Best Water Heater


A product that everyone looks for during winter or people living in colder areas wants almost every month is a water heater. Yes, it might look like a piece of cake to purchase any water heater. But do you know buying the wrong heating unit can be too troublesome? It is not that simple.

Water heaters should be capable enough to produce a sufficient amount of hot water for the complete home. No one of you should wait for the water to heat or run out with hot water. However, to solve this problem, you must have an energy-efficient, instant, and suitable size water heater at your home. Stop worrying, have a look below and choose one model for yourself.

Top 10 Best Water Heater By 10 Consumers

Whether it be size or efficiency, we are discussing all types of the water heater. All you need to do is to read and select one according to your preferences. 

1. Rinnai V65IN Tankless Water Heater



  • Generous residential factory warranty – labor (12 months), a heat exchanger (20 months), parts (60 months).
  • You can control it with your smartphones.
  • SCAQMD approved.
  • No electricity required – highly efficient product.


  • It produces some noise because of the exhaust vent.

Firstly, the tankless water heater will run by using natural gas, which is among the greenest and cleanest heating water methods. Moreover, you will come across various versions of this water heater. It includes a few models that use propane as their fuel. Thus, if your area lacks natural gas, then you can go for these propane models. 

Secondly, the heating system supports the HE concept. In simple words, the high-efficiency water heater helps save your expense, as it wastes a minimal amount of energy. Also, it is an SCAQMD-approved product that promotes the clean and green environment motive. Furthermore, this tankless heater has different sizes. Therefore, choose the size according to your family requirements.

Thirdly, and most importantly, the water heater can work for three fixtures at a time, depending upon the groundwater temperature of your area. Installing this heater needs necessary electrical skills and plumbing knowledge. There is no need to take professional help. The heater supports the Rinnai application, which means you can control, observe the status, and program the heater remotely with a smartphone.

2. Camplux 10L Propane Gas Tankless Water Heater



  • Impressive thermal efficiency – saves energy.
  • Contains all necessary adapters, gas regulator, and the showerhead.
  • It will work without the main supply of electricity as well.
  • CSA certification, portable, easy to transport, and user-friendly control settings.


  • The fittings of the shower could be more robust.

If you want to enjoy a luxurious hot shower outdoors, then this Camplux portable tankless water heater is the right choice for you. This 2.64 GPM and 10-liter model is a highly demanded product. Two batteries (D-cell) power up the ignition. It will hook up or operate with the help of a propane gas cylinder.

This feature makes it an optimum selection for camping or off-grid areas. Moreover, to enjoy the best results, the ideal pressure of water is from 2.8psi to 110psi. The package consists of a showerhead and all required adapters, which means there is no need to invest in these parts. You can position it anywhere due to its lightweight and compact design.

The water heater contains an option of full or eco modes, which, in turn, will save energy during warm weather. Furthermore, the heater comprises various safety measures, such as automatic turn-off spec and flame failure unit. The maximum output power of the system is 68,000 BTU.

3. Bosch Electric Mini-Tank Water Heater



  • Stylish design and versatile water heater.
  • 98% of thermal efficiency – highly efficient.
  • Compact size, easy to install, helpful for multiple purposes.


  • It consumes electricity while being not in use.

The versatile Bosch electric mini-tank heater tends to provide three possible functions. Astonished, isn’t it? You can use it as a standalone water heater for any single sink. Secondly, it can work as a heating supplement to your existing heater. It also works as a buffer system for the tankless heater. Whether it be any application for which you are using this water heater, the unit will work in a similar pattern.

It will give you immediate hot water to use. The model can supply 7-gallon of water. However, it even available in 2.5gallong or 4gallon size. Also, the compact size of the unit allows the user to install it anywhere he wants. The attractive and sleek design won’t destroy the beauty of the installation location.

Lastly, the highly efficient heater has a temperature range starting from 65°F and ending at 145°F. This heating temperature range is more than enough to fulfill your bathing and washing requirements. It contains thick foam insulation of CFC-free material that aims to maximize energy efficiency.

4. GIRARD 2GWHAM Tankless Water Heater



  • Efficient and quiet brushless motor.
  • The output of 42,000 BTU helps to take long and soothing hot showers.
  • Perfect for RVs – no need to have a trained plumber.


  • The minimum flow rate requirement is 0.9GPM – it won’t work for less than this limit.

