5 Best RV Tankless Water Heater Reviews 2019 : Complete Buying Guide

You are an adventurer and you like to out for camping, riding, and hiking. If you go out for camping in winter then you need hot water in showering. To make your cool water hot you need the best RV tankless water heater. You can use the best RV tankless water heater for your entire home or single use in your camping.

Choosing the RV tankless water heater is tough because there are…

Too. Many. Choices. 

So how do you know which one is best for your comfort showering?

 

To help make your purchasing decisions easier, we’ve compiled a list of the best RV tankless water heater around. We’ve rated these products based on three key factors:

  1. Quality of ingredients
  2. Customer reviews
  3. Brand reputations

Based on our research, the best RV tankless water heater brands cover a wide range of price, color, material, and quality. Plus, our adventurer friends love them. That’s sort of important, right?

5 Best RV Tankless Water Heater Reviews

Best of NameLookingOur RatingPrice
Best Gas Tankless Water HeaterTANKLESS LPG GAS WATER HEATER best gas tankless water heater
9.9 out of 10See Today's Price
Best Portable Tankless Water HeaterEccotemp L10 2.6 GPM Portable Tankless Water Heaterbest Portable Tankless Water Heater9.8 out of 10See Today's Price
Best Tankless Water Heater For RVGirard 2GWHAM On-Demand Tankless Water Heaterbest tankless water heater for rv9.7 out of 10See Today's Price
Best Propane Tankless Water HeaterCamplux 5L 1.32 GPM Ventfree Outdoor Portable Propane Tankless Water Heaterbest electric tankless water heater9.5 out of 10See Today's Price
Best Tankless Water Heater For Large HomesPrecisionTemp RV-550 Tankless Water Heaterbest tankless water heater for large homes9.2 out of 10See Today's Price

1. TANKLESS LPG GAS WATER HEATER – Best Gas Tankless Water Heater

You need a water heater to heat water and you love gas water heater rather than an electric water heater. Then this tankless LPG gas water heater is the best choice for you. It is known as LPG propane gas water heater so you don’t need electricity to run it and no need for a pressurized pump. It is very easy to use and control because just 2 PSI of water pressure is enough to start this tankless water heater.

Best Gas Tankless Water Heater

It comes with exclusive vent free technology so you don’t need any expensive fuel. It is more durable and effective water heater because it built with pure copper heat exchanger. You can make heavy-duty use of this water heater because it comes with a lifetime warranty. For amazing controlling system, it comes with LPG flare brass adaptor for the gas regulator. So, it is a heavy duty gas water heater with an awesome controlling system.

You know that this water heater built with low water pressure startup technology. So it doesn’t need high water pressure to run it just 2-psi is enough for starting it. Where a professional gas water heater needs 120-psi with pressurize pump or at least 20 or 30 psi to startup due to their outdated technology. This amazing gas water heater is ideal for RV’ s, CAMPERS, RURAL CABINS small apartments, flats, hunting cabins as well as boats, sailboats, and mobile homes.


Now, let’s talk about the Pros and Cons of TANKLESS LPG GAS WATER HEATER

Pros
  • LPG propane gas
  •  Starts with only 2 PSI of Water Pressure
  • Exclusive – Vent-Free Technology
  • Lifetime warranty
Cons
  • Need to install it properly
  • 2 batterise required

You can increase your cold water temperatures up to 50°F it can take lower incoming temperatures down to 40°F by reducing water flowrate. To control the water flow rate it has a control knob which is adjusted with it. To provide exact water flow rate it has a magnetic water filter sensor. For ensuring the quality and highly heated machine it has thermally efficient and durable copper heat exchangers. To run this water heater you need 2 size D batteries which is included with it.

