110 Volt Tankless Water Heater for RV: 9 Top Picks You Can Buy in 2023

Are you looking for a 110 Volt tankless water heater for RV? Dont worry. Your search ends here. With over a four of experience in the RV spare parts field, I’ll review the top 9 tankless water heaters based on their features. So, Without any further delay, let’s get started!

Quick Answer

When buying the best 110-volt tankless water heater for RV, owners feel overwhelmed with many options. As a matter of fact, I have helped over 40 consumers last year. From my experience, I have concluded that an RV water heater should have the following things:

1. Has the ability to provide continuous hot water;
2. Can control the temperature automatically;
3. Should be economical and cost-effective;
4. Can bear high temperature and pressure.

However, the problem arises where to get a device that can offer all these benefits. Continue reading below, as I will provide you with a buying guide and review of the 9 best water heaters. Let’s deep dive into the guide.

110 Volt Tankless Water Heaters for RV: Comparison Chart

The following table quickly compares the top 9 water heaters for RV:

Now that we have covered the overview of the best products, let’s study them in detail:

1. Best 110 Volt Tankless Water Heater for Shower: Toossna 5400W Electric Shower Head

The pros and cons of the product are mentioned here:

This Toossna is currently installed in the shower cabin of my Cherokee Wolf Pup. I like the look of the showerhead – it has an attractive design. And it is pretty easy to operate with simple controls. 

The reason that I picked it as my top product is because of its 5400w solid power output that provides rapid heating, delivering hot water in just half a second. Lastly, the over-protection bonus is an excellent addition to avoid any electrocution. 

Features 

The following are the features of theToossna 5400W:

• It has built-in protection like hydropower complete isolation, a heat exchanger, and over-voltage protection to enhance safety.
• This shower features a robust PP material which guarantees a longer lifespan.
• It has a plastic pipe for easy connectivity. 

Specs 

The specifications of the water heater are mentioned below:

2. Best High-power Water Heater: HAIYEATBNB Tankless Water Heater

The following are the pros and cons of tankless hot water heaters:

Looking for a compact RV water heater? This little tankless water heater from HAIYEATBNB could be just what you need. It tucks neatly under your sink, delivering hot water on demand. I like that it’s energy efficient and simplifies installation. Moreover, it comes with a remote control for additional convenience.

Features 

The features of the HAIYEATBNB are given below:

• The heater provides water pressure of around 0.04-1.2Mpa, which you can adjust. 
• Temperature and settings can be controlled with the help of a remote.
• It is IPX4 water resistant and can be placed directly in humidity spaces. 

Specs

The specs of the product are mentioned here:

3. Best Compact Water Heater: SHIOUCY Electric Water Heater

The pros and cons of the product are discussed below:

This little tankless heater from SHIOUCY could fit the bill for people who want an easy way to get unlimited hot water in their RV. I like the peace of mind of its many built-in safety features, such as leakage protection or grounding protection. On top of that, it only takes 3 seconds to heat the water, thanks to its 1500-watt heater. Another perk of this device is that it is made of stainless steel for long-term use. 

Features 

The features of the SHIOUCY are mentioned here:

• It is certified by the FCC, ensuring it complies with safety guidelines. 
• It allows you to adjust the temperature range between 30℃-65℃ as per your requirements. 
• This product can produce heat in the range of 1.1kW-2kW, making it economical.

Specs 

These are the specifications of the water heater:

4. Best Water Heater with Automatic On/Off Feature: H-YEEU Shower Head

The following are good and bad about this water heater:

The electric shower head heater from H-YEEU is a great option to get hot water quickly. What makes it unique is that it directly fits in your shower, requiring no additional equipment and space. Moreover, it automatically turns on when water starts flowing and off when it stops, making it easy to control.

Features 

These are the features of the H-YEEU Shower Head:

• It is made of high-temperature resistance plastic, making it a durable product. 
• It can warm water between 30 degrees and 60 degrees, depending on the settings. 
• The heater withdraws only 25 amperes of current and puts no additional burden on the EV.

Specs 

The specs of the water heater are listed below:

5. Best Water Heater with a Bidet: LORENZETTI CORAL

The pros and cons of the product are listed below:

The LORENZETTI CORAL caught my eye as a compact electric tankless water heater that could be useful for an RV. Its smaller size is nice since space is always limited. I like that it can handle various applications beyond RV use, from horse trailers to washing stalls to winter car de-icing. Having multiple power settings up to 4500W provides flexibility.

