真空管太陽能熱水器效率高，在夏季晴天的情況下，不到兩天水溫可達沸點，若長時間不用水，如出差、旅遊時，使水箱內長時間處於高溫、高壓的狀態下，會促進密封圈的老化，加速聚氨酯的老化、萎縮，有時排氣不暢通，壓力太大還會使水箱脹壞，還會結水垢，縮短水箱的壽命。因此，若你長期不在家，應安排別人經常放熱水上冷水，或者在真空管集熱器上放置遮蓋物擋住陽光，待回家後，再除去。作者: eGVWz0Zsr 時間: 2017-12-4 01:47 標題: kanken bag these years
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