Bosch Tronic 3000T 7.1 Electric Mini-Tank Water Heater

The Bosch Tronic 3000T ES8 is a 7.1-gallon point-of-use electric mini-tank storage water heater designed to deliver hot water directly at or near the point of use. It can serve as the sole water heating source for a single fixture or small space application, or it can be installed inline with a central primary water heater to supplement temperature and eliminate the wait for hot water at a distant fixture. The ES8 stores a fixed 7.1-gallon volume of water at the selected temperature and delivers that stored volume on demand, requiring a recovery period once the full volume has been used.

The ES8 plugs into a standard 120-volt, 15-amp household outlet and draws 12 amps at 1440 watts — the same electrical supply as the smaller ES2.5 and ES4 models in the Tronic 3000T series at RuralEnergy.com. No dedicated circuit, junction box, or hardwired electrical installation is required. A standard outlet in the installation area is sufficient, provided the circuit is not already heavily loaded by other appliances that could cause the circuit breaker to trip under combined draw conditions.

The ES8 supports both horizontal and vertical mounting orientations. This flexibility is made possible because the piping connections can be installed at either the top or the side of the unit depending on the existing plumbing configuration at the installation location. The unit may be wall-mounted or floor-standing in either orientation. This installation flexibility makes the ES8 adaptable to a wider range of under-sink cabinet configurations, utility room installations, and garage or in-law suite applications where space constraints or existing plumbing positions may limit standard vertical mounting.

The primary difference between the ES8 and the smaller ES2.5 and ES4 models in the Tronic 3000T series is stored tank capacity. The ES8 holds 7.1 gallons, the ES4 holds 4 gallons, and the ES2.5 holds 2.5 gallons. All three models share the same 120-volt plug-in electrical supply, 1440-watt heating element, and glass-lined tank construction. The ES8 is best suited for applications requiring a larger stored volume per draw cycle, such as a hand-washing sink with frequent use, a small bathroom serving multiple users, or an in-law suite where the primary water heater is located far from the fixture.

The ES8 includes a temperature and pressure relief valve as part of the standard unit package, which means no additional T&P valve purchase is required for a standard installation, subject to applicable local plumbing code requirements. The included T&P valve automatically releases pressure if internal tank temperature or pressure exceeds safe operating limits. The installer should confirm that the included valve meets the requirements of the applicable local plumbing code for the specific installation jurisdiction before completing the installation.

The Bosch Tronic 3000T ES8 carries a 6-year limited warranty on the inner glass-lined tank and a 2-year limited warranty on parts from the date of installation under normal use conditions. The glass-lined tank warranty provides coverage against corrosion and tank failure for the defined period, while the parts warranty covers components incorporated in the water heater at the time of manufacture. Warranty terms require installation and operation in accordance with the product installation instructions and applicable local codes.