HOT WATER STORAGE TYPE WATER HEATER

Japanese Patent JP2017089930

A

PROBLEM TO BE SOLVED: To provide a hot water storage type water heater capable of producing high-temperature hot water at constant temperature without depending on a unit price of electricity charge at arbitrary time, and capable of preventing the cost from becoming high.SOLUTION: The hot water storage type water heater includes boiling means, determination means and control means. The determination means determines whether the current time is a first time zone or a second time zone in which the unit price of electricity charge is more expensive than in the first time zone. The control means allows the boiling means to boil water in a first mode in the first time zone, and allows the boiling means to boil water in a second mode in which power consumption is smaller than that in the first mode in the first time zone. The control means controls the boiling means so that the temperature of the water boiled in the first mode and supplied to a hot water storage tank becomes the same as the temperature of the water boiled in the second mode and supplied to the hot water storage tank.SELECTED DRAWING: Figure 3

JPS5864443	HOT WATER STORAGE TANK HAVING WATER-LEAK WARNING FUNCTION
JP6138285	Heat pump water heater system

YANAGIMOTO KEI
KAZAMA SHIRO
KOMATSU MASAYUKI
TAKAYAMA KEISUKE
IBARADA NAOKI
OGAWA TAKASHI
INABA TADAHIKO
TAKAHASHI TAKESHI
AKAGI SATOSHI
NOMURA SATOSHI

JP2015217389A

May 25, 2017

November 05, 2015

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MITSUBISHI ELECTRIC CORP

F24H1/18; F24H1/00

JP2014122749A	2014-07-03
JP2007093113A	2007-04-12
JP2006183939A	2006-07-13
JP2012013371A	2012-01-19
JP2001255006A	2001-09-21
JP2014092288A	2014-05-19

Mamoru Takada
Hideki Takahashi
Jiro Ozawa

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