Title:
HOT WATER SUPPLY HEATING DEVICE
Document Type and Number:
Japanese Patent JP2019086224
Kind Code:
A
Abstract:
To improve heat efficiency of a hot water supply heating device.SOLUTION: A hot water supply heating device comprises a water heater, a water supply passage for supplying water for hot water supply to the water heater, a heater for heating water for heating using combustion gas, and a circulation passage for circulating the water for heating between the heater and a heating terminal. The circulation passage comprises a first heat exchanger arranged in the heater, and heating the water for heating with heat exchange with the combustion gas. The water supply passage comprises a second heat exchanger arranged in the heater, and heating the water for heating with heat exchange with combustion gas having passed through the first heat exchanger.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
OSHIMA KATSUYA
Application Number:
JP2017215071A
Publication Date:
June 06, 2019
Filing Date:
November 07, 2017
Export Citation:
Assignee:
RINNAI KK
International Classes:
F24D3/08; F24H1/14; F24H8/00
Domestic Patent References:
| JP2001201180A | 2001-07-27 | |||
| JP2007187419A | 2007-07-26 | |||
| JP2010101524A | 2010-05-06 | |||
| JP2007322071A | 2007-12-13 | |||
| JP2015102312A | 2015-06-04 | |||
| JP2016044954A | 2016-04-04 |
Attorney, Agent or Firm:
Kaiyu International Patent Office