BoschTronic 3000T 2.5 Electric Mini-Tank Water Heater

The Bosch Tronic 3000T ES2.5 is a 2.5-gallon point-of-use electric mini-tank storage water heater designed to deliver hot water directly at a single fixture, eliminating the wait caused by long supply runs from a distant primary water heater. It stores a fixed 2.5-gallon volume of water at the selected temperature and delivers that stored volume on demand. Once the 2.5-gallon stored volume is fully used, the unit must recover before additional hot water is available. The ES2.5 is not a tankless unit and does not deliver unlimited continuous hot water.

The ES2.5 plugs into a standard 120-volt, 15-amp household outlet and draws 12 amps at 1440 watts. No dedicated circuit, junction box, or hardwired electrical installation is required. A standard outlet in the under-sink cabinet or on the adjacent wall is sufficient for installation. The unit must not share a circuit that is already heavily loaded by other appliances, as combined draw could trip the circuit breaker.

The ES2.5 includes a mounting bracket that supports under-sink installation, wall-mounted installation, and floor-standing installation. The compact and lightweight design makes it manageable for installation in tight under-sink cabinet spaces. The mounting bracket is included in the box and does not require a separate purchase. The unit's small footprint allows it to be positioned without significantly reducing the usable storage space in the under-sink cabinet.

Once the full 2.5-gallon stored volume of hot water in the ES2.5 has been drawn and used, the unit will no longer deliver hot water until the tank has recovered — meaning the heating element has reheated the stored volume to the set temperature. The glass-lined tank and CFC-free foam insulation support a fast recovery rate compared to uninsulated alternatives, but a recovery period is still required before the next full volume is available. Customers requiring continuous or high-volume hot water output at a single fixture should consider the larger ES4 or ES8 models available at RuralEnergy.com.

RuralEnergy.com carries three models in the Bosch Tronic 3000T electric mini-tank series: the ES2.5 (part number 7738004996) with a 2.5-gallon tank, the ES4 (part number 7738004997) with a 4-gallon tank, and the ES8 (part number 7738004998) with an 8-gallon tank. All three models share the same 120-volt plug-in design and point-of-use installation approach. The ES2.5 is best suited for light single-fixture use where space is at a premium, while the ES4 and ES8 offer greater stored volume for applications with higher or more frequent hot water demand at the point of use.

The ES2.5 includes a temperature and pressure relief valve that automatically releases pressure if internal tank temperature or pressure exceeds safe operating limits, providing a standard safety measure required for all water heating equipment under most local plumbing codes. The unit is rated for a maximum operating water pressure of 150 psi. The 6-year limited warranty covers the tank and components against defects in materials and workmanship from the date of installation under normal residential use conditions.