Best RV Tankless Water Heater

Girard 1GWHAF Tankless Water Heater

Girard 1GWHAF Tankless Water Heater

Girard 2GWHAM Tankless Water Heater

Girard 2GWHAM Tankless Water Heater

 PrecisionTemp RV-550 Tankless Water Heater - Wall Vented

PrecisionTemp RV-550 Tankless Water Heater - Wall Vented

Traveling in an RV may come with its own challenges. Manufacturers have developed a variety of products with the intention of making your trips or camping activities a success.

The tankless water heater is one such item. It has been created to give you convenience and comfort in the event that you need warm water for a variety of functions, no especially showering.
You will be able to enjoy luxury showers. In addition, there will be no need to wait for the water in the tank to heat up, as you will be having this portable model at your convenience. In a nutshell, this is the perfect model for your need in an RV.

In modern times, it is important that you carefully consider all the factors before making a decision on the purchase of a tankless water heater. It is currently hard to tell the difference between authentic and counterfeit products.

In today’s article, we shall be reviewing the best tankless water heaters. Furthermore, we have included a buying guide at the peripheral section to aid you in the choice of products.
This includes a ton of factors and various specifications that the product comes with.

Best RV Tankless Water Heater List


Girard 1GWHAF Tankless Water Heater

Girard 1GWHAF Tankless Water Heater

This model is versatile and flexible in terms of performance. It can be used for an existing 6-gallon tank. In addition, the durability aspects are assured. The model has been made with high-quality materials.

It will indeed work for a very long time. Your water will be kept warm at all times. This is a compact model. It is easily portable because of this and the lightweight aspect. This gives you the convenience you need for such a model.

The installation process of quick. You can always install it in a matter of minutes. There is scarcely a new for a technician or plumbing expert, as you can easily follow the instructions manual in case it is your first time purchasing the equipment.

The temperature settings can be adjusted easily. This specification adds to the versatility aspects. The compact design is able to save a lot of space within the RV.

In addition, there will be no need for constant repairs and maintenance routines, as the model is durable and long-lasting.


  • This model is quite affordable. You will acquire it with ease, without having to cough up a large sum.
  • The materials used in the construction of this heater are high-quality. This adds to the durability and longevity aspects.
  • The temperature settings can easily be adjusted.
  • The model is compact. It saves a lot of space.
  • There is no need for frequent repairs or replacements, as the construction is sturdy.


  • It is noisy.


Girard 2GWHAM Tankless Water Heater

Girard 2GWHAM Tankless Water Heater

It is one of the best options in modern markets. It will help greatly in winter seasons, as it provides hot water consistently. It also works with 42,000 BTUs. This gives the product impeccable workability aspects, as it works optimally.

There is no need for special plumbing. You can easily install this model. In circumstances where you are just purchasing the model for the first time, it is advisable that you follow the instructions provided in the manual that accompanies the model.

The heater uses less than 3 amperes, thanks to the 12V power operational frame. This saves a lot when it comes to electricity bills. The model is a product of a reputable brand. This is an assurance of durability and workability.


  • The on-board microprocessor monitors changes in the temperature of the incoming cold water.
  • The brushless motor system is responsible for noise prevention. It is quiet.
  • The model has a good burn regulation capacity.
  • It is durable.
  • No special plumbing is required during installation.


  • It is expensive to acquire


PrecisionTemp RV-550 Tankless Water Heater

 PrecisionTemp RV-550 Tankless Water Heater - Wall Vented

You can rely on this model as it will work perfectly and for a very long time. It is an to work consistently, as the model has been made with high-quality materials that give the model stability in terms of functionality.

It is a compact model. This ensures that even in small spaces, you are able to use it effectively. It takes up little space. You can use it as a multi-functional model. It is entirely versatile and flexible in functionality.

You can use the model in trailers, RVs and other small units that require flexibility in Mobil washing. It works perfume with enhanced propane efficiency. It is indeed a high-quality product. The materials used in construction make it durable.


  • It is flexible when it comes to usage. You can use it in trailers, RVs and small home units.
  • The enhanced propane workability makes the functioning effective.
  • The self-adjusting gas usage works well with the detection of incoming water temperature and general water flow.
  • It is durable. The materials used in construction are high-quality.


  • It is a heavy model.


Camplux 5L 1.32 GPM Tankless Water Heater

Camplux 5L 1.32 GPM Tankless Water Heater

This model works perfectly and efficiently. It provides way heating services consistently. It has a flame failure device, to facilitate efficacy when heating the water. All the features have been designed to facilitate effective performance.

