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Best Quality Water Heater

Best Quality Water Heater

When it comes to getting a water heater for your home’s water heating needs, quality is one thing you don’t want to compromise on.

You want to get a water heater that continuously supplies you with hot water for a long time, while helping you conserve water and energy.

While there are many water heaters on the market currently, getting one that’s specifically suitable for you could get a little tricky. That’s why I have compiled a list of the best quality water heaters to help guide you in picking the right one for you.

Best Quality Water Heater Reviews

This guide reviews our top picks for the best quality water heaters. Let’s go through the list and see how they stack up!

Bosch Electric 2.5-Gallon Mini-Tank Water Heater

Bosch Electric 2.5-Gallon Mini-Tank Water Heater


If your initial plumbing did not include hot water lines to your sink, you know just how costly it can be to fix that. Sometimes, even after you do, waiting for hot water to get to the sink after switching on the faucet can take a while, depending on the kind of heater you have.

This can lead to wasted water as you wait for the water to turn hot. Fortunately, the Bosch electric heater with a mini tank comes in handy there. With it, you can get an instant supply of hot water at your sink, whenever you need it.

The heater features a 2.5-gallon mini-tank and can be installed under your sink for a convenient supply of hot water due to its small size. The CFC-free foam material helps maintain a high level of energy efficiency at 98%. It’s also super easy to mount. Just plug in the cord into a 120V power outlet and you are good to go.

The attractive design means that you can mount it even on an open space where it is exposed. It won’t clash with the rest of your décor. This heater can simultaneously supply two sinks in case you need more than one hot water outlet.


  • Conveniently delivers hot water to your sink as you need it
  • The energy efficiency rate of 98%
  • Easily blends in with the rest of your décor and therefore can be mounted in a visible location
  • Easy to mount
  • Does not take up a lot of space


  • Not suitable for a large amount of water


Bosch Electric 4-Gallon Mini-Tank Water Heater

Bosch Electric 4-Gallon Mini-Tank Water Heater


If you need the same convenience of instant hot water at the point of use that comes with Bosch electric 2.5-gallon water heater (our first item), but on a larger scale, then you will love the Bosch 4-gallon mini-tank water heater.

It has an energy efficiency rate of 98% which helps conserve energy. It also conveniently delivers hot water to up to two sinks which could be situated far away from the primary water heating system as complementary heater or sinks with no heated water at all.

It measures 13.75×13.75×13.5 inches, small enough to fit into small spaces like just under the sink. It’s easy to mount. You just need to tap into a cold water line and connect the heater to the sink to get hot water.

The fast recovery rate makes waiting for the cold water to clear before hot water starts flowing when you turn on the faucet a thing of the past.

For independent installation, you need a 120V power outlet.

For durability sakes, this heater is made with glass-lined material, which ensures you keep enjoying it for a long time.


  • Can supply up to 2 sinks
  • Fast recovery rates so you don’t have to wait for hot water for long
  • Eliminates bursts of cold water when you turn on the faucet and this helps conserve water.
  • 98% energy efficiency rate
  • Easily blends with your décor which makes it possible to mount on an open space.
  • Easy to mount


  • Not suitable for large scale hot water requirements


Rinnai V65IN Natural Gas Tankless Water Heater

Rinnai V65IN Natural Gas Tankless Water Heater


Gas water heaters are great options when it comes to entire homes’ hot water needs. If you are looking for a heater that will supply your entire home with hot water then Rinnai V65IN tankless water heater is the way to go.

This heater provides you with an unlimited amount of hot water for all your home’s hot water needs so you no longer have to schedule activities requiring hot water around heated water availability.

Coldwater bursts when you turn on a faucet can be wasteful as you have to wait for the hot water to start flowing before use.

With thermaCirc360 technology, this heater recirculates hot water through your pipes to ensure you get hot water soon as you turn on the faucet. This helps conserve the water in your home.

You stand to save up to 40% energy on water heating in your home if you choose this heater. That’s thanks to this heater’s high-efficiency rate.

With the mobile app available for that comes with this heater, you can control the system remotely and put it in vacation mode when it’s not needed.

Its small size in comparison with traditional water heaters means you don’t need a lot of space to install this heater.

The 6.5 gallons per minute flow rate allows for multiple simultaneous output points. It can serve up to 3 bathrooms. This flow rate can vary depending on the temperature of the groundwater.

While conventional heaters have a life expectancy of about 10 years, this heater’s life expectancy is twice that and it is reflected on the 10-year warranty that comes with it.


