| 摘要 |
An apparatus for heating a fluid, such as water or pressurised air, comprises a heat generator 10, a flue 12 for exhaust gases produced by the heat generator, and a heat exchanger 14 situated adjacent to the flue. A fluid within the heat exchanger is heated by heat radiated from the flue. Preferably, the heat generator comprises a stove, a furnace or a boiler. Alternatively, the heat generator may comprise an engine (26, fig.2), where the flue comprises a vehicle exhaust pipe (28, fig. 2). The heat generator may generate heat from the combustion of a solid fuel, such as wood, coal or peat, or from the combustion of a liquid or gaseous fuel, such as oil or natural gas. Preferably, the heat exchanger is provided with an outlet 24 placed in fluid connection with one or more central heating radiators, or for supplying hot water. The apparatus may further comprise an electricity generator powered by a fluid, such as steam, heated in the heat exchanger. In a further aspect, a method for heating a fluid is disclosed. |
