Best Rv Tankless Water Heater – Top 5 Picks & Review

Imagine this: you’re parked at a breathtaking campsite, ready for a hot shower after a long day of exploring. But then, disaster strikes – your RV’s water heater is sputtering lukewarm water, or worse, nothing at all! The struggle to find a reliable and efficient RV tankless water heater can feel overwhelming, with so many brands and features to consider. It’s a common frustration for many RV owners who want to enjoy their adventures without worrying about their hot water supply.

Choosing the right tankless water heater means more than just picking one off the shelf. You want to ensure it fits your RV’s power needs, provides enough hot water for your family, and is easy to install and maintain. Getting it wrong can lead to chilly showers, wasted energy, and unnecessary headaches. But don’t worry, we’re here to help you navigate this confusing landscape!

In this post, we’ll break down everything you need to know about RV tankless water heaters. We’ll explore what makes them great, what to look for when buying, and how to avoid common pitfalls. By the end, you’ll have the knowledge to confidently choose a water heater that delivers endless hot water for all your RV adventures. Let’s dive in and make sure your next shower is a perfectly warm one!

Our Top 5 Rv Tankless Water Heater Recommendations at a Glance

Top 5 Rv Tankless Water Heater Detailed Reviews

1. GIRARD Tankless RV Water Heater

GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation - 2022107534

Rating: 9.0/10

Upgrade your RV’s hot water with the GIRARD Tankless RV Water Heater. This powerful heater gives you endless hot water without a bulky tank. It’s designed for RVs and uses smart technology to keep your water at the perfect temperature.

What We Like:

  • POWERFUL PERFORMANCE: It heats water fast with 42,000 BTUs. The quiet motor uses very little power (12V, under 3 amps). You’ll barely hear it running.
  • CONSISTENT TEMP: A smart chip watches the water. It makes sure the temperature stays the same, so you won’t get cold surprises or get burned.
  • HIGHLY EFFICIENT: This heater saves a lot of propane. It uses about half as much as old tank heaters for the same amount of hot water.
  • INTELLIGENT CONTROL: The digital panel lets you pick your exact temperature from 95°F to 124°F. You can see the water temperature. It also shows codes if something is wrong, making it easy to fix.
  • FREEZE PROTECTION: It has a special feature to prevent freezing.

What Could Be Improved:

  • PROFESSIONAL INSTALLATION RECOMMENDED: While it says “Easy Installation,” the manufacturer strongly suggests getting a professional to install it. This might add to the total cost.

This GIRARD Tankless RV Water Heater offers a significant upgrade in comfort and efficiency for your RV adventures. You’ll enjoy reliable hot water and save on fuel costs.

2. FOGATTI RV Tankless Water Heater

FOGATTI RV Tankless Water Heater, InstaShower 7, 3 Optional Door Sizes 15"x15", 15"x18" and 18"x18" for Refitment, DC 12V, Optimized Summer Comfort Performance, Ideal for RVers

Rating: 8.9/10

Tired of cold showers or waiting for your RV’s water heater to catch up? The FOGATTI InstaShower 7 tankless water heater is here to change your RVing experience. It delivers instant hot water for your whole family, making RV life much more comfortable. Plus, it fits many RVs, so upgrading is easy.

What We Like:

  • Provides continuous hot water, perfect for families.
  • Works well even at high altitudes (up to 9,800 feet).
  • Features anti-scald protection for safe showering.
  • Comes with a pre-installed 150 PSI valve, saving you an extra purchase.
  • Includes a smart remote to easily adjust water temperature from 95°F to 123°F.
  • CSA certified with safety features like forced exhaust and auto shut-off.
  • Antifreeze protection keeps it working in cold weather.
  • Offers three door sizes (15″x15″, 15″x18″, 18″x18″) and two colors (black, white) for easy refitting.

What Could Be Improved:

  • Installation door sizes are sold separately, which adds to the overall cost.
  • While it offers optimized summer comfort, its performance in extreme cold might need further testing for some users.

The FOGATTI InstaShower 7 is a fantastic upgrade for any RVer seeking reliable and instant hot water. It’s designed with user comfort and safety in mind, making your adventures more enjoyable.

