Generally, in cold winter, the temperature of fish pond is too low, and the fish are frozen to death； in summer, the temperature of fish pond is too high, and the fish are hot to death or underdeveloped.The invention uses solar power as the power source, which can greatly reduce the expenditure of electricity and money, and uses solar ice water heater, which can produce ice water and hot water at the same time by using the high-efficiency operation of heat pump principle. In winter, the hot water can be heat exchanged with the water in the water tank (fish pool or sewage pool, etc.) by the heat exchange pipe set in the water tank (fish pool or sewage pool, etc.) to heat up.In summer, the ice water can also be cooled by the heat exchange pipe set in the water tank (fish pond or sewage pool, etc.) and the water in the water tank (fish pond or sewage pool, etc.), so that the temperature of the water tank (or sewage pool, etc.) can be regulated by using the energy of solar energy, so as to achieve the purpose of energy conservation, carbon reduction and environmental protection.一般魚池在寒冬時易發生魚池溫度過低，魚群受凍死亡；而夏天高溫時也易發生魚池溫度過高，魚群熱死或發育不良之情況。本創作使用太陽能發電為電源，可大為降低電力及金錢的支出，並使用太陽能冰熱水機，運用熱泵原理的高效力運轉，可同時產生冰水及熱水，熱水在冬天時可由設置在水槽(魚池或污水池等)內的熱交換管，與水槽(魚池或污水池等)內之水作熱交換以升溫。冰水在夏天時也可由設置在水槽(魚池或污水池等)內的熱交換管，與水槽(魚池或污水池等)內之水作熱交換以降溫，如此，可經由運用太陽能之能源，達到水槽(或污水池等)之溫度之調控，達到節能、減碳又環保之目的。
