The 10 Best Portable Electric Water Heater Reviews & Buying Guides in 2019

Whenever you go out for a trip or live in a small apartment with two or three family members, the best portable electric water heater will offer you a wonderful bathing time.

Compact shape spares you more space for other decorations; Electricity power design reduces the emission of carbon dioxide. Anyway, buying a small portable water heater can never be a bad idea for small homes.

What is the best indoor electric portable water heater?

How about the portable water heater price?

This article is written to solve all the problems relating to it. Through detailed portable heaters reviews and buying guides, you can definitely choose the ideal type.

Now, let’s get started!

What Is the Best Portable Electric Water Heater?

Best OverallEcoSmart ECO 11 Electric 

Editor’s Rating: 4.2

portable electric water heater

Editor’s Note:

  • Space Saver
  • Limited warranty
  • Easily replaceable elements
  • Easy installation
  • High energy efficient
  • Endless hot water
  • Perfect for indoor use

This water heater is an ideal one for indoor use; the compact shape enables you to hang it either on the wall of a bathroom or near water sink; It meets your needs on small apartment use or for some point of use applications.

Small shape as it is, it still supports two bathrooms use at the same time, but only in warm regions, of course. There is no need to waste much water and money waiting for hot water; it takes only around 10 seconds.

Try switch the button when you need to adjust the water temperature. Through the LED control panel, you can read actual water temperature and adjust it in 1-degree increment.

Thanks to self-modulating technology, which is the most advanced skills in the heater’s market now, ECO 11 boosts its energy efficiency to be 98%. It adjusts needed energy based on your routine water use, to ensure less energy is wasted.

The 10 Top Portable Electric Water Heaters of 2019

Best Types
#1. Bosch Electric Tankless Water Heater
#2. Dltsli 240 V 3 Power Levels Instant Electric Heater
#3. Thermoflow UT10 2.6-Gallons Heaters
#4. ECOTOUCH Remote Control Digital Display Heaters
#5. Camp Chef HWD5 Heaters
#6. Bosch Electric Tankless Water Heater
#7. Ecosmart POU 3.5/6 Tankless Water Heater
#8. Thermoflow for Wash Basins & Utility Sinks
#9. American Standard CE12-AS 12 Gallon
#10. Happybuy 11.6L Electric Tankless Water Heater

Best Portable Electric Water Heater Reviews

#1. Mini Portable Tank Water HeaterBosch Electric 

Editor’s Rating: 4.3

small electric water heater

Editor’s Note:

  • Short waiting time
  • Ideal for point of use
  • No cold water sandwiching
  • Minimum loss of energy
  • Sleek and simple design

In terms of kitchen faucet use, you might need a point of use heater like this one. It is a mini tank heater, features a 2.5 and 4-gallon tank with a simple 120 Volt plug-in connection. You can have it shelf, wall, or floor mounted based on actual needs.

To eliminate long waiting time, you need only install it near your sink. There is thick CFC-free foam insulation installed inside the heater, so stop worrying about the use time. Glass lined tank also ensures high durability.

What impresses most is how easy its installation can be. Once you master the basic knowledge of electricity, you can install it within 30 minutes.

The unit weighs light, and of course, occupies smaller space than you can imagine. Overall, it is a primary point of use portable electric water heater.

#2. Best Outdoor UseDltsli 240 V 3 Power Levels Instant Electric Hot Tankless Water Heater

Editor’s Rating: 4.3

40 gallon electric water heater

Editor’s Note:

  • Solid construction
  • Constant hot water supply
  • More power options available
  • Supply hot water for 2 full bathrooms
  • The reasonable flow of warm water
  • Great price for products
  • Nice looking

This unit is a portable electric hot tankless water heater that comes with a showerhead. It is tiny, so much that you can use it as a point of use heater under water sink.

There are three power levels that you can choose, varies in 3.5KW, 4.5KW, and also 5.5KW. The exact water temperature shows on the LCD screen, by touching buttons, you can rise and lower down the exact water temperature with 1-degree increment.

It needs no much water pressure to start up. What features most is safety protection, it has the anti-dry function, water leakage, and earth leakage prevention.

Unlike traditional water heaters, it enables multiple installations, you can install it vertically, horizontally or in any angles you need in the bathroom or kitchen.

#3. Under Sink Tank Water HeaterThermoflow UT10 2.6-Gallons

Editor’s Rating: 4.4

electric on demand water heater

Editor’s Note:

  • Less waiting time for hot water
  • Easy installation
  • Simple and sleek shape design
  • Smooth temperature control

This is a mini tank water heater, the water capacity of it reaches around 2.6 gallons, able to meet two sinks use at the same time. An ideal one for point of use, but not suitable for shower use.

