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Bosch Tankless Water Heater Reviews: Is it worth the extra cost?

There is nothing worse than taking an early morning shower with chilled water in winter. Bosch tankless water heater reviews can end this problem in your household by supplying warm water immediately whenever a fixture is turned on.

They are compact, energy-efficient, and are armed with premium quality heat exchangers to decrease the wait time. Also, their performance is very reliable.

The Bosch tankless water heater electric eliminates the “cold water sandwich” problem by producing nonstop hot water, thanks to the innovative modulating burners technology. This technology enables you to regulate your device’s temperature.

They have a longer lifespan than traditional heaters with larger containers. They have been designed to last for more than 20 years.

In today’s article, we are going to provide you a list of the 4 best Bosch electric tankless water heater reviews along with a buying guide that will help you choose the right machine according to your specific needs. You will also get to know about their advantages and disadvantages.  

A Brief Intro Of Bosch

Bosch is a global 500 company that produces a wide variety of power tools, thermo technology, commercial and residential appliances, and much more.

The brand was born in North America in 1906 and has operations including industrial units throughout North America. They are currently located in Farmington Hills, Michigan.

They outshine in multiple fields and provide the best services and solutions to their customers. They manufacture gas and electric water heaters too, most with higher energy-efficiency ratings and at reasonable prices.

Bosch Tankless Water Heater Reviews

ImageProductPrice
Bosch Electric Mini Tank Water Heater Tronic 3000 T 2.5 Gallon9.8

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-GallonFeature:

  • Its energy efficiency is 98% and its dimensions are 13.75 W x 13.75 H x 10.75 D inches.
PriceRead our Review
Bosch Electric Mini Tank Water Heater Tronic 3000 T 4 Gallon9.5

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-GallonFeature:

  • It supplies warm water instantly at the point of use.
Price
Bosch US3 2R Tronic 3000 Electric Tankless Water Heater9.5

Bosch US3-2R Tronic 3000 Electric Tankless Water HeaterFeature:

  • Its compact design empowers you to hang it at your favorite location.
Price
Bosch Electric Mini Tank Water Heater Tronic 3000 T 7 Gallon9.5

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-GallonFeature:

  • An ideal option for domestic applications
Price

1. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon – Best Overall

This point-of-use tankless heater is an exceptional product from Bosch. High-quality materials are used for its construction that will prevent rust and corrosion inside the tank.

Best Overall
Bosch Tankless Water Heater Reviews

Bosch Electric Mini-Tank Water Heater

Features:

  • You can install it beneath the sink or in the bathroom to get hot water whenever you want.
  • Its energy efficiency is 98% and its dimensions are 13.75 W x 13.75 H x 10.75 D inches.
  • This electric appliance has a glass-lined tank for sturdiness.
  • It can be mounted on the wall, floor, or shelf.

Its high-capacity container will give you outstanding outcomes. It has a boiler of 2.5 gallons which is enough for serving a small family of 2 to 3 people.

Additionally, it comes with an adjustable thermostat that facilitates you to modify the temperature according to your needs. You will also find a small dial at the front that helps you to do so.

We loved it because of its long warranty period. It boasts a 6-year warranty on the device itself and a 2-year warranty for parts. Furthermore, it has a compact size, so you can fix it under the sink or mount it on the wall.

Specifications:

  • Water Pressure Range: 150 psi
  • Wire type: Plug-In
  • Electrical requirements: 12A / 120V

Pros

  • The best option for small families
  • Reasonable price
  • Compact size
  • Silent and durable
  • Well-insulated

Cons

  • Takes time to install

Note: If you are on the outlook for a unit that can help you save storage space and have a higher energy efficiency rating, the Bosch Electric mini-tank water heater Tronic 3000 t 2.5-gallon is a superb choice for you. It is suitable for a small family.

2. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon

The Bosch tankless water heater electric is intended to be utilized at the point of use. You can mount it on the shelf, wall, or install it underneath the sink.