Best Gas Tankless Water Heater

TANKLESS LPG GAS WATER HEATER

  • Vent-Free Technology No expensive Flue required
  • Starts with only 2 PSI of Water Pressure

FAQ about This TANKLESS LPG GAS WATER HEATER – Best Gas Tankless Water Heater

Is there a model that uses 12v from camper to eliminate batteries?
You can use a buck converter to achieve 3-4vdc off your main bank.
How long will it run on a 20# tank?
Not sure
Can you hook this to a 125 gal propane tank instead of the 20 gallon?
Yes

2. Eccotemp L10 2.6 GPM Portable Tankless Water Heater – Best Portable Tankless Water Heater

If you need the best portable water heater then you can try this. Because it is very easy to use and control. For easy controlling system, it has a 9-inch CSA approved gas regulator and for use on a standard 20 lb grill style tank it also has a hose. To produce more heat at the short time it includes stainless steel 74,500 BTU’s rain cap. For easy and safe use it also has a 0.5-inch NPT to garden hose adapter.

Best Portable Tankless Water Heater

It is an automatic gas water heater and you can reset when water stops and when it starts again. By defult, it is 20-minute automatic safety shutoff timer that means you don’t need to manually stop this water heater. As a fuel, you can use liquid propane and the CSA regulator for use with standard 20 lb. grill propane tank. So you don’t need any other expensive fuel. So it is perfect for outdoor showers.

It is very lightweight and easy to carry so this water heater can be your first choice when you are in camping. You can also make versatile use of it like dogs, horses, and other animals baths. It is a battery powered water heater so you don’t need to connect it with electricity. This machine comes with 20-minute automatic safety shutoff timer and pressure activated. For easy use, it has a removable weather-proof rain cap.


Now, let’s talk about the Pros and Cons of Eccotemp L10 2.6 GPM Portable Tankless Water Heater

Pros
  • Includes 9′ CSA approved gas regulator
  • Includes stainless steel rain cap
  • Liquid propane, CSA regulator
  • Includes 1/2″ NPT to garden hose adapter
Cons
  • Limited warranty
  • Price little bit high

It has an adjustable 20-80-psi water pressure range and a manual water temperature controls. It is perfect for on the go because it has field tested to 5,500 ft elevations. This water heater seamlessly works with any showerhead and hose which ensures it is very easy to setup and use. It is specially designed for easily hang or mount. Though the price is a little bit high you can try this awesome water heater.

Sale
Best Portable Tankless Water Heater

Eccotemp L10 2.6 GPM Portable Tankless Water Heater

  • Includes stainless steel rain cap; 74,500 BTU’s
  • Includes 1/2″ NPT to garden hose adapter

FAQ about This Eccotemp L10 2.6 GPM Portable Tankless Water Heater – Best Portable Tankless Water Heater

Is it possible to mount this product on outside of travel trailer?
Yes
How long does a 20-gallon propane tank last with this unit?
15-minute shower every day it should last 3 to 4 months depending on water flow and temperature.
Can this unit be exposed to weather?
yes….just don’t let it freezess…great unit…. I use it off the grid so battery ignition is great…..20 min hot water at a time just let it rest for 5 and it is ready to go again

3. Girard 2GWHAM On-Demand Tankless Water Heater – Best Tankless Water Heater For RV

If you don’t love gas water heater then you can use this electric tankless water heater. If you use this water heater you don’t need any fuel or pressurized pump. With this water heater, you can regulate the burner to maintain the set hot water temperature. There is freeze protection which is designed for Winter Use. It is a highly powerful and more effective water heater than others.

best Tankless Water Heater For RV

It is powerful and 42,000 BTUs which provides the maximum performance for an RV’s plumbing. And there is no special LP gas lines or special plumbing required. Though it is an electric water heater it is soundless because it has a quiet brushless motor. It is known as a power saving water heater because you need 12V power operates at less than 3 amps to run it properly. All the features ensure that it is a powerful water heater which is easy to use.

This awesome water heater built with the 2GSWH culmination of years of research and experience. This water heater is manufactured by “Girard Prod” which is very careful about customer demand and they try to include update technology in the upcoming new tankless water heater. It is a durable water heater which offers you endless hot water that is easy to operate. Just turn on the hot water and add cold water to the desired temperature.


