This study investigated electrical properties and far-infrared ray emission according to the carbonizing temperature and phenol-formaldehyde (PF) resin impregnation ratio of ceramics manufactured using sawdust and rice husk. The far-infrared ray emission values and emission energy values decreased as the carbonizing temperature increased. The far-infrared ray emission values of the ceramics manufactured using a carbonizing process at 600℃ and a board with a PF resin impregnation ratio of 60 percent was 0.930; the emission energy presented the highest value of 4.32 × 10 w/m 2 . The electric resistance decreased as the carbonizing temperature increased. For the increase in the carbonizing temperature above 1200℃, ceramics was very close to a conductor due to the small resistance. The power consumption increased by the decrease of electric resistance and increase of the electric current in the case of a higher resin impregnation ratio.