COMBUSTION DEVICE

摘要

The present invention relates to a combustion device, more specifically, to a combustion device with improved thermal efficiency. According to the present invention, the combustion device includes: a combustion path having a body for providing a fuel combustion space; a combustion gas discharging section for discharging combustion gas generated in the body; a heat collecting section for connecting the body of the combustion path to the combustion gas discharging section and passing air which has been heated in the combustion path; a housing for receiving the body of the combustion path and the heat collecting section and formed with an inlet and an outlet; and a heat medium conveying device for making external air flow into the housing via the inlet of the housing. The combustion path is provided with at least one air supply pipe for guiding air in the housing to the inside of the body.