Features 

The features of the LORENZETTI CORAL are mentioned below:

• It has 3 power settings, ranging from 1870 watts to 4500 watts.
• The product has a 17-inch coated wire harness for safety.
• It can operate at a high pressure of 120 pounds per square inch.

Specs 

These are the specifications of the product:

110-120 Volts Mini Tank Water Heaters

Now, let’s look at a few small, self-contained RV water heaters with tanks that can conveniently fit under your sink. While not tankless, these compact 2–10-gallon models occupy minimal space. They operate at a minimum of 110-120 volts and provide reliable performance, perfect for small trailers and campers.

1. Best Water Heater with a Thermostat: Mini Tank Water Heater Under Sink

The pros and cons of the product are given below:

The FOGATTI Mini Tank Water Heater is a compact unit for RVs with limited space. This little guy heats water fast, delivering 1440W of power in a standard 120V plug-in design. The device may be tiny, but it doesn’t skimp on safety. It’s CSA-approved and has a thermostat to control temperature, plus an automatic shut-off if it ever gets too hot. It only holds 2.5 gallons of water. That’s fine for a sink or two, but bigger families may need a larger tank.

Features 

The features of the Mini tank water heater are mentioned below:

• It can bear high temperatures up to 167°F.
• The shower comes with a temperature and pressure relief valve (TP valve), which could be economical.
• It can be used with 2 tanks at the same time and can heat the water for under 8 minutes. 

Specs 

The specs of the water heater are given below:

2. Best Durable Water Heater: Camplux Pro ME25B

The pros and cons of the product are given below:

Hot water on demand for your RV – that’s what the Camplux Pro ME25B heater delivers. I like its performance despite its small size. It heats water instantly using 1.44kW of power, so you get hot water exactly when needed. Moreover, it is durable enough for life on the road thanks to the corrosion-resistant stainless steel interior.

Features 

The features of the Pro ME25B are listed below:

• It supports 3 temperature settings from 50°F to 149°F. 
• There is an anti-freeze mode to prevent the heater from freezing in cold weather.
• It can bear a maximum water pressure of 150PSI and a TP valve to ensure safety. 

Specs 

These are the specs of the product:

3. Best Water Heater with Glass-lined Tank: Camplux ME40 Mini

The good and bad of the water heater are mentioned here:

The Camplux ME40 mini tank water heater is a handy little unit perfect for supplying hot water right where you need it without taking up much space. This compact 4-gallon model is energy efficient and installs in a snap. Moreover, it is made to last, with a durable glass-lined tank that increases the lifespan.

Features

These are the features of this ME40 Mini:

• It comes with an ample 4-gallon of water storage.
• Approved by UL safety for protection from overheating. 
• It has a 43.3-inch cord that supports 120 volts and is easy to install.

Specs 

The following are the specs of the unit:

4. Best Wall-mounted Water Heater: Stiebel Eltron SHC 4

Let’s discuss the pros and cons of the water heater:

With its lightweight European design, the 234046 SHC 4 looks great while fitting into tight spots, like under counters or RV kitchens. Since it plugs into a standard 120 or 100V outlet, installation is a breeze with no special wiring. The included mounting bracket makes for an easy installation. Lastly, Stiebel Eltron covers the tank against leaks for 6 years and all other parts for 2 years, giving peace of mind. 

Features 

The following are the features of the Eltron SHC 4:

• It is a point-of-use water heater and can be installed at any suitable place in the RV.
• The heater can be plugged in both 110 and 120 plugs, causing no issue in connectivity. 
• It has a special de-frosting setting that protects it from frosting in hot weather. 

Specs 

The following are the main specifications of the water heater:

The Pros and Cons of 110-Volt On-Demand RV Water Heaters

Looking to upgrade your RV’s hot water system? A 110-volt tankless water heater may be an option worth considering. I remember when I bought the Toossna shower head heater; it provided a great purchase with its compact size and instant heading. Let’s look at the key advantages and disadvantages of going tankless in your RV or camper.

