No.
It is heated by the water heater. A water heater refers to a device that uses various physical principles to increase the temperature of cold water and turn it into hot water within a certain period of time. According to different principles, they can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic energy water heaters, air water heaters, heated water heaters, etc. The air conditioning part and the hot water part. In fact, these two parts are closely linked, inseparable and must work at the same time.
Circulating water, if it is hot water that has been boiled repeatedly, is undoubtedly harmful. Such water will produce carcinogenic nitrite, so this type of water should not be drunk. As for bathing, skin and. The pores will absorb harmful substances to a greater or lesser extent. It is better not to use such water. If you bathe frequently,It is recommended to reduce the risk of disease through diet. You can take oxidized garlic appropriately or take vitamin C supplements.agent, or develop the habit of drinking Pu'er tea