Bosch Water Heaters:
Reviews, Pros and Cons

Bosch water heaters are a well-known brand for their quality, reliable engineering, and tankless technology and are widely used in residential and commercial water heating applications.

The hot water group is part of the superb heating system within Bosch Thermotechnik GmbH, a leading international manufacturer of gas and electric heating products. Check out the best electric and gas condensing water heaters.

An overview of Bosch water heaters

Bosch tankless water heaters, powered by natural or propane gas, are the most popular type for water heating, but the company also offers types and models that are very attractive to buy; small and tankless electric models, point-of-use tank-type, and gas boilers.

Gas tankless water heaters

Bosch gas tankless water heaterBosch gas tankless

Bosch water heaters do not utilize water storage tanks and are heating water on demand, providing hot water in endless and continuous supply - efficiently. With the tankless design, there are no more situations like running out of hot water during the peak time - when multiple fixtures are used for a long time.

Bosch water heaters with the tankless design are compact and small, installed on the wall, thus saving your home space for other use and making installation much easier.

As the heating takes place only when there is a call for hot water, and due to the ultra-high efficiency (condensing models), tankless heaters can save you a lot of energy and water and have less impact on the environment.

There are two types of the Bosch tankless; the Therm and Greentherm series, which can further be divided into condensing and non-condensing, or ultra-efficiency and high-efficient groups, all built for indoor and outdoor installation.

Best gas tankless models to buy

The best Bosch water heaters come from the condensing group, and a good example is Bosch Therm C1210 ES - the most powerful model, with the highest water flow and energy efficiency.

This unit is not Energy Star rated as its heating power is over the maximum considered - 225,000 BTU. For the Energy Star compliance, the maximum power should be up to 199,000 BTU, which is found on the condensing units such as Bosch C1050 - the second-largest unit.

Both models have high capacities - 12.1 and 10.5 GPM, and superior energy efficiency - 98% and 96%, making them ideal for large homes with the high hot water demand.

They can link up to 24 units into one system to supply even more hot water.

The Therm C1210 ES is ASME rated, while Therm C1050 ES is not, and it has an option to increase the output temperature to 184 F.

The units are equipped with automated and fully modulating bypass to provide a stable and accurate temperature of the outgoing hot water.

All the tankless water heaters come with a limited warranty of 15 years on the heat exchangers.

Residential electric models

Bosch WH17 electric water heaterBosch WH17

Bosch water heaters are also designed as electric, small tank, and tankless type, for point-of-use applications and whole-house use, such as the tankless with the high power.

Bosch Tronic 3000 T is an example of the efficient mini-tanks installed under or above the sink, or as an addition in the kitchen or bathroom, for fast hot water delivery. These models are found in sizes from 2.7 to 7 gallons.

There is also a tankless 3000 point-of-use group with models sizing from 3 to 12 kW built for on-demand water heating and point-of-use service.

Larger models (more power and capacity) are designed only as tankless, such as the Bosch Tronic 5000C / 6000C series, and these operate with power ranging from 17 to 36 kW and flow rate up to 5.4 GPM, making them ideal for homes with up to 3 bathrooms.

Best electric tankless models to buy

Bosch water heaters from the Tronic 5000C / 6000C series are the most advanced and best electric models to buy as the power can modulate from its minimum to its maximum power, supplying just enough hot water for small or large water jobs, and with less sediment buildup, due to the new scale prevention technology.

Gas boilers

Bosch gas boilers are available as the Greenstar and Buderus condensing and Buderus conventional boilers, where the condensing models are recommended to buy due to their excellent efficiency, low operating costs, energy savings, lower pollution, and consistent comfort.

For homeowners who prefer boilers over water heaters, Greenstar boilers are a good choice. The reasons are numerous and include advantages such as the compact size, condensing technology, and flexible installation. These boilers can be installed either on the wall or the floor, including a cascade setup. They offer combined space and potable water heating, superior efficiency, and a limited lifetime warranty on the heat exchanger.

This group carries a reward of the most efficient in 2016.

About Bosch

  • In 1886, Robert Bosch founded the "Workshops for Precision Engineering and Electrical Engineering" in Stuttgart, Germany.
  • In 1906 Bosch had established its first US subsidiary, and the Canadian office was opened in Montreal in 1954.
  • Bosch Thermotechnik includes popular brands like Bosch, Buderus, and Junkers. Bosch tankless water heaters are present on the market for over 60 years.

Bosch is a great company that has over 125 years of experience in water heating, of which 25 years in high efficient condensing heating only. Their water heaters cover different applications and support various systems such as residential, commercial water heating, recirculation system, and solar.

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