Best RV Tankless Water Heater of 2021

Best RV Tankless Water Heater
Written by Anne Frank

Are you interested to buy RV tankless water heater? RVers who travel a lot and enjoy activities such as tracking and biking, really enjoy showering up after spending all day very busy. A standard water heater could put difficulty in that shower enjoyment. What’s the solution? Going tankless. You’ll be sure to have plenty of hot water for yourself and everyone else if you install a tankless RV water heater.
Providently, you can now solve this problem with the help of the best RV tankless water heater. It certifies you and your huge group enjoy nice cozy showers after enjoying your activities outdoors. Just make sure that you choose to buy a tankless water heater, which can provide a limitless supply of hot water.

Top pick for you: Super comfy winter duvets which can also be greatly useful in the winter season for a cozy and warm feel.

The electric tankless water heater should be strong enough to pump out the gallons per minute you need. To find the best units for a range of home sizes and fuel types, we have discussed with plumbers, combed through user reviews we have gathered some best RV tankless water heaters.

Top 10 Best RV Tankless Water Heater in 2021 is Shown Below in this Guide:

1. Stiebel Eltron Tempra Plus

Stiebel Eltron Tempra Plus

Stiebel Eltron Tempra Plus is the most cultivate tankless RV water heater and also the highest GPM producing electric heater. Stiebel is a German company and situated in Holzminden and manufactures products belonging to central heating like heat pumps and water heaters. Almost any German product Tempra 36 plus is built with high efficiency, quality, and an advanced model.
Tempra 36 Plus is based on Self-Modulating Power Technology and Advanced flow rate technology. Standard tankless electric water heaters use the maximum or calculated amount of electricity to warm the water regardless of the flow rate. With Self-Modulating Power technology, the amount of electricity used is accommodating according to the flow rate. Self-Modulating technology diminished power usage even more, and the heater becomes more efficient. This is the best RV tankless water heater for campers

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Key Features:

Digital temperature control
Proven loyalty. No venting required.
Easy to fitting
Advanced flow control
Components can be recycled

2. Rheem RTGH-95DVLN


Rheem RTGH-95DVLN is the advanced residential RV on demand water heater and best for houses with very excessive demand for hot water. The price of the RTGH-95DVLN is very high around 1200$, so it is not the best option for small or low demand houses. Although the price is very high it is a money saver in the long run. The condensing technology in the heat exchanger extends the efficiency of the system from 80% to almost 95% means it will save more money on the gas bill and condensing.
RTGH-95DVLN with a 9.5 GPM can be used as a whole house tankless gas water heater that can supply hot water to two showers, laundry, faucet, and a dishwasher concurrently. So, with this entity, you will never run out of hot water and best suitable for 3 or 4 bedroom houses or houses with a high requirement of warm water. This is the best RV tankless water heater for indoors

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Key Features:

Simple installation
Components made out of copper and brass
Great for a small household

3. Takagi T-KJr2-IN-NG

Takagi T-KJr2-IN-NG

Takagi is a Japanese Company especially manufacturing hot water solutions since 1952. It is the first company to sell tankless water heaters in North America. Since they have been top leaders in these RV tankless hot water heater.
Natural gas tankless water heaters are the best option for people who are already having an existing best RV tankless water heater as all the pipes and venting is present. If you are swapping from electric to gas, then you will have to change a lot which is going to be expensive.
Tankless gas water heaters are more costly than electric models, but you will be saving in the long term if the price of Natural Gas or Propane Tankless Water Heater is less than that of electricity in your area.
Talking about the warranty period of T-KJr-IN-NG is 10 years for the Heat Exchanger and 5 Years warranty for parts. It is the best tankless water heater for RV. Takagi T-KJr-IN-NG should be installed by a licensed authority to use the warranty. 

