5 Best Electric Tankless Water Heater for RV

Last Updated on April 2, 2021 by Michael

5 Best Electric Tankless Water Heater for RV

When living in an RV or traveling, you need the best electric tankless water heater. In cold weather, you cannot wash your hands with chilling water. The benefits of using a heater without a water tank are many because it provides plenty of hot water. There is no limit because there is no water tank. Washing the dishes and taking long showers can be troublesome if you use a water tank heater. Also, the electric tankless heater operates on low energy consumption. Thus, it costs you less and benefits more. You can use the hot water all along with the trips for the whole day.

best electric tankless water heater for rv

When you use the standard heater for water, you can only use 6 or 10 gallons of hot water. There is a 10-gallon water tank that empties when you and your family use it. However, the electric heater that has no tank provides a limitless hot water supply. Also, the standard one takes hours to heat the water by consuming more energy. So, the tankless heater will never run out of hot water and heat the water quickly. When you buy the water heater, take all the measurements of the compartment for installing. There are many high and low capacity electric water heaters without a holding tank.


Another advantage of using these tankless water heaters is that they cost you less in the long-run. When you drive the RV, it consumes fuel. So, you are already spending on the traveling costs. A standard water heater adds to your expenses because it consumes more. If you use heaters that have no water tank, you can save a lot. These are smaller in size because they do not need any large-size water tanks. The less weight also helps these heaters to save more energy. The water heaters without the holding tanks can provide up to 2 gallons of hot water every minute.

Why use an electric tankless water heater for RV?

There are many reasons why the water heaters running on electricity and without water tanks are popular among RV owners. These do not have a holding vessel for providing hot water. Even if you do not use the standard heaters, they keep warming the water supply. Thus, they use up more propane gas or electricity in order to do so. However, the water heaters without the water collecting containers stop heating water. It is when you are not using the water that these stop functioning. So, the heaters without the vessels conserve energy and save you on costs.

electric tankless water heater for rv

There is no limit for you to use hot water when washing dishes, taking baths, or washing hands. The water heaters that have no holding water containers produce hot water when you need it. A standard water heating machine only provides the amount which its vessel holds. So, when that hot water runs out, the water heater needs to collect again. The cycle goes on and results in extra expenses for the consumption of the gas. Thus, the electric tankless water heaters work efficiently to heat the water on the spot. It can provide you with at least a gallon of hot water every minute.


Another advantage of using a water heater with no tank for the RV is that it is easy to install. These are compact and need no space for the water tanks. It is why the RV owners want to buy tankless heaters because they can comfortably fix them. Also, these are less pricey than the standard water heaters. There are no hefty water tanks, and there is no extra weight for the RV to carry. Plus, they provide hot water more efficiently and on-demand. There is no need for the electric water heater to heat water when no one is using it.

These also are cost-effective and water conservers. The standard heater keeps on using energy when you are not using them. Thus, we have the five best water heaters that require no water tanks. You can use them for the RV because they all are convenient to use and install. So, check the top five with their complete review featuring pros and cons.


1. Stiebel Eltron 230628 – (Amazons Choice)

Stiebel Eltron 230628 best electric tankless water heater for rvThe Stiebel Eltron 230628 240V tankless electric water heater is best for RVs and home use. It heats the water instantly and saves energy. You can save up to 50% of power consumption using the Stiebel Eltron water heater. There are protections for premature failures and dry fires. Thus, it a better choice for the RV and homeowners. You can sleep worry-free about any parts of this water heater to catch fire. There is an exclusive copper-clad element that heats up for better performance. So, the Stiebel Eltron 230628 is a high-quality water heater.

Features and Capability

Amazon also suggests that you buy this tankless water heater because of its many features. It provides you hot water on demand. There is a safety switch for shutting it down when servicing the parts. It produces no loud sounds because of the hydraulic controls. Thus, the RV owners feel no disturbances when the water heater heats the water. Whenever you want, the Stiebel Eltron water heater provides you with hot water. There is no water collecting vessel for this heater. So, you can wash dishes and use as much hot water you require.

