Bosch External Hydropower 13H

Bosch HydroPower systems use the energy created by water flow through a small turbine to ignite the burner and begin the heating process. The system only ignites when a hot water tap is opened. Once the hot water tap is closed, the system turns itself off. This eliminates the need for a standing pilot light or electricity. Saving energy with hot water on demand as a result.
The principle for this revolutionary ignition system is to create an energy efficient appliance that is independent from electricity supply, saves on gas bills and is easy to install.

The Bosch 13H has a 5 Star Energy Efficiency rating. The unit delivers a 13 L/min flow rate and is available in Natural or LP Gas. It is suitable for 1 bathroom homes and conveniently provides continuous hot water without a powerpoint or a standing pilot light.


  • HydroPower ignition – heats water only when required
  • Continuous flow technology
  • Delivers 13 L/min at a 25°C temperature rise
  • Suitable for 1 bathroom homes
  • External installation
  • No electricity or standing pilot light required
  • Energy efficient
  • Simple installation
  • Dimensions (WxDxH) 405 x 265 x 845mm