Customer Reviews for Bosch Tronic 3000 US4-2R 4kW 2.5 GPM Point-of-Use Electric Tankless Water Heater

Easy to install works great. Now I have hot water in my shop so I can wash comfortably.

The heater was easy to install and works great for my application. I added a bathroom to my garage and use this for my sink and it works fantastic.

Bought 2 Bosch 3000 units both were defective.

Returned US3 for larger US9 unit

Works good but you can’t turn the water on all the way, if you do the water will only be warm.

Has only been installed a very short time. Thus far we are very satisfied.

This unit worked perfectly for the project. Thanks

Provides adequate supply of hot water for bathroom wash basin.

Easy to install, small footprint. Provides hot water fast! We love it and will buy more for our addition.

Rating provided by a verified purchaser

Rating provided by a verified purchaser

Rating provided by a verified purchaser

Finally really hot water at the sink. Our old 110 volt heaters were just not up to the job. These really work, easy to install.

Our plumber installed the Bosch Tronic 3000 US7 unit under our kitchen sink to provide instant hot water to both the kitchen sink and the dishwasher. The unit performed well during the summer, but it provided only moderately warm hot water to the dishwasher in the winter when the ground water was colder. More importantly, the unit suddenly sprang a massive internal leak about 8 months after installation. It was fortunate that we were home at the time and could turn off the water supply to avoid a flood in the kitchen. KUDOS to Home Depot for providing a FULL REFUND.

This unit did everything it was supposed to do and the install was easy.

Purchased it as a a preheated for my main tankless. Works great.

The flow is terrible after installing the aerator. The hot water is not instant. Wish I had my money back.

I bought this based on the online information on website. Got it home, and discovered the specs listed did not contain correct amp info, so I could not install it. Very disappointing.

Pros: compact in size, all copper water ways, made in England not China. Cons: must remove cover to reset internal over heat limit switch which will trip on high setting must remove cover to switch to low. Low is adequate in summer. Will most likely need to be set on high in winter. 240 volts inside

the tankless water heater was easy to hook up and is working like we hoped it would. Plenty of hot water.

Heats water well

Unit never activated after all the plumbing and connections where made.It had power all the way to relay switch but led never came on and water never heated up

Husband put this in his shop and he loves it.

Installed by professional, but works great.

Replaced a 40 gallon tank servicing an often used large guest bathroom and couldn't be happier as this unit provides on demand, lasting adjustable hot water.

This water heater is perfect for my application, hand washing in a shop. You'd want a higher capacity unit if you require any more heat, such as dishes, etc.

it did not heat water hot enough on high setting

Bosch is an outstanding brand. the unit is easy to place and use. perfect for a single sink. my first one lasted 10 yrs.

Not what I expected, it's Luke warm water, it's not even hot water. I'm going to look for a different item, even if it's a all water heater.

WORKS BETTER THAN ANTICIPATED!