| 摘要 |
<p>PROBLEM TO BE SOLVED: To limit a maximum use amount of city gas and to allow a warm water pool, a shower, heating and the like to be used in a comfortable state.SOLUTION: A gas heating device for a pool facility includes: a switching valve 6 for switching pool water to one of a gas heater 3 and a bypass passage 5; a gas water heater 4 for supplying hot water to a shower 10 and a faucet 11 of a pool facility; a flow rate sensor 7 for detecting a total flow rate which the gas heater 3 and the gas water heater 4 consume; a temperature sensor 8 for detecting a pool water temperature; and a control circuit 9 for controlling the switching valve 6 by the total flow rate and the pool water temperature. The control circuit 9, in a state where the pool water temperature is lower than a preset temperature and the total flow rate is smaller than the stored maximum flow rate, switches the switching valve 6 to a position in which the pool water flows into the gas heater 3 and heats the pool water by the gas heater 3, and in a state where the pool water temperature is lower than the preset temperature but the total flow rate is larger than the maximum flow rate, bypasses the pool water to the bypass passage 5 and does not heat the pool water by the gas heater 3.</p> |
