COMBUSTION CONTROL METHOD FOR BATH BOILER

摘要

PURPOSE:To reduce temperature difference between hot water discharged from a bus adapter and hot water in a bath for reducing uncomfortable feeling, by reducing the thermal efficiency of a bath boiler by increasing the feed rate of combustion air when the temperature of hot water in a bath reaches a specified temperature with respect to the final set temperature. CONSTITUTION:Changes in thermal efficiency of a bath boiler at around the set temperature of hot water in a bath is carried out only by changing the rotating speed of a fan 21 to change the feed rate of combustion air. Therefore, an expensive proportional valve is unnecessary to be furnished, and extreme high temperature of hot water is prevented from being discharged from a bath adapter, etc. so that an uncomfortable feeling to users can be reduced.