Product Overview
The BOSCH Tronic 3000 T 2.5-Gallon Electric Mini-Tank Water Heater (Model ES2.5) is designed to provide hot water quickly and efficiently at the point of use. Its compact size allows for versatile installation in various locations, such as under a sink, on a shelf, or mounted on a wall. This unit is an excellent solution for eliminating long waits for hot water, making it ideal for bathrooms, kitchens, or other areas where immediate hot water is desired.

Image: The BOSCH Tronic 3000 T 2.5-Gallon Electric Mini-Tank Water Heater, showcasing its compact design and control dial.
Key features include a durable glass-lined tank for extended service life, a fast recovery rate to ensure continuous hot water supply, and an external dial for easy temperature adjustment. The unit operates on a standard 120-volt outlet, offering flexible installation options.

Image: A child washing hands at a sink, illustrating the convenience of instant hot water provided by the mini-tank heater.
Setup and Installation
The Tronic 3000 T ES2.5 is designed for straightforward installation. It can be installed independently by plugging into a 120-volt outlet or in-line with a larger hot water source. The unit supports shelf, wall, or floor mounting, with a bracket included for wall installation. Always ensure proper plumbing connections and electrical safety during installation.

Image: The mini-tank water heater installed discreetly under a bathroom counter, demonstrating its compact footprint and independent installation capability.
For detailed installation instructions, please refer to the official Installation Manual (PDF) available at: Installation Manual (PDF).
Component Identification

Image: A diagram illustrating the key components of the water heater, including the hot water inlet, cold water inlet, temperature and pressure relief valve, and thermostat.
- Hot Water Inlet: Connects to the hot water supply line.
- Cold Water Inlet: Connects to the cold water supply line.
- Temperature & Pressure Relief Valve: A safety device that releases water if pressure or temperature exceeds safe limits.
- Thermostat: External dial for adjusting the water temperature.
Installation Video
Video: An official product video demonstrating aspects of the water heater's installation and features.
Operating Instructions
Once installed and filled with water, plug the unit into a grounded 120-volt outlet. Use the external dial on the front of the unit to set your desired water temperature. The heater's fast recovery rate ensures that hot water is available quickly after initial heating or after a draw of hot water.

Image: A man washing his face at a sink, demonstrating the immediate availability of hot water for daily use.
The unit is designed to supply hot water for up to two sinks at a time, depending on usage and temperature settings.
Maintenance
To ensure optimal performance and longevity of your Bosch Tronic 3000 T water heater, regular maintenance is recommended. The glass-lined tank is designed for durability, but periodic checks can prevent issues.
- Anode Rod Inspection: Consult the installation manual for recommended inspection and replacement intervals for the anode rod. This component helps protect the tank from corrosion.
- Heating Element Check: If you suspect issues with heating, a qualified service technician should test the resistance of the heating element (expected range: 8-10 ohms). Replace the element if readings are outside these values.
- Pressure Relief Valve: Periodically check the temperature and pressure relief valve to ensure it is not leaking and is functioning correctly.
Troubleshooting
If you encounter issues with your water heater, refer to the following common troubleshooting steps:
Water Does Not Get Hot
- Ensure the power supply is on and working correctly. Check the circuit breaker.
- If the indicator light is on but water is not hot, test for a plumbing crossover: Shut off the cold water supply to the heater and open the hot water tap. There should be no water flowing. Any continued flow indicates a crossover that needs correction.
- Contact a qualified service technician to test the resistance of the heating element.
Leaking
- Check water fittings and the Temperature & Pressure (T&P) fitting on top of the tank for tightness.
- Remove the front cover and inspect the heating element gasket for any signs of leakage.
- If the tank itself is leaking, contact Bosch Water Heating for warranty claims if within the warranty period.
- Inspect the anode rod; a corroded anode rod can lead to tank issues over time.
Further troubleshooting solutions are available in the official installation manual on page 11.
Specifications
| Feature | Detail |
|---|---|
| Brand | BOSCH |
| Product Dimensions | 13.75"W x 13.75"H x 10.75"D |
| Special Feature | Lightweight |
| Color | White |
| Wattage | 1440 watts |
| Voltage | 120 Volts (DC) |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Heat Output | 2.5 Gallons |
| Efficiency | 98% |
| Style | Water Heater |
| Maximum Pressure | 41.4 Bars |
| Mounting Type | Wall |
| Is Electric | Yes |
| Manufacturer | Bosch Thermotechnology Corporation |
| Item Weight | 15.5 pounds |
| Country of Origin | USA |
| Item model number | 7738004996 |
| Size | 2.5 Gallon |
| Pattern | Water Heater |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
Warranty and Support
The BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) comes with a 6-year warranty on the unit and a 2-year warranty on parts. For warranty claims or technical support, please contact Bosch Water Heating directly.
Manufacturer Contact Information: 800-283-3787
For the most comprehensive information, including detailed installation diagrams and safety guidelines, please refer to the full Installation Manual (PDF).





