The 6 Best RV Tankless Water Heaters [2022] – Instant Hot Water


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October 12, 2022

The best RV tankless water heaters are a great addition to any RV. They provide hot water instantly, which is perfect for RVs.

An RV tankless water heater can be placed anywhere in the RV, unlike traditional storage tank units that need to be mounted near the water source. Tankless water heaters are also much more efficient than storage tanks because they use less electricity to heat the water.

These heaters are available in various sizes and styles that can be installed inside or outside your RV. The best models have an electric or propane connection so they can be plugged into any standard outlet or propane gas supply line.

The Best RV Tankless Water Heaters

Suburban 5239A RV Tankless Water Heater

suburban 5239a rv tankless water heater

The Suburban Tankless Water Heater is a high-quality, energy-efficient water heater designed to eliminate the problems associated with traditional storage tank heaters. The Suburban 5239A is ideal for use in RVs and travel trailers.

This tank has a maximum capacity of 6 gallons and can produce hot water to fill your needs, making it perfect for any application where you need to quickly heat water. The Suburban RV Tankless Water Heater also has a wind heater system that allows you to start up your heating process without having to worry about lighting the appliance manually. This feature makes it easy to use in any location where you need quick access to hot water on demand.

This model features a stainless steel outer casing that provides excellent corrosion resistance and durability over the long term. Also included with this model is an anti-corrosion coating inside the unit that prevents rust from forming on internal components. This ensures that your unit will continue working properly even after years of use without requiring frequent maintenance checks or repairs.

Rinnai RU80EN 8.0 GPM Tankless Water Heater For RV

rinnai ru80en 8.0 gpm tankless water heater for rv

This unit is a great deal for the money. Rinnai is a great brand to choose from if you are looking for a tankless water heater, and this model has some nice features that other similar units don’t have. It’s easy to install, and it comes with all the necessary parts for installation. You can have it up and running in about an hour after you turn it on .

The RU80EN has a stainless steel body that looks great in any bathroom. It’s also more durable than other models with plastic bodies. The controls are simple and easy to use even if you’re not familiar with tankless water heaters at all. 

This unit will work well with your existing water pressure so you won’t need to worry about upgrading your plumbing system or buying expensive parts or supplies just because you bought this unit instead of another brand or model.

Eccotemp i12-LP 4 GPM RV Tankless Water Heater

eccotemp i12-lp 4 gpm rv tankless water heater

The Eccotemp Tankless Water Heater is a great addition to any RV. This portable tankless water heater can be used with a variety of different applications. It is designed to heat a shower, sink, or bathtub and can produce up to 4 GPM. This Tankless Water Heater is small in size and can be easily mounted on any wall. It doesn’t produce any fumes. It is also very easy to install and operate.

The Eccotemp is designed for use in smaller spaces such as RVs. It does not require a venting system. This is what makes it  ideal for use in these types of environments. The unit has a built-in pressure relief valve that prevents overheating, pressurization, or backflow contamination from occurring during operation. There is also an automatic thermal cut-out feature that shuts down the unit if it begins to overheat or if there is a loss of power supply to prevent damage from occurring to the unit itself.

Camplux 10L 2.64 GPM Portable Tankless Water Heater with Propane Gas 

camplux 10l 2.64 gpm portable tankless water heater with propane gas

The Camplux 10-liter portable Tankless Water Heater is an ideal solution for  RVs, campers, or any other small space where water needs to be heated quickly and efficiently. With a flow rate of 2.64 gallons per minute (GPM), this portable tankless heater offers a steady supply of hot water at any desired temperature. 

The unit comes with a built-in pressure regulator that ensures consistent and safe operating pressure, so you don’t have to worry about damaging your home’s plumbing when using this heater indoors. It also features an automatic safety shutoff function that prevents accidental overheating and burns due to overuse or blockage of the fuel line.

This portable heater features fittings which can be connected directly to most standard propane tanks without any additional adapters required! The Camplux Tankless Water Heater comes with everything you need for quick installation, including a manual control knob for adjusting the output temperature, as well as an LED indicator light.

PrecisionTemp RV-550 Tankless Water Heater

precisiontemp rv-550 tankless water heater

The PrecisionTemp RV-550 Tankless Water Heater is a compact, efficient and durable unit. This unit is ideal for use in any recreational vehicle, travel trailer, or campervan. The Tankless Water Heater can be installed in minutes and does not require the installation of a traditional water heater.

