... for 24 hours a day, hot water want to use that to use3. Hot and cold dual-use \ convenient and ... transfer from heat faster, and thermal efficiency up to 98%; has more antiknock, more dirt, more anti ... \ energy-saving 30%: Using the terminal that is hot water, so that no preheat, no heat, no amount of ... health use: to keep the use of fresh water each time, I strongly do not last well-behaved, repeated ...