3. Ranein 65

Ranein 65,000 BTU RV Tankless Water Heater, High Altitude Available, 12V, CSA Certificated, with Thermostatic Chamber and Multi-function Controller, On Demand Instant Hot Water Heater

Rating: 8.8/10

Say goodbye to cold showers and hello to endless hot water with the Ranein 65,000 BTU RV Tankless Water Heater. This powerful heater brings the comfort of home to your RV, no matter where your adventures take you. It heats water instantly, so you never have to wait. Plus, it’s designed to save you money on gas by only using energy when you need hot water.

What We Like:

  • Get hot water right away, no waiting needed.
  • It saves gas because it only heats water when you use it.
  • Super strong heating power is great even in very cold weather.
  • It fits most RVs easily, replacing older water heaters.
  • Keeps the water temperature just right, so no wasted gas.
  • Works great at high or low altitudes with an easy switch.
  • It’s safe and has protection against freezing.
  • The remote control shows you how much gas and water you’re using.

What Could Be Improved:

  • The door sizes are sold separately.
  • While it’s safe, understanding all the advanced features might take a little time.

This Ranein water heater offers a significant upgrade for any RV owner seeking reliable and efficient hot water. It’s a smart investment for comfortable and convenient travel.

4. VEVOR RV Tankless Water Heater

VEVOR RV Tankless Water Heater, Instant Shower with 15 x 15 inches Black Door and Remote Controller, 42000BTU Optimized Comfort Performance Hot Water, Ideal for RVers

Rating: 9.1/10

Say goodbye to lukewarm showers and hello to endless hot water with the VEVOR RV Tankless Water Heater! This powerful unit is designed for RV life, giving you the comfort of a hot shower whenever you need it, whether you’re washing dishes or rinsing off after a long day of exploring. Its sleek black door and handy remote control make it a stylish and easy-to-use addition to any RV.

What We Like:

  • It heats water super fast with its 42,000 BTU power.
  • You can use it all year round because it adjusts to the weather.
  • The LED screen and touch controls make it simple to use.
  • It has an extra outdoor water outlet for washing things outside.
  • It fits most RVs with easy hookups.
  • It has safety features to keep you safe.

What Could Be Improved:

  • The exhaust pipe size might require an adapter for some RVs.
  • While it’s great for families, very large families might want to check flow rates for simultaneous use.

This VEVOR RV Tankless Water Heater offers a fantastic upgrade for any RVer seeking reliable hot water. It’s a smart choice for comfortable and convenient living on the road.

5. VEVOR RV Tankless Water Heater

VEVOR RV Tankless Water Heater, Instant Shower with 15 x 15 inches White Door and Remote Controller, 42000BTU Optimized Comfort Performance Hot Water, Ideal for RVers

Rating: 9.1/10

Tired of lukewarm showers on your RV adventures? The VEVOR RV Tankless Water Heater promises endless hot water for your family’s everyday needs, from morning showers to washing dishes. Its powerful 42,000 BTU output means you won’t have to wait long for that comforting warmth, even when everyone needs a hot rinse.

What We Like:

  • Rapid Instant Heating: Get hot water fast with 42,000 BTU power, perfect for showers and washing.
  • CSA Certified and Safe: It has multiple safety features, giving you peace of mind.
  • All-Season Comfort: Segmented combustion technology adjusts water temperature for year-round use, saving energy.
  • Easy to Use Controls: An LED smart display and touch controls make adjusting temperature simple.
  • Outdoor Water Outlet: An extra outlet on the front is great for washing pets or your vehicle.
  • Fits Most RVs: The 15×15 inch door and standard connectors make installation easy.

What Could Be Improved:

  • Remote Controller Not Mentioned in Features: While the title mentions a remote controller, its specific functions and inclusion aren’t detailed in the feature list, leaving some questions about its utility.
  • Exhaust Pipe Size Specificity: The exhaust pipe size is given as a diameter, which is helpful, but the type of material or any specific installation requirements for it are not detailed.

This VEVOR tankless water heater offers a convenient and efficient way to ensure you always have hot water on the go. It’s a solid option for RVers seeking reliable comfort.

Your Guide to RV Tankless Water Heaters: Hot Water Anytime, Anywhere!

Forget waiting for your RV water heater to warm up! Tankless water heaters are changing the game, giving you endless hot water for showers, dishes, and more. Let’s find the perfect one for your adventures.

What to Look for in an RV Tankless Water Heater

1. Heating Capacity (BTUs)

This tells you how fast the heater can warm water. More BTUs mean hotter water, faster. Think about how many people will use hot water at once. If you have a big family or love long showers, you’ll need a higher BTU. Most RV tankless heaters range from 40,000 to 90,000 BTUs.

