Bosch WRD11G31 11 Litre Hydro Ignition LPG Gas Water Heater

Bosch WRD11G31 11 Litre Hydro Ignition LPG Gas Water Heater -
Bosch WRD11G31 11 Litre Hydro Ignition LPG Gas Water Heater -
BoscH gas Solar Kit
Bosch : System Diagram : Gas Water Heater

Bosch WRD11G31 11 Litre Hydro Ignition LPG Gas Water Heater

Regular price R 4,296.13
R 4,940.55 incl. VAT
Optional Solar Kit
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All it takes to fire up a WR-Range water heater, is the opening of a tap. Ignition is achieved with the help of a battery or the Bosch Hydro Power ignition system making use of the most clean and economical energy source possible: the force of the water is responsible for the ignition of the burner.
The exclusive hydrodynamic generator makes use of waterpower in order to produce the energy required to feed the electronic circuits and trigger the ignition. In so doing the utilisation of external power sources are negated. The WR-Range of water heaters with hydrodynamic generator ignition have a wide range of power, which enables them to work in any installation.
The ignition pressure is 0.35 bar, making it the lowest of all appliances of this type. Simply put, a Bosch ignites where others cannot.


  • Powerful - However large or small your hot water requirements are, Bosch has the appliance with the output to suit.
  • Economical - Instantaneous water heaters only use energy when hot water is used
  • Safe - The built-in thermoelectric flame-failure device prevents gas leaking if the pilot light goes off.
  • Convenient - Hot water wherever and whenever needed.
  • Compact - Attractive and compact design saves space and makes these appliances ideal for both old and new properties.
  • Versatile - Whichever option you choose - point of use or central supply - Bosch has the right water heater for you.

Product Specifications

  • Model: Therm 4000 WRD11-G31
  • Output (kW): 19,2.
  • Ignition type: Hydro Power .

Gas data

  • Gas type: LPG.
  • Gas consumption: LPG - butane/propane 1,75kg/h.

Water Data

  • Max permissible water pressure (bar): 12.
  • Minimum operating pressure (bar): 0,1.
  • Flow range (l/min): 2 - 5,5.
  • Temperature control at minimum setting: Ambient +25°C (Flow Rate: 4.0 – 11.0 l/min).
  • Temperature control at maximum setting: Ambient +50°C (Flow Rate: 2.0 – 5.5 l/min).
  • Applications: Shower and basin.

General data

  • Voltage: N/A.
  • Frequency: N/A.
  • Dimensions (h x w x d) mm: 580 x 310 x 220.
  • Weight (excluding packaging): 11 kg.

Optional Solar Kit (Please click here for more information)
To improve the quality of hot water distribution in water heaters and boilers, while making them compatible with thermal, solar-powered systems for heating household water. Its function involves maintaining a constant setting for the temperature of the mixed water that is provided for use, when conditions for supplying hot and cold water vary. The Solar Kit can operate continuously, with hot water temperatures resulting from solar accumulation or from the support device.

Bosch 110mm x 600mm Gas Water Heater Flue -
Bosch 110mm x 600mm Gas Water Heater Flue
R 405.22
R 466.00 incl. VAT
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