| 摘要 |
A portable heat dispensing unit is provided with retractable ducts, and an internal heat chamber, having suitable in line apertures in the heater container vessel and heat chamber to accept a source of heat from from inserted burners. The heat is then fan blown through a retractable duct fastened to the heat chamber which can be directed to deliver the heat where desired. Other accessory components are: A thermometer to monitor the heat intensity: A second retractable duct surrounding the heat duct to insulate it from cold winds, and also for use as a return air duct when heat is applied to an enclosed space such as a tent or room. An opening is provided into the container vessel between the two ducts to allow the return air to be recirculated by a fan which moves the air through the heat chamber. The burner insertion holes in the container vessel also act as auxiliary air openings providing make up air access for burner requirements. A support tube which is mounted on the container vessel provides a mounting means for dowel extensions to support the heat duct when extended so it can be used as a warming station. Ducts can be retracted and secured at the container vessel. The container vessel also has internal space that is accessible to store the components of the heater and a handle to carry it. The assembly makes a compact heating unit that can be powered by a rechargeable battery to operate the fan, making it completely self powered and portable.
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