Now, let’s talk about the Pros and Cons of Girard 2GWHAM On-Demand Tankless Water Heater

Pros
  • 42,000 BTUs
  • Quiet brushless motor
  • 12V power operates at less than 3 amps
  • Optimum performance for an RV’s plumbing
Cons
  • Price is high
  • Limited warranty

To maintain the flow rate and the outgoing hot water temperature it has a microprocessor monitors. It provides you steady hot water flow. To ensure a quality manufacturer offers you two- years limited warranty. That is more important to make your mental satisfaction high. Though the price of this water heater is high you can try this durable, long-lasting and power saving water heater.

Sale
best Tankless Water Heater For RV

Girard 2GWHAM On-Demand Tankless Water Heater

  • Regulates the burner to maintain the set hot water temperature
  • No special LP gas lines or special plumbing required

FAQ about This Girard 2GWHAM On-Demand Tankless Water Heater – Best Tankless Water Heater For RV

Does this have a winter use device (wud) ?
yes as long as there is the power to your camper if not you do have to drain it
Can this be used year-round in NC where outdoor temps can dip down to 0f?
Yes it can. The heater is equipped with an anti-icing feature built into the control software and a flow control valve to maintain adequate outlet, water temps. We just finished up a three-week stay at Yosemite with some heavy snow and subfreezing temps. As long as you have 12vdc and propane you should be fine…..and a heated water supply hose, of course. Obviously, if you will be storing in freezing temps you’ll need to winterize to prevent damage to your heater and water system.
Does it run on both electric or propane?
Only propne

4. Camplux 5L 1.32 GPM Ventfree Outdoor Portable Propane Tankless Water Heater – Best Propane Tankless Water Heater

In winter you need hot water to bath. To make you cold water hot you need the best propane tankless water heater. It is specially designed for outdoor use that’s why it is known as an outdoor portable water heater. Though it is an outdoor portable propane tankless water heater you can make both indoor and outdoor use of this water heater. It is very easy to use and control because it is the lowest water pressure startup on the market.

Best Propane Tankless Water Heater

To start and run this water heater you just need 2.5 PSI of water pressure. This amazing water heater also works great with Complex 12V 1.2GPM water pump. With this water heater, you can raise your water temperature 114.8℉ or 46℃ within a short time and it is the highest temperature of this water heater. The minimum temperature rise is 46.4℉ or 8℃ for the 1.32GPM water heater.

You already know that it is very easy to use and control. This compact size water heater comes with a folding handle that keeps it out of the way and greatly helps for a convenient set-up outdoors. it is a flame failure device so it is safe than any other professional water heater. For more safety, it has anti-freezing protection and oxygen depletion safety shut-off protection.


Now, let’s talk about the Pros and Cons of Camplux 5L 1.32 GPM Ventfree Outdoor Portable Propane Tankless Water Heater

Pros
  • Great with Camplux 12V 1.2GPM water pump.
  • Lowest water pressure startup
  • Energy saving technology
  • 1.32 gallons per minute
Cons
  • No top vent cap

It is a high-performance water heater because it can give you 1.32 gallons per minute of hot water output. This water heater built with energy saving technology so it consumes low energy. Hence it is an outdoor water heater so you can get instant endless hot water easily wherever you are that means it is highly perfect for camping. This water heater also works great on modified water systems with a 12-volt water pump.

Sale
Best Propane Tankless Water Heater

Camplux 5L 1.32 GPM Ventfree Outdoor Portable Propane Tankless Water Heater

  • Lowest water pressure startup on the market! Just need 2.5 PSI of water pressure
  • Also works great with Camplux 12V 1.2GPM water pump.

