| 摘要 |
PURPOSE: A hot water boiler with increased thermal efficiency is provided to increase thermal efficiency by absorbing the maximum heat of a combustion gas in a water tank. CONSTITUTION: A hot water boiler with increased thermal efficiency comprises a boiler container(10), an auxiliary container(20), and a box(21) for a flue. 6 flue tubes(12) are vertically connected to the inside of an upper water tank of the boiler container. 6 flue tubes eccentrically connect to the opposite side of an inlet equipped with a burner from the center of a lower combustion container(11). The auxiliary container is installed on the outside of the boiler container. 6 flue tubes(22) of the auxiliary container are vertically connected to the water tank between upper and lower plates to be symmetrical to the eccentric 6 flue tubes. The box for a flue is installed on the top of the eccentric 6 flue tube of the boiler container and the 6 flue tubes of the auxiliary container. |