Concerns considerably on safety issues, it is equipped with an active protection circuit for safe installation; auto shutoff system to control the unit on and off when the temperature reaches a high or low setting.

The stainless steel tank and heating elements keep it super durable. You can mount it on the wall or under the sink because of its small shape.

#4. On Demand Hot Water Heater ECOTOUCH Remote Control Digital Display 

Editor’s Rating: 4.1

electric instant water heater

Editor’s Note:

  • Ideal for point of use
  • Safe and durable
  • Convenient to install and use
  • Sleek design
  • Healthy water quality
  • Leakage protection

This tankless water heater is applied with 5.5KW heating system, able to offer you constant water flow in both shower and kitchen faucet use. The maximum water temperature reaches around 116℉. Wait for no more than 15 seconds; hot water comes out.

Designed with compact and small shape, it is an ideal one for kitchen or bathroom sink use. The energy efficiency of it is 98%, higher than most of the heaters on the market; All of which thanks to its smart self-adjustment system — auto adjust power input according to flow rate and temperature setting.

Approved by ETL and qualifies for UL, you will see its excellent performance even for years of use.

#5. Travel Portable Heating SystemCamp Chef HWD5 

Editor’s Rating: 4.2

best electric tankless water heater

Editor’s Note:

  • Adjustable water temperature
  • 2D batteries for ignition
  • Perfect for outdoor use
  • Easy to use
  • 1.5 gallons per minute on demand hot water
  • 1-year warranty

If you are out for traveling, then you will need this tankless water heater, simply attach it to a hose, and then you can get a relaxing shower. It is capable of producing 1.5 gallons of hot water per minute, which supports a warm shower easily.

The shower head comes with the machine has 4 settings, including off, mist, shower, and jet. By igniting soon when you need hot water, it helps save much energy and power.

In terms of portability, you will find it super convenient to use, whether to use as self-standing or to hang it with brackets. When out of use of the heater, fold the handle down, and you can store it easily. The regulator hose it comes with can also be used for a bulk propane tank.

#6. Mini Portable Tankless HeaterBosch Electric 

Editor’s Rating: 4.0

electric hot water boiler

Editor’s Note:

  • Energy saving
  • Perfect for small space use
  • Multiple power available
  • Outdoor RVs or boats use available
  • Short waiting time for hot water
  • Lightweight

This is another small point of use tankless water heater, able to be used for kitchen sink or under the bathroom sink for washing machines. The compact shape also enables you to mount it on the wall either vertically or horizontally.

It reduces the standby loss to a maximum of 98%, which means your electricity bill is accordingly reduced.

Waiting for hot water located from the heater to sink is a waste of water, this unit shortens the waiting time largely to around 5 seconds; thus, less cold water is wasted in the whole process. Based on your needs, there is four power you can choose, ranging from 3.4kw to 12kw.

#7. Point of Use Heater Ecosmart POU 3.5/6 

Editor’s Rating: 3.8

instant hot water heater electric

Editor’s Note:

  • Consistent hot water supply
  • Digital display
  • Durable and long lasting
  • Compact shape
  • Free installation
  • Ideal for point of use

This point of use portable heater has two options on power rate and flow rate, choosing 3.5 type when you need less heating capacity; while for a larger sink, you might as well need a 6 type.

Being a small compact heater, it is still a digital display available. Water temperature and error signs show on the screen, which makes check the exact temperature in use more convenient. It features flow controlled also; the water temperature adjusts according to the demanded flow rate.

#8. Indoor Portable Water HeaterThermoflow for Wash Basins & Utility Sinks

Editor’s Rating: 4.0

portable electric hot water heater

Editor’s Note:

  • Compact shape
  • Ideal for point of use
  • Use as a booster heater or a primary heater
  • Space saving
  • Never run out of hot water

This one adopts Germany advanced technology, provides you with fast and consistent hot water in need. It minimizes the loss of cold water and reduces the bills paid on water and electricity.

Because of the bare wire heating system that free of maintenance, it supplies endless hot water whenever you need. Install it under your hand sink or kitchen sink; then you can use hot water in around 5 seconds.

#9. Point of Use Tank HeaterAmerican Standard CE12-AS 12 Gallon

Editor’s Rating: 4.0

portable tankless water heater

Editor’s Note:

  • Easy to install
  • Excellent design
  • Rapid hot water recovery
  • High quality
  • Thoughtful after sale service
  • Ideal for point of use

Still fond of tank water heater for point of use? This unit will on your bet. Designed with heavy gauge steel tank, you will find it super durable and long lasting. The inner Dura glass lined tank also prevents it from corrosion.