FAQ about This Camplux 5L 1.32 GPM Ventfree Outdoor Portable Propane Tankless Water Heater – Best Propane Tankless Water Heater

Can this be used with house pumps?
All the Camplux heaters show the following incoming water pressures minimum 5 psi Maximum 110 psi
Will this run well on a 20 lb propane tank how long will it last?
Yes. 5lbs bottle lasted 2 weeks.
Do you have to have a water pump?
it will works perfect with camplux water pump

5. PrecisionTemp RV-550 Tankless Water Heater – Best Tankless Water Heater For Large Homes

If you need to buy an RV tankless water heater for a large family then you can try this durable and long-lasting water heater. This water heater specially designs for Vs, trailers, houses, cabins, mobile washing services, and more so you can make versatile use of it. It is lightweight and small enough so it just takes up 1/2 space and weighs 1/3 as much as a 10-gallon tank.

Best Tankless Water Heater For Large Homes

The propane efficiency of this water heater is very high and there is no pilot light on this heater. To ensure easy and safe use it comes with reliable, proven VariFlame technology control system. So, you can easily use and control it. Most importantly it is designed, assembled and tested in the USA that also ensures the quality of this water heater. This amazing water heater conserves both water and energy at the same time,

It is highly portable because of the weight of this water heater only 32 pounds. That means it is lightweight and easy to carry one place to another. You can use it only when a hot water tap is turned on. It is a high-performance water heater and approximately 940 gallons of hot water a 20-pound tank of propane is well enough. This water heater has a true automatic gas modulation.


Now, let’s talk about the Pros and Cons of PrecisionTemp RV-550 Tankless Water Heater

Pros
  • Designed specifically for RVs, trailers, houses, cabins,
  • Very high propane efficiency
  • Highly durable
  • VariFlame technology control system
  • Designed, assembled and tested in the USA
Cons
  • High price
  • No warranty information

Automatic gas modulation means it automatically adjusts the gas usage based on variations in water flow and incoming water temperatures. That means it can control temperature without overheating the water or not heating it enough during colder weather. It is known as an energy-saving water heater because it uses less than 1.5 amps of power in normal operation and a maximum of 3 amps when the cold weather protection.

Sale
Best Tankless Water Heater For Large Homes

PrecisionTemp RV-550 Tankless Water Heater

  • Designed specifically for RVs, trailers, tiny houses
  • No pilot light and very high propane efficiency

FAQ about This PrecisionTemp RV-550 Tankless Water Heater – Best Tankless Water Heater For Large Homes

Does this unit retrofit into a 6 gal Atwood unit space?
Yes
Will this fit a 2018 aspen trail camper?
You can find the clearly stated dimensions in the manual.
Can this be wall mounted?
Yes

Choosing The Best RV Tankless Water Heater: A Definitive Guide

As a hiker, tourist or traveler, it’s your job to ensure you’re purchasing the best quality outdoor products that fit your budget and need. To do that, it’s important to get comfortable reading the ingredients list on any product you buy. 

Here is a quick video to know how to choose the best RV tankless water heater for your daily use.


Choosing the best RV tankless water heater might be a bit difficult but don’t worry, we have done the work for you. You should choose the best RV tankless water heater according to a few things mainly. There are other things as well depending on the variety of outdoor product that you want to have.

What do you need to consider in buying the best RV tankless water heater?

There is a lot of features you need to consider to buy the best RV tankless water heater. Some example is given below…

The Flow Rate of The Water

In choosing the best RV tankless water heater water flow rate is the most important factor which is needed to consider. The flow rate means the amount of hot water goes throw in this water heater per every single minute. Generally, people use the RV water heaters for showering, a water heater which can release 2 to 2.5 gallons per minute is more than enough for the average family. If you want to buy it for a large family you need to choose the water heater which has a high water flow rate.

High Temperature

The best tankless water heater is the one that can produce a temperature increase of between 60 to 40 degrees F. Generally, in winter a good shower demands an average of 104 to 1060 F temperatures where the kitchen activities may need less than 1040. In this case, you can choose the propane powered tankless water heaters because it can provide a temperature increase than their specific electrical powered counterparts. So in order to get high performance you need to select the water heater that can produce high temperature in a short time.

