| 摘要 |
<p>PURPOSE:To inhibit manufacturing cast while economizing consumed energy by omitting a pump means for forcibly circulating heated air. CONSTITUTION:When an ascending current is generated by heating air in a vent pipe 5, air pressure in a circulating air chamber 2 increases while air pressure in the lower section of the vent pipe 5 reduces because warmed air ascends and flows into the circulating air chamber 2. Consequently, since pressure difference is generated at both end sections of a circulating air passage 6, air in the circulating air chamber 2 reaches the lower end section of the vent pipe 5 through the circulating air passage 6, and rises in the vent pipe 5 again from the lower end section of the vent pipe 5. Accordingly, when the circulating flow of heated air is generated, heated air dissipates heat to the walls 7 or floors 4 of living spaces 4 when heated air flows in the circulating air passage 6, and the living spaces 3 are heated on the basis of thermal radiation from the walls 7 or the floors 4.</p> |
