| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reservoir type hot water supply device capable of securing a stored hot water amount responding to a used hot water amount without causing hot water shortage by improving supply efficiency of hot water. <P>SOLUTION: The reservoir type hot water supply device A is provided with a hot water storage tank 11 for storing hot water, and a heating means 2 for carrying out boiling operation in a plurality of boiling operation modes in response to boiling capacity of the hot water in the hot water storage tank 11. The heating means 2 is provided with a rated output operation mode carrying out boiling operation by a set normal output, a speed operation mode carrying out boiling to a first set temperature by an output larger than the output of the rated output operation mode, and a powerful operation mode carrying out boiling to a second set temperature higher than the first set temperature by an output larger than the output of the rated output operation mode, and smaller than the output of the speed operation mode. <P>COPYRIGHT: (C)2007,JPO&INPIT |