Gas or Electric

In choosing the best water heater first, you need to consider which type of water heater do you need like is it gas or electric powered. If you want the right tankless water heater for your RV. do you want the unit to be powered by gas, electricity, or both? If you want to buy a water heater which is gas powered it can give you high efficiency on the other hand if you want electric one it can make your water hot in a short time.

Entire Home or Portable System

You also need to consider that is you buy this for single use like camping or for the entire home. If you choose your RV for the home you need to select the high performance on the other hand if you want for portable use like camping small one is enough for one. In the case of a portable water heater, it must need to be lightweight and easy to install and for family, it needs to be a large one.

Energy-Efficiency

Energy- efficiency is one of the most important factors which is needed to consider in choosing the best RV tankless water heater. If you choose a water heater with higher energy efficiency that means you need lower annual operating costs. High-efficiency RV tankless water heater that uses less energy will not only lower down the cost, but it’s also better for the environment. So you need to select the water heater with high energy efficiency.

Venting

Most of the RV tankless water heater that uses gas needs to have a venting system. Generally, most of the RV tankless water heaters come with a direct venting system. Direct venting system means they actually have two vents – one pulls the air in from the outside while the other serves as an exhaust. The venting air can either go through two pipes – on for the inlet that input cool and fresh air and one for the exhaust the hot air is insulated inside the cold air pipe.

Price

In the case of buying a product, the budget plays a very important role. Because you know that a good quality product is a little bit costly. This statement is not true for all product. If you have a budget problem you can try the RV tankless water heater that can hold the second or fifth position on our list. On the other hand, if you don’t have a budget problem you may try the “PrecisionTemp RV-550 Tankless Water Heater” that can hold the fifth position on our list.

Weight

In choosing the best RV tankless water heater is another most important things you need to consider. Because if the weight is so much then it is not easy to carry to one place to another. At the same time if your RV tankless water heater is heavy then you don’t hang it camping tent top or wall and you need to hard and plain surface to stand or gang it. So you need to choose a tankless water heater which is lightweight and easy to carry.

Warranty

The warranty becomes useful whenever your cRV tankless water heater damages, came with a defective part, part missing parts or another type of complaints. If the tankless water heater comes with a warranty the company may fix or replace the worst one depending on the terms of the warranty and the company’s policies. If you buy the RV tankless water heater which doesn’t have any warranty you need to fix it or by yourself at your cost. That means you have to spend some additional money. That’s why you need to ensure the warranty period is very long don’t just buy a product with a warranty for a short time.

For your mental satisfaction, it is just to buy a product that has a warranty. If a product has a warranty you can use the product without any hesitation. Most of the manufacturer offers you 30 days money-back guarantee. Where some offer’s you lifetime limited warranty.

Brand Reputation

Brand reputation is also considered to select the best product. Someone believes in the brand. For the reason that we also realize that the brand is also a good factor before buying the best RV tankless water heater. So you can believe in our review. Because we have selected

  • Excel
  • Eccotemp
  • Girard Prod
  • PrecisionTemp

for reviewing our top products. These are one of the best brands for the best RV tankless water heater. Our all products reviewed according to both pro and beginner. You can select any of the above brands for today.

Other feature

When you decide to buy the best tankless water heater you need to consider more other features like the durability, quality of material from which it made, rain cap, pipe connection valve, Color, etc. By considering these feature you can select the best one for you.

Make sure you read the instructions of the manufacturer always before paying for your best one or that is great for long-lasting and durable.

If you want to get more information to know the proper installation or use of your best RV tankless water heater you must watch the full video here.


If this review was helpful to you, let us know. Shoot a comment below with any questions or comments about the best RV tankless water heater or even with any other camping product you’d like reviewed.

Outfit Boss

John Diaz is the founder and Editor of the Outfit Boss. He had a lifelong love affair with camping and a fascination with outdoor products. He enjoys coming up with outdoor and camping projects to complete with his friends. He's been known to disassemble tools just to see how they work and has a tendency to break tools while testing them.

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