31INSTALLATION TYPE C13 - SEPARATED WALL TUBES Ø 60Fig. 18WARNING!the aforesaid lengths are to be understood in the case of installations in whichthe air tube and the flue pipe carry out a linear path as shown in the figure.Otherwise it is necessary to proceed with the calculation of the load loss check(see EXAMPLE OF CALCULATION).MAXIMUM ADMISSION LENGTHS (m)Mod.3545AIR PIPE1818FUMES TUBE1818INSTALLATION TYPE C13 - SEPARATED WALL TUBES Ø 80Fig. 19MAXIMUM ADMISSION LENGTHS (m)MAXIMUM ADMISSION LENGTHS (m)Mod.3545AIR PIPE3434FUMES TUBE3434INSTALLATION TYPE C53 - SEPARATED WALL TUBLES Ø 60INSTALLATION TYPE C13 - WALL COAXIAL C / TUBES Ø 60 - 100Fig. 20Mod.3545COAXIAL TUBE88WARNING!the aforesaid lengths are to be understood in the case of installations in whichthe air tube and the flue pipe carry out a linear path as shown in the figure.Otherwise it is necessary to proceed with the calculation of the load loss check(see EXAMPLE OF CALCULATION).WARNING!the aforesaid lengths are to be understood in the case of installations in whichthe air tube and the flue pipe carry out a linear path as shown in the figure.Otherwise it is necessary to proceed with the calculation of the load loss check(see EXAMPLE OF CALCULATION).