  • Mobile app for remote control
  • Unlimited supply of hot water
  • Extra durable
  • Impressive warranty
  • Compact design that does not take up much space
  • Hot water on demand technology which eliminates the wasteful bursts of cold water
  • Energy factor of 82%


  • You need a specialist for the installation.


Ariston Andris 2.5 Gallon 120-Volt Electric Water Heater

Ariston Andris 2.5 Gallon 120-Volt Electric Water Heater


Getting water at locations far from the main heating system can take painstakingly long and flushing the cold water from the system out first to get to the heated water can waste a lot of water. This is where this mini-heater comes in.

You can install it in your sink or bathroom to complement the main heating system by eliminating hot water recirculation, or independently at sinks where you don’t need a lot of water.

With this heater, you get hot water instantly at the point of use without having to wait. The small tank has a capacity of 2.5 gallons.

Ariston Andris heater measures 14.25 x14.25×10.75 inches.  The compact design of the heater means that it takes only a small space. It’s easy to install and you can just simply do it yourself.  For the power source, you will need a 120V power outlet to run this heater. It is properly foam insulated to maintain the highest energy efficiency possible.

Life is about taking risks, but buying this heater will not be one of the risks you will take in your life. The 6-year limited warranty makes sure of that.


  • 6-year warranty
  • Compact design which takes up a small space
  • Easy installation that you can do without a plumber’s help
  • Instant hot water when needed
  • Eliminates the need for recirculation in the main hot water supply system


  • Not suitable for large scale hot water requirements


Considerations for the Best Quality Water Heater

When you are looking for the best quality heater, there are important factors you should pay attention to get it right. Let’s look at them.


A warranty helps protect you against defective heaters. It also helps you replace one of the parts when something breaks.

In most cases, a reasonable warranty is an indication that a manufacturer believes in their product, and this inspires confidence in buyers. Normally, the longer the warranty period, the better – but you should also pay attention to the fine print in terms of conditions. A solid warranty shouldn’t be too restrictive.

The volume of hot water you need in your home is an important consideration to keep in mind. This depends on the size of your family. If you have a large family, you will need a large volume of hot water. For this reason, you should pick a water heater that can supply a large volume of hot water at a reasonable cost.


The storage space you have determines the size of the water heater you should get. A small compact design may be ideal for you if you don’t have much space for storage.


Heaters can cost a lot and when you get one, you want to get one that can stand the test of time. Although nothing lasts forever, a quality heater should have a solid construction that will serve you for a long time.

Flow Rate

A heater’s flow rate is an important factor to consider when you are buying one, especially a tankless heater. The flow rate indicates the volume of hot water you can get from a heater per minute. The higher the flow rate, the more water you can get from a heater.

If you have a large family, you want to get a heater with a higher flow rate enough to cater to your family’s needs.

Energy Cost

The most common water heaters use either gas or electricity. Although electricity is the most eco-friendly option out there, it can be expensive using electricity to heat a large volume of water.

For a household with more people, you might want to get a gas water heater. Gas heaters are more economical when heating large amounts of water.

Tankless water heaters also help save a lot of energy, because they only turn on when hot water is needed, and therefore don’t depend on standby heat energy.

Best Quality Water Heater Frequently Asked Questions

1) I always have to let the water run when I open the faucet. What can I do about it?

Having to flush cold water from the system is both inconvenient and wasteful. Nowadays, you can buy a heater with recirculation technology that recirculates water in your pipes before you have to use it. This eliminates the wait time.

On the other hand, you can install a mini-tank water heater to complement the main heating unit, which also helps eliminate the wait time.

2) What’s a heater’s energy factor?

A heater’s energy factor is the rate at which the heater converts the energy supplied into heat energy. The higher the energy factor, the more energy-efficient a heater is.

When you are getting a heater, you typically want one that has the highest energy efficiency rate.

3) Are tankless water heaters better than traditional tank heaters and why?

Tankless water heaters have revolutionized the way we heat waters in our homes by cutting the energy heating costs by more than 30% in most of the cases. Besides, tankless water heaters are not susceptible to corrosion and leakages which make them last longer than tank heaters.

So, yes, tankless heaters are better than traditional tank heaters and much more economical to run because they only use energy when hot water is required. They also provide an unlimited amount of hot water.


Getting the best quality heater for your home’s hot water needs can be a bit hard sometimes, because of the many options you have to choose from. When you know exactly what to look for, however, the search becomes way easier for you.

I hope that this guide has helped explain what you need to look for when you are looking for a quality heater to get the best results. This list featured four quality heaters, all of which would serve you well, depending on your requirements.

We especially like the Bosch Electric 4-Gallon Mini-Tank Water Heater, a mini-tank water heater with a 4-gallon capacity. You should look it up!