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Bosch Tronic 3000 Review – (Under-Sink / Point of Use)

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Bosch-Tronic-3000-Electric-Tankless-Water-HeaterThe Bosch Tronic 3000 point-of-use tankless water heater is an electrically powered heater that is made to supply hot water for household use. This heater has a wattage of 12000 watts which contributed to its efficiency. It can run on a voltage of 240 volts, while the lowest sized can only run on 120 volts. Also, you can set the temperature to your preferred range through the on-unit thermostatic control.

This 12 kW electric on-demand water heater possess a 98% energy efficiency, and this means that there’s little standby loss. It can heat up water to about 75 degrees Fahrenheit. The US3 size has a GPM output of 0.5 when the temperature rises to 45degree Fahrenheit while the rest have 1.1, 1.4, 1.8 GPM output accordingly. When the temperature rises to 75 degrees Fahrenheit, the US3 doesn’t have any output. At this stage, the US7 heater output a GPM of 0.7, 0.9 for US9 and 1.1 for US 12. The minimum circuit breaker amperage for the US3, US7, US9, and US12 is 30, 30, 40 and 50 respectively.


Moreover, you don’t have to worry about where to put it. The heater can be mounted on the cabinet wall just below your sink or anywhere else you might prefer. Most models can be mounted both vertical and horizontal. This unit comes with a design which blends so well with the kitchen decor. Also, it is ultra compact and very lightweight. With a weight of 5 lb, which is relatively light compared to other electric on-demand water heaters on the market. It has a dimension of 6.5″ x 12.25″ x 3″. The quality of this electric point-of-use water heater can’t be matched but to give you better assurance, it comes with a five years warranty.

The Bosch Tronic 3000 water heater comes in four different sizes, the US3, US7, US9, and US12. All sizes can be mounted on the wall under-sink. The kW input on the high side is 3.4, 7.2, 9.5, and 12 while the low setting is 3.4, 3.6, 4.75 and 12. The minimum wire size is 10AWG for the heater of size US3 and US7, and for the US9 and US12 model; the minimum size is 8AWG and 6AWG respectively. You can also place them in your cabinets, and they fit well with the existing decor thanks to their attractive designs. There’s no need to have pressure or temperature relief valve in order for this tankless water heater to work effectively. It already comes with a 98% thermal efficiency which is capable of heating the water to the preferred degree.

Areas of Use

Bosch Tronic 3000 tankless electric water heater can be used in a variety of places. It provides a lasting solution for the laundry room, pool houses, basement wet bars, RVs and boats, garage, bathrooms, kitchens, patio sinks, attic, utility room, and homes. We advise you to seek the service of a professional when setting the heater up so as to make sure it is safe for your use. It is Energy Star certified.


Sometimes, you have to wait for hot water at a sink which is located far from the central heating source. This can be so daunting — you only cold water running through the pipe to the sink. Some people opted to plumb hot water pipe to all sink, while this looks like a real solution, it is very expensive to set up. In order to have access to hot water when and where it’s needed. The best solution is to install the Tronic 3000 from Bosch. It is a point-of-use electric tankless water heater.

This type of tankless water heaters can save energy a great deal, and this equates saving money. Apart from this, the Bosch Tronic 3000 takes up far less space than a traditional water heater, and it can be installed on the wall somewhere around the sink especially under it. This means it doesn’t take up any space in your home. Maintenance is low when you opted for Bosch Tronic water heater. This is because they don’t hold water anywhere, and they only require electricity to run; no fuel, nothing else.

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  • Fast And Reliable

    Sometimes, you need to use hot water, and you don’t want to wait before you get it. The Bosch tankless water heater can come handy whenever you are in this situation. It is electrical powered and it supplies hot water instantly for your use at your sink. What else could be better than this? Giving you want you to want at the right time almost immediately. This heater is very fast, and you can rest assured that it would be there for you anytime you need it.

  • Cost-effective

    It can be costly and even stressful to have a water heater which still needs a storage tank to work. Investing in a storage tank is expensive considering the maintenance and upkeep it requires to last long. When out choose the botch Tronic 3000, this means you don’t have to worry about the cost of a tank because you won’t be needing it. That saves a lot of money.

  • Can fit in small spaces

    Don’t have enough space in your house? Relax, the Bosch water heater doesn’t take too much space. It is very light and compact. You can mount it on the wall, and it can fit in your kitchen cabinets.

  • Multiple Supplies

    It can supply hot water endlessly to the kitchen and also the bathroom or any other places you want at the same time. It can produce enough hot water to run two sinks at the same time. Yes, it has the ability to do that. It is ideal for commercial and residential applications where uninterrupted hot water supply is needed in different rooms at a time.


  • Should be close to hot water use supply

    One of the downsides of this tankless water heater is that unlike the others, Bosch Tronic 3000 can’t be mounted to a room different than your hot water use faucet. It can only be placed under-sink or near the faucet. The good news is that it doesn’t take much space with its compact design and it is very easy to hide it.

  • Limited to 240 volts

    You can only run this heater on a voltage of 240 volts, anything higher than that is not advisable. Not to worry, the 240 volts is all it needs to work efficiently.

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The Bosch Tronic 3000 point-of-use tankless electric water heater is designed to meet all your needs regarding hot water. It is fast and doesn’t require the use of a storage tank to work. Its attractive design makes it possible for it to fit in many household decors. You can manually control the temperature and set it to your preferred degree. Besides, it has a 98% thermal efficiency which is one of the best energy-saving features. The fact that it saves you money is enough reason to choose this electric water heater. The maintenance is relatively low, and it also has a five years warranty. Needless to say, the Bosch Tronic electric on-demand water heater is an excellent choice for every home and other settings where instant hot water is always needed.

by Water Heater Mag

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