Great Value
Bosch Electric Mini Tank Water Heater Tronic 3000 T 4 Gallon

Bosch Electric Mini-Tank Water Heater Tronic

Features:

  • It supplies warm water instantly at the point of use.
  • It has a temperature and pressure relief valve.
  • This heater is insulated with CFC-free foam for increased energy efficiency.
  • Its glass-lined tank will last as long as possible.

It features a 2-year warranty on parts and a 6-year warranty on the unit itself. Its glass-lined boiler will last for a long time.

Besides, this affordable machine is insulated with CFC-free foam that makes it highly energy-efficient. It is 98% energy-efficient and has an eye-catching design.

The compact heater will easily fit in your residence and won’t take a lot of storage space. You can use it alone or support another device.

It is made of superior quality materials, so you can be sure that this unit is a remarkable purchase if it meets your requirements.

Specifications:

  • Water pressure Range: 150 psi
  • Temperature Range: 65-145°F
  • Water fitting: 1/2″ Male NPT

Pros

  • Easier deployment
  • Fits beneath the sink
  • Heats the water quickly
  • 2-year parts warranty

Cons

  • Small tank
  • Can provide water for one application at a time

Note: If you have a medium-sized family, the Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon is the right option for you.
It is designed to provide small quantities of warm water for a washing machine, sink, or shower. Its glossy and compact design is a real bonus.

3. Bosch US3-2R Tronic 3000 Electric Tankless Water Heater

The Bosch US3-2R Tronic 3000 electric tankless water heater is anticipated to provide an infinite stream of instant warm water to one or more fixtures.

Premium Choice
Bosch US3 2R Tronic 3000 Electric Tankless Water Heater

Bosch US3-2R Tronic 3000 Electric Tankless Water Heater

Features:

  • It provides a limitless supply of hot water at one or more faucets.
  • Its compact design empowers you to hang it at your favorite location.
  • This unit does not need a temperature and pressure relief valve.
  • Besides, it is covered by a 5-year limited warranty and needs only 0.3 GPM for activation.

It can be deployed at a 360-degree angle, which means you can easily install it in smaller spaces. The ultra-compact and lightweight unit features 98% energy efficiency and zero standby heat loss.

Moreover, this appliance does not need a temperature and pressure relief valve. It is well-suited for commercial settings such as offices, malls, airports, etc.

It requires only 0.3 GPM for activation. Also, it comes with a 5-year limited warranty. Bosch has wrapped it in a fine-looking white robust plastic housing.

Specifications:

  • Product dimensions: 12.8 x 6.6 x 2.9 inches
  • Size: 3.6kW
  • Voltage: 120 volts

Pros

  • Easy to install
  • Works great for its price and size
  • A 5-year warranty
  • Compact size
  • Beautiful design

Cons

  • The water cools right away.
  • Produces water at a slow rate.

Note: The Bosch US3-2R Tronic 3000 Electric Tankless Water Heater is a lightweight and compact unit that can easily meet the hot water needs of a big office or café. It is 98% energy efficient and is backed by a 5-year warranty.

4. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon

The Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon is one of the top-of-the-line water heaters available in the market.

Bosch Electric Mini-Tank Water Heater Tronic 3000 T

Bosch Electric Mini Tank Water Heater Tronic 3000 T 7 Gallon

Features:

  • Fully modulating gas-fired heater
  • It comes with concealed combustion and power vent flue
  • An ideal option for domestic applications
  • It can be utilized with storage containers
  • Meets the ultra-low NOx regulations

Undoubtedly, it is functional, versatile, and space-saving. You can install it under the sink to get hot water for you and your family whenever you require it.

Best of all, its energy-efficiency rating is 98%, which means it can help you save money. This product does not take a long time to heat water.

The dimensions of Bosch Tankless Water Heater Reviews are 17.5 x 17.5 x 14.5 (WHD) inches and you can mount it vertically or horizontally, whichever is appropriate for you.

Moreover, it can deliver 5.1 GPM on horizontal installation and 7 GPM on vertical installation.

