dr are connected with an inlet duct id to each other the inlet duct id is a hot air passage from the heater assembly 200 to the drum dr there is an outlet duct od connected to the other side of the drum dr the outlet duct od is a passage for discharging air and steam that dried the laundry from the drum mounted on an inside of the outlet duct od there is the fan f for generating suction force for drawing external air into the drum dr and discharging steam from the drum dr to an outside of the laundry dryer the panel frame is mounted to an upper side and a lower side of the cover cabinet 140 for mounting the control panel 400 or the cover panel to be explained later respectively the panel frame includes an upper panel frame 500 mounted to the upper side of the cover cabinet 140 and a lower panel frame 300 mounted to the lower side of the cover cabinet 140 in the lower panel frame 300 there is an opening 310 for taking the heater assembly 200 out of the body case 100 the opening 310 is in communication and arranged on a straight with a space of the body case 100 wherein the heater assembly 200 is mounted the opening 310 has a size enough to take out the heater assembly 200 it is preferable that the opening 310 has a shape similar to an outline of the heater assembly 200 for taking out the.