De Dietrich GTU C 220 are fuel oil condensing cast iron boilers with sealed pressurised combustion chamber and a tubular corrosion-resistant exchanger condenser on the flue gases in ceramic.

Boiler Range:

GTU C 225: boiler from 40 to  50 kW 
GTU C 226: boiler from 50 to  67 kW 
GTU C 227: boiler from 67 to  85 kW  

• Annual operating efficiency up to 104%.
• Heating body in eutectic cast iron.
• Large combustion chamber and 3-path flue way.
• Flue gas condenser collector with a ceramic exchange surface impervious to corrosion, fitted with the siphon for recovering the condensates and adjustable feet.
• Burner doors reversible.
• 2-stage fuel burner with post-ventilation, low polluants emissions (NOx) < 100mg/kWh (at 50/30°C)
• Choice of 2 control panels with DWH priority function:
• 3 way valve allowing in more the control of a circuit with a mixing valve (outlet sensor optional) Maximum working temperature: 100C
• Thermostat adjustable from 30 to 90C
• Safety thermostat: 110C