The GIRARD water heater is the most suitable tankless heating unit to take at recreational vehicles. It uses a high-end brushless motor that does not create any vibration or irritating noise while running the system. The engine of this sturdily constructed heater is efficient in terms of fuel usage. It operates by consuming 12V power, which means it works at less than 3amp.

You won’t need to hire any plumbing specialist or a gas line expert to install the unit. Therefore, it involves comparatively straightforward installation than many other models. This water heater provides 42,000 BTUs output, which offers optimum performance for RVs. So, you can enjoy a long and relaxing shower without any fear of a hot water shortage.

This unit even consists of a microprocessor. The electronic piece helps to keep an eye on the temperature. It also supports monitoring the flow rate of cold water (entering) and hot water (leaving). It will, in turn, give you a stable water flow according to your preferred temperature.

5. EcoSmart ECO 11 Electric Tankless Water Heater



  • Space-saving, compact, easy-to-understand temperature gauge, unlimited supply of hot water.
  • It is easy to replace the elements.
  • Saves at least 50% of the heating costs.


  • The elements might need regular maintenance.
  • Point of use structure can be problematic.
  • You must take professional installation help to use the lifetime warranty.

First of all, the electric tankless water heater is capable of conserving energy and providing endless hot water to the user. The incremental degree digital control is a cherry on the top in this model as it allows to set the of water temperature. This water heater model is useful for apartments and smaller homes.

Secondly, this model can serve up to three or four taps simultaneously. It means you can use it for showering or dishwashing at a time. Also, this heater follows the point of use technique. Thus, you will have to install it on the faucet to get the fastest hot water delivery.

Thirdly, it follows the self-modulating design. In other words, it will detect the temperature and flow of the entering water without putting any additional effort from your side. The sensors present inside depict the temperature after the heater switches on. It starts to correct this issue before the hot water begins to pour from the tap.

6. Tankless Water Heater, GASLAND Outdoors BE158S



  • Energy-efficient and easy to install.
  • Portable, lightweight, and compact water heater.
  • Safety measures, anti-freezing drain plug, responsive customer care.


  • You cannot use it in areas above 3300 feet or windy locations.

The portable water heater is an ideal choice for people willing to use the heating system for outdoor purposes. Due to its compact, lightweight, and easy to carry structure, the user can take this water heater to all of his camping trips. The 15.8pounds heater does not involve a complicated or time-consuming setup. It is quite simple to set the heating unit without seeking any guidance from a professional person.

Furthermore, you don’t need to search for any electrical line to start the heating system. In simple words, the propane gas water heater will need D-cell (two) batteries to turn on the heating process. It does not require any time to preheat, as it will run as long as the gas cylinder is full. The maximum output of the unit is 41,000 BTUs.

It is a sufficient power level for any portable water heater. Moreover, the heating rate of the water is 1.58 GPM. You can adjust the water flow and temperature while taking a relaxing shower. Apart from the flowing rates and portability, the main burner and propane gas heat exchanger minimizes noise level and energy consumption by 11.5%.

7. Stiebel Eltron Tankless Water Heater



  • Noise-free working, compact unit.
  • It incorporates an advanced technology of flow control – maintains a constant temperature.
  • The heater contains memory buttons to remember your desired settings.
  • Provides the readings of saved energy.


  • An expensive heating unit.
  • You might face problems while using it in intensive tasks – better for smaller homes.

Along with using the latest technologies, the water heater will also reduce the electricity bill. It consists of the advanced technique for flow control. Therefore, this patented and unique technology aims to maintain a constant and uniform temperature of the water. It even slightly reduces the water flow if the demand exceeds the heater capacity.

Furthermore, the auto-modulation technology helps to adjust the output power depending upon the requirements of the user. The water heater will use less energy when the need is less, which, in turn, will decrease the utility bills. It features an easy-to-use, clear temperature display (digital).

Another inspiring feature is the additional readout that provides information related to the amount of energy saved during the usage process. It even allows the user to monitor the performance of the heater and water consumption. You can choose pre-determined temperatures with the help of its memory buttons.

8. Eccotemp EM-2.5 Electric Mini-Tank Water Heater



  • Ready to fit (install) – compact unit.
  • Floor and wall-mountable design.
  • Requires inexpensive lines and re-circulating pumps.
  • Less recovery time – 45minutes.
  • Adjustable and easy to use temperature control.


  • The performance is not the same during a severe cold climate.
  • Plastic fittings –durability issues.

