The 7 Best Small Tankless Water Heater Reviews in 2020

Small tankless water heater is a standalone unit that delivers hot water. You might have seen a tank located at the sides of the houses in your neighborhood. These are conventional water heaters that occupy a lot of space. Tankless water heaters do not require a tank to hold hot water ready to be used. These are called “on-demand” or “instant water heaters” and deliver hot water on demand.

They have a smaller footprint, thus do not occupy much space in the house. These are energy efficient and save you money on energy bills.

Top 7 Best Small Tankless Water Heaters

 

IMAGEPRODUCTDimensionsWeight
Battery-Powered
Camplux 5L 1.32 GPM11.4 x 4.3 x 14.8 inches14.11 lbCHECK ON AMAZON
Electric
Rheem RTEX-13
Rheem RTEX-13 240V4 x 9 x 13 inches4 lbCHECK ON AMAZON
Electric
EcoSmart 11
EcoSmart 113.8 x 8 x 11.5 inches6.5 lbCHECK ON AMAZON
Electric
Stiebel Eltron Tempra Plus 24 kW
Stiebel Eltron Tempra Plus 24 kW21.7 x 20.1 x 9.6 inches16.1 lbCHECK ON AMAZON
Electric
Bosch Tronic 2.5
Bosch Tronic 2.5-Gallon13.8 x 10.8 x 13.8 inches15.5 lbCHECK ON AMAZON
Electric
Atmor 27kW240V
Atmor 27kW/240V17.4 x 5.2 x 13.4 inches17 lbCHECK ON AMAZON
LPG
Eccotemp-FVI-12
Eccotemp FVI-12 Liquid24.8 x 15.2 x 6 inches33 lbCHECK ON AMAZON

Best Small Tankless Water Heaters Reviews

Tankless water heaters are perfect for those who hate winters as they have to take a bath with cold water. Here are the Small Tankless Water Heater reviews to help you find the best one to get instant hot water when needed:

1: Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater

You are outside camping somewhere does not mean that you need to use cold water in the morning. Camplux 5L 1.32 gallons per minute Outdoor water heater is becoming increasingly popular nowadays for its extraordinary capability as an advanced way of heating system. It is a portable water heater that can be used both indoor and outdoor.

It is well-equipped and modernized equipment that never lets you take a cold outdoor shower. The maximum temperature raise is 114.8oF, and the minimum temperature raise is 46.4of. The maximum flow rate of 1.32 gallons per minute is enough to take outdoor showers.  Camplux 5L 1.32 gallons per minute Outdoor Propane is the most recommended and best-selling water heater out there in 2020. To get the most suitable temperature, there are two buttons on the unit.

Camplux 5L 1.32 GPM

Pros:

  • Compact size so does not occupy much space
  • Easy and quick installation
  • Workable with volt water supply pumps
  • Can run with the lowest water pressure of the house
  • Provides fast water with impressive GPM rate

Cons:

  • Pricing may look high as compared to other similar categories of tankless water heaters.
  • No Draining system
  • Difficult to adjust exact temperature
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2: Rheem RTEX-13 240V Heating Chamber Residential Tankless Water Heater:

Looking for a unit that could provide hot water uninterruptedly, then Rheem RTEX-132 240V is the right choice. It has a small and compact shape with great features.

It is suitable for use in small homes and apartments. The unit has an external adjustable digital thermostat control with LED for water temperature settings.  It is an energy-efficient unit with an affordable and unbeatable price.

Digital temperature shows the current water temperature, so you don’t worry about water being too cold or too hot. It is trendy in looks also.

Rheem RTEX-13
Rheem RTEX-13

Pros

  • Simple installation
  • On-demand hot water
  • Compact and lightweight
  • Comes with great energy efficiency
  • Adjustable digital thermostatic control
  • One of the inexpensive tankless water heaters

Cons:

  • Not for households more than four members
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3: EcoSmart 11 Tankless Water Heater:

Nothing is more annoying than a cold shower on a winter morning. Buying a small tankless water heater is a great way to save money on energy bills. It is compact and small in size, which makes it a perfect unit to install in tiny houses. It is an electric tankless water heater that does not require a ventilation system.