You can install it in cabinets, counters and other places for point of use; it shortens the waiting time for hot water significantly. You can use it either for residential or commercial use; each comes with a limited 6 year and 3-year warranty accordingly.

Though designed with the tank, it is compact and small. If you are at a loss of finding a suitable size for a decent price, I will highly recommend this one!

#10. Portable Heater for Shower UseHappybuy 11.6L Electric 

Editor’s Rating: 3.6

portable propane water heater

Editor’s Note:

  • Sensitive LED display
  • Large LED touch screen
  • Low consumption
  • High energy efficient
  • Well worth the price
  • Suitable size for small apartment use

Compared with other portable tankless water heaters, this one is quite powerful, with 11.6L continuously hot water supply per minute. It gives you comfortable and relaxing bathing time whenever for residential use or camper use.

Built-in micro-computer system enables you to adjust the water temperature by touching the buttons. The safety issue of it is also worth mentioning; The over-heating protection, leakage prevention valve, as well as sensor fault protection, protect the machine all around.

For shower use, you can install it in the bathroom directly. If for hand washing, you may as place it under the faucet near the sink.

Buying Guides on Portable Electric Heater

Being aware of the essential choosing tips is the key to finding an ideal water heater. Here are some factors you need to consider in purchasing.

1. Portability makes outdoor use easier.

In terms of portable electric hot water heater, of course, the portability is the primary concern. It should be small in size and portable in hand. Some of which are installed with handle, available for both wall mounted outdoor or self-standing.

2. Size the capacity and water flow You need.

No matter for a tankless water heater or the one with a tank, you need first size the amount of water you need per day. It determines how large capacity you should get.

3. Safety is the key.

No matter for the residential heaters or portable types, you will never want one with safety issues in using. The hot water boiler with an auto shutoff system is safer, for it shuts off when water heats up to a maximum temperature range. There are also overflow protection to prevent it from burning.

4. Temperature rise, control, and range are all vital considerations.

Water temperature varies according to the location and seasons. In somewhere warm, the temperature of water stays the same as what ads say; In cold regions, I would highly recommend you to get a stronger model, for the temperature falls off 1-2 degree or even more (based on your locations) in cold areas.

5. Spare enough space for a heater.

Before purchasing one, you need to estimate how much space you intend to occupy. Is there enough room for a large size type? If not, you might as well choose a portable one. They are designed small and compact, perfect for small apartment use.

6. Endless hot water supply is a must.

You do not want to be in an embarrassing situation when water runs out in the shower, especially when you are traveling outdoors. A heater with endless hot water supply offers relaxing bathing time.

7. Leakage is a trouble thing.

Make sure your heaters are in excellent quality, with no leak, no breaks and of course, no bursts. And reading experts reviews can help you choose what the best is!

Benefits of Portable Electric Water Heater

1. Compact and lightweight

Small size with simple operation design makes it an ideal one for outdoor travel use. The one with handle doubles the installation method; you can either use it self-standing or hang it somewhere suitable.

2. Easy to install and use

There aren’t many functions provided aside from providing continuous hot water for portable heaters; A simple on and off button meet all your outdoor needs. Plus, they are quite easy to install.

3. Energy efficiency

For most portable heaters, especially electric heaters, their energy efficiencies reach up to 98%, which means few energies is wasted in the process. Besides, it produces less carbon dioxide compared with the gas type.

4. Save bills on water

The higher the energy efficiency it is, the more it saved on electricity and water bills.

5. Space Saver

It is never wrong to get a portable type for a small apartment. Compact in shape, it has massive hot water to supply for showering.

6. Comes with easy attachment system

Portable electric water heaters frequently come with a hose; Some also come with a battery, in replace of electricity outdoor, and there is no need for electrical hook-ups.


Best Types
Best Tank Type 1. Bosch Electric

2. American Standard CE12-AS 12 Gallon

Best Outdoor Type Camp Chef HWD5
Best Indoor Type 1. EcoSmart ECO 11 Electric 

2. ECOTOUCH Remote Control Digital Display 

Best Type for Shower 1. Dltsli 240 V 3 Power

2. Happybuy 11.6L Electric 

Best Point of Use 1. Thermoflow UT10 2.6-Gallons

2. Bosch Electric 

3. Ecosmart POU 3.5/6 

4. Thermoflow for Wash Basins & Utility Sinks