| 摘要 |
<p>The stove for a hot air heating system has a cylindrical fire grate in metal with the lower part lined with refractory material. The base of the fire grate forms a grid and the grate has a top cover with four holes. The hot gases from combustion flow through the holes into tubes and into a metal chamber. Baffles inside this chamber deflect the hot gases to an outlet leading to a chimney. The grate is surrounded by an outer casing with air inlets in its base. Air flowing into these inlets flows upwards over the external surfaces of the grate and around the chamber with a continuously rising temperature. The heated air then flows through outlets in the top of the housing to heat the room. Fuel is supplied through a door and ash is removed by the tray.</p> |