The safety shutoff protection feature ensures that the model automatically turns on and off with regard to temperature conditions. It has a compact and solid design. This ensures that it works effectively and for a very long time.

It will also fit well in tight spaces. This gives you additional space to exploit within your RV. The freeze protection feature is another advancement when it comes to technical aspects of the model.

You can always rely on this heater for all your needs. The durability aspects will improve the workability aspects of the model. In addition, it is compatible with the majority of the Camplux devices. You will connect them easily for functionality.


  • It has a safety shutoff protection feature.
  • It is reliable, durable, and portable.
  • It saves a lot of energy.
  • It is compatible with Camplux devices.
  • It has freeze protection abilities.
  • It is compact and solid. It will fit in the tightest of spaces.


  • The maximum water output is 1.32 GPM.


Excel Tankless Gas Water Heater

Excel Tankless Gas Water Heater

The good thing about this model is that it doesn’t require a pressurizer pump. It comes with its own lifetime warranty on the copper heat exchanger.

In any event that your heater has defects in performance, you will return the model for replacement or repair of the copper heat exchanger.

The vent-free technology will give the model proficiency in workability. It saves a lot of energy, as it does not consume a lot of electricity in the process. Furthermore, the model is water-saving.
The free LPG flare brass adaptor is an additional accessory that connects the model to the power supply. The cool and elegant design makes it the perfect choice. You can rely on it for longevity and prolonged performance.


  • It is reliable.
  • There is a lifetime warranty for the copper heat exchanger.
  • It has a vent-free technology.
  • It is both energy and water saving.
  • It does not require a pressurized pump.
  • It is stylish, as it has a cool and elegant design.
  • There is a free LPG flare brass adaptor.
  • It is a cost-effective model.


  • It cannot be used for at least a single point at a specific instance.

Things to Consider Before Purchasing the Best RV Tankless Water Heater

Choosing the best RV tankless water heater can sometimes prove to be a hectic task. This is because of the various market factors that arise in modern markets. It is even impossible to distinguish the authentic products from the counterfeit ones.

When making a purchase, it is important that you exercise keenness in the process. It is advisable that you exercise keenness in every step of the process. This will help you in choosing the right product.
There has been a significant rise in the number of sellers and manufacturers who masquerade as honest business people but with the intent of selling poor-quality products to the buyers.

It is important that you equip yourself with knowledge and information that will help you in knowing the right heater for your RV. In addition, you will easily examine and evaluate different products so as to pick the best one with regard to your needs.

In this segment, we intend to take a keen look at the various factors that affect the choice of a buyer in the market.

We have included a variety of aspects and features that you should constantly look out for, so as to determine the right product for you.

Best RV Tankless Water Heater 2


Market Research

The first step in the buying process is conducting market research. This is one of the most important factors when it comes to purchasing a product. This is because it is the process that you get to familiarize yourself with the product from a wider perspective.

Market research can basically be referred to as a process in which a buyer reviews all the products in the market and determines the ones that influence the choice of purchase, in terms of selection at the very end.

There is a need for buyers to conduct market research, especially with the emerging trends in markets today. It is quite hard to differentiate between counterfeit products from authentic products.

When looking for a water heater for your RV, it is possible that you may come across different models in the market scenes. A large number of manufacturers and sellers have come into the market scenes, each person bearing different intentions.

There are basically two types of market research programs, the first one is online market research. It is a process in which the buyer visits online platforms, such as websites and online stores in mobile apps.

The major purpose of this method is to amass as much information as possible. The buyer seeks to get all the features relating to the product he or she intends to purchase. It has been noted as one of the most productive research methods.

This method essentially requires you to be in possession of a laptop, desktop computer or mobile phone. You ideally require a device that can connect to the internet in a matter of seconds.

Additionally, you would require a stable internet connection to facilitate the whole process.
When conducting market research on the water heater, it is advisable that you do so on websites and other sites that are reputable and famous for the remittance of authentic information.

This is because there are some websites that come up with their own information and post it for the general public to see, with the basic intention of gaining publicity and having more followers.

You should avoid such sites. You are advised to conduct your research on prominent websites and online stores such as Amazon. In such sites, you will definitely get a better chance of obtaining quality information that has been verified by the authorities.

In major websites, products are aligned together with their pictures, specifications, and additional features. In case of additional accessories, you will get an indication close by to give you the relevant information.

Apart from the product information, pricing is also made. This gives you the chance to weigh the various options. You will definitely know the ones that are available within your financial limits, or the ones that you can invest in wisely.

The other thing about online research is that you get to have a glimpse of the customer reviews and the product ratings. Customer reviews bear a significant impact on the entire purchasing process.

