The forest area of Japan is almost equal to that of Sweden. However, the utilization of the wood biomass in Japan has not been advancing. By the soaring oil prices from last year, the wood pellet price has become almost equivalent to the kerosene price at the standard heat quantity. As a result, if the supply system of the wood pellet becomes systematic, the wood pellet stoves and boilers would be more widely used. In this study, effective utilization of waste heat in the pellet stove is noticed. The system generating the electric power from not only conventional space heating by the stove but also the waste heat is constructed. And, the possibility of generating the electric power has been investigated experimentally. The waste heat of the stove is utilized for driving of the Stirling engine generator and the hot water supply. The possibility of electric power generation using a wood pellet stove is verified.