| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid tank heating device capable of suppressing a liquid temperature drop in a liquid tank as much as possible when a gas burner of a gas chamber is extinguished.SOLUTION: A liquid tank heating device includes a liquid tank 4, a gas combustion chamber 6 with a gas burner 10 disposed for heating the liquid tank 4, an exhaust path 12 for discharging combustion exhaust gas from the gas combustion chamber 6 to an external space, and an opening/closing mechanism 14 disposed in the exhaust path 12. The opening/closing mechanism 14 is a mechanism for closing at least a portion of the exhaust path 12 when the gas burner 10 is extinguished. |
