Top 10 Best Portable Electric Water Heaters – Buyer’s Guide

Having hot water in the home is essential to have for bathing and cleaning. For this reason, you have water-heating tanks to warm up the water but can occupy a lot of space. The portable electric water heater helps save space in small apartments, RVs, and homes.

This tankless water heater makes your life simpler and presents you with convenience when using it. You can place it in the bathroom or kitchen to get warm water on demand. The water system is popular as it offers you performance and you get instant hot water as well.

To help you find a suitable model to use in your place, we compiled ten of the top portable electric water heaters to use anywhere from your business to home. What’s more, we have included a FAQ section to answer some of your burning questions as well.

List of Top-Rated Portable Electric Water Heaters:

Best Portable Electric Water Heater Reviews

10. EcoSmart ECO 11 Electric Tankless Water Heater

The tankless water heater is a life-enhancing system to use in businesses and homes. You get an endless supply of hot water with the space-saving design and reduce your overall energy with water costs—the units made according to the North American safety standards to provide you with reliable water heating.

You can use it in the home, but can also use it commercially or place it in your recreational vehicle. Installing the unit is a breeze and comes with supportive customer service. On the other hand, when investing in this model, EcoSmart donates a % to the Rheem Heart of Comfort Program.

Portable Electric Water Heater at a glance:

  • Tankless design and takes up little space
  • Lifetime Warranty
  • Energy efficient
  • Has 1.5 gallons per minute flow

What we like:

  • Compact
  • Fitted with digital temperature control
  • Easy to repair

What we do not like:

  • Does need professional installation

9. Camplux ME25 Mini Tank Electric Water Heater

The mini-water heater can store up to 2.5 gallons of water under the sink in the kitchen or in the bathroom. There is no need to wait for the water to warm up and helps reduce heat loss. The installation is simple and taps into the water line directly at your sink.

With the glass-lined tanks, you get impeccable insulation with durability and have a fast recovery rate without the need to wait. You get an external dial to control the temperature and CSA listed with a safety pressure relief valve. On the other hand, it comes with a long power cord making it easy to reach a power outlet.

Portable Electric Water Heater at a glance:

  • Built-in insulation to reduce heat loss
  • Holds up to 2.5-gallon point of use
  • Fits under a sink for hot water
  • Thermostat controlled with overheating
  • Fitted with a long cord and plugs into an outlet for independent installation
  • Can install in-line with a hot water source
  • Can mount it on a shelf, floor, or wall

What we like:

  • Easy to maintain
  • Adjustable temperature
  • Easy to install with the plug-in design

What we do not like:

  • Need professional installation for in-line assembly not to void the warranty

8. InSinkErator H-HOT100SN-SS Instant Hot Water Dispenser System

With the electric water heater, you get instant hot water and have a compact design to fit into any space. The unit has a push-button activation faucet with a 2.3-gallon stainless steel tank. The temperature adjusts easily with the control to get boiling water.

The design is stylish and pairs with any faucets in the home for a traditional look. Installing it is accessible by making a single hole in the countertop and placing it under the sink. On the other hand, it works well in recreational vehicles where you need a supply of warm water.

Portable Electric Water Heater at a glance:

  • Push-button activated with temperature control
  • Side faucet with 2.3-gallon stainless steel tank
  • Stylish to pair with other faucets in the home
  • Can place it at the edge of your kitchen sink
  • Easy to install in the countertop

What we like:

  • Adjustable temperature
  • Offers versatility to use anywhere
  • Need no skills with the installation

What we do not like:

  • A bit difficult to switch on

7. Bosch Electric Mini Tank Water Heater Tronic

The Bosh water heaters were built for life and available in three different compacts 2.5, 4, and 7-gallon tanks. You can wall hang it with the brackets included or placed standing on the floor. You can fit it under a sink or in a cabinet if you have the space available.

When installed, it taps into the cold water line to provide you with instant hot water on demand. The unit comes with temperature control and a pressure relief valve for safety. The appliance works with a 120 Vac plug-in connection and has a safe CFC foam insulation with a glass-linked tank.

Portable Electric Water Heater at a glance:

  • Available in three different water tank sizes
  • Easy to maintain and has a premium glass-lined construction
  • Offers independent installation with the plug or in-line with the hot water source
  • Fast recovery rate to supply hot water to two sinks
  • Mounts easy on a shelf, wall, or the floor

What we like:

  • Simple design with high output
  • Endless water supply each time
  • Well insulated

What we do not like:

  • You do get a warranty but need to pay the shipping and re-installation if using a plumber

6. Stiebel Eltron Tankless Water Heater

With the portable electric water heater, you get continuous flow with the advanced technology in the unit. The unit maintains water temperature automatically and reduces the flow if the demand exceeds the capacity. The space-saving design is sleek and needs no venting.

The tankless water heater works with an electronic flow sensor to switch the heating system with a noise-free design and digital temperature display with memory buttons. You get a warranty on leakage for seven years with three years on the parts.

Portable Electric Water Heater at a glance:

  • Offers continuous flow with automated water temperature
  • Designed with auto-modulation to measure water flow electronically
  • Has a savings monitor with easy operation
  • Digital temperature display with preset memory buttons
  • Works with a 150A electric service
  • Seven-year warranty on leakage and three years on the parts

What we like:

  • Portable design to use anywhere
  • Excellent warranty
  • Worth every cent

What we do not like:

  • Best to get a plumber and electrician to install the unit

5. Thermoflow UT10 Electric Water Heater

The electric water heater has a 2.6-gallon capacity to provide you with hot water on demand. The construction is of stainless steel and durable to place anywhere in the home. You get a thermostat function to use in a low to a high setting as well.

