with a track record of quality and customer support. Research different brands, read online reviews, and see what other RVers recommend. A good brand will stand behind its products and provide excellent customer support in case you have any questions or issues. The best electric tankless water heaters for RVs are often from brands that specialize in the mobile living space or those with a proven history of reliable appliance manufacturing.

Think of it like choosing a doctor. You want someone who is experienced, knowledgeable, and trustworthy. Similarly, you want to choose a tankless water heater brand that has a good reputation and provides excellent customer support. A responsive customer support team can be invaluable if you encounter any problems during installation or operation. Look for brands that offer toll-free phone support, online chat, and comprehensive online resources. A little research upfront can save you a lot of headaches down the road.

Frequently Asked Questions

What size electric tankless water heater do I need for my RV?

Choosing the right size is all about how much hot water you typically use at once. Think about if you’re likely to run the shower and the kitchen sink simultaneously. A smaller unit, around 2-4 gallons per minute (GPM), might be perfect if you’re mostly showering or just need hot water for washing dishes occasionally. However, if you have a larger RV or like to have more hot water available, a 5-7 GPM model would be a better fit.

Consider the incoming water temperature in your typical camping locations, too. Colder incoming water requires a more powerful heater to raise the temperature to your desired level. Many RVers find that knowing their average GPM usage and typical water temperature helps them pinpoint the perfect size without overspending on a unit that’s too powerful.

Are electric tankless water heaters difficult to install in an RV?

Installation can range from straightforward to a bit more involved, depending on your RV’s existing setup and your DIY skills. Some units are designed to replace existing tank heaters with minimal modifications. If you’re comfortable with basic plumbing and electrical work, you might be able to handle the installation yourself.

However, since you’re dealing with both water and electricity, safety is key. If you’re at all unsure about any aspect of the installation process, it’s always a good idea to consult with a qualified RV technician or electrician. They can ensure everything is hooked up correctly and safely, giving you peace of mind on the road.

Do electric tankless water heaters require a lot of power?

Yes, they generally require a significant amount of power because they heat water on demand. This means they need enough amperage to quickly raise the water temperature. Before purchasing, make sure your RV’s electrical system can handle the unit’s power requirements. Check your RV’s breaker panel and generator capacity to ensure you won’t overload the system.

It’s also wise to consider how often you’ll be using other appliances while running the water heater. If you frequently use a microwave, air conditioner, or other high-draw appliances simultaneously, you might want to choose a lower-powered water heater or upgrade your RV’s electrical infrastructure. Otherwise, tripping breakers might become a regular occurrence!

How long do electric tankless water heaters last?

One of the great things about tankless water heaters is their longevity. Unlike traditional tank heaters that can corrode and rust over time, tankless models typically last much longer. With proper maintenance, you can expect a good electric tankless water heater to last for 10-20 years, maybe even longer.

Regular maintenance, like flushing the unit to remove mineral buildup, can significantly extend its lifespan. Also, using a water softener can help prevent mineral deposits, especially if you frequently camp in areas with hard water. Taking these simple steps can help ensure your tankless water heater provides reliable hot water for many adventures to come.

Are electric tankless water heaters safe for RV use?

Yes, electric tankless water heaters are generally safe for RV use, but like any appliance, safety depends on proper installation and operation. It’s crucial to choose a unit that’s appropriately sized for your RV’s electrical system and to follow the manufacturer’s instructions carefully during installation.

Furthermore, it’s essential to have safety features like overheat protection and pressure relief valves. These features help prevent accidents and ensure the unit operates safely even under demanding conditions. As long as you prioritize safety and adhere to recommended practices, you can enjoy the convenience of endless hot water without worries.

What are the benefits of choosing electric over gas for a tankless RV water heater?

Electric tankless water heaters offer several advantages over gas-powered models in RVs. For starters, they eliminate the need for a propane connection, simplifying installation and reducing the risk of gas leaks. This can be especially appealing if you prefer to minimize the number of fuel sources you rely on while traveling.

Additionally, electric models tend to be more environmentally friendly since they don’t produce any combustion byproducts. They also often come with more precise temperature controls, allowing you to customize the water temperature to your exact preference. So, if you’re looking for convenience, safety, and eco-friendliness, electric might be the way to go.

Will an electric tankless water heater save me money in the long run?

Electric tankless water heaters can indeed save you money in the long run, primarily because they only heat water when you need it. Traditional tank heaters constantly use energy to keep a reservoir of water hot, even when you’re not using it. Tankless models eliminate this standby heat loss, potentially reducing your energy bills.

However, it’s important to consider your RV usage patterns. If you only use your RV occasionally, the savings might not be as significant. But for frequent travelers or full-time RVers, the reduced energy consumption can add up to substantial savings over the lifespan of the unit. Plus, the longer lifespan of tankless heaters compared to tank models further contributes to their overall cost-effectiveness.

Final Thoughts

So, there you have it! We’ve explored some incredible options when it comes to finding the best electric tankless water heaters for RVs. Remember, investing in a reliable on-demand system means saying goodbye to lukewarm showers and hello to consistent, hot water wherever your adventures take you. Now you have the knowledge and insights to confidently choose a model that perfectly fits your needs, budget, and RV lifestyle.

With a little research and planning, you’re well on your way to enjoying endless hot water and optimizing your RV’s energy efficiency. Don’t let subpar water heating hold you back! Embrace the freedom and comfort that a quality electric tankless water heater brings. Get out there, explore, and savor every moment of your journey, knowing a hot shower is always waiting for you at the end of the day. Happy travels!

Leave a Comment