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GT 330, GT 430 and GT 530
High output cast iron oil/gas-fired boilers

The De Dietrich GT Pressure Jet Range are high efficiency pressurised hot water boilers suitable for use with natural gas and light oil, by means of a pressure jet burner. Nominal output of the GT 330 boiler is between 70 and 330 kW, the GT 430 boiler is between 300 and 780 kW and the GT 530 boiler is between 348 and 1450 kW.
GT range can be fitted with a number of possible regulation systems : standard, B3, K3 or DIEMATIC-m3.

The heat exchanger, manufactured from corrosion resistant "Eutectic" cast iron gives high annual performance efficiency and means the boiler operates at low temperature with modulated start temperature from 30 - 40°.

The sizes of boiler parts are such that they can enter the boiler house through a normal entrance.  Thanks this, it is possible to install them anywhere (pre-assembly can also be requested).

  • An high annual performance yield
  • Optimal combustion hygiene and a low noise level
  • The possibility of total shutdown between two heating periods
  • Easy maintenance and sweeping

>> Discover the products of the range Project


Characteristics of the range

Model GT 330 GT 430 GT 530
Output 70 to 330 kW 300 to 780 kW 348 to 1450 kW
Type of boiler Low temperature Low temperature Low temperature 
Fuel source Oil / Gas
Function Heating only
Burner Oil or Gas (to be fitted)
Connection Chimney flue
Choice of regulation systems standard, B3, K3 or DIEMATIC-m3 standard, B3, K3 or DIEMATIC-m3 standard, B3, K3 or DIEMATIC-m3

Details of the models

Click on the model to get more details :

GT 330
GT 430
GT 530