Bosch US12 Electric Tankless Water Heater 98% Efficiency

Bosch is a leading name not just in electric water heaters, but a range of other household and commercial appliances. As far as water heaters are concerned, the Bosch Tronic 3000 Series contains several reliable and high-performance water heaters that can be used in all types of applications. The Bosch US12 is among the more reputable in the line, offering a continuous supply of hot water for one sink at a time. Having this appliance takes out the wait associated with getting hot water to the faucet. At TopTenWater.com, our team has taken the task of evaluating tankless water heaters to see which ones are doing well and which ones aren’t.

Description

Bosch is a leading name not just in electric water heaters, but a range of other household and commercial appliances. As far as water heaters are concerned, the Bosch Tronic 3000 Series contains several reliable and high-performance water heaters that can be used in all types of applications. The Bosch US12 is among the more reputable in the line, offering a continuous supply of hot water for one sink at a time. Having this appliance takes out the wait associated with getting hot water to the faucet. At TopTenWater.com, our team has taken the task of evaluating tankless water heaters to see which ones are doing well and which ones aren’t.

In our evaluation, we examined the Bosch US12 under a microscope to see what features consumers truly enjoy and what problems they’ve had with the appliance. From the get go, the unit has a small footprint, allowing it to be installed in small spaces. Therefore, the product is great for apartments or small homes. It can even be fitted and mounted under a sink or on a wall. Along with flexibility, the Bosch US12 (Bosch Tronic 3000 Series) has solid copper construction for its heat exchanger to ensure longevity and unparalleled performance flow of 2.3 Gallons Per Minute.

In addition, the US12 is UL Listed for utmost consumer safety. As far as energy usage is concerned, you can expect to save a fair amount of money thanks to this electric tankless water heater. It offers 98% energy efficiency with next to no standby loss. The appliance requires professional installation in most instances, since it should be hard wired to a dedicated circuit. For those looking to reduce their energy costs and get hot water on demand, the Bosch US12 (Bosch Tronic 3000 Series) is a coveted choice.

  • 240 Volts and 12kW appliance that can output 2.3 GPM.
  • Ideal for use in small applications with low draw.
  • Ultra-compact, lightweight design allows for convenient installation in discrete locations.
  • Unit functions on 50 AMP breakers.
  • Great for bathrooms and kitchens.
GOODBAD
Ideal for small applicationsOnly professional installation recommended
Offers an endless supply of hot waterTo be used in places where ground temperature is around 60F degrees
With its compact dimensions, it should be easy to installCan only be mounted lengthwise
Comes with thermostat for better controlCan only be hard wired to operate

Features

  • Can be used for multiple points of access simultaneously such as sinks
  • Activation rate of 0.6 GPM ensures hot water is provided even at low consumption
  • Thermal efficiency of 98%
Application TypePoint of Use
Water Connection Size½”
FinishWhite
Fuel SourceElectric
Maximum Temperature131F degrees
Minimum Temperature0F degrees
Minimum Activation Rate0.6 GPM
Heat Exchanged Warranty5 Years
Weight6 lbs
Width15”
Height7”
Amperage50 APMS
Water Connection LocationBottom
Wattage12 watts
Uniform Energy Factor0.8

TopTenWater.com takes its evaluation of water heaters seriously, which is why we have a comprehensive review process for each product. We ran the Bosch US12 tankless water heater through the same tests as we did with other units. Our team checked out what people on Amazon, Lowes, and Home Depot had to say about it. Users on Amazon were glad that the Bosch US12 was an inexpensive product that punched well above its weight. Due to the unit’s small form factor, it was easy to carry and install. It seemed that most users were able to make the unit operate on their own, without getting professional help. Let’s go deeper into what others said.

One consumer had been using the unit for 6 months and was overall happy. They took a shower without a problem, however, when their wife turned the kitchen sink hot water on, the temperature would dip a bit in the shower. According to the user, since the unit is small it can handle low draw applications. Another person bought a bunch of these water heaters for their strip mall stores. They claimed the heaters worked well for bathroom sinks and they were easy to mount. The consumer said they only had one unit fail in the last 8 years of owning multiple ones

One critical review stated that the unit worked very well for 3 weeks, but then it began to kick the breaker. The unit’s reset button was difficult to press and within two months of the purchase, it stopped working altogether. Unfortunately for this consumer, the product came with a 2 month return policy. Other negative reviews were along the same line, stating that the unit stopped working anywhere between a few weeks to a few months of owning it. Another user said that the appliance put out too much hot water, possibly because they lived in a warmer climate.

There were no reviews present at the time of writing this page

There were no reviews present at the time of writing this page

One user said they downsized to a tiny home and lived alone. They claimed that the unit was perfect for them. This was their second Bosch tankless heater, since the first one stopped working after ten years of usage. Another user said the unit was designed very well and installation was simple if you know what you’re doing. He suggested others to adjust the flow rate by tweaking the temperature. Another user named Patrick replaced his old 40-gallon tank with this tankless version. He said the results were great and he had access to hot water on demand.

There were no negative reviews posted for this product at the time of writing this review. However, one user did say in his positive review that the downside of owning this electric tankless water heater was you could only run a few faucets at a time. Also, if you decide to shower and someone else uses the faucet simultaneously, then the water temperature fluctuates a great amount.

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