| 摘要 |
<p>The heater (2) warms a dwelling (1) and it has a conduit (4) that evacuates combustion products to the outside. The dwelling has two aeration ducts (5,6) at different levels. Air from the dwelling enters the base zone of a non-horizontal sheath (7) traversed by the evacuation conduit, so that the air is heated. Natural convection accelerated by temperature rise lifts the air to the top inlet where it oscillates in the dwelling, falls to the outlet according to its rate of cooling, and then the cycle is repeated.</p> |