The Stiebel Eltron instant water heater is available in many different kW sizes. So, you can buy the one that is compatible with the RV for installation. You can take all the measurements and buy the one that can fit into the compartment where you install it.

  • Available in different kW sizes.
  • Amazon recommends buying it.
  • Heats water instantly.
  • It has a resettable safety switch.
  • Safe from dry fire and premature failures.
  • All parts are durable.
  • Price is budget-friendly.
  • There is no hot water reserving tank.

check price


2. Stiebel Eltron – Tempra 20 Trend

Stiebel Eltron Tankless Water Heater - Tempra 20 TrendThe Stiebel Eltron Tankless Water Heater is an advanced water heating machine for instant hot water. There is no limit for the hot water supply because it can provide it on demand. Everyone can take showers, and you can wash the dishes all day. The Stiebel Eltron water heater never lets you down. Also, it saves on energy consumption and is eco-friendly. There is an auto modulation system with a digital temperature display unit. Every operation happens silently for not to disturb the RV family members. It is an energy-star compliant product, and so you can rely on its energy-saving feature.

Features and Capability

The continuous flow features allow you to use as much hot water as you want when taking a shower. Taking hot baths is now more convenient thanks to this technology of the Eltron heater. You can always set the temperature using its LCD panel. So, viewing the temperature of the hot water is always easy. The design of the Stiebel Eltron is space-saving for the RV owners. Thus, they can comfortably install it for the RVs. It is small and sleek in design for portability and easy fixing. The Tempra 20 Trend model of Eltron utilizes 19.2kW of power to heat the water.

The silent operation makes sure that there are no disturbances for you. There is one electronic switch for activating the hot water. The display shows the digital temperature of the hot water. Also, the interiors use an enduring copper heating system for better performance. You can use it to heat the water from 68 degrees to 140 degrees F. The manufacturer provides a 7-year warranty for no leakages. Plus, it comes with a 3-year warranty for the parts.

  • There is an LCD panel for reading digital temperature.
  • All parts have a 3-year warranty.
  • It heats water to 140 degrees F.
  • Produces no noise.
  • Consumes less energy.
  • It conserves the water by no wastage.
  • It is expensive.

check price

3. Rinkmo (Best Value For The Money)

Rinkmo Best Electric Tankless Water Heaters for RV

The best feature of the Rinkmo water heater is that you can use it at various places. It is best for office, home, and RV use. Also, it is for restaurants, apartments, hotels, beauty salons, and other commercial shops. The design of this water heater without a tank is of high-quality. There are fireproof metal sheet covers for the heater. Thus, it is safe to use at home or inside the RVs. It stops functioning when no one is using the hot water. So, it saves up on energy consumption and is best for lowering utility costs.

Features and Capability

The Rinkmo Electric Tankless Water Heater has an 18kW capacity. Thus, it consumes less power when heating the water. It can heat 2.5 liters of water every minute. The RV owners will find instant hot water for the dishwashing and shower continuously. There is an energy-saving function that shuts it down when there is no demand for hot water. Also, it comes with no mineral build-up materials. Therefore, the Rinkmo electric cam works for years without any maintenance requirement. The RV holders will find this feature beneficial because they are always on the go.

electric tankless rv water heater

When you plan to save on extra costs, the water heater without the tank is the best available option. The water-conserving feature does not waste water and only heats it when you open the taps. It is why the families living in an RV can take advantage of this water heating machine. It shuts down automatically. There are no complex functions. The Rinkmo heater comes with every available protection from water leaks and overheating hazards. It comes with a temperature-controlling knob. Also, there is a digital temperature display panel. When there is low pressure for the water, it stops functioning.

You can use this water heater to get a hot water supply all day. It can heat the water within 3 seconds. The heating element provides stable heating, and there is protection against overheating. The digital temperature is easy to read. There are sensors for providing flawless hot water. It can heat the water up to 167 degrees F.