With the self-modulating technology, it can save up to 60% on the user’s monthly energy costs. The components of the unit are made either from stainless steel or copper for durability. It comes with digital temperature control that allows increasing the hot water temperature in a one-degree increment. It is a perfect choice for moderate climates with an incoming water temperature of 67oF.

EcoSmart 11 is not suitable for large homes and cold climate. The unit comes with an automatic resettable thermostat. It is easy to install and use the unit, but if you install it by yourself, you wouldn’t be eligible for the warranty. It is a perfect point of use water heating solutions to get hot water in the cold mornings.

EcoSmart 11

Pros:

  • Can be used for multiple or single applications depending on climate
  • Self-modulating technology enables it to control its own energy output.
  • Designed for small homes or apartments
  • Heats two gallons of water per minute
  • Simple installation and use
  • Digital temperature control
  • Point-of-use solution
  • Automatically resettable thermostat

Cons:

  • Doesn’t work well in cold climates
  • You need to contact a professional plumber to install it in order to get a warranty
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4: Stiebel Eltron Tempra Plus 24kW Tankless Water Heater:

The use of a conventional water heater is declining with the passage of time, and tankless water heaters are becoming more popular. Stiebel Eltron Tempra plus 24 kW is an energy-efficient unit that saves up to 99% on energy bills. It is a powerful heating unit due to its full power modulation feature. Also, it has a digital control to adjust the water temperature. To automatically regulate water pressure, it has a built-in advanced flow control system. 

The maximum flow rate of the unit is 5 gallons per minute. Since it is compact in size, it is easy to install. A detailed manual comes with the unit containing the instructions regarding use and installation. It is made from heavy-duty materials, so it lasts longer than expected. It is best for two bathrooms usageand you can use it as a commercial tankless water heater as well.

Stiebel Eltron Tempra Plus 24 kW

Pros:

  • Self-modulating technology
  • Energy-efficient
  • Compact design`
  • Precise temperature control
  • Heats water really fast

Cons:

  • The unit is a little bit expensive compared to other models.
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5: Bosch Tronic 2.5-Gallon Electric Mini-Tank Water Heater

You may be wondering why a tank water heater is included in our Best Small Tankless Water Heater reviews 2020. We have included it in our list due to its features that include ease of installation, capacity, and durability. It is a point-of-use electric mini-tank water heater perfect for those who cannot bear temperature fluctuation while in the application.

It is easy to install the unit, and you can hang it anywhere as per your choice. The flow rate of the unit is 2.5 gallons per minute. It uses less energy and produces more hot water. A thick CFC free foam insulation and the glass-lined tank make it a durable machine.

Since it heats water fast, you do not need to wait long for hot water while taking a shower. Trouble-free plug-in connections make it a safe unit.

Bosch Tronic 2.5

Pros:

  • it has the 2.5-gallon production capacity
  • 120-volt outlet required for independent installation
  • Compact shape
  • Smallest in the Tronic 3000 T series
  • Heats the water within 10 minutes
  • Can be fitted easily under a sink
  • One year warranty on the parts

Cons:

  • Leaks water under it from the pressure valve
  • Careful maintenance required
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6: Atmor 27kW/240V Electric Tankless Water Heater

You need a tankless hot water heater that could provide an unlimited supply of hot water without waiting when you need it. According to the manufacturer, it is an energy-efficient water heater that saves up to 50% on your electric bills.

The unit features the advanced ThermoPro self-modulating system to regulate the amount of energy needed to heat

the water.  No matter you are going traveling or camping, it is light in weight so you can carry it anywhere you want. The temperature range of Atmor 27KW/240V is from 90 to 135oF. The unit features a digital control that lets the user set the temperature.

Atmor 27kW240V

Pros:

  • Saves up to 50% on energy bills
  • Lightweight
  • Automatic detection system
  • Simple and easy installation
  • Self-modulation technology
  • Stainless steel interior makes it a durable unit

Cons:

  • Installing a pressure relief unit is required
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7: Eccotemp FVI-12 Liquid Propane Tankless Water Heater

If you are looking for a small propane tankless hot water heater that could meet the demands of the whole home, then Eccotemp FVI-12 Liquid is the best choice. But with the flow rate of only 3.6 gallons per minute, it works well for one bathroom use. With the minimum weight of 20 pounds, you can easily hang it on walls.