2. Fuel Type

Most RV tankless heaters run on propane. This is great because propane is common in RVs. Some models might also run on electricity, but these are usually less powerful and need a strong shore power connection.

3. Water Flow Rate (GPM)

This is how much hot water the heater can deliver per minute. A higher GPM is better if you have multiple people showering or need to fill a sink quickly. Look for a GPM between 1.5 and 5.0.

4. Ignition Type

Most tankless heaters use electronic ignition, which is reliable and easy. Some older models might have pilot lights, but these are less common now.

5. Vents and Installation

Tankless heaters need proper ventilation to get rid of exhaust fumes. Make sure the model you choose has a vent kit that works with your RV. Installation can be tricky, so consider if you’re comfortable doing it yourself or will need professional help.

Important Materials and Quality

1. Stainless Steel Burners

Stainless steel is strong and doesn’t rust easily. This means your heater’s burners will last longer and work better.

2. Copper Heat Exchanger

Copper is excellent at transferring heat. A copper heat exchanger helps the water heat up quickly and efficiently. This means less wasted energy and more hot water for you.

3. Durable Casing

The outside of your heater should be made of tough materials. This protects the inner parts from bumps and weather, keeping your heater working well on the road.

Factors That Affect Quality

What Makes a Heater Better?
  • Higher BTU and GPM: More power means quicker, more plentiful hot water.
  • Good Brand Reputation: Well-known brands often use better parts and offer better support.
  • Easy-to-Use Controls: Simple knobs or digital displays make adjusting the temperature a breeze.
  • Frost Protection: Some heaters have built-in features to prevent freezing in cold weather, which is a big plus for year-round campers.
What Can Reduce Quality?
  • Low-Quality Parts: Cheaper materials can break down faster.
  • Poor Ventilation: If the heater doesn’t get enough air, it won’t work efficiently and can be unsafe.
  • Incorrect Installation: A bad install can lead to leaks or poor performance.

User Experience and Use Cases

People love tankless water heaters because they get hot water on demand. No more running out mid-shower! They are perfect for:

  • Long Showers: Enjoy longer, hotter showers without worrying about the tank running empty.
  • Multiple Users: If you have several people in your RV, everyone can get hot water when they need it.
  • Washing Dishes: Easily get enough hot water to clean up after meals.
  • Cold Weather Camping: Stay comfortable even when temperatures drop.

While they are a great upgrade, remember they use more propane than tank heaters. You’ll need to keep an eye on your propane levels.

Frequently Asked Questions (FAQ)

Q: Do RV tankless water heaters use a lot of propane?

A: Yes, they use more propane than traditional tank heaters because they heat water as you need it. You’ll need to manage your propane supply carefully.

Q: Can I install a tankless water heater myself?

A: It depends on your comfort level with plumbing and gas lines. Many people hire a professional RV technician for installation to ensure it’s done safely and correctly.

Q: How long does hot water last with an RV tankless water heater?

A: It lasts as long as you have propane and water! You get continuous hot water, unlike tank heaters that have a limited supply.

Q: What is the best BTU for my RV?

A: For most RVs with 1-3 people, a 50,000-60,000 BTU heater is usually enough. If you have more people or use a lot of hot water, consider 70,000 BTU or higher.

Q: Do tankless water heaters need special venting?

A: Yes, they require proper venting to safely release exhaust gases. Most come with vent kits, but you need to ensure it’s compatible with your RV’s exterior.

Q: Can I use an electric tankless water heater in my RV?

A: Some electric models exist, but they typically require a very strong electrical hookup (like 50-amp service) and may not provide as much hot water as propane models.

Q: How do I prevent my tankless water heater from freezing?

A: Many models have built-in freeze protection. If yours doesn’t, you’ll need to drain it completely before storing your RV in freezing temperatures.

Q: What maintenance do RV tankless water heaters need?

A: You should periodically flush the heater to remove mineral buildup, especially if you have hard water. Checking vents and connections is also important.

Q: Will a tankless water heater work with my RV’s water pump?

A: Yes, they work with RV water pumps. However, the pump needs to provide enough water pressure for the heater to activate.

Q: Are tankless water heaters worth the cost?

A: For many RVers, the convenience of endless hot water makes them worth the investment. They improve the comfort and enjoyment of RV travel.

In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.

If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.