Another noteworthy feature of it is that it has zero CFC-free foam insulation for maximum thermal efficiency along with a glass-lined container for long-lasting performance.

Specifications:

  • Water pressure range: 150 psi
  • Temperature range: 65-145°F
  • Dimensions: 17.5 W x 17.5 H x 14.5 D

Pros

  • Hot water on-demand
  • Compact and lightweight design
  • Reliable product

Cons

  • Costly

Note: The Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) is a promising device because its installation process is simpler and easier. Also, it has a compact and attention-grabbing design.


What Sort Of Warranty Does Bosch Propose?

They offer two types of warranties that are as follows:

Manufacturer And Extended Warranty

To avail of this warranty, you will have to pay an extra fee. It is very accommodating in the long run because you don’t know when your machine will stop operating suddenly.

Their customer service is outstanding and will replace your broken or damaged heater, within the bounds of the guarantee, with a new one.

Typically, this kind of warranty lasts for up to 2 to 3 years, hence, we would recommend you to obtain an extended one so that you can get compensation for damages that may come under the limits of the warranty.

Tankless Water Heaters Warranty

Most commonly tankless devices last for approximately 20+ years. Unlike tank-style units, they don’t corrode or rust due to water damage over the years.

That’s why; they have a lifespan of more than twenty years, while tank-storage appliances have a lifecycle of 6 to 12 years only.

Now, Bosch offers guarantees based on several factors and its warranties are split into three categories: heat exchanger, parts, and labor. The heat exchanger warranty lasts for 5 to 15 years, all parts warranty lasts for 2 to 5 years, and model and labor warranty lasts for one year.

Things To Consider Before Purchasing A Bosch Tankless Gas Water Heater

Before buying a tankless unit, consider these significant factors.

Energy Efficiency

Tankless devices utilize low energy compared to tank-style units. But this benefit has vanished if your unit still uses as much energy as the standard machine.

A heater’s energy efficiency is specified by its energy factor rating. Appliances with higher energy efficiency ratings have more power efficiency.

The Bosch heaters feature a 95% to 98% energy efficiency rating. You should pick a device that has more than 90% EG rating.

Electric Or Gas Unit

Bosch offers both gas and electric-powered devices. The electric ones rely on electricity to heat water, whereas the gas one utilizes natural gas.

Primarily, gas units are costlier than electric heaters, but they are affordable in the long term. They also have higher water distribution and flow rate than electric appliances and are highly suitable for bigger houses.

Several Water Outputs

You need to determine how much water your family uses in a day. Bosch Aquastar tankless water heater boasts different water outputs.

Make sure to choose the heater that can produce the desired number of gallons of water in a minute. This will also be influenced by where you live. Warmer areas have higher GPM compared to colder ones.

Budget

Budget is also an important factor that you need to consider before purchasing a heater. As a rule of thumb, expensive models are of higher quality. Bosch constructs premium quality appliances.

Also, the design of their products is resilient, so you won’t have to compromise on the product quality even at a minimal rate.

Maintenance

The heater you have selected should be easy to maintain so that you can save money on maintenance expenses. An electric device needs less maintenance than a gas one. Also, they are cheap compared to gas ones.

Gas units need to be examined once a year and are more susceptible to mineral accumulation. When it comes to electric heaters, you should clean their filter whenever required and flash the unit every 12 months.

Bosch provides maintenance assistance on the user manual to make it easy and stress-free for you.

Heating Performance

Tankless heaters provide hot water on-demand and don’t store it. The water either flows through a burner or a heating element that warms it and sends it through the hot water fixture.

Low-quality devices have defective heating components that develop hot spots sooner or later in their lifecycle. Hot spots will enhance the waiting time or the water generated will not be warm enough.

Bosch propane tankless water heater uses stellar quality burner or heating elements to guarantee a nonstop stream of hot water.

Advantages Of Bosch Tankless Water Heater

Energy Savings

Bosch tankless appliances come without a container, permitting you to use warm water whenever you want.

You get a never-ending supply of water and they also eliminate the standby heat loss, which means you can save a lot of money.

