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

The Bosch Tronic 3000 T is one of the top-rated tankless water heaters on the market. There is no wonder, though, because it’s convenient, functional and space saving. On top of that, it’s by a reliable, proven tankless water heater brand known among thousands of households worldwide. In the following, let’s discuss the features why it is on top of the list.


Easy and convenient installation

Look for this feature when shopping around for a tankless water heater. With it, you can be certain of getting it setup in a breeze, no complicated steps. The Bosch Electric Mini-Tank Water Heater is quick to install.

It can be shelf, wall or floor mounted. That’s more options for you! The Bosch Thermotechnology won’t give you a hard time figuring out where to install it, too, because it’s compact and small, allowing installation in a really tight space.

In addition, there is a bracket included for the vertical installation whether you select to mount it on the floor, wall or shelf. All you have to do is to tap it into the cold water line and set it up under the sink for hot water source.

On-demand hot water source

The 7-Gallon (ES8) capacity electric water heater can be installed right under the sink, allowing for on-demand hot water. Its mini tank can provide you and your loved ones hot water wherever you need it.

What’s more is that it offers a thermal efficiency totaling to 98 %. It just means that this model can also save you time in addition to supplying your family with hot water whenever.

Horizontal or vertical

The mini-tank water heater with dimensions 17.5 x 17.5 x 14.5 (WHD) inches allows for a vertical or horizontal installation, whichever is right for you.

Horizontally, this item can provide you with up to 5.1 gallons of water supply or 7 gallons if vertical. Just do note that the vertical installation is installed with the hot and cold water line above it.


Another thing worth mentioning about the Bosch Tronic 3000 T is that it does not need to take much time heating water. In fact, this one can supply your office or home with a reliable water source anytime.

This item can also heat water between 65 and145 degrees F. It just means more options for you when it comes to choosing the ideal temperature you need.

It is also valuable for recreational vehicles and boats as well as garages, pool houses and basements. You can also install it in patio sinks or kitchenettes.


Not to mention, this water heater also has zero CFC foam insulation, allowing for better efficiency as well as glass-lined tank, ensuring heavy-duty performance. Thus, there is really quality for a long time to expect from it.

No long waiting time

Waiting for hot water whenever you’re in a hurry or rush is simply a no-no. None of us has so much time to be frustrated about it. The solution is the Bosch water heater that works efficiently in supplementing your home’s main water source if you have one.


The Tronic 3000 T is also ideal for applications that include supplementing a water heater far from your sink, primary heating source or a buffer in-line with any tankless water heater that has cold water sandwiching or intermittent cold water.

Whatever configuration, you can have peace of mind that there will be very little standby loss from this model.

Three sizes available

Depending on what you need, there are three sizes available for the functional and versatile Bosch Tronic 3000 T. You can also select the 2.5-Gallon or 4-Gallon Mini Tank based on the capacity you need.


The Bosch Tronic 3000 T has an operating pressure of 150 Psi, so take note of that to prevent damage and keep it on top condition. When it comes to the fittings, this model requires ¾-inch Male NPT as well as electricity source of 120V and 12A.

Also, if you missed connecting the pressure relief valve for drainage, you might notice moisture escaping the valve. It might make you think of a minor tank leak. To solve this issue, you might want to use a drain vessel or pan for moisture collection.


  • 1440W heating capacity
  • Can be installed vertically or horizontally
  • Hot water on demand
  • Convenient and reliable
  • Compact and small footprint


  • Expensive


If for anything, the Bosch Tronic 3000 T is a promising mini-tank water heater because it does not require complicated installation process. So if you know how to do it, you don’t need to hire someone else.

Also, this model is compact and has a small footprint. In fact, you won’t even notice it is there. You can have it vertically or horizontally installed, and then receive continued, on-demand hot water whenever, wherever at home or office.

The water heater is for you if you’re living in a small apartment, condominium or any other small living spaces. It is also fit for offices that require hot water but does not have a large area for a conventional hot water tank.
Get the Bosch Tronic 3000 T today!

2 thoughts on “Bosch Tronic 3000 T 7-Gallon Electric Mini-Tank Water Heater Review”

  1. Bosch Tronic 3000 T 7-Gallon Electric Mini-Tank Water Heater Review
    I bought this for the single sink in my at studio. How does one get hot AND Cold water from it? I’ve searched everywhere with no answers

    • Hi Kristen,

      You should be able to access both hot and cold water while using this Bosch Tronic unit. If you’re having issues with this, I’d suggest connecting with a plumber or contractor who can help you diagnose the issue. If you’re looking for a referral, you can find someone to chat with and who will provide you with a free quote here:



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