Hot water storage-type boiler having both heat amount proportional control function and backflow prevention function
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United States of America Patent
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May 17, 2022
Grant Date -
Feb 27, 2020
app pub date -
Oct 16, 2019
filing date -
Mar 19, 2018
priority date (Note) -
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Abstract
The present invention provides a hot water storage-type boiler having both a heat amount proportional control function and a backflow prevention function to prevent a backflow of exhaust gas with a simple structure. In the present invention, since a check valve is integrally coupled to a burner duct, there is an effect of convenient assembly. In addition, since the check valve is built in the burner duct, the check valve does not protrude to the outside, thereby having an effect that a separate space is not required.
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Family
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