... c. Suitable for different types of gas,rated gas pressure(Pa),LPG-2800,NG-2000,COAL GAS-1000;d. Environment friendly,CO(a ... heat efficiency.f. 10 protection functions;g. Remote controller and room temperature thermostat is optionalh. The main integrated controllern is compatible ... ventilation system including radiators, floor heating, fan coil wall mounted gas room heating boiler