| 摘要 |
PURPOSE: A pellet oil boiler is provided to improve heat absorption rate by storing between water tube type three-passes, a main body, and a flue. CONSTITUTION: A pellet oil boiler heats water inside a boiler by absorbing inner heat and uses the heated water for hot water and heating. The water flows along the outside of the flue to discharge exhaust gas with low temperature. If a pellet fuel container(7) is out of order, an oil burner(8) is operated. If the supply of the pellet fuel is stopped, switches for pellet and oil are operated. |
