Abstract
We report a study of using the waste heat from a window-type air-conditioner to heat water for domestic use. Results show 401 of water can be heated to about 90°C in about 3 1 2 h and the room cools faster when the water heating system is introduced than in the case when it functions normally. A qualitative discussion of the efficiency of the water heating system is presented. This elimination of the traditional unnecessary waste of energy can be a significant saving of energy in Malaysia where window units and traditional (electrically heated) hot water tanks are common in typical housing estates in Malaysia.
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