Do you wonder why most people don’t prefer tank water heaters anymore? That is because tankless water heaters give you the best of both worlds. Not only do you get hot water whenever you want, but also you save a significant amount on bills. 

Well, it is sensible to find out everything about your potential tankless water heater first. After all, you wouldn’t want to make a bad investment by getting a whole-house unit to run hot water in a single fixture, would you? 

Now that you have decided to go for a tankless water heater, Bosch is one of the names to consider. The company offers a myriad of tankless units but buying one from them can be tricky. That is why we will be covering different models of Bosch water heaters. Will you find the right one for you? Well, there’s only one way to find out, and that is by checking out this detailed review.

Bosch Tronic 3000 US12 Review


You don’t need to run long water pipes from a central heater to run one faucet. Instead, you can get the point-of-use Bosch Tronic 3000 US12 electric tankless water heater offering up to 1.8 GPM. You will be saving a lot of money on installation costs with this compact heating unit, and that is not the only good thing about it.

Bosch Tronic 3000 US12 Review – Pros and Cons

Let’s put forth the positive and negative points of the Bosch Tronic 3000 US12.


  • Compact design is well-suited for a single fixture, such as in RVs and boats
  • Energy Star compliant and 98% energy-efficiency 
  • Ecofriendly
  • Prevents leakage


  • Low output flow rate

Bosch Tronic 3000 US12 Review – Features

Bosch-tronic Here are the praiseworthy features of the Bosch Tronic 3000 US12.

High Thermal Efficiency Rate

Unlike tank water heaters, tankless units ensure minimal loss of energy. That is why it keeps you from paying hefty electricity bills. The Bosch Tronic 3000 US12 tankless water heater boasts an ultra-high efficiency of 98 percent. So, you save both money and space with this compact unit. 

Thermostatic Temperature Control

As stated earlier, the tankless water heater can provide up to 1.8 GPM of hot water. The interesting part is that this model comes with thermostatic control, and you can set your desired temperature with ease. Also, you will find a factory-fitted valve that allows you to control the incoming water pressure. 

Eco-friendly CFC-free foam

You want hot water running in your tap, but you wouldn’t want it at the expense of ruining the atmosphere. Several manufactures have ditched the chlorofluorocarbon (CFC) foams for insulation purposes. Bosch, being a responsible brand, uses a non-CFC foam for insulating. On top of that, the CFC-free foam is far more efficient. So, t’s a win-win! 

Leakage Control

Despite its size, the Bosch Tronic 3000 US12 features a robust body and sturdy copper coils. The design also includes glass linings. So, you don’t have to worry about the water heater leaking, even after taking a bump. Since there isn’t going to be any leakage or damage to the unit, you can put aside your maintenance and replacement concerns. 

Bosch Tronic 6000C Series (WH17 and WH27) Review

While the Tronic 3000 US series covers single fixture needs, the Bosch 6000C series steps up as a compact yet whole-house tankless water heater. You will find two variants under the banner of Bosch 6000C: the WH17 and WH27.  Bosch-Tronic-6000C

Difference between WH17 and WH27 Tankless Water Heater Units

Although you might not find many differences between the WH17 and the WH27 version, the Bosch 6000C WH27 is pricier than its WH17 variant. If you are wondering what separates the two, it is the output of hot water flow and energy. The rest of the features and specifications are the same, except that the WH17 gives an energy output of 17.25 kW at 240 volts, whereas the WH27 version has a 26.85 kW energy output. Consequently, the WH27 provides a maximum flow rate of 3.5 GPM compared to 2.3 GPM of the WH17.      

Bosch Tronic 6000C Review – Pros and Cons

Here are the good and bad things associated with the Bosch Tronic 6000C.


  • Prevents scale
  • 97% energy-efficiency 
  • Ecofriendly
  • Built-in flow sensors


  • Low output flow rate
  • Only suitable for small homes with 1 or 2 bathrooms

Bosch Tronic 6000C Review – Features

Bosch-Tronic-6000C Here are the significant features of the Bosch Tronic 6000C. 

Electronic Flow Sensors 

The Bosch Tronic 6000C tankless water comes with its flow sensors and an electronic flow switch. What the former does for you is that it provides a consistent temperature of hot water. It does so by accurately computing the amount of water and modulating the flow and heating elements accordingly.  

Great Thermal Efficiency

Are you worried that greater output will result in higher bills? That is somewhat true for some tankless water heaters, but not with the Bosch Tronic 6000C. It possesses a super-high efficiency of 97 percent for both of its models. As compared to tank water heaters, this model can notably reduce bills by 40 percent.   

Durable Copper Heat Exchanger

Water heaters use heat exchangers to warm up the water. That is why it is crucial to have a reliable material for the purpose. Copper does the job well, and Bosch uses it in the 6000C tankless water heater series. The used element is quicker in exchanging heat, and thus, provides hot water instantly. Also, copper is one tough and resistant material. You wouldn’t have to replace this one, that is for sure.  



 Final Verdict 

If you want to save bucks on your hot water needs, tankless water heaters are the way to go. Bosch is continuously providing high-quality products, which makes it a formidable name in the market. You can see that with their tankless water heaters.    So, you can be sure of the 3000 US12 to provide endless hot water to a single fixture and save a hefty amount in bills. For whole-house operation, Bosch Tronic 6000C does well, although you might not get exceptional gallons per minute.


Review Date
Reviewed Item
Bosch Tankless Water Heaters
Author Rating
Product Name
Bosch Electric
USD 225.04
Product Availability
Available in Stock