When checking for custom reviews, it is advisable that you take note of the ones that have been posted by verified purchasers. This will ensure that you avoid any incidences of misinformation.

Just like in virtual markets, online markets are famous for conmen and dishonest dealers. There are categories of buyers who post fake reviews, with the major intention of tainting the good name of the brand.

That’s why it is advisable that you only take note of the verified category of buyers. This will ensure that you get the right information, that is not only honest but also helpful and relevant to the study exercise.

There are additional product ratings. Product rating is majorly done out of five. There are five stars that the product is rated out of. The most prolific ones range at about 4 to 5 stars. That one will definitely be an average rating that can be considered.

Poorly rated products range at about 1 to 3.6. There are other product ratings that are done or conducted by sellers, according to the buying preferences and concerns from buyers. You can also check such rating information.

The basic advantage of online research is that you can choose to make your purchase online and enjoy the varied sale discounts offered by online sellers. This may save you a lot of money in the process.

The other method of research conduction is by window shopping. Window shopping is done physically, through the visitation of local stores, convenience stores, supermarkets, wholesale and even retail shops.

The good thing about this type of research is that you can get to know products physically. You can touch them, feel them, check out their sizes and evaluate all other specifications that you intend to look for in the most convenient model for you.

Additionally, you will be able to meet sellers, manufacturers and even buyers in the process. All these people bear a significant impact on the market research process, as they have their own perspective when it comes to the choice of products.

Sellers have quite a vast experience when it comes to giving out advice to customers. They know the products that are suitable in different conditions. In addition, they can give you good recommendations according to the budgets you intend to work with.

Manufacturers and sellers can always give discounts to buyers when there is an agreement on the purchase. This seems to be beneficial to both parties, as customer loyalty is enhanced in the process.

Manufacturers also give buyers advice. Their stores are better, as they do not have the middlemen who tamper with the pricing or quality of products at times. You will get a chance to test the proficiency and workability aspects of the water heaters.

Buyers may be looking for upgrades to their existing models. It is important to note that such buyers prove to be helpful in the buying process, as they give you their personal perspectives regarding the workability aspects of the model.

When choosing a product, it is always important that you conduct adequate market research. In the course of the purchase, it is advisable that you examine and evaluate the products with keenness, care, and precision.
This will ensure that you get only quality products.


Types of Tankless Water Heaters


Gas Water Heaters

These water heaters are powered by propane, LP or kerosene. It has been tested and proven that they have an 85% effectiveness functionality. They are cost-effective, as the gas costs are comparatively lower in modern times.

They are generally affordable. They are cheaper to acquire. These models, however, require proper venting so as to release the greenhouse gases. This may lead to air pollution in the process.


Electric Water Heaters

These are deemed to be environmentally friendly. They are also cost-effective, as they only require electric power to work. It is easy to install such models. They are proven to be 99% efficient. They do not release greenhouse gases.

When choosing the best model, it is important to know the availability of resources that facilitate the powering of such models. This will help in the functionality of the model, as it will be easier to get the resources to power the heater.


​Water Capacity

You may look for models that have a standard 6-gallon capacity. This will hold enough water to cater for your early morning needs.

When making a purchase, it is important that you know the exact size of the people who will be relying on the heater for warm water. You should always choose a model that has a size that takes good care of all the family or crew sizes and needs.


​Heat Output

This is always stated or provided for in British Thermal Units, otherwise known as BTU. You should choose a model that has a higher BTU rating. Models with higher ratings heat the water faster.


Water Output

The water output of a tankless water heater is provided for in gallons per minute, otherwise known as GPM. You are advised to choose the model that has the GPM that suits your needs in entirety.



You should always check that the model has all the accessories it requires for proper functioning. The accessories should be complete. This includes the availability of adapters, showerheads, hoses, and other fittings.

There should be an instructions manual that will help you out, especially if you are a first-time buyer.


It is advisable that you go for a model that is easier to install. The right product will be installed in a matter of minutes.

Additionally, you can always consult the user manual. In case you still experience difficulty, you may call for the presence of a technician who can help with the installation process.

In my recommendation, I would advise that you go for the Girard 2GWHAM Tankless Water Heater. This is because it is the perfect solution, especially in cold seasons like winter. It will keep you warm through the consistent heating of water for your household needs.

It works with 42,000 BTUs. This is optimization when it comes to performance. Additionally, the heater does not require a plumbing technician to install. You can easily install it at your own convenience.

It comes with a brushless motor to reduce noise levels. It is entirely a quiet model. The heater has been manufactured by a reputable brand. You are assured of quality and durability.

It has a good burn regulating capacity. The on-board microprocessor monitors temperature changes of incoming cold water.

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