The point of use electric mini water heater offers a holding capacity of 2.5 gallons of water. This tank water heater aims to provide on-demand immediate hot water. It has a small, lightweight, and compact design perfect for commercial and residential applications. The unit can supply hot water to two sinks.

You can even install it with your existing water heating system to ensure an instant hot water supply whenever needed. The electric water heater contains easy and accessible temperature controls that offer the least 20minutes of recovery time. This unit can work at 150psi water pressure. Also, the convenient installation helps to mount it on the wall or stand freely.

The heater provides hot water to places that might be arduous to reach. You can use this heater under your sinks in the kitchen, utility sink, offices, and laundry rooms. It consists of an ETL certification. The temperature range for this unit is between 50°F to 140°F. Furthermore, the packaging includes a mounting bracket, temp relief valve, and pressure valve.

9. Ecosmart ECO 18 Electric Tankless Water Heater



  • It can save 99.8% of energy (highly efficient).
  • Digital display, adjustable temperature, and intuitive controls.
  • Reduces utility bills by almost 60%.
  • Offers complete mind relaxation with the lifetime residential warranty.


  • Works better for smaller homes – not suitable with several fixtures.

This tankless water heating unit is a perfect choice for people who wishes to get hot water while bathing or washing and does not wants an increase in their electricity bills. The system features a few advanced and latest self-regulating techniques (technology). This method tends to deliver hot water along with consuming the least amount of electricity.

The high energy efficient heater can boost energy efficiency by up to 99.8%. Thus, there will be no wastage of power. Moreover, using the water heater is not at all a difficult task. The intuitive, built-in digital display helps to monitor the temperature. You can even change the temperature unit to centigrade.

It allows us to set the temperature between 80°F – 140°F. The system can provide enough hot water to enable multiple showers simultaneously. However, you cannot use it for several purposes like bathing, dishwashing, or washing clothes together. In simple words, the unit cannot support multiple tasks at a time. But in terms of efficiency, environmentally-friendly, and affordability, this product is the best one.

10. Atmor AT-910-27TP Electric Tankless Water Heater



  • Low maintenance, easy operation, compact design, and space-saving structure.
  • Affordable, efficient, Wall-mounted easy installation, and safe usage.
  • Manufacturer warranty (2yrs) and leakage warranty (7yrs).
  • Digital settings and self-modulating – optimum performance.


  • The heater is not efficient for colder areas – less energy efficiency.
  • It does not include a pressure relief control (valve).

The Atmor water heater includes a straightforward digital panel. Controlling or using the digital board does not require any expertise or knowledge. It allows the user to have 100% control over the water’s temperature pouring from the faucets at home. Now, considering the design of this heater, there is no complexity.

In simple words, the space-saving and flexible design are ideal for small-sized apartments or homes. Unlike gas heaters, this unit does not need any venting system. The compact and sleek design provides ultimate flexibility. Due to its tankless structure, you can fix this heater anywhere inside the garage or home.

The safe to install and use electric water heater contains a certification by IP54. This certification proves the internal parts are dry and safe. The heating unit features beneficial self-modulating technology. It will automatically start after sensing the flow and switch off when the water movement stops. Thus, it offers less wastage of energy and improved efficiency.

Buyer’s Guide – What to Consider When Buying a Water Heater

Now, you must be finalizing your decision about buying a water heater. But before you move on with your final step, we would like to discuss some of the most vital tips and features you should keep in mind. In other words, this buying guide will further ease your decision-making process. Do not forget to check these features, whether it be any brand.

  • Size and capacity

The first essential thing to consider is what size and capacity of water heater do you need for yourself or the entire family. Without deciding about the size, you won’t be able to make the correct decision. A small-sized water heater won’t be able to fulfill your large family requirements. However, an over-sized heater might be expensive and less energy efficient. Thus, act smart and calculate for what purposes do you need the water heater.

  • Maintenance and space requirement

If, by mistake, you have less space and you purchase a large-sized water heater, it will only be a money wastage, as you won’t be able to accommodate it. Therefore, it can be a wiser move to measure the available space and then look for a water heater. Secondly, do not go for water heaters that require a lot of maintenance. It will be hectic and expensive.

  • Type of water heater

Most importantly, you need to make sure what type of water heater is applicable or suitable for your residence. Try to look for a water heater that uses the fuel available at your place. Each heater has different properties and features.

According to fuel:

According to size:

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