Rinnai Corporation

Shinichi Yue

Keiichi Ito

Yoshinori Fujisawa

Shinji Kuroda

Disclosed is a space heater, with an air cleaning function, that monitors combustion at a burner, and prevents the halting of combustion due to the erroneous detection of a combustion abnormality. According to the present invention, a space heater includes: a heating unit control unit, which performs a 'heating operation' for igniting fuel gas at a burner to operate a heating fan; an air cleaning unit control unit, which performs an 'air cleaning operation' for operating an ion generator and an air cleaning fan; a combustion forced halt unit, for monitoring the combustion state of the burner based on a thermoelectromotive force TC generated by a thermocouple, and for halting combustion at the burner when the thermoelectromotive force TC drops, from a reference value TC_b, the equivalent of a determination level TC_j or more; and a reference value setup unit for, when the mode is shifted from an &#x201c;independent heating mode&#x201d;, during which only the &#x201c;heating operation&#x201d; is performed, to a &#x201c;synchronous operating mode&#x201d;, during which both the &#x201c;heating operation&#x201d; and the &#x201c;air cleaning operation&#x201d; are performed, designating as the reference value TC_b the thermoelectromotive force TC, generated by the thermocouple, that is stabilized after mode switch.

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Nagoya, Japan

Shinichi Yue