This heater is designed to provide hot water where it’s needed when it’s needed. This portable tankless water heater can be located anywhere in your RV or camper where there is a drain line. The unit does not require any additional venting so it can be installed almost anywhere making it perfect for use on RVs.

The PrecisionTemp Water Heater features a capacity of 10  gallons and has an energy efficiency rating of 78%. Since this is a tankless unit, there are no tanks to fill up with water making it an ideal choice for RVers who are on the move.

The PrecisionTemp Heater comes with everything you need to install it yourself including detailed instructions that are easy to follow along with all the fittings and connectors.

Bosch Mini Electric Tankless Water Heater

bosch mini electric tankless water heater

Bosch mini electric tankless water heater is a new and innovative product from Bosch. It is developed to provide you with instant hot water whenever you need it. The product comes with an integrated pump, making it easy for you to install the device either above or below your sink.

The Bosch water heater will heat up cold water on demand, which means that you do not have to run the faucet constantly to get hot water. The device features a control panel that allows you to set the temperature of your desired water temperature as well as its flow rate. This can be done using the in-built rotator display.

Installing this product does not require any plumbing work or expertise and it can be set up within minutes by anyone who knows how to use basic tools like screwdrivers and hammers etc.

This Mini Electric Tankless Water Heater has an automatic shutoff feature that turns itself off if its sensor detects an issue with your water supply or if there’s an electrical malfunction (or both). 

Frequently Asked Questions

Are Tankless Water Heaters Difficult To Install In An RV?

The short answer is no. They are not difficult to install in an RV. If you have a brand-new RV, then installing a tankless water heater should not be a problem at all. All of the necessary parts will be included with the purchase of your unit and installation can be completed by just about anyone who knows how to use a screwdriver and wrench.

If you have an old RV, then you may need to do some modifications in order to make room for your new unit. This includes removing walls and cabinets to fit the size of your tankless water heater into the space available.

This process can be very time-consuming and tedious if you’re not used to doing plumbing work on your own or if you don’t have access to any tools needed for this type of job (hammer, screwdriver, wrench). 

However, if you’re handy enough, then it shouldn’t take too long for you to complete this project on your own or with some help from friends or family members who know what they’re doing when it comes to working on RVs!

Do Tankless Water Heaters Need Cleaning?

You should clean your tankless water heater every once in a while. A dirty tankless water heater could lead to problems such as poor performance or even failure of the unit. You must ensure that you are keeping your unit clean for optimal performance and safety reasons.

You should never use harsh chemicals or abrasive cleaners when cleaning your tankless water heater because these could damage the finish or even corrode it over time. Instead, you should use warm soapy water and a soft cloth to wipe down all surfaces of the unit. 

It’s also important not to use any type of abrasive material to clean off any mineral deposits on the heating coils as this will cause them to become clogged over time which can reduce their efficiency significantly.

What Is The Difference Between A Condensing And Non-Condensing Tankless Water Heater?

A condensing tankless water heater uses a heat exchanger to capture the heat from the exhaust gasses before they leave the unit. The exhaust gasses then go through another heat exchanger which transfers their heat to incoming water.

The result? A much more efficient system than a regular tankless heater! This gives you greater savings on your energy bills and reduced greenhouse gas emissions because you’re using less energy overall.

A non-condensing tankless water heater doesn’t have an internal exchanger for collecting exhaust gas heat, so it’s not nearly as efficient as a condensing model. However, this also means that it’s smaller and less expensive than its counterpart. And since these models don’t require ventilation systems, they’re easier to install as well!

Can I Mount A Tankless Water Heater Anywhere In My RV?

Yes, you can mount a tankless water heater anywhere in your RV. However, some considerations need to be taken into account when doing so. The first thing you should do is check the weight rating of the wall or ceiling where you plan to mount your tankless water heater. You want to make sure it can support the weight of your unit.

Next, think about where you want the hot water to be coming from. If you only have one bathroom, then it doesn’t matter where you place it because you will be using only one faucet at a time anyway. If however, you have multiple bathrooms, then you may want to consider installing the unit closer to where most people will be using it because otherwise, they will have to wait for their hot shower or bath.

Another thing worth considering is that an outdoor tankless water heater can cause problems if there is any type of rain storm or another weather event while it’s turned on because they require electricity to function properly and if they lose power during this time then they could flood out your RV by overflowing and causing damage to other areas as well as causing damage to yourself and others nearby who could be harmed by any electrical shock.

Every product is hand selected by our editors. We may receive commissions on purchases from a link.

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