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Key Features:

Self-modulating feature
Made out of stainless steel
Various safety features

4. Girard 2GWHAF Tankless Water Heater

Girard 2GWHAF Tankless Water Heater

The 2GSWH is one of the latest introducing from Girard, one of the established best RV tankless water heater brands in the world. If you have to buy a new unit for your motor home or recreational vehicle, you can add this model to your list. It is very easy to operate, keeping hot water at the desired temperature you want. This unit is constructed and made with an on-board microprocessor, which records or monitors the temperature of cold water incoming. Along with this process, RV owners can always look forward to a constant flow of hot water. This unit is constructed with a good burner regulating capacity, which can keep the flow of hot water.
If it is winter, we won’t like to struggle for warm water because the heater is not working properly. It is stressful and frustrating because it’s the wintertime that we need steady hot water flow into our tankless RV water heater. It does not take up less space but also saves energy. The unit of 2GSWH works with 12 volts of power that operates at less than three amperes. You will love that this water heater is efficient still it does not consume more energy.
Choosing this model, you don’t use to buy any special plumbing or LP gas lines to conduct it. It is one of the best key features we appreciate in this product. If you’re looking for easy installation and save money in the process, we referred to this unit.
You can also trust it because it operates quickly with its brushless motor. So even if it is running, it won’t make any noise even in the middle of the night. You will also admire that this unit is useful even in the winter. The corporation has designed and made it with freeze protection. It is the durable best electric tankless water heater for RV

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Key Features:

Ideal even for winter use
Works with 42,000 BTUs for optimal performance
No special plumbing required
12V power operating less than 3 amperes
Brushless motor for quiet operation

5. Titan SCR2 N-120

Titan SCR2 N-120

Titan SCR2 N-120 tankless RV water heaters is a private unit that is very small in size and costs around 250$. Although it costs less, it can supply 4 GPM of hot water which is studied high for the price. It is suggested for point of use applications or a small house. As the GPM is only four it is suitable to provide hot water for a single bathroom and a faucet concurrently. Titan SCR2 N-120 is also the best option for people who are already having a whole house water heater and just looking for a bump in GPM. Suppose if you have a 7 or 9 GPM tankless heater and you only need 2 or 3 more GPM then rather than buying a larger one you can opt for this tankless water heater RV.
To discuss more GPM of the Titan SCR2 N-120 the 4 GPM acknowledged above is when the temperature difference is 20°F. With the rising in temperature the GPM decreases, for a 40°F rise you will get only 2 GPM, and for 81°F, you will get only 1 GPM. Again, the minimum activation flow is 0.5 GPM.
 If you are living in colder areas, then this model is not reliable. Installation of the unit is very easy if you have an existing setup; the warranty period for the heat exchanger is 10 years and for other parts is one year.
Certainly, if you are from warmer regions and looking for an electric tankless water heater for a low requirement of the house or as a point of a use water heater. Then this is the best option for electric point of use water heater you can find with high efficiency, good GPM, and small in size. It is the best RV tankless water heater for warmer regions where the normal water temperature is 70°F.

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Key Features:

Great for smaller spaces
Components can be recycled

6. Precision Temp RV 550

Precision Temp RV 550

You might also want to analyze the Precision Temp RV 550, which is another of the great performers in the Best RV tankless water heater industry. I am so impressed with Precision Temp RV 550 because I noticed that it works specifically for distinct applications, like RVs, tiny homes, trailers, mobile washing services, and cabins. One compatible quality that I would like to highlight in this hot water heaters for RV is its ease of duty. It is mainly because it is only available at a small and compact size. This means that it will never take too much space in your competitive vehicle. It is also easy to operate because of its lighter weight when compared to standard water heaters.
Another great advantage I am really happy about with this tankless water heater RV is the fact that it makes use of less propane compared to the others without negotiating its overall efficiency.
It also does its job well of providing hot water on-demand using its power that can reach up to 55,000 BTUs. It also boasts of its 1.5 GPM flow, which is more than enough to distribute a decent shower temperature water every time you need it. It is the best RV propane hot water heater for small spaces.

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Key Features:

Versatile since you are allowed to use it in a wide range of applications
Easy to manage because it is lightweight and compact
Guarantees less consumption of propane
Quiet and efficient operation
Provides a decent 55,000 BTU power

7. Bosch Tronic 6000 C

Bosch Tronic 6000 C

Bosch is one of the most famed and trusted companies in the world. From heaters, boilers, to storage tanks, they have to spend a lot on thermo-technology in recent years. The model is broadcast as a “whole house electric heater,” which is supposed to contribute enough demand hot water for both residential and commercial use. It comes as no amazement that Bosch is one of my top contenders for the tankless water heater reviews.
Depending on the appliances, Bosch declares that this heater can provide one to three taps with hot water at the same time. With a minimal temporary loss, it is 97% energy efficient. Although, the heater has a built-in flow sensor. The sensor will assure a consistent output temperature. It is the best RV tankless water heater for home use

