| 摘要 |
<p>A water heater (100), comprising：an inner container (1); a waste discharge pipe (2), the waste discharge pipe (2) being provided at the bottom of the inner container (1) for discharging the waste water in the inner container (1); a water discharge pipe (3), one end of the water discharge pipe (3) extending into the inner container (1), and the other end being outside of the inner container (1); an air intake/exhaust valve (4), the air intake/exhaust valve (4) being provided on a water discharge pipe (3) outside of the inner container (1) and being in communication with the water discharge pipe (3).</p> |
