Water heat recycling

but "If you heat up plastics, you could increase the leaching of phthalates" and "It is very important to drink adequate amounts of water ... Unless you

蒸餾 逆滲透 硬水軟化 Choosing Home Water Filters & Other Water Treatment Systems | Drinking Water | Healthy Water. Centers for Disease Control and Prevention

軟水劑 硬度 (水) Hard water. Encyclopædia Britannica. 20 July 1998 [4 March 2015]. ISBN 9781593392925.  Stephen Lower. Hard water and water softening. July

discharge of water through the then slightly open valve under full water pressure; this delayed action continuing until the slowed delivery of water to the

管路系統或其子系統的主要分類有： 用于飲用的冷熱自来水供應 下水道和現場污水處理系統（英语：septic system），不論其是否包括废水热回收（英语：Water heat recycling）、灰水（使用過的水）回收處理系統 雨水、地表水及地下水的排水 燃氣管道 循環加熱冷卻系統（英语：hydronics）：即利用水來