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Key Features:

Good for larger households
• Built-in flow sensors
• Lightweight with a sleek design

8. Marey Gas 10L Tankless Water Heater

Marey Gas 10L Tankless Water Heater

If you are presently in search of highly phenomenal and dependable RV tankless water heaters then one choice that you should include in your list is the Marey Gas 10L. I will always suggest this unit because of its consistency in terms of delivering a steady performance in the industry. One thing I am fascinated with within this water heaters for RV is that it is designed to be compact. That is, I am confident that it can save a lot of space once you install it. The compact and portable design of this unit also makes it very easy to install almost anywhere you want.
It is also a great contribution as it has the capacity for heating an unlimited amount of water-based on your requirements. Further, it gives you the option of balancing the flow of both water and gas so you can gain the perfect temperature depending on what you prefer.
It operates without the requirement of any electricity. This means that with the presence of the Marey Gas unit, you will no longer need an RV tankless hot water heater just so you can still get a decent supply of hot water in case of power failure. It is the best tankless water heater for travel trailer

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Key Features:

• No more leaks
• Lightweight and durable
• Stylish and compact
• Requires no electricity

9. EcoSmart Eco 27

EcoSmart Eco 27

Choosing EcoSmart ECO 27 as the Editor’s Pick is due to its cheap cost on demand hot water heater for RV with high advantages, efficiency, and quality. ECO 27 had a posses Self Modulating Technology but also one of the best-selling and top-rated water heaters for RV. Self-Modulating technology increases the ability of this model to 99.8% which is save almost 50% of a standard tank heater.

Most electric models are easy to install, and for your warranty to be applicable it is suggested to install the heater by licensed personnel. EcoSmart comes with a lifetime warranty, but don’t get fooled by the words. Your EcoSmart ECO27 unit must be mounted within 30 days of purchase, and warranty registration must be filed and forward it within 30 days of purchase. It is the camper tankless water heater for cold days. If you don’t follow these, you wouldn’t get the lifetime warranty.

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Key Features:

• Stylish and compact
• Digital temperature control
• Efficient and durable product
• Components can be replaceable

10. Excel Tankless Gas Water Heater

Excel Tankless Gas Water Heater

If you are looking for a reliable tankless hot water heater for RV powered by gas then this product from Excel, which suits a wide range of uses and appliances, like RVs, rural cabins, campers, flats, small apartments, mobile homes, sailboats, boats, and hunting cabins, is an excellent choice. If you are on camping, having this best RV tankless water heater, heated lunch box, portable electric smokers, and heated travel mug can make your camping more enjoyable. 
I am assured that you will be satisfied with the ability of this unit to save both water and energy by establishing that it delivers and supplies hot water right after you open the hot water tap. I also find its beautiful and unique design impressive. It works well in giving a more attractive decoration in any area you decide to install it.
It works well when handling an incoming cold water temperature, which is approx 50 degrees Fahrenheit or more than it. Note, however, that it is also capable of handling lower temperatures just by using its control knob to adjust and decrease the flow rate of the water. It is the on demand RV water heater for commercial uses.

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Key Features:

• Can save both water and energy
• Supplies hot water on demand and in a rapidly
• Features a distinctive and beautiful design
• Allows you to adjust and decrease the flow rate of water
• Equipped with a magnetic water flow sensor

Tip: You may also check out our reviews of professional car wash mitts to give a clean and shiny look to your car.

Quick Review
  • Stiebel Eltron Tempra Plus
  • Rheem RTGH-95DVLN
  • Takagi T-KJr2-IN-NG
  • Girard 2GWHAF Tankless Water Heater
  • Titan SCR2 N-120
  • Precision Temp RV 550
  • Bosch Tronic 6000 C
  • Marey Gas 10L Tankless Water Heater
  • EcoSmart Eco 27
  • Excel Tankless Gas Water Heater


Shopping for the best RV tankless water heater will not be that amazing if you have an idea of what you should look for. Assure that you go for one, which is highly durable, too. It should be constructed out of superior quality and rust-resistant materials to assure that the water stays fresh and uncontaminated. The best option for you is also that which can deliver its purpose for the long term even with the least maintenance. We would like to thank you for reading this article. It will help to buy an RV tankless water heater.

About the author

Anne Frank

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