In addition, the safe electronic ignition system makes it a safe unit for users. Since it is a highly energy-efficient unit, it has a self-modulation system. It means that the machine gets activated only when used.

Eccotemp-FVI-12

Pros:

  • Efficient power ventilation
  • Low noise while working
  • Energy-efficient unit
  • Safe electronic ignition system
  • Optimal capacity

Cons:

  • Limited colors available
  • Difficult to get the exact temperature as per your demands
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Features Of Small Tankless Water Heater:

Features Of Small Tankless Water Heater

Saves money:

As a matter of fact, one of the biggest advantages of a small tankless hot water heater is that it saves you money. A conventional water heater consumes a lot of energy, and you have to wait long in the bathroom to get hot water. And at the end of each month, you end up paying huge amounts as energy bills. On the other hand, tankless water heaters consume less energy and provide hot water instantly.

Small flow rate:

Tankless water heaters are energy-efficient, but they have a low flow rate. These units are the best to use for one or two bathrooms, but for a large home, these water heaters are not suitable. Generally, these units have a flow rate of 2 to 5 gallons per minute, which is not enough for large requirements.

Easy to install:

Most tankless water heating units are easy to install, and you do not need to call a professional plumber. You can install these units by following the instructions written on the manual that comes with the unit. However, not all tankless water heaters are easy to install. Only professionals can install some units.

Perfect for small homes:

Certainly, you do not want to install a tank water heater in your tiny house? Don’t worry! These small tankless water heaters are a perfect choice for those living in the small studios and homes. These are compact in size so you can install them anywhere, even under your sink in the kitchen or bathroom too.

Small Tankless Water Heater Types:

Indeed, you need a continuous supply of hot water; then the best decision is to install a tankless water heater. Three types of these water heating units include a small gas tankless water heater, a small electric water heater, and a small propane tankless water heater.

Small Tankless Water Heater Types

Gas tankless water heater:

Natural gas water heater is the most used type of water heater as it is perfect for large hot water requirements. In fact, small gas tankless water heaters are the most powerful type of heating unit that saves your money on energy bills every month. But venting is required if you are going to install them indoor.

Click HERE to check our best natural gas water heater reviews.

Electric tankless water heaters:

Electric tankless water heater is the most affordable option for homeowners. They are easy to install and use. Just plug in the switch, and it would start working. And the best part of these heating units is that they make less or no noise.

For detailed information, check our small electric tankless water heater reviews.

Propane tankless water heaters:

Don’t fret at all while installing propane tankless water heaters as they are convenient in outdoor use as compared to electric water heaters. For more information about small propane tankless water heaters, check our reviews.

Summary

As a matter of fact, tankless water heaters are compact and energy-efficient. They heat the water only when you need it. Freeze protection technology makes them safe to use and advanced flow control system regulates the water pressure. But before buying a unit, you need to determine your hot water requirements as these units are only suitable for small homes.  To know more about the best small tankless water heaters and get large discounts check them on amazon. Know your hot water demand, install these units, and enjoy hot water in chilling winters. Make sure you purchase a unit with a lifetime warranty.

FAQ’s (People Also Ask)

Q: How reliable tankless water heaters?

Ans: Tankless water heaters are efficient units that provide hot water when the users demand. But inconsistent temperature is the problem with these units. They come with the longer lifespan but initial cost for installing them is a bit high. Choose a company that has good reputation in manufacturing reliable water heating units.

Q: What is the downside of a tankless water heater?

Ans: One of the biggest disadvantage of these heating water units is that they do not supply enough hot water for simultaneous use.

Q: How long does a tankless water heater last?

Ans: Tankless water heaters are efficient units that have the life expectancy of more than 20 years.

Q: What size tankless water heater should i get?

Ans: The users should determine the maximum number of devices you want to run and the flow rate. Then determine the required temperature rise.

Q: Is it worth getting a tankless water heater?

Ans: Tankless water heaters are compact in size and save your money in the long run. But the initial cost is higher than the tank models.

Q: Can i run of hot water while taking a shower?

Ans: One of the amazing features of tankless water heaters is that they provide unlimited supply of hot water unlike tank water heaters. So, you do not run out of hot water in the kitchen or during shower.