The Perks of 110 RV Water Heaters

The main benefits of 110V electric tankless water heaters are:

• They have a compact design that fits well in small RVs.
• Tankless RV water heaters deliver a constant supply of hot water on demand. 
• Tankless water heaters only heat water as needed, being more efficient. 
• 110 V water heaters are easy to install with simple DIY guides. 

The Disadvantage of 110 Water Heaters

Potential downsides include:

• They have a limited flow rate as most units can warm water at 2–5 gallons per minute.
• They require an adequate power supply to provide continuous hot water. 

5 Factors to Consider When Buying The Best Electric Tankless Water Heaters

When buying electric tankless water heaters, you must consider various options. This can create a confusing situation.

To avoid this hoax, I have prepared a checklist that helps me make a refined buying decision. For your guidance, I’m sharing this 5-point checklist with you. Let’s have a look:

1. Safety Features: Look for built-in protection from overheating, leaks, and electrical faults. Some units also have air-fuel ratio (AFR) sensors to ensure the proper mixing of fuel and air.
2. Water Flow Rate:  Make sure the heater can support the sinks and showers at a good pace. A flow rate of 2-5 gallons per minute is considered suitable for an average RV.
3. Temperature Control: Get a unit with adjustable output temperature for comfort. These will not only control the temperature in the water but also prevent the fuel from over-burning. 
4. Assess Your Water Needs: Calculate peak demand so the heater can handle usage. If you have a large RV with more water usage, get a water heater with at least 9-12 GPM capacity. 
5. Pricing/Budget: Tankless heaters cost more upfront but save over time. Set a reasonable budget as per your preferences. You can get great options under a $200 budget. 

2 Main Types of Tankless RV Water Heaters

If you’re looking into tankless water heaters for your RV, you have two main power options – electric or gas. What’s the difference, and which is better for life on the road?

1. Electric Tankless Water Heaters

Electric tankless heaters use heating elements like magnesium anodes that instantly warm the water as it flows through. They typically are 120V or 1500W systems and plug into RV electrical systems. 

Electric models are affordable, more compact, and simpler to install than gas. However, they can limit water flow and may need to work better in frigid climates.

2. Gas-powered Tankless Heaters

Gas-powered tankless heaters use propane or natural gas to heat a coil or burner that warms the passing water. Gas models provide higher water flow rates and work better in cold weather. 

But they are more expensive than their electric counterparts and require good ventilation. Mostly, gas-powered water heaters are suitable for larger RVs.

Electric vs Propane RV Water Heaters: Which is Better?

When installing a water heater in your RV, you must decide between electric or propane power. Both have their pros and cons for heating water on the road. Let me compare the key factors:

1. Upfront Costs: Electric tankless water heaters are typically less expensive than propane models. 
2. Operating Costs: Electricity is generally a more affordable fuel source compared to propane over time. 
3. Recovery Time: Propane heaters can heat water faster than electric ones in most cases.
4. Refill: With proper water tanks, you have to refill them. However, there is no such hustle with electric models.
5. Venting: Propane units require proper exhaust ventilation. On the other hand, electric heaters do not.

Summing up this quick comparison, the electric tankless water heater costs less both in the short and long term as compared to Propane heaters. On the other hand, the propane ones have a faster heating time. So, you should choose them based on your priorities.

FAQs

What size tankless water heater for my RV?

The size of a tankless water heater usually depends on your water requirements. However, for campers, a water heater with heating volume of 2-8 gallons per minute will work.

Can I Replace My RV Water Heater With a Tankless One?

Yes, you can replace a traditional RV water heater tank with a tankless model. However, this requires a water heater that can fit with your already existing piping system.

Can I install a tankless heater below an RV sink?

Yes, tankless water heaters can be installed under an RV sink in some cases. Compact electric units usually work best for under-sink use.

Conclusion

The final say is that a 110-volt tankless water heater for RV is preferred among RV owners for its convenience in providing water on demand. It is compact and handles the water needs of an average RV.

While buying a tankless water heater, check on factors like cost, water needs, water flow rate, and safety features. Moreover, you can also buy a water heater with small storage if you want to store some water for spare usage. 

Having said this, I prefer the Toossna 5400W Electric shower head heater because of its ability to provide hot water on the go. It can warm the water quickly and has safety features like over-protection.