| 摘要 |
The flue pipe (5) exceeding from the stove is heated when a fire is lit in the stove. A first pump is activated when the temperature of the flue pipe (5) exceeds a particular temperature and water pumped from a storage tank through a copper pipe (3) wound around its outer surface and covered by an outer pipe (1). The advance pump of the gas, oil, or electrically operated central heating system is switched off and the heated water guided into the circuit. When the temperature falls below a predetermined level the advance pump is activated automatically. |