Some of their units are 98% energy efficient and have 2% heat loss. Their devices are manufactured with a pre-mix combustion process.

This process has various benefits such as lower exhaust temperature allows inexpensive venting pipes and easier deployment, low NOx gas emission for environment safety, and higher energy factor for greater savings.

Limitless Hot Water Supply

Bosch electric tankless water heater reviews have an element modulation system that is liable for regulating the water output temperature.

It makes sure you acquire stable water temperature when using it. Besides, it also relies on flow sensors to offer you control over the temperature. It means you can change the temperature whenever you want.

Durability

With a Bosch machine, you can rest assured of endless water supply to your house for many years. They are designed to be last for 20 years because superior quality components have been used for making them.

The cut-out technology shields the unit’s elements when the temperature rises extremely high. The water filters are there to protect the elements from dust and grime. A freeze protection system keeps them safe in the cold climate.   

Advanced Electronics

Some of their heaters have an integrated electronic control board, so you can use the LCD display and buttons to see, monitor, and fine-tune the temperature, program, and check the error codes with the help of an advanced diagnostic system.

Clean Water

Traditional units are disposed to rust and scale within the boiler. These things are the outcome of keeping warm water in the tank for prolonged periods.

But, with a tankless appliance, you won’t have to face this issue. When you open the fixture, it will provide you with clean and fresh water, not water that has been stored in the corroded tank.

Compact

The majority of tankless machines have a compact size, so you can install them at your desired place. Some of the Bosch electric tankless water heater reviews are small enough to fit beneath the sink or bathroom.  

Disadvantages Of Bosch Tankless Water Heater Electric

Higher Deployment Expenditures

If you want to install a point-of-use unit, the installation cost will be lower. Moreover, electric appliances also don’t cost much to install since they don’t need to be vented.

However, they do need electricity to run, which can be a trouble for older households.

On the other hand, if you are thinking about deploying a gas or propane machine, you will need to consult with a licensed plumber before making a final decision.

They should be installed by a professional. You will also have to pay an additional amount for retro-fitting and venting.

Higher Initial Price

As we mentioned above that electric heaters are affordable, but gas ones are costly. The inexpensive ones are of lower quality and have fewer features.

Before buying the Bosch tankless water heater, consider the unit’s installation cost. Expensive gas devices are easier to deploy because of the approach they vent their exhaust fumes.

In this way, you will have to spend a higher initial price for the tankless heater, less price on installation, and have a premium quality unit that will serve you for a lifetime.

Sizing Of Bosch Propane Tankless Water Heater

Tankless units are deliberated to supply hot water at the point of use. They have a compact size so that they can easily fit into smaller spaces.

Larger heaters won’t fit into small places. Therefore, before buying a device, consider how much space you have in your house and where you want to hang it.

Flow Rate

The total gallons per minute estimates the rate at which your unit sends warm water to the faucet. If a heater’s flow rate is 1 GPM, it would be suitable for handwashing only and you won’t be able to use it for bathing.

2.5 gallons of water per minute is the flow rate of an average tankless machine. If you have a large family, this flow rate would not be sufficient. In such a case, you may need to install multiple heaters or a single device with a flow rate of 4 GPM.

Fuel Type

According to fuel type, there are mainly two sorts of tankless appliances—gas and electric heaters.

Gas ones depend on burners to heat incoming water, require extra special assessments for protection, and have higher initial and installation costs.

On the other hand, electric ones rely on heating elements, don’t require venting, and have lower initial and installation costs. But, they may have higher working expenditures.

Conclusion:

To sum it up, the heaters we have reviewed in our guide are a small portion of the huge assortment of items distributed by Bosch.
These devices can easily compete with other tankless units currently available in the market. The organization is continuously refining and upgrading its products.
Their appliances have several revolutionary features that are not present in other companies’ units. The energy-efficiency ratings of Bosch tankless water heater reviews are some of the highest in the industry.
Their preliminary rates are pretty high, but their superior quality and first-class performance make them worth your consideration.

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