  • It can heat water up to 167 degrees F.
  • There is an auto power-off function.
  • Provides instant hot water with stable temperature.
  • There are sensors for flawless water output.
  • It safeguards from overheating.
  • There is a digital temperature LCD.
  • It is a bit expensive.

check price

4. Ecosmart ECO 36

Ecosmart ECO 36 Electric RV Tankless Water Heater

The Ecosmart ECO electric tankless water heater can help you save 50% on your utility costs. There is no need to buy traditional water heaters that have bulky tanks. This instant water heater provides hot water up to 140 degrees F. The temperature control is digital for better convenience. If there is any need for maintenance, its elements are replaceable. Also, the Ecosmart ECO electric water heater is best for home and RV use. It installs with comfort and is easy to fix for the kitchen walls. There is no need to wait because it provides on-demand hot water.

Features and Capability

The capacity of this water heater is 36kW, and it comes with no water collecting vessel. Thus, it is best to use hot water in the RVs, homes, apartments, hotels, and other commercial shops. Also, it is easy to install and comes with EcoSmart features. These let is conserve energy when there is no demand for hot water. When you are traveling in an RV, you need to save water. Therefore, the heater will only work when you want hot water. It stops functioning when no one is using the water. That is why it is best for washing dishes in cold weather.

It comes with self-modulating technology and consumes 240V of electricity. The Ecosmart ECO 36kW water heater has the potential to heat 3.5 gallons of water every minute. Therefore, it can provide two showers with hot water at one time. Thus, the families living inside the RV can take showers with comfort. The standard water heaters collect hot water in the tanks. They constantly heat the water and waste utility. Hence, the Ecosmart instant water heater saves on energy and provides more hot water. There is no need to worry about hot water running out.

There is digital temperature control for setting the water temperature with comfort. Also, you can change the temperature using 1-degree changes. It allows you to save on electricity expenses. All of the materials are leak-proof and of high-quality. Thus, it can last long when using at home or in the RVs. Its compact design means that you have more storage space inside the RVs. It can heat the water up to 140 degrees F.

  • It has digital temperature controls.
  • There is an LCD for reading temperature.
  • It is leak-proof.
  • It can provide 3.5 gallons of hot water every minute.
  • The price is high.

check price

5. ECOTOUCH 5.5KW On Demand Hot Water Heater with Remote Control – (Best Budget Rv Water Heater)

ECOTOUCH 5.5KW electric tankless water heater for rvThe ECOTOUCH 5.5KW instant water heater is the most budget-friendly on our list. It is less in price but worthy enough for use at home or in the RVs. Also, it comes with remote control. Not many water heaters come with this remote control feature and at a low price. It consumes only 5.5kW of electricity. However, it provides 1.2 gallons of hot water every minute. If you have a large family and want to use it for showers and dish washing, then it might be not enough. But, it can work for a medium family that does not require high amounts of hot water.

Features and Capability

The ECOTOUCH water heater works on 5.5kW power to provide instant hot water. When there is no demand, it stops automatically. Thus, it is power-saving and lets you save on utility expenses. Also, it is best for small families. It can adjust its power for the flowing water. This water heater can heat the water up to 116 degrees F. There is a remote control for controlling the temperature comfortably. It is compact in size and easy to install under the sink, over the counter, or inside the RVs.

  • Provides 1.2 gallons of instant hot water every minute.
  • Only consumes 5.5kW at 240V.
  • Saves water from wastage.
  • Comes with remote control.
  • There is overheating protection.
  • The price is budget-friendly.
  • It is only for small families.

check price


If you have a small family and have less hot water demand, the ECOTOUCH water heater is best for you. Not only its less pricey, but it also consumes less electricity. However, the Stiebel Eltron 230628 240V tankless electric water heater is best for large families. It will provide you with endless hot water, and Amazon recommends it. If you live in cold places, the Stiebel Eltron Tankless Water Heater can heat water up to 140 degrees F. Make your choice in our unbiased list of best electric tankless water heater for rv and you wont regret it.

Leave a Comment