The device is energy efficient and comes with impeccable user safety for use and installation. The insulation is exceptional, with the EPS foam providing you with a fast recovery time and eliminating waits. Furthermore, it comes with overheat protection and auto cut-off if no water comes out.

On the other hand, it has an IPX24 waterproof rating with a 2.6-foot plug-in cord.

Portable Electric Water Heater at a glance:

  • Capacity of 2.6-gallons
  • Made with stainless steel tank
  • Upgraded relief valve
  • Automatically stops heating or reheating
  • Insulated with EPS foam
  • Over-heat and auto cut-off protection

What we like:

  • Durable design
  • Guaranteed for safety
  • Energy-efficient design

What we do not like:

  • Odd control knob

4. Rinkmo Electric Tankless Water Heater

Enjoy hot water on demand with the electric water heater with a portable design. You can use it in the whole house connected to the inner water and electricity lines. Another fantastic thing is it saves you high costs on electricity and the water bill.

The unit adjusts the temperature automatically according to the flow rate in real-time with the temp/flow sensors. No sudden changes leaving you gasping for air when showering, and the size is compact to save space. Installing it is easy and has a button that sets the temperature between F° and C°.

Portable Electric Water Heater at a glance:

  • ETL approved and to run up to three faucets and two showers
  • Auto protection when reaching high temp with auto cut-off
  • Easy to read digital display
  • No mineral buildup or replacing heater coils

What we like:

  • Small and compact
  • Durable build
  • Quality thermostat

What we do not like:

  • Annoying sound when operating

3. Rheem RTEX-13 Residential Tankless Water Heater

The thermostatic control on the portable electric water heater is digitalized and adjustable. You see a LED light indicating the temperature and made with durable copper/brass parts. You get a steady supply of hot water with an energy-efficient design.

On the other hand, it comes with self-modulating power regulation, and you can mount it to a wall or place it on a shelf. You get a three-foot power cord with an adapter included. The electric usage is low and comes with external buttons to regulate the temperature.

Portable Electric Water Heater at a glance:

  • Adjustable digital thermostat with LED
  • Two copper heating elements
  • Self-modulating power control
  • Simple installation to water line and plugs into a power outlet

What we like:

  • The digital temp control works flawlessly
  • Affordable price
  • Compact design
  • Smooth installation

What we do not like:

  • Leakage taking place with durability concerns

2. Atmor Electric Tankless Water Heater

Enjoy an uncomplicated stream of hot water using the electric water heater from Atmor. The system has a self-modulating design to control the water flow and regulates the amount of power used. The digital unit displays the temperature and adjusts accordingly to your needs.

The constructions compact with a vent-free design and IP54 water rated, making it safe and reliable to use. The structure is stainless steel and corrosion-resistant and great to use in a garage or home. You need to set up with three by 30a single-phase DP breakers and heats up incoming water.

Portable Electric Water Heater at a glance:

  • Stainless steel interior and corrosion resistant
  • Fitted with digital temperature control
  • Heats up incoming water
  • Self-modulating design

What we like:

  • Heats water fast
  • Rapid installation
  • Durable design

What we do not like:

  • Expensive

1. ECOTOUCH Tankless Water Heater Electric

With the portable electric water heater, you get instant hot water with every use. There is no need to wait for it to preheat. Furthermore, it comes with a smart self-adjusting system to adjust the power to get an ideal temperature. The units are convenient to use with the digital display and touch control panel to set the temperature.

You even get a remote control when selecting the black model in the range. Moreover, it comes with multiple protections as the water and electricity lines are made to work separately. On the other hand, it has a compact design that looks the same as an oatmeal box.

Portable Electric Water Heater at a glance:

  • Made with a 5.5KW heating system
  • Self-adjustment temperature control
  • Digital display with touch control panel
  • The black model in the range comes with a remote control
  • ETL and UL Certified

What we like:

  • Installs easily
  • Affordable price
  • Durable design

What we do not like:

  • You must pick the right size to suit your water needs

FAQs – Frequently Asked Questions About Portable Electric Water Heater:

Now that you have looked at some of the best portable electric water heaters, you may wonder if it is worth buying or what the average costs are to use it? Here, you can find answers to all your burning questions.

Is it worth installing a portable electric water heater?

Yes, you can save loads of money on your water and electric bills. When your product has an energy star rating, you can save from $75 to $100.

How big must the tankless water heater be?

First, check the temp rise of your incoming water and should be between 41 – 105.5 degrees. On the other hand, it also helps to see the limit and heat up 5.1 gallons of water using the temperature. If possible, you need a 5.3-gallon water tank model to generate up to 61-degree temperature rise to use with more than one faucet.

Will the water heater still work if the power goes out?

If electric, it will not work, but you should not have a problem if you have a gas model.

How long does an electric water heater last?

The lifespan can range from 15 to 20 years, and if you get replaceable parts, it can last longer.

Are there any downsides to using an electric water heater?

The biggest concern is the price. While they do come with long-term use and functions at a lower cost, the pay-out after buying it is high. The reason is that most of the time, you need to use it with the waterline. If you are not DIY inclined, it can cost you to get in as a plumber and electrician.

What are the selection criteria when I choose a water heater?

First, decide on the fuel type and the cost of each from electric to gas. Secondly, make sure to check the size needed and how many faucets you want to supply with hot water. Thirdly, see how energy efficient it is to use if you’re going to save costs on the bills.

Final Thoughts

You can find different portable electric water heaters to use in your business or home on our list. The great thing is that it fits in anywhere without taking up much space with the compact design.

Furthermore, you can use it in your recreational vehicle as well. We hope that the frequently asked questions help to answer what you want to know. Moreover, we hope you find a suitable model to help save you money on the bills and provide you with instant hot water on demand.

List of Best Selling Portable Electric Water Heaters:

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